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Standard Reference Materials - Historical Archived Certificates/Reports of Investigation

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SRM 1 - Argillaceous Limestone, July 1, 1910
SRM 1a - Argillaceous Limestone (All results are based on a sample dried for 1 hour at 105 °C to 110 °C), January 8, 1931
SRM 1b - Argillaceous Limestone (All analyses are based on samples dried 2 hours at 110 °C), November 8, 1966
SRM 1c - Argillaceous Limestone, March 12, 1990
SRM 2 - Zinc Ore, February 1, 1919
SRM 2a - Zinc Ore, Provisional, May 1, 1933
SRM 3 - White Iron, March 27, 1958
SRM 3a - White Iron, December 14, 1962
SRM 3b - White Iron, March 11, 1969
SRM 3c - White Iron, March 17, 1969
SRM 3d - White Iron, April 2, 1979
SRM 4 - Analyses of Standardized Iron, February 1, 1906
SRM 4a - Iron B, April 15, 1910
SRM 4b - Iron B, September 1, 1918
SRM 4c - Cast Iron, February 26, 1924
SRM 4d - Cast Iron, January 4, 1929
SRM 4e - Cast Iron, October 10, 1934
SRM 4f - Cast Iron, November 18, 1943
SRM 4g - Cast Iron, August 29, 1947
SRM 4h - Cast Iron, January 21, 1953
SRM 4i - Cast Iron, November 29, 1957
SRM 4j - Cast Iron, January 25, 1971
SRM 4k - Cast Iron, May 27, 1976
SRM 5 - Analyses or Standardized Iron, February 1, 1906
SRM 5 - Copper Heat, March 19, 1992
SRM 5a - Iron C, April 15, 1910
SRM 5b - Iron C, January 1, 1914
SRM 5c - Iron C, Provisional, August 1, 1918
SRM 5c - Iron C, September 1, 1918
SRM 5d - Iron C, July 25, 1921
SRM 5e - Cast Iron, September 25, 1925
SRM 5f - Cast Iron, January 4, 1929
SRM 5g - Cast Iron, October 10, 1934
SRM 5h - Cast Iron, May 22, 1943
SRM 5i - Cast Iron, February 10, 1947
SRM 5j - Cast Iron, January 21, 1953
SRM 5k - Cast Iron, July 23, 1956
SRM 5l - Cast Iron, October 10, 1967
SRM 6 - Analyses of Standardized Iron, February 1, 1906
SRM 6a - Iron D, June 15, 1910
SRM 6b - Iron D, June 1, 1916
SRM 6c - Iron D, February 1, 1920
SRM 6d - Iron D, January 21, 1928
SRM 6e - Iron D, November 18, 1943
SRM 6f - Iron D, November 30, 1955
SRM 7 - Iron E, June 1, 1917
SRM 7a - Iron E, July 22, 1921
SRM 7b - Iron E, May 4, 1926
SRM 7c - Iron E (High Phosphorus), April 20, 1934
SRM 7d - Iron E (High Phosphorus), July 10, 1945
SRM 7e - Iron E (High Phosphorus), July 8, 1951
SRM 7f - Iron E (High Phosphorus), November 30, 1955
SRM 7g - Iron E (High Phosphorus), October 5, 1959
SRM 8a - Bessemer Steel, 0.1% Carbon, June 1, 1911
SRM 8b - Bessemer Steel, 0.1% Carbon, September 1, 1918
SRM 8c - Bessemer Steel, 0.1% Carbon, September 15, 1924
SRM 8d - Bessemer Steel, 0.1% Carbon, June 19, 1928
SRM 8e - Bessemer Steel, 0.1% Carbon, March 15, 1937
SRM 8f - Bessemer Steel, 0.1% Carbon, October 1, 1941
SRM 8g - Bessemer Steel, 0.1% Carbon, May 3, 1944
SRM 8h - Bessemer Steel, 0.1% Carbon, Provisional, January 19, 1954
SRM 8h - Bessemer Steel, 0.1% Carbon, March 31, 1955
SRM 8i - Bessemer Steel, 0.1% Carbon, December 15, 1958
SRM 8i - Bessemer Steel, 0.1% Carbon, May 5, 1965
SRM 8j - Bessemer Steel 0.1% Carbon, Provisional, January 17, 1972
SRM 8j - Bessemer Steel, 0.1% Carbon, April 10, 1972
SRM 9 - Analyses of Standardized Bessemer 0.2
SRM 9a - Bessemer Steel, 0.2% Carbon, May 5, 1911
SRM 9b - Bessemer Steel, 0.2% Carbon, November 9, 1918
SRM 9c - Bessemer Steel, 0.2% Carbon, November 5, 1924
SRM 9d - Bessemer Steel, 0.2% Carbon, March 12, 1943
SRM 10 - Analyses of Standardized Steel, Bessemer 0.4, July 1, 1907
SRM 10a - Analyses of Standardized Steel, Bessemer 0.4
SRM 10b - Bessemer Steel, 0.4 % Carbon, October 20, 1913
SRM 10c - Bessemer Steel, 0.4 % Carbon
SRM 10d - Bessemer Steel, 0.4 % Carbon, November 7, 1927
SRM 10e - Bessemer Steel, 0.4 % Carbon, November 15, 1944
SRM 10f - Bessemer Steel, 0.4 % Carbon, March 15, 1955
SRM 10g - Bessemer Steel, 0.4 % Carbon, October 14, 1965
SRM 11 - Standardized Steel, January 1, 1908
SRM 11a - Basic Open-Hearth Steel, 0.2 % Carbon, March 20, 1911
SRM 11b - Basic Open-Hearth Steel, 0.2 % Carbon, November 9, 1918
SRM 11c - Basic Open-Hearth Steel, 0.2 % Carbon, May 8, 1923
SRM 11d - Basic Open-Hearth Steel, 0.2 % Carbon, September 1, 1929
SRM 11e - Basic Open-Hearth Steel, 0.2 % Carbon, February 10, 1944
SRM 11f - Basic Open-Hearth Steel, 0.2 % Carbon, August 1, 1949
SRM 11g - Basic Open-Hearth Steel, 0.2 % Carbon, May 18, 1956
SRM 11h - Basic Open-Hearth Steel, 0.2% Carbon, Provisional, September 1, 1966
SRM 11h - Basic Open-Hearth Steel, 0.2 % Carbon, February 20, 1992
SRM 12a - Basic Open-Hearth Steel, 0.4 % Carbon, February 1, 1911
SRM 12b - Basic Open-Hearth Steel, 0.4 % Carbon, May 1, 1917
SRM 12c - Basic Open Hearth Steel, 0.4 % Carbon, March 18, 1925
SRM 12d - Basic Open-Hearth Steel, 0.4 % Carbon, November 20, 1930
SRM 12e - Basic Open-Hearth Steel, 0.4 % Carbon, September 30, 1944
SRM 12f - Basic Open-Hearth Steel, 0.4 % Carbon, January 3, 1955
SRM 12g - Basic Open-Hearth Steel, 0.4 % Carbon, May 15, 1958
SRM 13a - Basic Open-Hearth Steel, 0.6 % Carbon, October 21, 1911
SRM 13b - Basic Open-Hearth Steel, 0.6 % Carbon, August 2, 1920
SRM 13c - Basic Open-Hearth Steel, 0.6 % Carbon, March 26, 1926
SRM 13d - Basic Open-Hearth Steel, 0.6 % Carbon, April 2, 1942
SRM 13e - Basic Open-Hearth Steel, 0.6 % Carbon, November 28, 1950
SRM 13f - Basic Open-Hearth Steel, 0.6 % Carbon, January 30, 1958
SRM 14 - Basic Open-Hearth Steel, 0.8 % Carbon, May 1, 1910
SRM 14a - Basic Open Hearth Steel, 0.8 % Carbon, August 15, 1911
SRM 14b - Basic Open-Hearth Steel, 0.8 % Carbon, October 9, 1922
SRM 14c - Basic Open-Hearth Steel, 0.8 % Carbon, January 5, 1938
SRM 14d - Basic Open-Hearth Steel, 0.8 % Carbon, Provisional, August 7, 1953
SRM 14d - Basic Open-Hearth Steel, 0.8 % Carbon, February 15, 1955
SRM 14e - Basic Open-HHearth Steel, 0.8 % Carbon, November 9, 1965
SRM 14e - Basic Open-Hearth Steel, 0.8% Carbon, Provisional, March 10, 1965
SRM 14f - Basic Open-Hearth Steel Carbon- (AISI 1078), February 24, 1981
SRM 15 - Basic Open Hearth Steel, 0.1, February 8, 1908
SRM 15a - Basic Open Hearth Steel, 0.1 % Carbon, June 23, 1915
SRM 15b - Basic Open Hearth Steel, 0.1 % Carbon, September 25, 1925
SRM 15c - Basic Open-Hearth Steel, 0.1 % Carbon, February 28, 1940
SRM 15d - Basic Open Hearth Steel, 0.1 % Carbon, December 3, 1943
SRM 15e - Basic Open Hearth Steel, 0.1 % Carbon, November 10, 1953
SRM 15f - Basic Open Hearth Steel, 0.1 % Carbon, December 19, 1956
SRM 15g - Basic Open Hearth Steel, 0.1% Carbon, April 30, 1974
SRM 16 - Basic Open Hearth Steel, 1.0, February 8, 1908
SRM 16a - Basic Open-Hearth Steel, 1.0 % Carbon, May 20, 1914
SRM 16b - Basic Open-Hearth Steel, 1.0 % Carbon, December 5, 1925
SRM 16c - Basic Open-Hearth Steel, 1.0 % Carbon, February 5, 1935
SRM 16d - Basic Open-Hearth Steel, 1.0 % Carbon, June 1, 1956
SRM 16e - Basic Open-Hearth Steel, 1.1 % Carbon, April 30, 1974
SRM 17 - Sucrose, April 1, 1963
SRM 17a - Sucrose, December 26, 1967
SRM 17c - Sucrose, April 1, 1981
SRM 17d - Sucrose, September 24, 1993
SRM 17e - Sucrose, September 16, 2003
SRM 18 - Acid Open-Hearth, 0.1, August 28, 1960
SRM 19 - Acid Open-Hearth, 0.2, August 28, 1960
SRM 19a - Acid Open-Hearth Steel, 0.2 % Carbon, June 15, 1912
SRM 19b - Acid Open-Hearth Steel, 0.2 % Carbon, May 3, 1922
SRM 19c - Acid Open-Hearth Steel, 0.2 % Carbon, September 1, 1929
SRM 19d - Acid Open-Hearth Steel, 0.2 % Carbon, February 10, 1944
SRM 19e - Acid Open-Hearth Steel, 0.2 % Carbon, July 28, 1948
SRM 19f - Acid Open-Hearth Steel, 0.2 % Carbon, Provisional, May 4, 1954
SRM 19f - Acid Open-Hearth Steel, 0.2 % Carbon, April 8, 1955
SRM 19g - Acid Open-Hearth Steel, 0.2 % Carbon, Provisional, February 14, 1964
SRM 19g - Acid Open-Hearth Steel, 0.2 % Carbon, September 30, 1964
SRM 20 - Acid Open-Hearth 0.4 %
SRM 20a - Acid Open-Hearth Steel, 0.4 % Carbon, December 1, 1916
SRM 20b - Acid Open-Hearth Steel, 0.4 % Carbon, January 28, 1922
SRM 20c - Acid Open-Hearth Steel, 0.4 % Carbon, October 14, 1926
SRM 20d - Acid Open-Hearth Steel, 0.4 % Carbon, February 28, 1940
SRM 20e - Acid Open-Hearth Steel, 0.4 % Carbon, April 20, 1948
SRM 20f - Acid Open-Hearth Steel, 0.4 % Carbon, August 20, 1956
SRM 21 - Acid Open-Hearth, 0.6 %
SRM 21a - Acid Open Hearth Steel, 0.6 % Carbon, December 1, 1916
SRM 21b - Acid Open-Hearth Steel, 0.6 % Carbon, September 26, 1923
SRM 21c - Acid Open-Hearth Steel, 0.6 % Carbon, July 1, 1930
SRM 21d - Acid Open-Hearth Steel, 0.6 % Carbon, March 1, 1948
SRM 22 - Bessemer Steel, 0.6 % Carbon, March 1, 1910
SRM 22a - Bessemer Steel, 0.6 % Carbon, November 9, 1918
SRM 22b - Bessemer Steel, 0.6 % Carbon, July 20, 1926
SRM 22c - Bessemer Steel, 0.5 % Carbon, August 28, 1946
SRM 23 - Bessemer Steel, 0.8 % Carbon, March 1, 1910
SRM 23a - Bessemer Steel, 0.8 % Carbon, January 24, 1921
SRM 24 - Vanadium Steel, 0.15 % Vanadium, October 1, 1910
SRM 25 - Manganese Ore (Dried at 120°), July 1, 1910
SRM 25a - Manganese Ore (Dried at 120°), June 1, 1920
SRM 25b - Manganese Ore, April 1, 1927
SRM 25c - Manganese Ore, Provisional, April 25, 1966
SRM 26 - Crescent Iron Ore (Dried at 100°), September 20, 1930
SRM 27 - "Sibley" Iron Ore (Dried at 100°)
SRM 27a - "Sibley" Iron Ore (Dried at 100°), November 1, 1918
SRM 27a - "Sibley" Iron Ore (Dried at 100°)
SRM 27b - "Sibley" Iron Ore (Dried at 100°), August 1, 1935
SRM 27c - Mesabi Iron Ore, Provisional, December 28, 1951
SRM 27d - Mesabi Iron Ore, Provisional, June 3, 1960
SRM 27e - Sibley Iron Ore, June 21, 1966
SRM 27f - Sibley Iron Ore, December 30, 1991
SRM 28 - Norrie Iron Ore, July 1, 1910
SRM 28a - Norrie Iron Ore, March 29, 1948
SRM 29 - Magnetite Iron Ore (Dried at 100°)
SRM 29a - Magnetite Iron Ore (Dried at 105 °C), Provisional, July 16, 1939
SRM 30 - Chrome-Vanadium Steel, June 20, 1912
SRM 30a - Chrome-Vanadium Steel, July 10, 1919
SRM 30b - Chrome-Vanadium Steel, October 24, 1922
SRM 30c - Chrome-Vanadium Steel, November 5, 1929
SRM 30d - Chrome-Vanadium Steel, January 2, 1943
SRM 30e - Chrome-Vanadium Steel, Provisional, March 15, 1954
SRM 30e - Chrome-Vanadium Steel, March 15, 1955
SRM 31 - Chrome-Tungsten Steel, December 1, 1912
SRM 32 - Chrome-Nickel Steel, June 20, 1912
SRM 32a - Chrome-Nickel Steel
SRM 32b - Chrome-Nickel Steel, September 20, 1927
SRM 32c - Chrome-Nickel Steel, April 6, 1943
SRM 32d - Chrome-Nickel Steel, July 14, 1949
SRM 33 - Nickel Steel, June 20, 1912
SRM 33a - Nickel Steel, August 25, 1921
SRM 33b - Nickel Steel, April 10, 1928
SRM 33c - Nickel Steel, May 15, 1944
SRM 33d - Nickel Steel, June 10, 1955
SRM 34 - Acid Open-Hearth Steel, 0.8% Carbon, June 15, 1913
SRM 34a - Acid Open-Hearth Steel, 0.8% Carbon, November 15, 1928
SRM 35 - Acid Open-Hearth Steel, 1.0% Carbon, June 15, 1913
SRM 35a - Acid Open-Hearth Steel, 1.0% Carbon, March 19, 1927
SRM 36 - Chromium Molybdenum Steel, March 30, 1942
SRM 36a - Chromium Molybdenum Steel, September 25, 1950
SRM 37 - Sheet Brass, January 15, 1914
SRM 37a - Sheet Brass, July 30, 1920
SRM 37b - Sheet Brass, February 14, 1923
SRM 37c - Sheet Brass, January 16, 1942
SRM 37d - Sheet Brass, January 28, 1946
SRM 37e - Sheet Brass, August 28, 1958
SRM 38 - Naphthalene
SRM 38a - Naphthalene
SRM 38b - Naphthalene, March 20, 1930
SRM 39 - Benzoic Acid
SRM 39a - Benzoic Acid
SRM 39b - Benzoic Acid, January 7, 1922
SRM 39c - Benzoic Acid, November 4, 1925
SRM 39d - Benzoic Acid, October 30, 1929
SRM 39e - Benzoic Acid, October 16, 1933
SRM 39f - Benzoic Acid, February 12, 1946
SRM 39g - Benzoic Acid, May 28, 1951
SRM 39h - Benzoic Acid, April 15, 1958
SRM 39i - Benzoic Acid Calorimetric Standard, Provisional, July 14, 1965
SRM 39i - Benzoic Acid Calorimetric Standard, July 15, 1968
SRM 40 - Sodium Oxalate, August 27, 1912
SRM 40a - Sodium Oxalate, June 1, 1920

SRM 40b - Sodium Oxalate, June 1, 1920
SRM 40c - Sodium Oxalate, October 23, 1929
SRM 40d - Sodium Oxalate, Provisional, June 27, 1940
SRM 40e - Sodium Oxalate, Provisional, April 26, 1945
SRM 40f - Sodium Oxalate, Provisional, February 1, 1952
SRM 40g - Sodium Oxalate, August 11, 1958
SRM 40h - Sodium Oxalate, May 19, 1992
SRM 41 - Dextrose, Lot #6094April 5, 1963
SRM 41 - Dextrose Lot #4854
SRM 41a - Dextrose, December 26, 1967
SRM 41b - Dextrose, December 27, 1982
SRM 41c - Dextrose, May 27, 1993
SRM 42 - Tin (Melting Point or Freezing Point)
SRM 42a - Tin (Melting Point or Freezing Point)
SRM 42b - Tin (Melting Point or Freezing Point), May 2, 1927
SRM 42c - Tin (Melting Point or Freezing Point), June 20, 1936
SRM 42d - Tin (Melting Point or Freezing Point), January 23, 1943
SRM 42e - Tin (Melting Point or Freezing Point), March 20, 1953
SRM 42f - Tin (Melting Point or Freezing Point), December 6, 1971
SRM 42g -Tin Secondary Freezing Point Standard, July 18, 1972
SRM 43 - Zinc (Melting Point or Freezing Point)
SRM 43a - Zinc (Melting Point or Freezing Point)
SRM 43b - Zinc - (Freezing Point or Melting Point), October 12, 1926
SRM 43c - Zinc (Freezing Point or Melting Point on the International Temperature Scale), May 22, 1930
SRM 43d - Zinc (Melting Point or Freezing Point), August 22, 1936
SRM 43e - Zinc (Melting Point or Freezing Point on the International Temperature Scale), January 23, 1943
SRM 43f - Zinc Pyrometric (Melting Point or Freezing Point on the International Temperature Scale), March 20, 1953
SRM 43g - Zinc (Freezing Point on the International Temperature Scale of 1948),October 31, 1957
SRM 43h - Zinc (Freezing Point on the International Temparature Scale of 1990), April 5, 1990
SRM 44 - Aluminum Melting Point or Freezing Point
SRM 44a - Aluminum Melting Point or Freezing Point, March 9, 1923
SRM 44b - Aluminum Melting Point or Freezing Point, May 23, 1927

SRM 44c - Aluminum Melting Point or Freezing Point
on the International Temperature Scale, May 24, 1932
SRM 44d - Aluminum Melting Point or Freezing Point on the International Temperature Scale, March 10, 1948
SRM 44e - Aluminum Melting Point or Freezing Point on the International Temperature Scale, December 6, 1971
SRM 44f - Aluminum Melting Point or Freezing Point on the International Temperature Scale, April 12, 1990
SRM 45 - Copper (Melting Point or Freezing Point)
SRM 45a - Copper (Melting Point or Freezing Point on the International Temperature Scale of 1948)
SRM 45b - Copper Pyrometric (Melting Point or Freezing Point on the International Temp Scale of 1948), December 15, 1949
SRM 45c - Copper Pyrometric (Melting Point or Freezing Point on the International Temp Scale of 1948), Provisional, September 2, 1953
SRM 45d - Copper Pyrometric (Melting Point or Freezing Point on the International Temperature Scale of 1948),December 6, 1971
SRM 49 - Lead (Melting Point or Freezing Point on the International Temperature Scale), February 24, 1921
SRM 49a - Lead (Melting Point or Freezing Point on the International Temperature Scale), December 18, 1933
SRM 49b - Lead (Melting Point or Freezing Point on the International Temperature Scale), January 23, 1943
SRM 49c - Lead (Melting Point or Freezing Point on the International Temperature Scale), May 10, 1948
SRM 49d - Lead (Melting Point or Freezing Point on the International Temperature Scale), March 20, 1953
SRM 49e - Lead (Melting Point or Freezing Point on the International Temperature Scale), December 6, 1971
SRM 50 - Chrome-Tungsten-Vanadium Steel, February 1, 1921
SRM 50a - Chrome-Tungsten-Vanadium Steel, July 1, 1930
SRM 50b - Chrome-Tungsten-Vanadium Steel, November 20, 1944
SRM 51 - Electric Steel, 1.2 % Carbon, January 15, 1921
SRM 51a - Electric Steel, 1.2 % Carbon, July 6, 1937
SRM 51b - Electric Steel, 1.2 % Carbon, October 20, 1957
SRM 52 - Cast Bronze, July 6, 1921
SRM 52a - Cast Bronze, April 22, 1941
SRM 52b - Cast Bronze, April 24, 1945
SRM 52c - Cast Bronze, August 19, 1952
SRM 53 - Lead-Base Bearing Metal, December 10, 1921
SRM 53a - Lead-Base Bearing Metal, July 24, 1939
SRM 53b - Lead-Base Bearing Metal, October 15, 1944

SRM 53c - Lead-Base Bearing Metal, July 11, 1951
SRM 53d - Lead-Base Bearing Metal, September 21, 1956

SRM 54 - Tin-Base Bearing Metal, February 2, 1923
SRM 54a - Tin-Base Bearing Metal, October 5, 1939
SRM 54b - Tin-Base Bearing Metal, June 17, 1944
SRM 54c - Tin-Base Bearing Metal, July 8, 1949
SRM 55 - Ingot Iron, September 26, 1923
SRM 55a - Open-Hearth Iron, September 21, 1936
SRM 55b - Open-Hearth Iron, October 26, 1948
SRM 55c - Open-Hearth Iron, Provisional, November 16, 1950
SRM 55d - Open-Hearth Iron, October 17, 1955
SRM 55e - Open-Hearth Iron, Provisional, April 26, 1960
SRM 55e - Open-Hearth Iron, February 2, 1961

SRM 56 - Tennessee Phosphate Rock, May 20, 1927
SRM 56a - Phosphate Rock (Tennessee Brown), April 4, 1939
SRM 56b - Phosphate Rock (Tennessee Brown), Provisional, February 4, 1947
SRM 57 - Refined Silicon, November 28, 1924
SRM 57 - Refined Silicon, February 7, 1973
SRM 57a - Refined Silicon, May 24, 1993
SRM 58 - Ferrosilicon 75% Grade, November 29, 1924
SRM 59 - Ferrosilicon 50% Grade, November 29, 1924
SRM 60 - Ferrovanadium (Low Carbon), November 28, 1924
SRM 61 - Ferrovanadium (High Carbon), November 28, 1924
SRM 61a - Ferrovanadium, April 15, 1946
SRM 62 - Manganese Bronze, January 2, 1924
SRM 62a - Manganese Bronze, March 10, 1942
SRM 62b - Manganese Bronze, June 30,1944
SRM 62c - Manganese Bronze, July 30, 1954
SRM 62d - Manganese Bronze, October 12, 1959
SRM 63 - Phosphor Bronze Bearing Metal
SRM 63a - Phosphor Bronze Bearing Metal, February 17, 1944
SRM 63b - Phosphor Bronze Bearing Metal, July 22, 1948
SRM 63c - Phosphor Bronze Bearing Metal, December 1, 1955
SRM 64 - Ferrochromium (High Carbon), Provisional, July 21, 1924
SRM 64 - Ferrochromium (High Carbon), November 28, 1924
SRM 64a - Ferrochromium (High Carbon), April 16, 1948
SRM 64b - Ferrochromium (High Carbon), Provisional, October 17, 1960
SRM 64b - Ferrochromium (High Carbon), January 8, 1962
SRM 65 - Acid Electric Steel, December 18, 1924
SRM 65a - Acid Electric Steel, August 20, 1930
SRM 65b - Acid Electric Steel, 0.3% Carbon, April 30, 1942
SRM 65c - Basic Electric Steel, 0.3% Carbon, July 16, 1946
SRM 65d - Basic Electric Steel, 0.3% Carbon, October 30, 1958
SRM 66 - Spiegeleisen, Provisional, November 6, 1924
SRM 66a -Spiegeleisen, Provisional, November 24, 1947
SRM 67 - Manganese Metal, October 16, 1925
SRM 68 - Ferromanganese, October 16, 1925
SRM 68a - Ferromanganese, May 28, 1942
SRM 68b - Ferromanganese, October 20, 1953
SRM 69 - Bauxite, May 3, 1926
SRM 69a - Bauxite, Provisional, December 21, 1958
SRM 70 - Feldspar, July 19,1926
SRM 71 - Calcium Molybdate, February 1, 1929
SRM 72 - Chrome-Molybdenum Steel, May 18, 1927
SRM 72a - Chrome-Molybdenum Steel, September 25, 1936
SRM 72b - Chrome-Molybdenum Steel, August 3, 1942
SRM 72c - Chrome-Molybdenum Steel, October 31, 1944
SRM 72d - Chrome-Molybdenum Steel, October 1, 1948
SRM 72e - Chrome-Molybdenum Steel, October 1, 1948
SRM 72f - Chrome-Molybdenum Steel, July 20, 1965
SRM 73 - Stainless Steel, July 14, 1927
SRM 73a - Stainless Steel, 14% Chromium, January 18, 1944
SRM 73b - Stainless Steel, 13% Chromium, Provisional, May 31, 1955
SRM 73b - Stainless Steel, 13% Chromium, April 15, 1958
SRM 74 - Cast Iron, May 4, 1926
SRM 75 - Ferrotungsten, October 1, 1928
SRM 76 - Burnt Refractory, March 15, 1927
SRM 76a - Burnt Refractory, March 20, 1992
SRM 77 - Burnt Refractory, March 15, 1927
SRM 77a - Burnt Refractory, March 20, 1992
SRM 78 - Burnt Refractory, March 15, 1927
SRM 78a - Burnt Refractory, March 20, 1992
SRM 79 - Fluorspar, September 21, 1929
SRM 80 - Soda-Lime Glass, June 17, 1927
SRM 81 - Glass Sand, May 1, 1928
SRM 82 - Nickel-Chromium Cast Iron, January 21, 1928
SRM 82a - Nickel-Chromium Cast Iron, October 15, 1949
SRM 83 - Arsenic Trioxide, June 20, 1927
SRM 83a - Arsenic Trioxide, May 10, 1948
SRM 83b - Arsenic Trioxide, April 15, 1958
SRM 83c - Arsenic Trioxide, Provisional,February 6, 1962
SRM 84 - Acid Potassium Phthalate, May 27, 1927
SRM 84a - Acid Potassium Phthalate, March 7, 1938
SRM 84b - Acid Potassium Phthalate, Provisional
SRM 84c - Acid Potassium Phthalate, Provisional, August 10, 1945
SRM 84d - Acid Potassium Phthalate, Provisional, September 1, 1950
SRM 84e - Acid Potassium Phthalate, Provisional, January 7, 1955
SRM 84f - Acid Potassium Phthalate, Provisional, July 1, 1958
SRM 84g - Acidmetric Standard, Provisional, January 19, 1966
SRM 84h - Acid Potassium Phthalate, Provisional, September 27, 1966
SRM 84j - Acid Potassium Phthalate, January 11, 1993
SRM 85 - Aluminum Alloy (Duralumin), July 12, 1943
SRM 85a - Aluminum Alloy (Wrought), October 23, 1945
SRM 85b - Aluminum Alloy (Wrought), May 9, 1957
SRM 86 - Aluminum-Base Sand-Casting Alloy, Provisional, April 2, 1937
SRM 86a - Aluminum-Base Sand Casting Alloy, Provisional, March 30, 1939
SRM 86b - Aluminum Alloy (Casting), July 24, 1943
SRM 86c - Aluminum Alloy (Casting), December 24, 1948
SRM 87 - Aluminum-Silicon Alloy, February 28, 1949
SRM 88 - Dolomite, May 1, 1928
SRM 88a - Dolomitic Limestone, July 22, 1982
SRM 91 - Opal Glass Powder, October 28, 1982
SRM 93 - Borosilicate Glass, July 10, 1933
SRM 94 - Zinc-Base Die-Casting Alloy, Provisional, April 1, 1930
SRM 94a - Zinc-Base Alloy (Die-Casting), April 7, 1948
SRM 94b - Zinc-Base Alloy (Die-Casting), Provisional, March 1, 1954
SRM 95 - Zinc-Base Die-Casting Alloy, Provisional, April 1, 1930
SRM 96 - Zinc-Base Die-Casting Alloy, Provisional, April 1, 1930
SRM 97 - Flint Clay, August 31, 1931
SRM 97a - Flint Clay, October 8, 1969
SRM 98 - Plastic Clay, August 31, 1931
SRM 98a - Plastic Clay, October 8, 1969
SRM 99 - Soda Feldspar, March 28, 1931
SRM 100 - Manganese Rail Steel, June 10, 1931
SRM 100a - Manganese Rail Steel, May 12, 1948
SRM 101 - 18 Chromium-8 Nickel Steel, April 1, 1933
SRM 101a - 18 Chromium-8 Nickel Steel, November 24, 1939
SRM 101b - 18 Chromium-8 Nickel Steel, May 10, 1944
SRM 101c - 18 Chromium-9 Nickel Steel, March 29, 1948
SMR 101d - 18 Chromium-9 Nickel Steel, March 31, 1955
SRM 101e - 18 Chromium-9 Nickel Steel, March 24, 1961
SRM 101f - 18Cr-10Ni Steel (AISI 304L), May 19, 1970
SRM 102 - Silica Brick, April 29, 1932
SRM 103 - Chrome Refractory, May 10, 1934
SRM 103a - Chrome Refractory, September 28, 1962
SRM 104 - Burned Magnesite, July 10, 1933
SRM 105 - LA Steel, High S, August 10, 1981
SRM 106 - Chromium-Molybdenum-Aluminum Steel, April 19, 1933
SRM 106a - Chromium-Molybdenum-Aluminum Steel, August 29, 1944
SRM 107 - Nickel Chromium-Molybdenum Cast Iron, May 10, 1933
SRM 107a - Nickel Chromium-Molybdenum Cast Iron, September 28, 1950
SRM 107b - Nickel Chromium-Molybdenum Cast Iron, November 1, 1962
SRM 108 - Spelter, Provisional, May 24, 1928
SRM 109 - Spelter, Provisional, May 24, 1928
SRM 110 - Spelter, Provisional, May 24, 1938
SRM 111 - Nickel-Molybdenum Steel, May 25, 1934
SRM 111a - Nickel-Molybdenum Steel, November 19, 1943
SRM 111b - Nickel-Molybdenum Steel, October 17, 1941
SRM 112 - Silicon Carbide, May 26, 1937
SRM 113 - Zinc Ore, Provisional, September 25, 1941
SRM 113a - Zinc Concentrates, December 29, 1975
SRM 114 - Portland Cement, Provisional, April 11, 1934
SRM 114b - Portland Cement, Provisional, June 15, 1937
SRM 114c - Portland Cement, Provisional, August 10, 1938
SRM 114d - Portland Cement, Provisional, March 12, 1941
SRM 114e - Portland Cement, Provisional, December 5, 1944
SRM 114f - Portland Cement, July 1, 1947
SRM 114g - Portland Cement, March 26, 1951
SRM 114h - Portland Cement, March 16, 1953
SRM 114i - Portland Cement, May 5, 1956
SRM 114j - Portland Cement, January 25, 1961
SRM 114k - Portland Cement, November 9, 1965
SRM 114l - Portland Cement, August 25, 1967
SRM 114m - Portland Cement, Provisional, February 13, 1973
SRM 114n - Portland Cement Fineness Standard, February 26, 1982
SRM 114p - Portland Cement Fineness Standard, June 17 2003
SRM 115 - Copper-Nickel-Chromium Cast Iron Steel, November 6, 1935
SRM 116 - Ferrotitanium, August 16, 1939
SRM 116a - Ferrotitanium (Low Carbon), March 10, 1947
SRM 117 - Ferrotitanium (High Carbon), August 16, 1939
SRM 118 - Alumel, August 16, 1935
SRM 119 - Chromel P, August 16, 1935
SRM 120 - Phosphate Rock (Florida Land Pebble), April 4, 1939
SRM 120a - Phosphate Rock (Florida), Provisional, July 25, 1961
SRM 120b - Phosphate Rock (Florida), July 31, 1972
SRM 121 - 18-Chromium-8 Nickel Steel, January 10, 1939
SRM 121a - 18 Chromium-10 Nickel Steel, August 4, 1944
SRM 121b - 18-Chromium-11 Nickel Steel, November 3, 1954
SRM 121c - 18 Cr-10 Ni, Provisional, November 12, 1965
SRM 122 - Cast Iron (Car-Wheel), March 2, 1938
SRM 122a - Cast Iron (Car-Wheel), July 9, 1945
SRM 122b - Cast Iron (Car-Wheel), January 20, 1950
SRM 122c - Cast Iron (Car-Wheel), March 31, 1955
SRM 122d - Cast Iron (Car-Wheel), November 29, 1957
SRM 122e - Cast Iron Car Wheel, November 6, 1969
SRM 122f - Cast Iron Car Wheel, October 1, 1975
SRM 122g - Cast Iron Car Wheel, April 2, 1979
SRM 122h - Cast Iron Car Wheel, April 28, 1983
SRM 123 - 18 Chromium-11 Nickel Steel, March 25, 1939
SRM 123a - 18 Chromium-11 Nickel Steel (Columbium Bearing), Provisional, June 3, 1943
SRM 123b - Niobium-Tantalum Stabilized Stainless Steel, Provisional, March 9, 1953
SRM 124 - Ounce Metal, June 1, 1939
SRM 124a - Ounce Metal, October 7, 1944
SRM 124b - Ounce Metal, November 25, 1947
SRM 124c - Ounce Metal, April 30, 1954
SRM 124d - Ounce Metal, November 6, 1970
SRM 125 - Steel (High-Silicon), December 28, 1938
SRM 125a - High-Silicon Steel , Provisional, September 17, 1954
SRM 126 - High-Nickel Steel (Furnished by Carpenter Steel Company), December 7, 1939
SRM 126a - High-Nickel Steel, April 22, 1946
SRM 126b - High-Nickel Steel, August 20, 1957
SRM 127 - Solder, Provisional, June 12, 1942
SRM 127a - Solder, August 20, 1951
SRM 128 - Soda-Lime Glass, Provisional, April 27, 1939
SRM 129 - High-Sulfur Steel, Provisional, June 1, 1939
SRM 129a - Bessemer Steel, 0.1% Carbon, May 10, 1945
SRM 129b - Bessemer Steel, 0.1 % Carbon, December 30, 1957
SRM 130 - Steel Lead-Bearing, January 11, 1940
SRM 130a - Steel Lead-Bearing, September 10, 1957
SRM 131 - Low-Carbon Silicon Steel, May 25, 1949
SRM 131a - Low-Carbon Silicon Steel, March 10, 1965
SRM 131b - Low-Carbon Silicon Steel, Provisional, December 6, 1968
SRM 131b - Low-Carbon Silicon Steel, July 16, 1969
SRM 131c - Low-Carbon Silicon Steel, June 2, 1977
SRM 131d - Low Carbon Silicon Steel, December 17, 1986
SRM 131e - Low Carbon Silicon Steel, November 13, 1991
SRM 131f - Low Carbon Silicon Steel, May 20, 1997
SRM 132 - Molybdenum-Tungsten-Chromium-Vanadium Steel, September 24, 1942
SRM 132a - Molybdenum-Tungsten-Chromium-Vanadium Steel, March 1, 1955
SRM 133 - Chromium-Molybdenum Steel, April 18, 1944
SRM 133a - Chromium-Molybdenum Steel, June 8, 1956
SRM 134 - Molybdenum-Tungsten-Chromium-Vanadium Steel, February 2, 1944
SRM 135 - Chromium-Molybdenum Steel, November 30, 1943
SRM 136 - Potassium Dichromate (Oxidimetric Standard), May 11, 1948
SRM 136a - Potassium Dichromate (Oxidimetric Standard), Provisional, July 16, 1953
SRM 136b - Potassium Dichromate (Oxidimetric Standard), Provisional, June 30, 1961
SRM 136c - Potassium Dichromate (Oxidimetric Standard), Provisional, March 24, 1970
SRM 136d - Potassium Dichromate (Oxidimetric Standard), August 1, 1981
SRM 136e - Potassium Dichromate (Oxidimetric Standard), April 18, 2000
SRM 137 - Tin Ore (Bolivian Concentrate), Provisional, November 16, 1942
SRM 138 - Tin Ore Netherlands East Indies, Provisional, February 17, 1943
SRM 139 - Chromium-Nickel-Molybdenum Steel, August 14, 1946
SRM 139a - Chromium-Nickel-Molybdenum Steel, December 17, 1959
SRM 140 - Benzoic Acid, Provisional, May 13, 1942
SRM 140a - Benzoic Acid, December 10, 1957
SRM 140b - Benzoic Acid, November 27, 1961
SRM 141 - Microchemical Standard Acetanilide, May 13, 1942
SRM 141a - Microchemical Standard Acetanilide, Provisional, March 1, 1962
SRM 141b - Acetanilide, November 23, 1965
SRM 141c - Acetanilide, September 27, 1976
SRM 142 - Anisic Acid, Provisional, November 23, 1942
SRM 142 - Anisic Acid, July 9, 1969
SRM 143 - Cystine, Provisional, November 23, 1942
SRM 143a - Cystine, Provisional, December 12, 1957
SRM 143b - Cystine, Provisional, May 3, 1965
SRM 143b - Cystine, July 9, 1969
SRM 143c - Cystine, November 5, 1991
SRM 144 - 2-Chlorobenzoic Acid, Provisional, August 12, 1946
SRM 145 - 2-Idobenzoic Acid, Provisional, August 12, 1946
SRM 146 - Trialphanaphthyl Phosphate, Provisional, August 12, 1946
SRM 147 - Triphenyl Phosphate, July 9, 1969
SRM 148 - Nicotinic Acid, Provisional, September 1, 1967
SRM 148 - Nicotinic Acid, Provisional, December 22, 1970
SRM 149 - Fluorobenzoic Acid, May 3, 1968
SRM 151 - Boron Steel, Provisional, November 11, 1943
SRM 152 - Basic Open-Hearth Steel, February 27, 1947
SRM 153 - Cobalt-Molybdenum Tungsten Steel, October 17, 1945
SRM 153a - Cobalt-Molybdenum Tungsten Steel, Provisional, September 18, 1958
SRM 153a - Cobalt-Molybdenum Tungsten Steel, January 5, 1960
SRM 154 - Titanium Oxide, Provisional, February 18, 1943
SRM 154a - Titanium Oxide, Provisional, April 25, 1966
SRM 154b - Titanium Oxide, May 16, 1973
SRM 154b - Titanium Oxide, September 11, 1973
SRM 156 - Chromium-Nickel-Molybdenum Steel, April 20, 1946
SRM 157 - Copper-Nickel-Zinc Alloy, May 10, 1948
SRM 157a - Copper-Nickel-Zinc Alloy, October 16, 1958
SRM 158 - Silicon Bronze, September 12, 1951
SRM 159 - Chromium-Molybdenum-Silver Steel, October 15, 1948
SRM 160 - 19 Chromium 9 Nickel 3 Molybdenum Steel, March 2, 1949
SRM 160a - 19 Chromium 14 Nickel 3 Molybdenum Steel, Provisional, November 12, 1957
SRM 160a - 19 Chromium-14 Nickel 3 Molybdenum Steel, March 2, 1959
SRM 161 - Nickel Chromium Casting Alloy (64 Ni-17 Cr), January 14, 1953
SRM 162 - Nickel Copper Alloy (66 Ni-29 Cu), March 21, 1949
SRM 162a - Nickel-Copper Alloy (64 Ni-31 Cu), December 18, 1958
SRM 164 - Manganese - Aluminum Bronze, September 7, 1951
SRM 164a - Aluminum Bronze, Provisional, December 4, 1958
SRM 165 - Glass Sand, Provisional, January 26, 1948
SRM 166 - Low-Carbon Stainless Steel, March 16, 1950
SRM 166a - Low-Carbon Stainless Steel, Provisional, November 18, 1955
SRM 166b - Low-Carbon Stainless Steel, Provisional, February 1, 1961
SRM 166b - Low-Carbon Stainless Steel, June 7, 1961
SRM 167 - Heat Resisting Alloy, Provisional, October 18, 1954
SRM 168 - Heat Resisting Alloy, Provisional, January 12, 1956
SRM 169 - Electrical-Heating Alloy (77 Ni-20 Cr), October 26, 1953
SRM 170 - Basic Open-Hearth Steel, 0.04% Carbon, September 25, 1953
SRM 170a - Basic Open-Hearth Steel, 0.05% Carbon, Provisional, January 26, 1959
SRM 170a - Basic Open-Hearth Steel, 0.05% Carbon, November 19, 1959
SRM 172 - Ferroboron, Provisional, October 23, 1958
SRM 172 - Ferroboron, July 7, 1959
SRM 173 - Titanium Base Alloy (6AL-4V), Provisional, April 15, 1957
SRM 173a - Titanium Base Alloy (6AL-4V), Provisional, April 25, 1966
SRM 173b - Titanium Base Alloy (6AL-4V), December 17, 1984
SRM 174 - Titanium Base Alloy (4Al-4Mn), Provisional, July 15, 1957
SRM 176 - Titanium Base Alloy (5 Al 2.5 Sn), October 1, 1981
SRM 177 - Portland Cement, November 25, 1957
SRM 184 - Leaded Tin Bronze, February 26, 1973
SRM 185a - Potassium Hydrogen Phthalate, September 19, 1952
SRM 185b - Potassium Hydrogen Phthalate, August 1, 1955
SRM 185c - Potassium Hydrogen Phthalate, October 1, 1958
SRM 185d - Potassium Hydrogen Phthalate, April 24, 1967
SRM 185e - Potassium Hydrogen Phthalate, December 5, 1972
SRM 185f - Potassium Hydrogen Phthalate, January 31, 1984
SRM 185g - Potassium Hydrogen Phthalate, February 13, 1991
SRM 186-I-a - Potassium Dihydrate Phosphate, November 13, 1945
SRM 186-II-a - Disodium Hydrogen Phosphate, November 13, 1945

SRM 186-I-b - Potassium Dihydrate Phosphate, August 5, 1965
SRM 186-II-b - Disodium Hydrogen Phosphate, August 5, 1965
SRM 186-I-c - Potassium Dihydrate Phosphate, September 1, 1970
SRM 186-II-c - Disodium Hydrogen Phosphate, September 1, 1970

SRM 186-I-d - Potassium Dihydrate Phosphate, March 11, 1988
SRM 186-II-d - Disodium Hydrogen Phosphate, March 11, 1988

SRM 186-I-e - Potassium Dihydrate Phosphate, February 12, 1991
SRM 186-II-e - Disodium Hydrogen Phosphate, February 12, 1991

SRM 186-I-f - Potassium Dihydrate Phosphate, November 15, 2001
SRM 186-II-f - Disodium Hydrogen Phosphate, November 15, 2001
SRM 186-II-g - Disodium Hydrogen Phosphate, May 23, 2003
SRM 186-I-g - Disodium Hydrogen Phosphate, May 23, 2003
SRM 187 - Borax (pH Standard), January 13, 1947
SRM 187a - Borax (pH Standard) Purity, January 5, 1960
SRM 187b - Borax, September 9, 1970
SRM 187c - Sodium Tetraborate Decahydrate (Borax) pH Standard, May 24, 1993
SRM 187d - Sodium Tetraborate Decahydrate (Borax) pH Standard, January 6, 2004
SRM 189 - Potassium Tetroxalate Purity, January 6, 1954
SRM 189 - Potassium Tetroxalate Purity, January 10, 1964
SRM 189a - Potassium Tetroxalate Purity, February 13, 1991
SRM 191 - Sodium Bicarbonate, July 15, 1968
SRM 191a - Sodium Bicarbonate, July 2, 1993
SRM 191b - Sodium Bicarbonate, May 5, 1998
SRM 191-I-c - Sodium Bicaronate, December 1, 2003
SRM 192 - Sodium Carbonate, July 15, 1968
SRM 192a - Sodium Carbonate, July 2, 1993
SRM 191-II-c - Sodium Carbonate, December 1, 2003
SRM 200 - Potassium Dihydrogen Phosphate, October 20, 1995
SRM 211a - Toluene, December 1, 1944
SRM 211c - Toluene, September 14, 1984
SRM 217 - 2,2,4-Trimethylpentane Material
SRM 217a - 2,2,4-Trimethylpentane Material, March 1, 1957
SRM 217b - 2,2,4-Trimethylpentane Material, September 28, 1962
SRM 217c - 2,2,4-Trimethylpentane Material, Septmber 14, 1984
SRM 218 - Methycyclohexane
SRM 218a - Methycyclohexane Material
SRM 276 - Tungsten Carbide, April 25, 1974
SRM 276a - Tungsten Carbide, May 30, 1980
SRM 276b - Tungsten Carbide, June 2, 1994
SRM 278 - Obsidian Rock, August 19, 1981
SRM 291 - Cr-Mo Steel (ASTM A-213), Preprint, March 27, 1975
SRM 300 - Toluidine-Red-Toner, May 6, 1944
SRM 301 - Yellow Ocher, August 17, 1944
SRM 302 - Raw Sienna, September 8, 1944
SRM 303 - Burnt Sienna, October 10, 1944
SRM 304 - Raw Amber, October 10, 1944
SRM 305 - Burnt Amber, October 11, 1944
SRM 306 - Venetian Red, October 25, 1944
SRM 307 - Metallic Brown, November 3, 1944
SRM 308 - Indian Red, November 4, 1944
SRM 309 - Mineral Red, November 3, 1944
SRM 310 - Bright Red Oxide, November 4, 1944
SRM 311 - Carbon Black (High Color), November 7, 1944
SRM 312 - Carbon Black (All-Purpose), November 7, 1944
SRM 313 - Black Iron Oxide, August 28, 1945
SRM 314 - Yellow Iron Oxide, Light-Lemon, August 28, 1945
SRM 315 - Yellow Iron Oxide, Lemon, August 28, 1945
SRM 316 - Yellow Iron Oxide, Orange, August 28, 1945
SRM 317 - Yellow Iron Oxide, Dark Orange, August 28, 1945
SRM 318 - Lampblack, August 28, 1945
SRM 319 - Primrose Chrome Yellow, November 6, 1945

SRM 320 - Lemon Chrome Yellow, November 6, 1945
SRM 321 - Medium Chrome Yellow, November 6, 1945
SRM 322 - Light Chrome Orange, November 6, 1945
SRM 323 - Dark Chrome Orange, November 6, 1945
SRM 324 - Ultramarine Blue, March 15, 1946
SRM 325 - Iron-Blue, March 15, 1946
SRM 326 - Light Chrome Green
SRM 327 - Medium Chrome Green, June 24, 1946
SRM 328 - Dark Chrome Green, June 24, 1946
SRM 332 - Chopper Concentrate, June 26, 1977
SRM 333 - Molybdenum Concentrate, January 20, 1977
SRM 335 - Basic Open Hearth Steel, 0.1% Carbon, April 7, 1966
SRM 336 - Cr-V Steel, 0.6 C (Carbon Only), June 19, 1973
SRM 336 - Cr-V Steel, 0.6 C (Carbon Only), January 26, 1979
SRM 337 - Basic Open-Hearth Steel, 1.1% Carbon, August 16, 1966
SRM 337a - Basic Open-Hearth Steel, 1% Carbon, April 8, 1985
SRM 340 - Ferroniobium, November 9, 1970
SRM 341 - Ductile Iron, April 6, 1961
SRM 342 - Nodular Cast Iron, Provisional, June 6, 1961
SRM 342 - Nodular Cast Iron, January 5, 1962
SRM 343 - Stainless Steel, Provisional, February 28, 1962
SRM 343 - Stainless Steel, May 28, 1962
SRM 345 - 16-Chromium-4 Nickel Steel, Provisional, January 17, 1963
SRM 345 - 16-Chromium-4 Nickel Steel, January 23, 1964
SRM 346 - Valve Steel, July 14, 1965
SRM 348 - High Temperature Alloy, October 1, 1981
SRM 349 - Waspaloy, September 2, 1981
SRM 350 - Benzoic Acid, April 15, 1958
SRM 350a - Benzoic Acid, March 14, 1995
SRM 352 - Unalloyed Titanium for Hydrogen (0.003%), August 7, 1961
SRM 352a - Unalloyed Titanium for Hydrogen (0.003%), June 16, 1980
SRM 352b - Unalloyed Titanium for Hydrogen (0.003%), August 22, 1983
SRM 352c - Unalloyed Titanium for Hydrogen (0.003%), June 14, 1990
SRM 353 - Unalloyed Titanium for Hydrogen (0.01 %), August 7, 1961
SRM 354 - Unalloyed Titanium for Hydrogen (0.02%), August 7, 1961
SRM 355 - Oxygen and Titanium Base Materials (By Vacuum Inert Gas Fusion Methods), September 8, 1966
SRM 356 - Oxygen and Titanium Base Materials (By Vacuum Inert Gas Fusion Methods), September 8, 1966
SRM 357 - Gastrometric Standard for Unalloyed Zirconium, June 16, 1980
SRM 358 - Gastometric Standard for Unalloyed Zirconium, June 16, 1980
SRM 360 - Zircaloy-2, November 19, 1962
SRM 360a - Zircaloy-2, June 30, 1967
SRM 362 - LA Steel (AISI 94B17) (modified), June 1, 1989
SRM 365 - Electrolytic Iron, June 12, 1989
SRM 367 - Stainless Steel (AISI 446), March 15, 1995
SRM 385b - Natural Rubber, August 15, 1967
SRM 386f - Styrene Butadiene Rubber (Type 1500), October 15, 1965
SRM 386g - Styrene Butadiene Rubber (Type 1500), October 10, 1969
SRM 386h - Styrene Butadiene Rubber (Type 1500), March 10, 1975
SRM 386j - Styrene Butadiene Rubber (Type 1500), January 2, 1985
SRM 386k - Styrene Butadiene Rubber (Type 1500), October 5, 1992
SRM 388c - Butyl Rubber, March 1, 1965
SRM 388d - Butyl Rubber, April 17, 1967
SRM 388e - Butyl Rubber, February 13, 1969
SRM 388f - Butyl Rubber, April 7, 1972
SRM 388i - Butyl Rubber, January 2, 1978
SRM 388j - Butyl Rubber
SRM 388k - Isobutylene - Isoprene (Butyl) Rubber, March 19, 1980
SRM 388l - Isobutylene - Isoprene (Butyl) Rubber, December 3, 1982
SRM 388m - Isobutylene - Isoprene (Butyl) Rubber, September 10, 1985
SRM 388n - Isobutylene - Isoprene (Butyl) Rubber, March 23, 1987
SRM 388p - Isobutylene - Isoprene (Butyl) Rubber, December 31, 1989
SRM 389 - Styrene Butadiene Rubber, June 2, 1966
SRM 390 - Butyl Rubber (Standard for Mooney Viscosity), April 12, 1967
SRM 391 - Acrylonitrile-Butadiene Rubber, February 14, 1969
SRM 393 - Unalloyed Copper (CU 0), September 16, 1980
SRM 394 - Unalloyed Copper (CU 1), April 10, 1986
SRM 401 to 430 - Spectrographic Steel Standards, May 5, 1965
SRM 403a, 407a, 409a, 420a - Spectrographic Steel Standards, Provisional, July 29, 1953
SRM 405a - Spectrographic Standard Samples Medium Manganese Steel, November 15, 1951
SRM 409a - Spectrographic Steel Standard, Provisional, August 15, 1952
SRM 425 - Spectrographic Boron Steel Standards, August 2, 1951
SRM 426 - Spectrographic Boron Steel Standards, August 2, 1951
SRM 427 - Spectrographic Boron Steel Standards, August 2, 1951
SRM 428 - Spectrographic Boron Steel Standards, August 2, 1951
SRM 429 - Spectrographic Boron Steel Standards, August 2, 1951
SRM 430 - Spectrographic Boron Steel Standards, August 2, 1951
SRM 436 to 441 - Spectrographic Tool Steel Standards, September 22, 1959
SRM 442 - Spectrographic Stainless Steel Standards (Group I), October 25, 1965
SRM 443 - Spectrographic Stainless Steel Standards (Group I), October 25, 1965
SRM 444 - Spectrographic Stainless Steel Standards (Group I), October 25, 1965
SRM 445 - Spectrographic Stainless Steel Standards (Group II), January 19, 1966
SRM 446 - Spectrographic Stainless Steel Standards (Group II), January 19, 1966
SRM 447 - Spectrographic Stainless Steel Standards (Group II), January 19, 1966
SRM 448 - Spectrographic Stainless Steel Standards (Group II), January 19, 1966
SRM 448 - Spectrographic Stainless Steel Standards (Group II), October 6, 1983
SRM 449 - Spectrographic Stainless Steel Standards (Group II), January 19, 1966
SRM 450 - Spectrographic Stainless Steel Standards (Group II), January 19, 1966
SRM 461- Spectrographic Ingot Iron and Low-Alloy Steel Standards, August 1, 1981
SRM 462 - Spectrographic Ingot Iron and Low-Alloy Steel Standards, August 1, 1981
SRM 463 - Spectrographic Ingot Iron and Low-Alloy Steel Standards, August 1, 1981
SRM 464 - Spectrographic Ingot Iron and Low-Alloy Steel Standards, August 1, 1981
SRM 465 - Spectrographic Ingot Iron and Low-Alloy Steel Standards, August 1, 1981
SRM 466 - Spectrographic Ingot Iron and Low-Alloy Steel Standards, August 1, 1981
SRM 467 - Spectrographic Ingot Iron and Low-Alloy Steel Standards, August 1, 1981
SRM 468 - Spectrographic Ingot Iron and Low-Alloy Steel Standards, August 1, 1981
SRM 469 - Scanning Electronic Microscope Resolution Test Specimen (Aluminum Tungsten Dendrites), January 6, 1981
SRM 470 - Mineral Glasses for Microanalysis, October 30, 1981
SRM 471 - Portland Cement, June 3, 1947
SRM 473 - Optical Microscope Linewidth Measurement Standard, January 30, 1997
SRM 474 - Optical Microscope Linewidth Measurement Standard, August 27, 1981
SRM 475 - Optical Microscope Linewidth Measurement Standard, April 21, 1981

SRM 475 - Optical Microscope Linewidth Measurement Standard, January 29, 1992
SRM 476 - Optical Microscope Linewidth Measurement Standard, September 7, 1990
SRM 477 - Glass Flourescence Source, February 23, 1983
SRM 478 - Microprobe Standard Cartridge - Brass, February 28, 1974
SRM 479 - Fe-Cr-Ni Alloy Microprobe Standard, October 16, 1972
SRM 479a - Fe-Cr-Ni Alloy Microprobe Standard, November 1, 1980
SRM 483 - Fe-3Si Alloy Microprobe Standard, June 11, 1971
SRM 484 - Scanning Electron Microscope Magnification Standard (A Stage Micrometer Scale), February 1, 1977
SRM 484a - Scanning Electron Microscope Magnification Standard (A Stage Micrometer Scale), December 5, 1978
SRM 484b - Scanning Electron Microscope Magnification Standard (A Stage Micrometer Scale), November 26, 1980
SRM 484d - Scanning Electron Microscope Magnification Standard, July 22, 1985
SRM 484e - Scanning Electron Microscope Magnification Standard (A Stage Micrometer Scale), August 30, 1988
SRM 484f - Scanning Electron Microscope Magnification Standard (A Stage Micrometer Scale), March 24, 1992
SRM 484g - Scanning Electron Microscope Magnification Standard (A Stage Micrometer Scale), September 10, 1996
SRM 485 - Austenite in Ferrite, August 23, 1972
SRM 486 - 15 % Austenite in Ferrite, March 6, 1981
SRM 487 - 30 % Austenite in Ferrite, May 14, 1982
SRM 488 - 2 1/2 % Austenite in Ferrite, April 12, 1993
SRM 493 - Speroidized Iron Carbide (Fe3C) in Ferrite, March 7, 1985
SRM 592 - Hydrocarbon Blend Number 1, April 1, 1961
SRM 593 - Hydrocarbon Blend Number 2, April 1, 1961
SRM 594 - Hydrocarbon Blend Number 3, April 1, 1961
SRM 595 - Hydrocarbon Blend Number 4, April 1, 1961
SRM 596 - Hydrocarbon Blend Number 5, April 1, 1961
SRM 597 - Hydrocarbon Blend Number 6, April 1, 1961
SRM 598 - Hydrocarbon Blend Number 7, April 1, 1961
SRM 599 - Hydrocarbon Blend Number 8, April 1, 1961
SRM 633 - 639 Portland Cements, February 1 ,1975
SRM 633 -Portland Cement (Cap Color is Red), December 15, 1983
SRM 634 - Portland Cement (Cap Color is Gold, December 15, 1983
SRM 635 - Portland Cement (Cap Color is Blue), December 15, 1983
SRM 636 - Portland Cement (Cap Color is Yellow), February 1 ,1975
SRM 637 - Portland Cement Cap Color is Pink, December 15, 1983
SRM 638 - Portland Cement (Cap Color is Green), February 1 ,1975
SRM 639 - Portland Cement (Cap Color is Clear), December 15, 1983
SRM 640 - Silicon Powder Lattice Parameter (X-Ray Diffraction Standard), August 7, 1974
SRM 640a - Silicon Powder 20/d-Spacing Standard for X-Ray Diffraction, February 19, 1982
SRM 640b - Silicon Powder 20/d-Spacing Standard for X-Ray Diffraction, January 14, 1987
SRM 644 - Spectroscopic Titanium - Base Standards, January 26, 1960
SRM 645 - Spectroscopic Titanium - Base Standards, January 26, 1960
SRM 646 - Spectroscopic Titanium - Base Standards, January 26, 1960
SRM 652 - Unalloyed Titanium C, November 18, 1985
SRM 653 - Titanium Alloy, 6 Aluminum - 4 Vanadium, Provisional, May 14, 1959
SRM 654 - Titanium Alloy, 6 Aluminum - 4 Vanadium, Provisional, May 14, 1959
SRM 654a - Titanium Alloy, 6 Aluminum - 4 Vanadium, October 15, 1981
SRM 655 - Titanium Alloy, 6 Aluminum - 4 Vanadium, Provisional, May 14, 1959
SRM 660 Line Profile, LaB6 (XRD), June 1, 1989
SRM 662 - AISI 94B17 Steel (Modified), September 15, 1981
SRM 664 - LA Steel, High Carbon, October 1, 1981
SRM 674 - X-Ray Powder Diffraction Intensity Set, June 1, 1983
SRM 674a -X-Ray Powder Diffraction Intensity Set, January 15, 1989
SRM 680 - High-Purity and Doped Platinum, Provisional, December 28, 1967
SRM 680a - High-Purity Platinum, July 19, 1995
SRM 680a-L2 - High Purity Platinum, July 19, 1995
SRM 681 - High-Purity and Doped Platinum, Provisional, December 28, 1967
SRM 682 - High-Purity Zinc, July 9, 1968
SRM 683 - Zinc Metal, Provisional, July 9, 1968
SRM 683 - Zinc Metal, October 1, 1981
SRM 685 - High-Purity Gold, October 1, 1981
SRM 689 - Ferrochromium Silicon, February 24, 1982
SRM 690 - Ire Ore Concentrate (Canada), October 24, 1978
SRM 691 - Reduced Iron Oxide, April 12, 1982
SRM 692 - Ire Ore, (Labrador), October 24, 1978
SRM 693 - Ire Ore, (Nimba), October 24, 1978
SRM 694 - Western Phosphate Rock, June 21, 1984
SRM 696 - Bauxite (Surinam), August 24, 1979
SRM 698 - Bauxite (Jamaican), August 24, 1979
SRM 699 - Alumina (Reduction Grade), October 17, 2002
SRM 700 - Standard Light Sensitive, June 1, 1963
SRM 701b - Booklet of Faded Strips of Light-Sensitive Paper, April 24, 1967
SRM 701c - Booklet of Faded Strips of Light-Sensitive Paper, October 1, 1971
SRM 701d - Booklet of Fades Strips of Light-Sensitive Paper, January 15, 1977
SRM 702 - Light-Sensitive Plastic Chip 0.124 inch, November 1, 1966
SRM 703 - Light Sensitive Plastic Chip 0.060 inch, November 1, 1966
SRM 704 - Internal Tearing Resistance of Paper, November 1, 1963
SRM 704a - Internal Tearing Resistance of Paper
SRM 705 - Polystyrene (Narrow Molecular Weight Distribution), February 1, 1963
SRM 705 - Polystyrene (Narrow Molecular Weight Distribution), November 6, 1969
SRM 706 - Polystyrene (Broad Molecular Weight Distribution), April 17, 1995
SRM 707 - Water Vapor Permeance, January 17, 1972
SRM 708 - Lead Silica Glass and Borosilicate Glass, September 15, 1973
SRM 710 - Soda-Lime-Silica Glass, June 29, 1962
SRM 709 - Extra Dense Lead Glass, Preprint, December 13, 1972
SRM 711 - Lead Silica Glass, July 1, 1964
SRM 712, 713 and 714 - Softening, Annealing and Strain Points, October 19, 1966
SRM 717a - Borosilicate Glass, August 7, 1995
SRM 718 - Polycrystalline Alumina Elasticity Standard, April 28, 1972
SRM 722 - Metals in Heavy Oil
SRM 723 - 2 Amino-2-(hydroxymethyl)-1,3-propanediol{tris(Hydroxymethyl)aminomethane] (HOCH2)3CNH2 Basimetric, July 14, 1970
SRM 723a - 2 Amino-2-(hydroxymethyl)-1,3-propanediol{tris(Hydroxymethyl)aminomethane] (HOCH2)3CNH2 Basimetric, April 20, 1981
SRM 723b - 2-Amino-2-(hydroxymethyl)-1,3-propanediol [tris(Hydroxymethyl)aminomethane] (HOCH2)3CNH2 Basimetric, April 12, 1993
SRM 723c - 2-Amino-2-(hydroxymethyl)-1,3-propanediol [tris(Hydroxymethyl)aminomethane] (HOCH2)3CNH2 Basimetric,January 30, 1998
SRM 724 - Tris(hydroxymethyl) aminomethane, (HOCHN2)3CNH2 for Solution Calorimetry, April 14, 1972
SRM 724a - Tris(hydroxymethyl) aminomethane, (HOCHN2)3CNH2 for Solution Calorimetry, September 24, 1973
SRM 725 - Isomer Shift of Iron Compounds, April 6, 1966
SRM 727 - Rubidium Chloride Intermediate Purity, Provisional, January 30, 1967
SRM 728 - Intermediate Purity Zinc, October 1, 1981
SRM 728 - Intermediate Purity Zinc, November 16, 1987
SRM 730 - Thermal Conductivity - Tungsten, May 18, 1976
SRM 731 - Borosilicate Glass - Thermal Expanison, July 31, 1972
SRM 732 - Single Crystal Sapphire - Thermal Expansion, October 3, 1977
SRM 733 - Silver-28 Atomic Percent Gold Thermocouple Wire, December 30, 1971
SRM 734 - Thermal Conductivity - Electrolytic Iron, April 29, 1975
SRM 735 - Thermal Conductivity Austenitic Stainless Steel, March 5, 1975
SRM 736 - Copper Thermal Expansion, November 19, 1969
SRM 736L1 - Copper Thermal Expansion, October 7, 1990
SRM 737 - Tungsten - Thermal Expansion, May 19, 1976
SRM 738 - Stainless Steel (AISI) Thermal Expansion, November 17, 1986

SRM 739 - Fused-Silica Thermal Expansion, December 27, 1991
SRM 739L1 - Thermal Expansion
SRM 739L2 - Thermal Expansion
SRM 739L3 - Thermal Expansion
SRM 740 - Zinc Freezing Point on the Internal Practical Temperature Scale (1948) 419.58 °C, August 19, 1966
SRM 740 - Zinc Freezing Point on the Internal Practical Temperature Scale (1968) 419.58 °C, February 19, 1970
SRM 741 - Tin (Primary Freezing Point Standard 231.928 °C), June 26, 1990
SRM 742 - Aluminum Oxide Pyrometric Standard, June 5, 1970
SRM 743 - Mercury, April 22, 1976
SRM 745 - Gold-Vapor Pressure, August 27, 1990
SRM 746 - Cadmium-Vapor Pressure, August 11, 1970
SRM 748 - Silver-Vapor Pressure, February 1, 1991
SRM 755 - Quartz (SiO2), Provisional, November 6, 1969
SRM 756 - Potassium Nitrate, Provisional, November 6, 1969
SRM 758 - DTA - Temperature Standards (125 - 435 °C), June 11, 1971
SRM 759 - DTA - Temperature Standards (295 - 672 °C), June 11, 1971
SRM 760 - DTA Temperature Standards (570 - 940 °C), June 11, 1971
SRM 761 - ICTA Standard
SRM 763 - Magnetic Gram Susceptibility - Aluminum, April 5, 1973
SRM 764 - Magnetic Gram Susceptibility - Platinum, April 5, 1973
SRM 765 - Magnetic Gram Susceptibility - Palladium, April 5, 1973
SRM 766 - Magnetic Gram Susceptibility - Manganese Fluoride, April 5, 1973
SRM 767 - Superconductive Thermometric Fixed Point Device, June 5, 1974
SRM 767a - Superconductive Thermometric Fixed Point Device, February 14, 1992
SRM 768 - Superconductive Thermometric Fixed Point Device (0.015 K - 0.208 K), December 13, 1978
SRM 769 - Electrical Residual Resistivity Ratio, November 15, 1982
SRM 772 - Magnetic Moment Standard Nickel Sphere, October 18, 1978
SRM 772 - Magnetic Moment Standard Nickel Sphere, August 19, 1999
SRM 772 - Magnetic Moment Standard Nickel Sphere, September 3, 1999
SRM 781 - Molybdenum - Heat Capacity, April 1, 1977
SRM 785 - Radium Content of Standard Rock Sample (Dunite)
SRM 787 - Radium Content of Standard Rock Sample (Berea Sandstone)
SRM 789 - Radium Content of Standard Rock Sample Chelmsford Granite
SRM 791 - Radium Content of Standard Rock Sample (Graniteville Granite)
SRM 797 - Electrical Resistivity - Electrolytic Iron, April 29, 1975
SRM 798 - Electrical Resistivity - Austenitic Stainless Steel, March 4, 1975
SRM 799 - Electrical Resistivity - Tungsten, February 27, 1976
SRM 801 to 830 - Spectrographic Steel Standards, May 5, 1965
SRM 803a, 807a, 809a, 820a - Spectrographic Steel Standards, Provisional, July 23, 1953
SRM 805a - Spectrographic Standard Samples Medium Maganese Steel, November 15, 1951
SRM 825 - Spectrographic Boron Steel Standards, August 2, 1951
SRM 826 - Spectrographic Boron Steel Standards, August 2, 1951
SRM 827 - Spectrographic Boron Steel Standards, August 2, 1951
SRM 828 - Spectrographic Boron Steel Standards, August 2, 1951
SRM 829 - Spectrographic Boron Steel Standards, August 2, 1951
SRM 830 - Spectrographic Steel Standards, August 2, 1951
SRM 836 to 841 Spectrographic Tool Steel Standards, September 22, 1959
SRM 845 - Spectrographic Stainless Steel Standards (Group II), January 19, 1966
SRM d845 - Spectrographic Stainless Steel Standards (Group II), January 19, 1966
SRM 846 - Spectrographic Stainless Steel Standards (Group II), January 19, 1966
SRM d846 - Spectrographic Stainless Steel Standards (Group II), January 19, 1966
SRM 847 - Spectrographic Stainless Steel Standards (Group II), January 19, 1966
SRM d847 - Spectrographic Stainless Steel Standards (Group II), January 19, 1966

SRM 848 - Spectrographic Stainless Steel Standards (Group II), January 19, 1966
SRM d848 - Spectrographic Stainless Steel Standards (Group II), January 19, 1966

SRM 849 - Spectrographic Stainless Steel Standards (Group II), January 19, 1966
SRM d849 - Spectrographic Stainless Steel Standards (Group II), January 19, 1966
SRM 850 - Spectrographic Stainless Steel Standards (Group II), January 19, 1966
SRM d850 - Spectrographic Stainless Steel Standards (Group II), January 19, 1966
SRM 853 - Aluminum Alloy 3004, May 8, 1985
SRM 854 - Aluminum Alloy 5182, May 8, 1985
SRM 855 - Aluminum Casting Alloy 356, January 8, 1980
SRM 856 - Aluminum Casting Alloy 380, January 8, 1980
SRM 858 - Aluminum Alloy 6011, June 6, 1980
SRM 858 - Aluminum Alloy 6011, March 15, 1995
SRM 859 - Aluminum Alloy 7075, June 6, 1980
SRM 868 - High-Temperatuare Alloy (Fe-Ni-Co), May 18, 1987
SRM 869 - Column Selectivity Test Mixture for Liquid Chromatography (Polycyclic Aromatic Hydrocarbons), March 28,1990
SRM 869a - Column Selectivity Test Mixture for Liquid Chromatography (Polycyclic Aromatic Hydrocarbons), October 15, 2007
SRM 886 - Refractory Gold Ore, April 12, 1993
SRM 900 -Antiepilepsy Drug Level Assay Standard, November 17, 1976
SRM 909 - Human Serum, September 15, 1980
SRM 909a - Human Serum, February 24, 1993
SRM 909b - Human Serum, March 14, 1996
SRM 909b - Human Serum, November 19, 2003
SRM 910 - Sodium Pyruvate, May 15, 1981
SRM 911 - Cholesterol, Provisional, October 20, 1967
SRM 911a - Cholesterol, March 5, 1980
SRM 911b - Cholesterol, April 15, 1994
SRM 912 - Urea, September 24, 1968
SRM 913 - Uric Acid, September 24, 1968
SRM 914 - Creatinine, September 24, 1968
SRM 915 - Calcium Carbonate, March 4, 1969
SRM 916 - Bilirubin, March 10, 1971
SRM 917 - D-Glucose (Dextrose), November 18, 1970
SRM 917a - D-Glucose (Dextrose, August 31, 1989)
SRM 918 - Potassium Chloride (Clinical Standard), January 22, 1971
SRM 918a - Potassium Chloride (Clinical Standard), April 17, 1995
SRM 919 - Sodium Chloride (Clinical Standard), August 6, 1973
SRM 919a - Sodium Chloride (Clinical Standard), April 23, 2004
SRM 920 - D-Mannitol, January 17, 1972
SRM 921 - Cortisol (Hydrocortisone), Preprint, February 15, 1973
SRM 922 - Tris(hydroxymethyl)aminomethane ph Standards, May 24, 1993
SRM 923 - Tris(hydroxymethyl)aminomethane hydrochloride ph Standards, May 24, 1993
SRM 924 - Lithium Carbonate, November 23, 1973
SRM 924a - Lithium Carbonate, June 12, 1995
SRM 925 - 4-Hydroxy-3-Methoxy-DL-mandelic-Acid (VMA), Preprint, May 24, 1973
SRM 926 - Bovine Serum Albumin (Total Protein Standard), March 10, 1977
SRM 927 - Bovine Serum Albumin (7% Solution) (Total Protein Standard), December 31, 1979
SRM 927a - Bovine Serum Albumin (7% Solution) (Total Protein Standard), January 13, 1993
SRM 927b - Bovine Serum Albumin (7% Solution) (Total Protein Standard), June 6, 1995
SRM 927c - Bovine Serum Albumin (7% Solution) (Total Protein Standard), January 14, 2004
S
RM 928 - Lead Nitrate (Clinical Standard), Preprint, November 1, 1975
SRM 929 - Magnesium Gluconate Dihydrate, April 27, 1979
SRM 929 - Magnesium Gluconate Dihydrate, March 2, 1993
SRM 930 - Glass Filters for Spectrophotometry, February 24, 1971
SRM 930a - Glass Filters for Spectrophotmetry, May 15, 1973
SRM 930b - Glass Filters for Spectrophotometry, February 24, 1971
SRM 930b - Glass Filters for Spectrophotometry, February 24, 1975
SRM 930c - Glass Filters for Spectrophotometry, May 29, 1976
SRM 930d - Glass Filters for Spectrophotometry, October 18, 1993
SRM 930e - Glass Filters for Spectrophotometry, May 12, 1998
SRM 931 - Liquid Absorbance Standards for Ultraviolet and Visible Spectrophotometry, Preliminary
SRM 931 - Liquid Absorbance Standards for Ultraviolet and Visible Spectrophotometry
SRM 931a - Liquid Absorbance Standards for Ultraviolet and Visible Spectrophotometry
SRM 931b - Liquid Absorbance Standards for Ultraviolet and Visible Spectrophotometry
SRM 931c - Liquid Absorbance Standards for Ultraviolet and Visible Spectrophotometry
SRM 931d - Liquid Absorbance Standards for Ultraviolet and Visible Spectrophotometry
SRM 931e - Liquid Absorbance Standards for Ultraviolet and Visible Spectrophotometry
SRM 931f - Liquid Absorbance Standards for Ultraviolet and Visible Spectrophotometry, February 4, 1999
SRM 932 - Quartz Cuvette for Spectrophotometry, December 2, 1980
SRM 933 - Clinical Laboratory Themometer
SRM 934 - Clinical Laboratoray Thermometer, June 18, 1990
SRM 935 - Crystalline Potassium Dichromate for Use as an Ultraviolet Absorbance Standard
SRM 935a - Crystalline Potassium Dichromate for Use as a Ultraviolet Absorbance Standard, April 25, 1988
SRM 936 - Quinine Sulfate Dihydrate, April 1, 1979
SRM 937 - Iron Metal (Clinical Standard), June 9, 1978
SRM 938 - 4-Nitrophenol, May 15, 1981
SRM 940 - Instruction for Phenol Thermometric Cells
SRM 941 - Naphthalene Thermometric Cells
SRM 942 - Phthalic Anhydride Thermometric Cells
SRM 943 - Benzoic Acid Thermometric Standard
SRM 944 - Plutonium Sulfate Tetrahydrate
SRM 945 - Plutonium Metal - Standard Matrix Material, Provisional, April 6, 1971
SRM 946 - Plutonium Isotopic Standard, August 19, 1982
SRM 947 - Plutonium Isotopic Standard, August 19, 1982
SRM 948 - Plutonium Isotopic Standard, August 7, 1964
SRM 948 - Plutonium Isotopic Standard, August 19, 1982
SRM 949a - Plutonium Metal
SRM 949b - Plutonium Metal
SRM 949c - Plutonium Metal
SRM 949d - Plutonium Metal, Provisional, January 23, 1973
SMR 949e - Plutonium Metal
SRM 949f - Plutonium Metal, May 11, 1982
SRM 949f - Plutonium Metal, September 13, 1982
SRM 950 - Uranium Oxide (U3O8)
SRM 950a - Uranium Oxide (U3O8), December 1, 1961
SRM 950b - Uranium Oxide (U3O8)
SRM 951 - Boric Acid, February 28, 1969
SRM 952 - Enriched Boric Acid, February 28, 1969
SRM 953 - Neutron Density Monitor Wire, Provisional, December 20, 1968
SRM 955 - Lead in Blood
SRM 955a - Lead in Blood, December 7, 1994
SRM 955b - Lead in Blood, April 10, 1998
SRM 955b - Lead in Blood, January 21, 2004
SRM 956 - Electrolytes in Human Serum for Ion Selective Electrodes
SRM 956a - Electrolytes in Human Serum for Ion Selective Electrodes, July 10, 2003
SRM 960 - Uranium Metal, May 12, 1972
SRM 961 - Fission Track Glass Standard (Wafers, 12 mm diameter and 3 mm thick), June 11, 1974
SRM 962 - Fission Track Glass (Wafers, 12 mm diameter and 3 mm thick)
SRM 962a - Fission Track Glass (Wafers, 12 mm diameter and 2 mm thick)
SRM 963 - Fission Track Glass (Wafers, 12 mm diameter and 3 mm thick)
SRM 964 - Fission Track Glass (Wafers, 12 mm diameter and 3 mm thick
SRM 965 - Glucose in Frozen Human Serum, December 18, 1996
SRM 966 - Toxic Metals in Bovine Blood, January 21, 2004
SRM 968 - Fat Soluble Vitamins in Human Serum, April 21, 1989
SRM 968a - Fat Soluble Vitamins in Human Serum, November 17, 1993
SRM 968b - Fat Soluble Vitamins in Human Serum, August 7, 1995
SRM 968c - Fat Soluble Vitamins in Human Serum, December 28, 1999
SRM 969 - Uranium Isotopic Standard Reference Material for Gamma Spectrometry Measurements, October 15, 1985
SRM 970 - Ascorbic Acid in Frozen Human Serum, October 18, 2004
SRM 975 - Isotopic Standard for Chlorine
SRM 976 - Isotopic Standard for Copper, January 26, 1994
SRM 978 - Isotopic Standard for Silver, March 24, 1965
SRM 981 - Common Lead Isotopic Standard, June 1, 1968
SRM 981 - Common Lead Isotopic Standard
, April 10, 1973
SRM 982 - Equal-Atom Isotopic Standard, March 25, 1991
SRM 983 - Radiogenic Lead Isotopic Standard, March 25, 1991
SRM 984 - Rubidium Chloride, Provisional, July 27, 1970
SRM 985 - Assay - Isotopic Standard for Potassium, August 31, 1979
SRM 987 - Strontium Carbonate, May 1, 2000
SRM 988 - Strontium-84 Spike Assay and Isotopic Solution Standard, May 21, 1973
SRM 989 - Assay - Isotopic Standard for Rhenium, February 19, 1974
SRM 990 - Assay - Isotopic Standard for Silicon, August 1, 1975
SRM 991 - Lead-206 Spike Assay and Isotopic Solution Standard, Preprint, February 5, 1976
SRM 993 - Uranium-235 Spike Assay and Isotopic Standard
SRM 995 - Uranium-233 Spike Assay and Isotopic Standard
SRM 997 - Isotopic Standard for Thallium, July 23, 1986
SRM 996 - Plutonium-244 Spike Assay and Isotopic Standard
SRM 999 - Potassium Chloride (Primary Chemical)
SRM 999a - Potassium Chloride (Primary Chemical)
SRM 1001 - X-ray Film Step Tablet, December 30, 2005
SRM 1002a - Surface Flammability Standard, October 30, 1964
SRM 1002b - Surface Flammability Standard, March 1, 1968
SRM 1002c - Surface Flammability Standard, December 13, 1978
SRM 1003 - Calibrated Glass Beads, Provisional, July 1, 1965
SRM 1003a - Calibrated Glass Beads, September 21, 1984
SRM 1003a - Calibrated Glass Beads, June 1, 1990
SRM 1003b - Calibrated Glass Beads
SRM 1004 - Calibrated Glass Beads, April 3, 1972
SRM 1004a - Calibrated Glass Beads
SRM 1006 - Smoke Density Chamber Standard Non-flaming Exposure Condition
SRM 1006a - Smoke Density Chamber Standard Non-flaming Exposure Condition
SRM 1006b - Smoke Denisty Chamber Standard Non-flaming Exposure Condition
SRM 1006c - Smoke Density Chamber Standard Non-flaming Exposure Condition
SRM 1006d - Smoke Density Chamber Standard Non-flaming Exposure Condition, August 27, 1999
SRM 1007 - Smoke Density Chamber Standard Flaming Exposure Condition, October 4, 1971
SRM 1007a - Smoke Density Chamber Standard Flaming Exposure Condition, February 27, 1976
SRM 1008 - Photographic Step Tablets, January 30, 2006
SRM 1008 and 1009 - Photographic Step Tablets, January 23, 1973
SRM 1009 - Photographic Step Tablet, August 18, 1978
SRM 1010 - Microcopy Resolution Test Chart
SRM 1010a - Microcopy Resolution Test Chart, June 1, 1990
SRM 1011 - Portland Cement
SRM 1013 - Portland Cement, Provisional, January 17, 1972
SRM 1014 - Portland Cement, Provisional, January 17, 1972
SRM 1015 - Portland Cement
SRM 1016 - Portland Cement
SRM 1017 - Glass Spheres
SRM 1017a - Calibrated Glass Beads
SRM 1018 - Glass Spheres
SRM 1018a - Calibrated Glass Beads
SRM 1019 - Glass Spheres, January 17, 1966
SRM 1019a Glass Spheres for Calibrating Test Sieves
SRM 1036 - Low Carbon Silicon Steel
SRM 1040 - Iron and Plain Carbon Steels for Oxygen and Nitrogen
SRM 1041 - Iron and Plain Carbon Steels for Oxygen and Nitrogen
SRM 1042 - Iron and Plain Carbon Steels for Oxygen and Nitrogen
SRM 1043 - Iron and Plain Carbon Steels for Oxygen and Nitrogen
SRM 1044 - Iron and Plain Carbon Steels for Oxygen and Nitrogen
SRM 1045 - Iron and Plain Carbon Steels for Oxygen and Nitrogen
SRM 1046 - Iron and Plain Carbon Steels for Oxygen and Nitrogen
SRM 1047 - Iron and Plain Carbon Steels for Oxygen and Nitrogen
SRM 1050 - Aluminum Cyclohexanebutyrate
SRM 1051a - Barium Cyclohexanebutyrate
SRM 1051b - Barium Cyclohexanebutyrate - July 15, 1968
SRM 1052a - Bis(1-phenyl-1,3-butanediono)oxovanadium(IV)
SRM 1052b - Bis(1-phenyl-1,3-butanediono)oxovanadium(IV), March 1 ,1968
SRM 1053 - Cadmium Cyclohexanebutyrate
SRM 1054 - Calcium Cyclohexanebutyrate
SRM 1055 - Cobalt Cyclohexanebutyrate
SRM 1055a - Cobalt Cyclohexanebutyrate

SRM 1055b - Cobalt Cyclohexanebutyrate
SRM 1056 - Cupric Cyclohexanebutyrate
SRM 1056a - Cupric Cylohexanebutyrate

SRM 1057 - Dibutyltin Bis(2-ethylhexanoate)
SRM 1057a - Dibutyltin Bis(2-ethylhexanoate)
SRM 1059 - Lead Cyclohexanebutyrate
SRM 1059a - Lead Cyclohexanebutyrate, April 24, 1964
SRM 1059b - Lead Cyclohexanebutyrate
SRM 1059c - Lead Cyclohexanebutyrate
SRM 1060 - Lithium Cyclohexanebutyrate
SRM 1060a - Lithium Cyclohexanebutyrate
SRM 1061 - Magnesium Cyclohexanebutyrate
SRM 1061a - Magnesium Cyclohexanebutyrate
SRM 1061b - Magnesium Cyclohexanebutyrate
SRM 1061c - Magnesium Cyclohexanebutyrate
SRM 1062 - Manganous Cyclohexanebutyrate, April 24, 1964
SRM 1062a - Manganous Cyclohexanebutyrate, April 24, 1964
SRM 1062b - Manganous Cyclohexanebutyrate
SRM 1063 - Menthyl Borate, April 24, 1964
SRM 1063a - Menthyl Borate
SRM 1064 - Mercuric Cyclohexanebutyrate, April 24, 1964
SRM 1065a - Nickel Cyclohexanebutyrate, April 24, 1964
SRM 1065b - Nickel Cyclohexanebutyrate, November 1, 1967
SRM 1066 - Octaphenylcyclotetrasiloxane, April 24, 1964
SRM 1066a - Octaphenylcyclotetrasiloxane, April 23, 1969
SRM 1068 - Silver Cyclohexanebutyrate, Provisional, October 31, 1960
SRM 1069a - Sodium Cyclohexanebutyrate, April 24, 1964
SRM 1069b - Sodium Cyclohexanebutyrate, February 13, 1969
SRM 1070 - Strontium Cyclohexanebutyrate, April 24, 1964
SRM 1070a - Strontium Cyclohexanebutyrate, April 24, 1964
SRM 1071 - Triphenyl Phosphate, April 24, 1964
SRM 1071a - Triphenyl Phosphate, April 24, 1964
SRM 1071b - Triphenyl Phosphate
SRM 1072 - Tris(1'-Hydroxyacetophenono)Chromium(III)
SRM 1073 - Zinc Cyclohexanebutyrate, Provisional, October 31, 1960
SRM 1073a - Zinc Cyclohexanebutyrate, April 24, 1964
SRM 1073b - Zinc Cylcohexanebutyrate, July 15, 1967
SRM 1074 - Calcium 2-Ethylhexanoate, July 31, 1961
SRM 1074a - Calcium 2-Ethylhexanoate
SRM 1074b - Calcium 2-Ethylhexanoate
SRM 1075 - Aluminum 2-Ethylhexanoate
SRM 1076 - Potassium Erucate
SRM 1077 - Silver 2-Ethylhexanoate, April 24, 1964
SRM 1077a - Silver 2-Ethylhexanoate, February 10, 1968
SRM 1078 - Tris(1-phenyl1-1,3-butanediono)Chromium(III), April 24, 1964
SRM 1078a - Tris(1-phenyl1-1,3-butanediono)chromium(III), Provisional, April 26, 1967
SRM 1079 - Tris(1-phenyl1-1,3-butanediono)iron(III), April 24, 1964
SRM 1079a - Tris(1-phenyl1-1,3-butanediono)iron(III), January 30, 1967
SRM 1080 - Bis(1-phenyl1,3-butanediono)copper(II), June 15,1967
SRM 1083 - Wear-Metals in Lubricating Oil
SRM 1084 - Wear-Metals in Lubricating Oil
SRM 1085 - Wear-Metals in Lubricating Oil
SRM 1085a - Wear Metals in Lubricating Oil
SRM 1085b - Wear Metals in Lubricating Oil
SRMs 1086, 1087, 1088 - Hydrogen in Unalloyed Titanium, June 16, 1980
SRM 1090 - Oxygen in Ferrous Materials
SRM 1091 - Oxygen in Ferrous Materials
SRM 1092 - Oxygen in Ferrous Materials
SRM 1093 - Oxygen in Valve Steel, Provisional, March 4, 1969
SRM 1094 - Oxygen in Maraging Steel, Provisional, March 4, 1969
SRM 1095 - AISI 4340 Steel (Gasometric Standard)
SRM 1096 - AISI 94B17 Steel (Modified) (Gasometric Standard), April 21, 1986
SRM 1097 - Cr-V Steel (Modified), April 21, 1986
SRM 1098 - High-Carbon Steel (Modified) (Gasometric Standard), April 21, 1986
SRM 1099 - Electrolytic Iron (Gasometric Standard), April 21, 1986
SRM C1100 - Optical Emission and X-ray Spectroscopic Analysis
SRM 1101 - Optical Emission and X-ray Spectroscopic Analysis
SRM C1101 - Optical Emission and X-ray Spectroscopic Analysis
SRM 1102 - Optical Emission and X-ray Spectroscopic Analysis
SRM C1102 - Optical Emission and X-ray Spectroscopic Analysis
SRM 1103 - Free-Cutting Brass (Wrought)
SRM C1103 - Free-Cutting Brass (Cast)
SRM C1105 - Free Cutting-Brass (Cast)
SRM 1105 - Free Cutting-Brass (Cast), Provisional, July 14, 1965
SRM 1106 - Naval Brass Standards for Optical Emissions and Spectroscopic Analysis, November 23, 1981
SRM C1106 - Naval Brass Standards for Optical Emissions and Spectroscopic Analysis, November 23, 1981
SRM 1107 - Naval Brass Standards for Optical Emissions and Spectroscopic Analysis, November 23, 1981
SRM C1107 - Naval Brass Standards for Optical Emissions and Spectroscopic Analysis, November 23, 1981
SRM 1108 - Naval Brass Standards for Optical Emissions and Spectroscopic Analysis, November 23, 1981
SRM C1108 - Naval Brass Standards for Optical Emissions and Spectroscopic Analysis, November 23, 1981
SRM 1109 - Red Brass, Provisional, July 14, 1965
SRM 1109 - Red Brass, December 11, 1981
SRM 1112 - Gilding Metal Standards for Optical Emission and X-Ray Spectroscopic Analysis, Provisional
SRM C1112 - Gilding Metal Standards for Optical Emission and X-Ray Spectroscopic Analysis, Provisional
SRM 1113 - Gilding Metal Standards for Optical Emission and X-Ray Spectroscopic Analysis, Provisional
SRM C1113 - Gilding Metal Standards for Optical Emission and X-Ray Spectroscopic Analysis, Provisional
SRM 1114 - Gilding Metal Standards for Optical Emission and X-Ray Spectroscopic Analysis, Provisional
SRM C1114 - Gilding Metal Standards for Optical Emission and X-Ray Spectroscopic Analysis, Provisional

SRM 1112 - Gilding Metal Standards for Optical Emission and X-Ray Spectroscopic Analysis, Provisional, February 14, 1964
SRM C1112 - Gilding Metal Standards for Optical Emission and X-Ray Spectroscopic Analysis, Provisional, February 14, 1964
SRM 1113 - Gilding Metal Standards for Optical Emission and X-Ray Spectroscopic Analysis, Provisional, February 14, 1964
SRM C1113 - Gilding Metal Standards for Optical Emission and X-Ray Spectroscopic Analysis, Provisional, February 14, 1964
SRM 1114 - Gilding Metal Standards for Optical Emission and X-Ray Spectroscopic Analysis, Provisional, February 14, 1964
SRM C1114 - Gilding Metal Standards for Optical Emission and X-Ray Spectroscopic Analysis, Provisional, February 14, 1964

SRM 1115 - Optical Emission and X-Ray Spectroscopic Analysis, Provisional, February 14, 1964
SRM C1115 - Optical Emission and X-Ray Spectroscopic Analysis, Provisional, February 14, 1964
SRM 1116 - Optical Emission and X-Ray Spectroscopic Analysis, Provisional, February 14, 1964
SRM C1116 - Optical Emission and X-Ray Spectroscopic Analysis, Provisional, February 14, 1964
SRM 1117 - Optical Emission and X-Ray Spectroscopic Analysis, Provisional, February 14, 1964
SRM C1117 - Optical Emission and X-Ray Spectroscopic Analysis, Provisional, February 14, 1964

SRM 1118 - Aluminum Brass, Provisional, July 14, 1965
SRM C1118, C1119, C1120 - Aluminum Brass Standards, July 12, 1982
SRM 1118 - Aluminum Brass, December 11, 1981
SRM 1119 - Aluminum Brass, Provisional, July 14, 1965
SRM 1119 - Aluminum Brass, December 11, 1981
SRM 1120 - Aluminum Brass, Provisional, July 14, 1965
SRM 1121, C1121, 1122, C1122, 1123, C1123 - Beryllium Copper Standards, December 11, 1981
SRM 1132 - Lead Base Bearing Metal, November 18, 1994
SRM 1133 - Titanium-Base Alloy
SRM C1137a - White Cast Iron, September 18, 1984
SRM 1138 and 1139 - Cast Steel Standards, July 13, 1970
SRM 1140, 1141 and 1142 - Ductile Iron Standards, February 24, 1970
SRM 1140a, 1141a, and 1142a - Ductile Iron Standards, September 15, 1973
SRM 1143, 1144, 1147, 1148, 1149 - Blast Furnace and White Iron, Provisional, July 31, 1969
SRM 1143a and 1144a - Blast Furnace Iron Standards, (Chill Cast White), December 1, 1976
SRM 1145 - White Cast Iron, May 16, 1978
SRM 1145a - White Cast Iron, June 26, 1987
SRM 1146 - White Cast Iron, May 16, 1978
SRM C1146a - White Cast Iron, October 1, 1983
SRM 1147a - White Iron Standard, April 8, 1974
SRM 1150 - White Cast Iron
SRM C1150a - White Cast Iron, January 4, 1988
SRM C1151 - Stainless Steel 23Cr-7 Ni, January 31, 1980
SRM 1152 - 18 Cr-10 Ni Steel, February 9, 1966
SRM C1152 -18 Cr-11 Ni Steel, January 31, 1980
SRM C1153 - 17 Cr-9 Ni Steel, January 31, 1980
SRM C1153a - 17 Cr-9 Ni Steel, April 21, 1986
SRM 1154 - Cr-10 Nickel Steel
SRM C1154 - Stainless Steel, 19Cr-13Ni
SRM 1156 - Maraging Steel, August 26, 1981
SRM 1157 - Tool Steel (AISI M2), Provisional, November 7, 1972
SRM 1158 - High Nickel Steel, December 30, 1977
SRM 1159 and 1160 - Electronic and Magnetic Alloy Standards, Provisional, February 18, 1969
SRM 1159 and 1160 - Electronic and Magnetic Alloy Standards, August 4, 1981
SRM 1161 - Spectrographic Ingot Iron and Low-Alloy Steel Standards
SRM 1162 - Spectrographic Ingot Iron and Low-Alloy Steel Standards
SRM 1163 - Spectrographic Ingot Iron and Low-Alloy Steel Standards
SRM 1164 - Spectrographic Ingot Iron and Low-Alloy Steel Standards
SRM 1165 - Spectrographic Ingot Iron and Low-Alloy Steel Standards
SRM 1166 - Spectrographic Ingot Iron and Low-Alloy Steel Standards
SRM 1167 - Spectrographic Ingot Iron and Low-Alloy Steel Standards
SRM 1168 - Spectrographic Ingot Iron and Low-Alloy Steel Standards
SRM 1169 - Spectrographic Ingot Iron and Low-Alloy Steel Standards
SRM 1169a - Spectrographic Ingot Iron and Low-Alloy Steel Standards
SRM 1169b - Spectrographic Ingot Iron and Low-Alloy Steel Standards
SRM 1170 - Selenium-Bearing Steel
SRM 1170a - Selenium-Bearing Steel
SRM 1170b - Selenium-Bearing Steel
SRM 1171 - Cr 17-Ni 11-Ti 0.3 (AISI 321), July 7, 1971
SRM 1173 - Ni-Cr-Mo-V Steel, June 9, 1989
SRM C1173a - Cast Steel 3, February 24, 1981
SRM 1174 - White Iron, November 9, 1965
SRM 1174a - White Iron
SRM 1175 - White Iron
SRM 1175a - White Iron
SRM 1176-1183 - White Cast Iron Standards
SRM 1184 -1189 - High Temperature Alloy Standards
SRM 1186, 1188 - High Temperature Alloy Standards
SRM 1190, 1203, 1204, 1205 - High Temperature Alloy Standards
SRM 1191-1192 - High Temperature Alloy Standards
SRM 1193, 1194, 1195 - High Temperature Alloy Standards
SRM 1197, 1198, 1199, 1200, 1201 - High Temperature Alloy Standards
SRM 1206-2, 1207-1, 1207-2, 1208-1, 1208-2 - High Temperature Alloy Standards
SRM 1210, 1211 - Zirconium Metal Standards
SRM 1212a - Zirconium Metal C
SRM 1213, 1214, 1215 - Zircaloy-2 Metal Standards
SRM 1217 - Nickel Steel
SRM C1221 - LA Carbon, (AISI 1211), January 20, 1982

SRM 1222 - LA Steel, Chromium-Nickel-Molybdenum (AISI 8640), September 13, 1990
SRM 1223 - Chromium Steel, September 5, 1985
SRM 1224 - LA Steel, Carbon (AISI 1078), February 24, 1981
SRM 1225 - LA Steel (AISI 4130), March 16, 1983
SRM 1226 - LA Steel, December 14, 1982
SRM 1228 - LA Steel, 0.1 % C, September 28, 1982
SRM 1233 - Specialty Steel, Valve Steel, February 3, 1986
SRM 1234, 1235, 1236 - Zirconium Metal
SRM 1237, 1238, 1239 - Zircaloy-4 Metal
SRM 1240 - Aluminum Alloy 3004
SRM 1240a - Aluminum Alloy 3004
SRM 1240b - Aluminum Alloy 3004
SRM 1241 - Aluminum Alloy
SRM 1241a - Aluminum Alloy
SRM 1241b - Aluminum Alloy
SRM 1241c - Aluminum Alloy, April 4, 2006
SRM 1245 - Inconel 625, May 5, 1984
SRM C1251 - Phosphorized Copper - CU VIII, April 10, 1986
SRM C1251a - Phosphorized Copper - CU VIII, July 23, 2002
SRM C1252 - Phosphorized Copper - CU IX, April 10, 1986
SRM C1253 - Phosphorized Copper - CU X, September 16, 1980
SRM C1253a - Phosphorized Copper - CUX, July 23, 2002
SRM 1255 - Aluminum Casting Alloy 356
SRM 1255a - Aluminum Casting Alloy 356
SRM 1256 - Aluminum Casting Alloy 380
SRM 1256a - Aluminum Casting Alloy 380
SRM C1257 - High Purity Aluminum
SRM 1258 - Aluminum Alloy 6011 Modified, June 4, 2004
SRM 1261 - AISI 4340 Steel, January 8, 1976
SRM 1261 - AISI 4340 Steel, February 24, 1981
SRM 1261a - AISI 4340 Steel, May 18, 1993
SRM 1262 - AISI 94B17 Steel Modified, February 24, 1981
SRM 1262a - AISI 94B17 Steel Modified, June 27, 1989
SRM 1263 - LA Steel Cr-V Modified, February 24, 1981
SRM 1263a - LA Steel Cr-V Modified, February 24, 1981
SRM 1264 - High Carbon Steel Modified, February 24, 1981
SRM 1264a - High Carbon Steel Modified, April 7, 2006
SRM 1265 - Electrolytic Iron, Provisional, July 28, 1970
SRM 1265 - Electrolytic Iron, February 24, 1981
SRM 1265a - Electrolytic Iron, February 24, 1981
SRM 1267 - Stainless Steel (AISI 446), January 19, 1978
SRM 1275 - Cupro-Nickel (CDA 706)
SRM 1276 - Cupro-Nickel (CDA 715)
SRM 1276a - Cupro-Nickel (CDA 715), June 30, 1989
SRM 1286 - Low Alloy Steel (HY 80), June 8, 1982
SRM C1287 - High Alloy Steel, ACI HK (AISI 310 Mod), June 11, 1981
SRM C1288 - High Alloy Steel, ACI CN-7M (A743) (Stainless Steel A743), August 1, 1981
SRM 1321 - Nonmagnetic Coating on Steel, July 5, 1988
SRM 1322 - Nonmagnetic Coating on Steel
SRM 1323 - Nonmagnetic Coating on Steel, July 5, 1988
SRM 1331a - Nickel on Steel
SRM 1332a - Nickel on Steel
SRM 1333a - Nickel on Steel
SRM 1334a - Nickel on Steel
SRM 1335a - Nickel on Steel
SRM 1336a - Nickel on Steel
SRM 1337a - Nickel on Steel
SRM 1338a - Nickel on Steel
SRM 1339a - Nickel on Steel
SRM 1357 - Cu and Cr Coating on Steel, September 11, 1985
SRM 1358 - Cu and Cr Coating on Steel
SRM 1358b - Cu and Cr Coating on Steel
SRM 1359 - Cu and Cr Coating on Steel, July 5, 1988
SRM 1360 - Cu and Cr Coating on Steel, July 5, 1988
SRM 1361a - Cu and Cr Coating on Steel, July 5, 1988
SRM 1361b - Cu and Cr Coating on Steel, June 18, 1999
SRM 1362a - Cu and Cr Coating on Steel, July 5, 1988
SRM 1362b - Cu and Cr Coating on Steel, June 18, 1999
SRM 1363a - Cu and Cr Coating on Steel, July 5, 1988
SRM 1363b - Cu and Cr Coating on Steel, June 18, 1988
SRM 1364a - Cu and Cr Coating on Steel, July 26, 1991
SRM 1364b - Cu and Cr Coating on Steel, June 18, 1999
SRM 1365a - Nickel on Steel, May 1, 1984
SRM 1366a - Nickel on Steel, May 1, 1984
SRM 1367a - Nickel on Brass, May 1, 1984
SRM 1371 - Gold on Fe-Ni-Co Alloy, January 11, 1990
SRM 1372 - Gold on Fe-Ni-Co Alloy, January 11, 1990
SRM 1373 - Gold on Fe-Ni-Co Alloy, January 11, 1990
SRM 1374 - Gold on Fe-Ni-Co Alloy, January 1, 1990
SRM 1375 - Gold on Nickel, January 11, 1990
SRM 1376 - Gold on Nickel, January 11, 1990
SRM 1376 - Gold on Nickel, October 18, 1990
SRM 1377 - Gold on Nickel, January 11, 1990
SRM 1378 - Gold on Nickel, January 11, 1990
SRM 1379 - Ultrathin Gold on Nickel, January 11, 1990
SRM 1380 - Ultrathin Gold on Nickel, January 11, 1990
SRM 1387 - Gold on NIckel, January 11, 1990
SRM 1398a - Gold on Fe-Ni-Co Alloy
SRM 1399b - Gold on Nickel
SRM 1402 - 1409 - Platinum 13 % Rhodium Alloy
SRM 1414 - Lead-Silica Glass
SRM 1420 - 1428 - Oxidized Kanthal
SRM 1440 - 1447 - Oxidized Inconel
SRM 1450 - Fibrous Glass Board, May 26, 1978
SRM 1450a - Fibrous Glass Board
SRM 1450b - Fibrous Glass Board, May 21, 1982
SRM 1460-1466-1462 - Austenitic Stainless Steels
SRM 1465 - 1469 - Sintered and Arc-Cast Tungsten
SRM 1451 - Fibrous Glass Blanket
SRM 1470 - Polyester Plastic Film for Gas Transmission, January 2, 1978
SRM 1473 - Polyethylene Resin
SRM 1473a - Polyethylene Resin
SRM 1474 - Polyethylene Resin
SRM 1475 - Linear Polyethylene, December 2, 1971
SRM 1475a - Linear Polyethylene, December 28, 1993
SRM 1476 - Branched Polyethylene
SRM 1479 - Polystyrene, March 27, 1981
SRM 1482 - Linear Polyethylene
SRM 1483 - Linear Polyethylene, March 9, 1976
SRM 1483a - Linear Polyethylene
SRM 1484 - Linear Polyethylene
SRM 1490 - Polyisobutylene Solution in Cetane
SRM 1491 - Aromatic Hydrocarbons in Hexane/Toluene, August 31, 1989
SRM 1492 - Chlorinated Pesticides in Hexane, December 1, 1998
SRM 1495 - Isobutylene-Isoprene (Butyl) Rubber
SRM 1494 -Aliphatic Hydrocarbons in 2,2,4-Trimethylpentane
SRM 1504,1505,1506 - For Permittivity (7940 Fused Silica)
SRM 1507 - THC-COOH in Urine, June 4, 1990
SRM 1507a -THC-COOH in Urine
SRM 1507b - THC-COOH in Urine, September 29, 2003
SRM 1508 - Cocaine and Metabolites in Freeze-Dried Urine, June 25, 1990
SRM 1508a - Cocaine and Metabolites in Freeze-Dried Urine, December 22, 2003
SRM 1511 - Determination of Dielectric Constant Cyclohexane, September 19, 2005
SRM 1512 - Determination of Dielectric Constant 1,2-Dichloroethane, Provisional, July 2, 1969
SRM 1513 - Determination of Dielectric Constant Nitrobenzene
SRM 1515 - Apple Leaves, July 2, 1991
SRM 1516-1519 - For Permittivity 103 Hz and 23°C
SRM 1520 - Boron-Doped Silicon Wafers for Resistivity Measurements
SRM 1521 - Boron-Doped Silicon Slices for Resistivity Measurements, October 4, 1991
SRM 1522 - Silicon Power Device Level Resistivity Standard, October 4, 1991
SRM 1523 - Silicon Resistivity Standard for Eddy Current Testers, October 4, 1991
SRM 1541 - Iron Foil Mossbauer, October 1, 1981
SRM 1546 - Meat Homogenate, January 6, 2004
SRM 1547 - Peach Leaves, July 2, 1991
SRM 1548 - Total Diet, September 28, 1990
SRM 1548a - Typical Diet, October 26, 2004
SRM 1549 - Non-Fat Milk Powder, January 14, 1985
SRM 1549 - Non-Fat Milk Powder, July 29, 1985
SRM 1563 - Cholesterol and Fat-Soluble Vitamins in Coconut Oil, May 5, 1999
SRM 1566 - Oyster Tissue, December 12, 1979
SRM 1566a - Oyster Tissue, October 2, 1989
SRM 1567 - Wheat Flour, January 3, 1978
SRM 1567a Wheat Flour, October 23, 1987
SRM 1568 - Rice Flour, January 3, 1978
SRM 1568a - Rice Flour, January 20, 1988
SRM 1569 - Brewers Yeast
SRM 1570 - Trace Elements in Spinach, September 1, 1976
SRM 1570a - Trace Elements in Spinach, July 15, 1996
SRM 1571 - Orchard Leaves, August 31, 1977
SRM 1572 - Citrus Leaves, February 22, 1982
SRM 1573 - Tomato Leaves
SRM 1575 - Pine Needles, October 18, 1976
SRM 1577 - Bovine Liver, June 14, 1977