STANDARD REFERENCE MATERIALS FOR CLINICAL MEASUREMENTS*†
|
SRM
NO. |
SRM DESCRIPTION |
PURITY (%) |
PROPERTY CERTIFIED |
WT/UNIT (G) |
CERTIFICATE DATE |
|
40h 83d 84j 136c 186Ic 186IIc 350a 911a 912a 913 914 915 916 917 918 919 922 923
930D
931d
933 937 955 2201
2202 |
Sodium oxalate Arsenic trioxide Potassium hydrogen Potassium dichromate Potassium dihydrogen phosphate Disodium hydrogen phosphate Benzoic acid Cholesterol Urea Uric acid Creatinine Calcium carbonate Bilirubin D-Glucose Potassium chloride Sodium chloride Tris (hydroxymethyl) aminomethane Tris (hydroxymethyl)aminomethane hydrochloride Glass filters for spectrophotometry (visible) Liquid filters for spectrophotometry (UV and visible) Clinical laboratory thermometers Iron metal Lead in blood NaCl
KCl |
99.95 99.99 99.993 99.98 99.9 99.9 99.98 99.4 99.9 99.7 99.8 99.9 99 99.9 99.9 99.9 99.9 99.7
99.9 4 levels 99.9
99.9 |
Reductometric standard Reductometric standard Acidimetric standard Oxidation standard pH 6.863 pH 7.415 Acidic standard Identity and purity Identity and purity Identity and purity Identity and purity Identity and purity Identity and purity Identity and purity Identity and purity Identity and purity pH 7.699 pH
Transmittance (440-635 nm) Absorbance (302-678 nm) Temperature
pNa pCl pK pCl |
60 75 60 60 30 30 30 2.0 25 10 10 20 0.1 25 30 30 25 35
3 filters
Set of 12 vials
Set of 3 50 Set of 4 vials 125
160 |
May 1982 March 1982 November 1984 March 1970 September 1970 September 1970 April 1981 June 1974 November 1979 November 1973 November 1968 November 1973 March 1971 September 1973 November 1973 November 1973 August 1976 August 1976
August 1984
October 1986
August 1974 June 1978 December 1984 March 1984
March 1984 |
* Orders and requests for information about these SRMs should be directed to the Office of Standard Reference Materials, Institute for Materials Research, National Bureau of Standards, Washington, DC 20234.
†NBC Spec. Publ. 260, Catalog of NBS Standard Reference Materials 1988-1989 edition, NIST Standard Reference Materials Catalog, 1993 edition.
Abbreviations: pNa = negative log activity of Na expressed as molality; pCl = negative log activity of Cl expressed as molality.