Standard Reference Material

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standard reference material

[′stan·dərd ′ref·rəns mə‚tir·ē·əl]
(analytical chemistry)
A reference material distributed and certified by the appropriate national institute for standardization.

Standard Reference Material


any one of the substances (materials) with precisely known and officially certified values of variables peculiar to a given substance. Standard reference materials quantitatively characterize the content of isotopes, elements, and compounds. An example is seen in the standard reference material for stainless steel, which is certified by chemical composition. These materials also quantitatively characterize the properties of a given substance, as in the standard reference material for benzoic acid, which is certified by the specific heat of combustion, and certain technical variables, as in the standard reference material for the thickness of the epitaxial structures of silicon. Owing to their purpose, standard reference materials belong to the class of metrological means known as measures. They are prepared through special technological processes, and the values of the certified quantities are established in accordance with the results of a predetermined program of study of standard reference materials of each type.

Standard reference materials are widely used to control the accuracy of the results of quantitative determinations of the characteristics of substances and to calibrate instruments for making these determinations. The materials are used primarily in the prospecting, mining, and treating of ores, the production and consumption of metals, alloys, fuels, and lubricants, and the control of raw materials and other materials supplied through agreements on international economic cooperation. They are also important in public health (clinical chemical analyses) and in the monitoring of environmental pollution. Because of the great importance of standard reference materials, the production and application of the materials have attracted the attention of metro-logical organs in a number of countries and have figured in activities of a number of international organizations. The French term for these materials is materiaux de référence, and the German term, Normalproben.


Shaevich, A. B. Izmerenie i normirovanie khimicheskogo sostava veshchestv. Moscow, 1971.
Oleinik, B. N. Tochnaia kalorimetriia, 2nd ed. Moscow, 1973.
Standartnye obraztsy, vypuskaemye v SSSR [Spravochnik]. Edited by A. B. Shaevich. [Moscow] 1973.
US National Bureau of Standards: Standard Reference Materials: 1973 (Catalog). Washington, 1973.


References in periodicals archive ?
Effect of standard reference material of fine particulate matter (SRM 2786) exposure on the expression of Bax and Bcl-2 in human lung bronchial epithelial (16HBE) cells
[12] NIST (2009) Standard Reference Material 640d: Silicon Powder Line position and line shape standard for powder diffraction.
Table-2: Comparison of the analytical results of some analytes in GBW 07605 standard reference materials with and without subtraction of oxide interferences (n=3).
APM samples consisted of standard reference materials (SRMs) 1649 "urban dust", and 1650 "diesel particulate matter", referred in this study as diesel dust (National Institute of Standards & Technology, Gaithersburg, MD).
[9] Travis JC, Smith MV, Choquette SJ, Liu H-K (2011) Certified Transmittance Density Uncertainties for Standard Reference Materials using a Transfer Spectrophotometer.
Some labs do use a Standard Reference Material (SRM) to crosscheck MFI test results.
Consumer Product Safety Commission said, "The Commission also proposed an amendment to the existing mattress standard (16 CFR Part 1632) to incorporate the new Standard Reference Material cigarette developed in cooperation with NIST (SRM 1196) as the ignition source in the tests.
Louis, Missouri, urban particles (UPs; Standard Reference Material 1648) on the constriction of isolated rat pulmonary artery tings and the activation of extracellular signal-regulated kinases 1 and 2 (ERK1/2) and p38 mitogen-activated protein kinases (MAPKs) in human pulmonary artery endothelial cells with or without losartan, an antagonist of A[T.sub.1]R.
The new standard reference material consists of five hot--pressed silicon nitride flexure specimens.
A natural uranium radioactivity solution standard was last issued by the National Institute of Standards and Technology (NIST) nearly 20 years ago as a Standard Reference Material (SRM) (1) and has been out of stock and unavailable for many years.
[2] Nonstandard abbreviations: 25-OHD, 25-hydroxyvitamin D; VDBP, vitamin D--binding protein; RMP, reference measurement procedure; SRM, Standard Reference Material; LC-MS/MS, liquid chromatography--tandem mass spectrometry; CPB, competitive protein-binding (method); DEQAS, Vitamin D External Quality Assessment Scheme; 24,25-[(OH).sub.2]D, 24,25-dihydroxyvitamin D; 3- epi25-OH[D.sub.3], 3-epi-25-hydroxyvitamin [D.sub.3].

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