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Definitions of Terms and Modes Used at NIST for Value-Assignment of Reference Materials for Chemical Measurements



Willie E. May, Reenie M. Parris, C M. Beck, John D. Fassett, Robert R. Greenberg, Franklin R. Guenther, Gary W. Kramer, Stephen Wise, T E. Gills, Jennifer C. Colbert, R J. Gettings, Bruce S. MacDonald


Standard Reference Materials (SRMs) are certified reference materials (CRMs) issued by NIST that are well-characterized using state-of-the-art measurement methods and/or techniques for the determination of chemical compositon and physical properties. SRMs are used to ensure the accuracy, traceability, and comparability of measurement results in many diverse fields of science, industry, and technology, both within the United States and throughout the world. The NIST Special Publication 260 Series is a series of publications used to provide details of the procedures, modes, and philosophy used at NIST to produce, certify and use SRMs. A list of these publications can be assessed through the Internet, http// 260-series publication is dedicated to the documentation of NIST's current practices for value-assigning SRMs for chemical composition which cover approximately 900 SRMs of different types. This publication is the culmination of the efforts of a task group consisting of NIST technical staff from the Analytical Chemistry Division of the Chemical Science and Technology Laboratory and representatives from the Standard Reference Matrials Progam of Technology Services.
Special Publication (NIST SP) - 260-136
Report Number


certification, chemical measurements, modes, standard reference materials, value-assignment


May, W. , Parris, R. , Beck, C. , Fassett, J. , Greenberg, R. , Guenther, F. , Kramer, G. , Wise, S. , Gills, T. , Colbert, J. , Gettings, R. and MacDonald, B. (2000), Definitions of Terms and Modes Used at NIST for Value-Assignment of Reference Materials for Chemical Measurements, Special Publication (NIST SP), National Institute of Standards and Technology, Gaithersburg, MD (Accessed April 17, 2024)
Created December 31, 1999, Updated October 12, 2021