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Description

Reference material (RM) 8172 is intended primarily for use as a reference point for allowing laboratories to compare their present realization of a temperature scale at the copper freezing-point with NIST's historical realizations of the International Practical Temperature Scale of 1968 (IPTS-68) circa December 6, 1971 and of the International Temperature Scale of 1990 (ITS-90) circa April 12, 1990, where the dates correspond to the dates on the certificates initially provided with SRM 45d and when updated for the transition from IPTS-68 to ITS-90.

Contents

Miscellaneous

Certificate of Analysis (specimen)

Reference Material CoA specimen: for the current lot, please contact your customer service representative at info@labmix24.com

Product data sheet

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NIST | National Institute of Standards and Technology

NIST provides over 1300 Standard Reference Materials® as well as articles and practice guides describing the development, analysis and use of SRMs.

NIST Standard Reference Materials are used by analytical laboratories in industry, academia and government in order to facilitate commerce and trade and to advance research and development. The SRMs are produced by the engineering laboratory, the material measurement laboratory, and the physical measurement laboratory at NIST. They are available for chemical composition, physical properties, and engineering materials.