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Description

This Standard Reference Material (SRM®) is intended for use in the calibration of all hardness and microhardness testing machines whereby a Vickers indentation is made and then measured with a microscope. The SRM® has five NIST-made indents in the middle of a polished face certified for the individual diagonal lengths, the average diagonal length, and the average hardness value for indentations made at a load of 9.8 N (1 kgf). A unit of NIST-2831 consists of a 25 mm D × 9.5 mm disk that has a nominal hardness of approximately 15.0 GPa (1530 kgf/mm2) packaged in a wooden box. Each unit is individually certified and bears a serial number (the letter W followed by a hyphen and the disk number) scribed on the opposite (bottom) face of the disk. /// Sample value(s) - please ask for current certificate.

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

View all available product details e.g. description, analytes/parameters, CAS Number, concentrations/values, sales unit/product format, method, source, transport information

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.