C E R A M I C S A N D G L A S S E S Carbides (powder)


SRM/RM Description 112b


276b 8983


Silicon Carbide Tungsten Carbide


Silicon Nitride Powder


Unit Size (g) 80


75 4.5


Cemented Tungsten Carbides (powder) Unit Size: 100 g


SRM Description


887 Cemented Carbide (83W - 10Co) 888 Cemented Carbide (64W - 25Co - 5Ta) 889 Cemented Carbide (75W - 9Co - 5Ta - 4Ti)


Trace Elements (wafer)


These SRMs are for calibrating instruments and evaluating analytical techniques used to determine trace elements in inorganic matrices. SRMs 610 through 617 come in units of 6 wafers with wafer thicknesses of 3 mm for even numbered SRMs and 1 mm for odd numbered SRMs.


SRM Description


610/611 Nominal 500 mg/kg per element, 8 certified, 9 information values 612/613 Nominal 50 mg/kg per element, 8 certified, 18 information values 614/615 Nominal 1 mg/kg per element, 8 certified, 13 information values 616/617 Nominal 0.2 mg/kg per element, 5 certified, 11 information values


68


WWW.NIST.GOV/SRM  PHONE: (301) 975-2200  FAX: (301) 948-3730  EMAIL: SRMINFO@NIST.GOV


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