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Beschreibung

This Standard Reference Material (SRM®) is intended for use as a primary calibration standard for the quantitative determination of tungsten. A unit of NIST-3163 consists of 50 mL of a single element solution in a high-density polyethylene bottle sealed in an aluminized bag. The solution was prepared gravimetrically to contain a known mass fraction of tungsten. The solution contains nitric acid at a concentration of approximately 1.1 mol/L and hydrofluoric acid at a concentration of approximately 1.1 mol/L. /// Sample value(s) - please ask for current certificate.