SRM 3163 Tungsten (W) Standard Solution, Lot No. 140606

This Standard Reference Material (SRM) is intended for use as a primary calibration standard for the quantitative determination of tungsten. A unit of SRM 3163 consists of 50 mL of an acidified aqueous solution prepared gravimetrically to contain a known mass fraction of tungsten in a high-density polyethylene bottle sealed in an aluminized bag. The solution contains nitric acid at a volume fraction of approximately 7 % and hydrofluoric acid at a volume fraction of approximately 4 %, equivalent to amount of substance concentrations (molarities) of approximately 1.2 mol/L and 1.1 mol/L respectively. This data is public in the Certificate of Analysis for this material.

[
  "006:55"
]

{
  "fn": "Steven J. Choquette",
  "hasEmail": "mailto:srms@nist.gov"
}

[
  "Biosciences and Health",
  "cations",
  "pure materials",
  "single-element solutions",
  "spectrometry",
  "tungsten"
]

[
  "en"
]

[
  "006:052"
]

{
  "name": "National Institute of Standards and Technology",
  "@type": "org:Organization"
}

[
  "Standards:Reference materials"
]