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ISO 3699:1976

Anhydrous hydrogen fluoride for industrial use — Determination of water content — Karl Fischer method

Standard Details

Applicable to products having a water content between 0.01 % (m/m) and 0.5 % (m/m). Is supplemented by ISO 3700 and intended for reference purposes. Bases on addition of a cooled test portion to cooled dry pyridine containing 5 % of anhydous hydrogen fluoride. The apparatus for measuring the test portion and titration and the measuring vessel are shon in figures. Subsequent electrometric titration of the water with the Karl Fischer reagent.

General Information

Status : Published
Standard Type: Main
Document No: ISO 3699:1976
Document Year: 1976
Pages: 6
Edition: 1
  • Section Volume:
  • ISO/TC 226. Materials for the production of primary aluminium

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ISO 3699:1976
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