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Homepage>ISO Standards>ISO 3699:1976-Anhydrous hydrogen fluoride for industrial use — Determination of water content — Karl Fischer method
download between 0-24 hoursReleased: 1976
ISO 3699:1976-Anhydrous hydrogen fluoride for industrial use — Determination of water content — Karl Fischer method

ISO 3699:1976

ISO 3699:1976-Anhydrous hydrogen fluoride for industrial use — Determination of water content — Karl Fischer method

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Standard´s number:ISO 3699:1976
Pages:6
Edition:1
Released:1976
DESCRIPTION

ISO 3699:1976


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.
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