Reference number
ISO 3699:1976
ISO 3699:1976
© ISO 2024
International Standard
ISO 3699:1976
Anhydrous hydrogen fluoride for industrial use — Determination of water content — Karl Fischer method
Edition 1
1976-08
1976-08
ISO 3699:1976
9174
Published
(Edition 1, 1976)
This publication was last reviewed and confirmed in 2015.
Therefore this version remains current.
Abstract
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
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Status: PublishedPublication date: 1976-08Stage: Close of review [90.60]
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Edition: 1Number of pages: 6
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Technical Committee :ISO/TC 226ICS :71.060.30
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