ISO 3700:1980

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

Publication date:   Sep 1, 1980

95.99   Withdrawal of Standard   May 27, 2002

General information

95.99   Withdrawal of Standard   May 27, 2002

ISO

ISO/TC 47 Chemistry

International Standard

71.060.30   Acids

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Scope

Suitable for use as a routine alternative to the Karl Fischer method specified in ISO 3699 but may give a lower standard of accuracy. Applicable to products having a water content between 0.01 % (m/m) and 0.4 % (m/m). Bases on the measurement of the conductance of anhydrous products using a dip cell electrode. Determination of the corresponding content by means of a calibration graph making a correction for the non-volatile acid content. Has also been approved by the IUPAC.

Life cycle

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WITHDRAWN
ISO 3700:1980
95.99 Withdrawal of Standard
May 27, 2002