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CEN
EN ISO 10101-3:1998

EN ISO 10101-3:1998

Withdrawn

Withdrawn

A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.

Natural gas - Determination of water by the Karl Fischer method - Part 3: Coulometric procedure (ISO 10101-3:1993)

Withdrawn date

30-09-1998

Published date

18-03-1998

Publisher

Comite Europeen de Normalisation

Committees responsible
National foreword
1 Scope
2 Normative references
3 Principle
4 Reagents
5 Apparatus
6 Sampling
7 Procedure
8 Expression of results
9 Test report
Annex
ZA (normative) Normative references to international
publications with their relevant European publications

The principle of the method specified is passing a measured volume of gas through the titration cell, where the water is absorbed by the anodic solution. The iodine required for the determination of water by the Karl Fischer reaction is generated coulometrically from iodide. The quantity of electricity is directly proportional to the mass of iodine generated and hence to the mass of water determined. Applies to natural gas and other gases which do not react with Karl Fischer reagents. Is applicable to water concentrations between 5 mg/cm^3 and 5000 mg/cm^3.

Committee
CEN/TC 238
DocumentType
Standard
PublisherName
Comite Europeen de Normalisation
Status
Withdrawn

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ISO 10101-1:1993 Natural gas — Determination of water by the Karl Fischer method — Part 1: Introduction
ISO 5725:1986 Precision of test methods Determination of repeatability and reproducibility for a standard test method by inter-laboratory tests

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