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ISO 352:1981

Solid mineral fuels — Determination of chlorine — High temperature combustion method

Apr 1, 1981
95.99 Withdrawal of Standard   Sep 21, 2005

General information

95.99     Sep 21, 2005

ISO

ISO/TC 27/SC 5

International Standard

75.160.10  

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Scope

The sample is burnt in a stream of oxygen, in a tube furnace at a temperature of 1250 or 1350 °C, and the acid gases (chlorine and oxides of sulphur) formed are absorbed in hydrogen peroxide. The acid solution is neutralized with sodium tetraborate and the sodium chlorine formed is converted by reaction with mercury(II) oxycyanide to sodium hydroxide which is determined volumetrically.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO/R 926:1969

NOW

WITHDRAWN
ISO 352:1981
95.99 Withdrawal of Standard
Sep 21, 2005