ISO 352:1981

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

95.99 Withdrawal of Standard 21 sht 2005

General information

Current stage: 95.99 Effective date: 21 sht 2005

Originator: ISO

Owner: ISO/TC 27/SC 5

Type: International Standard

ICS: 75.160.10

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

Revises
ISO/R 926:1969

NOW

WITHDRAWN
ISO 352:1981
95.99 Withdrawal of Standard
21 sht 2005

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