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ISO 1994:1976

Hard coal — Determination of oxygen content

Dec 1, 1976
95.99   Withdrawal of Standard   Sep 28, 2004

General information

95.99     Sep 28, 2004

ISO

ISO/TC 27/SC 5

International Standard

73.040  

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Scope

The sample is dried at 105 to 110 °C in a stream of nitrogen and then pyrolysed under conditions in which the organic matter leaves an oxygen-free char. The volatile products, containing the organically bound oxygen and also water and carbon dioxide from any mineral matter, are decomposed with either pure carbon or platinized carbon to convert the oxygen to carbon monoxide. The carbon monoxide is oxidized to carbon dioxide and determined by a titrimetric or a gravimetric procedure.

Life cycle

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WITHDRAWN
ISO 1994:1976
95.99 Withdrawal of Standard
Sep 28, 2004