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ISO 589:1981

Hard coal — Determination of total moisture

Oct 1, 1981
95.99   Withdrawal of Standard   Nov 10, 2003

General information

95.99     Nov 10, 2003

ISO

ISO/TC 27/SC 5

International Standard

73.040  

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Scope

For all hard coals two methods are specified: A) The sample is heated in a flask under reflux conditions with boiling toluene. The moisture from the coal is entrained by the toluene vapour and carried to a condenser fitted with a graduated receiver. The water then separates in the receiver, to from the lower layer, whilst the excess toluene is returned to the destillation flask by means of an overflow. The moisture in the coal is calculated from the volume of water collected. B) The sample is dried in an oven at a temperature of 105 to 110 °C in a current of nitrogen and the moisture calculated from the loss in mass.

Life cycle

NOW

WITHDRAWN
ISO 589:1981
95.99 Withdrawal of Standard
Nov 10, 2003

REVISED BY

ABANDON
ISO/DIS 589

WITHDRAWN
ISO 589:2003

National adoptions

SRPS B.H8.335:1989  
ISS

Hard coal — Determination of total moisture

95.99   Withdrawal of Standard

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