ISO 589:1981
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
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Hard coal Determination of total moisture
Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users
03-09-2018
French, English
01-10-1981
Important note : Users cannot be edited or removed once added to your Multi user PDF.
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.
| DocumentType |
Standard
|
| Pages |
6
|
| PublisherName |
International Organization for Standardization
|
| Status |
Withdrawn
|
| SupersededBy |
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