ISO 331:1983
Coal — Determination of moisture in the analysis sample — Direct gravimetric method
Coal — Determination of moisture in the analysis sample — Direct gravimetric method
- Статус документа:
- Отменён
- Формат:
- Электронный (PDF)
- Количество страниц:
- 3
- Дата публикации:
- 1 сентября 1983 г.
- Издание:
- ISO IS 331 edition 2 version 1
- ICS:
- 73.040
The sample of coal is heated at 105 to 110 °C in a stream of oxygen-free, dry nitrogen and the moisture driven off is collected in an absorption tube containing a desiccant. The increase in mass of the absorption tube (after deducting the result of a separate blank determination) is due to moisture in the sample of coal.
Технические детали
- Технический комитет
- ISO/TC 27/SC 5 - Methods of analysis
- SKU
- ISO 331:1983
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