ISO 331-1983 标准详情
- 标准号:ISO 331-1983
- 中文标题:煤;分析样品中的水汽测定;直接重量分析法
- 英文标题:coal; determination of moisture in the analysis sample; direct gravimetric method
- 标准类别:国际标准化组织标准ISO
- 发布日期:1983-09-15
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
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