ASTM D5142-1990(1998)
使用自动仪器法对煤和焦炭的分析试样进行煤质分析的标准试验方法
Standard Test Methods for Proximate Analysis of the Analysis Sample of Coal and Coke by Instrumental Procedures
非常抱歉，我们暂时无法提供预览，您可以试试： 免费下载 ASTM D5142-1990(1998) 前三页，或者稍后再访问。
点击下载后，生成下载文件时间比较长，请耐心等待......
- 标准号
- ASTM D5142-1990(1998)
- 发布日期
- 1990年
- 实施日期
- 废止日期
- 无
- 国际标准分类号
- 75.160.10 (Solid fuels)
- 发布单位
- US-ASTM
- 适用范围
1.1 These instrumental test methods cover the determination of moisture, volatile matter, and ash, and the calculation of fixed carbon in the analysis of coal and coke samples prepared in accordance with Method D2013 and Practice D346. Results obtained through the use of the instrumental tests have been shown to differ from those obtained with Test Methods D3173, D3174, and D3175 on some coals and cokes. Where a relative bias between the instrumental methods and Test Methods D3173, D3174, and D3175 for proximate analysis of coal and coke are shown to exist, the instrumental results shall be corrected or the instrument calibrated using samples of known proximate analysis. Test Methods D3173, D3174, and D3175 shall be considered the referee test methods. The instrumental test methods are not applicable to thermogravimetric analyzers utilizing microgram size samples.
1.2 The moisture value determined is used for calculating other analytical results to a dry basis. When used in conjunction with the air dry loss moisture, as determined in accordance with Method D2013, Test Method D3302, or Practice D346, the calculated total moisture can be used to convert dry basis analytical results to the as-received basis.
1.3 The result of the ash determinations can be applied in the ultimate analysis, Practice D3176.
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.