ASTM D720/D720M-2015
煤的自由膨胀指数的标准试验方法
Standard Test Method for Free-Swelling Index of Coal
非常抱歉，我们暂时无法提供预览，您可以试试： 免费下载 ASTM D720/D720M-2015 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 D720/D720M-2015
- 发布日期
- 2015年
- 实施日期
- 废止日期
- 无
- 国际标准分类号
- 73.040
- 发布单位
- US-ASTM
- 适用范围
3.1x00a0;This test method, in addition to indicating the caking properties of a coal when burned as a fuel, can be used to give a broad indication of the degree of oxidation of a coal.
1.1x00a0;This test method2 is a small-scale test for obtaining information regarding the free-swelling properties of a coal. The results may be used as an indication of the caking characteristic of the coal when burned as a fuel. This test is not recommended as a method for the determination of expansion of coals in coke ovens.
1.2x00a0;Warningx2014;Breathing of asbestos dust is hazardous. Asbestos and asbestos products present demonstrated health risks for users and for those with whom they come into contact. In addition to other precautions, when working with asbestos-cement products, minimize the dust that results. For information on the safe use of chrysoltile asbestos, refer to, Safe Use of Chrysotile Asbestos: A Manual on Preventive and Control Measures.3
1.3x00a0;The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.
1.4x00a0;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.