1.1 本试验方法适用于测定煤中的硫酸盐硫和黄铁矿硫，并通过差值计算有机硫。本试验方法不适用于焦炭或其他含碳材料。 1.2 以国际单位制表示的数值应视为标准值。非国际单位制（如提供）被视为信息性单位，并包含在括号内 1.3 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的用户有责任在使用前制定适当的安全、健康和环境实践，并确定监管限制的适用性。 1.4 本国际标准是根据世界贸易组织技术性贸易壁垒（TBT）委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认标准化原则制定的。 ====意义和用途====== 5.1 本试验方法规定将煤伴生硫分离为两种常见形式:黄铁矿和硫酸盐。有机硫通过差值计算。通过试验方法获得的结果可用于许多方面，包括评估旨在降低煤硫水平的选煤和加工操作。

1.1 This test method applies to the determination of sulfate sulfur and pyritic sulfur in coal and calculates organic sulfur by difference. This test method is not applicable to coke or other carbonaceous materials. 1.2 The values stated in SI units are to be regarded as standard. Non-SI units, if provided, are considered informational and are contained within parentheses 1.3 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. ====== Significance And Use ====== 5.1 This test method provides for a separation of coal-associated sulfur into two commonly recognized forms: pyritic and sulfate. Organic sulfur is calculated by difference. Results obtained by the test method are used to serve a number of interests, including the evaluation of coal preparation and processing operations designed to reduce coal sulfur levels.