1.1 本试验方法涵盖了对煤炭利用过程中燃烧残留物中常见的主要和次要元素的分析。 1.2 使用测试方法 D5016 用于测定硫。 1.3 单位- 以国际单位制表示的数值应视为标准值。括号中给出的值仅供参考，不被视为标准值。 1.4 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。 1.5 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 煤中灰分的成分分析通常有助于全面描述煤的质量。灰烬成分的知识也有助于预测燃烧室中灰烬和炉渣的行为。煤炭燃烧副产物的利用有时取决于煤灰的化学成分。 5.2 请注意，实验室制备的煤灰的化学成分可能并不完全代表煤中矿物质的成分，也不代表商业规模燃煤产生的飞灰和炉渣的成分。

1.1 This test method covers the analysis of the commonly determined major and minor elements in combustion residues from coal utilization processes. 1.2 Use Test Method D5016 for determination of sulfur. 1.3 Units— The values stated in SI units are to be regarded as standard. The values given in parentheses are provided for information only and are not considered standard. 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.5 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 A compositional analysis of the ash in coal is often useful in the total description of the quality of the coal. Knowledge of ash composition is also useful in predicting the behavior of ashes and slags in combustion chambers. Utilization of the ash by-products of coal combustion sometimes depends on the chemical composition of the ash. 5.2 Note that the chemical composition of laboratory-prepared coal ash may not exactly represent the composition of mineral matter in the coal or the composition of fly ash and slag resulting from commercial-scale burning of the coal.