1.1 本试验方法涵盖了用于确定冶金焦炭中焦炭碳形态和相关可识别煤和工艺衍生结构成分的类型和数量（以体积百分比计）的设备和程序。本试验方法不包括焦炭结构成分，如焦炭孔隙、焦炭壁尺寸或其他结构关联。 1.2 以国际单位制表示的数值应视为标准值。本标准不包括其他计量单位。 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 测定焦炭中纹理成分的体积百分比有助于表征焦炭的光学性质，因为这与利用率有关。具体而言，该技术已被用于帮助确定煤炭混合比例，并识别焦炭中存在的特征，这些特征可能导致焦炭质量或生产问题，如焦炭强度降低或难以从商业焦炉中除去焦炭，或两者兼而有之。 焦炭结构的研究也有助于更好地理解焦炭的反应性，以及煤岩学与其转化为焦炭之间的关系。 5. 5.2 本试验方法用于科学和工业研究，但不用于符合性或仲裁试验。

1.1 This test method covers the equipment and procedures used for determining the types and amounts of coke carbon forms and associated recognizable coal- and process-derived textural components in metallurgical coke in terms of volume percent. This test method does not include coke structural components such as coke pores, coke wall dimensions, or other structural associations. 1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 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 The determination of the volume percent of the textural components in coke is useful to characterize the optical properties of coke as it relates to utilization. Specifically, the technique has been used as an aid in determining coal blend proportions, and recognition of features present in the coke that can be responsible for coke quality or production problems such as reduced coke strength or difficulty in removing coke from commercial coke ovens, or both. The study of coke textures is also useful in promoting a better understanding of coke reactivity, and the relationship between coal petrography and its conversion to coke. 5 5.2 This test method is used in scientific and industrial research, but not for compliance or referee tests.