1.1 本试验方法涵盖了通过显微镜测量波特兰水泥熟料中相体积百分比的系统程序。 1.2 以SI单位表示的值应被视为标准。 1.3 本标准的正文是指提供解释材料的注释和脚注。这些注释和脚注（不包括表格和图表中的注释和脚注）不应被视为标准的要求。 1.4 本标准并不旨在解决与其使用相关的所有安全性问题（如果有）。本标准的使用者有责任在使用前建立适当的安全、健康和环境实践并确定法规限制的适用性。 1.5 本国际标准是根据世界贸易组织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的标准化原则制定的贸易技术壁垒委员会。 ======意义和用途====== 5.1 该试验方法提供了一种相对简单可靠的测定硅酸盐水泥熟料相丰度的微观手段（ 附注1 ).与计算的Bogue相组成相比，显微点计数提供了熟料相组成的直接测量（ 附注2 ). 附注1: 该测试方法使用反射光显微镜。相关方法如透射光显微镜、扫描电子显微镜和自动成像技术也可用于熟料分析，但目前不包括在该测试方法中。 附注2: 该测试方法允许直接测定波特兰水泥熟料中每个单独相的比例。该试验方法旨在提供一种替代方案，替代使用质量标准中的方程间接估算相位比例 C150/C150M （表1脚注C和表2脚注B）。 5.2 该测试方法假设操作者有资格操作反射光显微镜和所需附件，能够正确制备抛光切片和使用必要的蚀刻剂，并且能够正确识别组成相。 5.3 该测试方法可用作水泥制造中质量控制程序的一部分以及故障排除工具。熟料相的微观表征也可以帮助关联水泥性质和混凝土中的水泥性能，其程度是性质和性能是相组成的函数。

1.1 This test method covers a systematic procedure for measuring the percentage volume of the phases in portland cement clinker by microscopy. 1.2 The values stated in SI units are to be regarded as the standard. 1.3 The text of this standard refers to notes and footnotes that provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the 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 This test method provides a relatively simple and reliable microscopical means of measuring the phase abundance of portland cement clinker ( Note 1 ). Microscopical point counting provides a direct measure of the clinker phase composition in contrast to the calculated Bogue phase composition ( Note 2 ). Note 1: This test method utilizes a reflected light microscope. Related methods such as transmitted light microscopy, scanning electron microscopy, and automated imaging techniques may also be used for clinker analysis but are not presently included in this test method. Note 2: This test method allows direct determination of the proportion of each individual phase in portland cement clinker. This test method is intended to provide an alternative to the indirect estimation of phase proportion using the equations in Specification C150/C150M (footnote C in Table 1 and footnote B in Table 2). 5.2 This test method assumes the operator is qualified to operate a reflected light microscope and the required accessories, is able to correctly prepare polished sections and use necessary etchants, and is able to correctly identify the constituent phases. 5.3 This test method may be used as part of a quality control program in cement manufacturing as well as a troubleshooting tool. Microscopic characterization of clinker phases may also aid in correlating cement properties and cement performance in concrete, to the extent that properties and performance are a function of phase composition.