1.1 本规范涵盖由硅酸盐水泥、水和矿物骨料制成的空心和实心非承重混凝土砌块，包括或不包括其他材料。这些单元旨在用于非承重隔墙，但在某些条件下，它们可能适合用于地面以上的非承重外墙，这些外墙可有效抵御天气。 1.2 本标准的文本引用了提供解释性材料的注释和脚注。这些注释和脚注（不包括表和图中的注释和脚注）不应被视为本标准的要求。 1.3 以英寸磅为单位的数值应视为标准。括号中给出的值是国际单位制的数学转换，仅供参考，不被视为标准。 注1: 本规范涵盖的混凝土砌块由轻质或正常重量的骨料制成，或两者兼而有之。 注2: 当需要特定特征时，如密度分类、外观或粘结的表面纹理、光洁度、颜色、耐火性、绝缘性、声学性能或其他特殊特征，这些特性应由买方单独规定。然而，应就具有所需功能的单元的可用性咨询供应商。 1.4 本国际标准是根据世界贸易组织技术性贸易壁垒委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认的标准化原则制定的。

1.1 This specification covers hollow and solid nonloadbearing concrete masonry units made from portland cement, water, and mineral aggregates with or without the inclusion of other materials. These units are intended for use in nonloadbearing partitions, but under certain conditions they may be suitable for use in nonloadbearing exterior walls above grade where effectively protected from the weather. 1.2 The text of this standard references 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. 1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. Note 1: Concrete masonry units covered by this specification are made from lightweight or normal weight aggregates, or both. Note 2: When particular features are desired, such as density classification, surface texture for appearance or bond, finish, color, fire resistance, insulation, acoustical properties, or other special features, such properties should be specified separately by the purchaser. However, suppliers should be consulted as to the availability of units having the desired features. 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.