1.1 本规范涵盖适用于环境用途的石灰和石灰石产品以及副产品碱性材料，如所示 表1 . CQ公司 = 生石灰，高钙 DQ公司 = 生石灰，白云质 MQ = 生石灰、氧化镁 中国 = 熟石灰，高钙 DH公司 = 熟石灰，白云质 MH公司 = 熟石灰、氧化镁 氯 = 石灰石，高钙 DL = 石灰岩、白云质 毫升 = 石灰石、镁质 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 买方应指定下列用途: 表1 ，并可指定以下列出的一个或多个型号名称 表1 . 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。

1.1 This specification covers lime and limestone products and by-product alkaline materials suitable for environmental uses as shown in Table 1 . CQ = Quicklime, high-calcium DQ = Quicklime, dolomitic MQ = Quicklime, magnesian CH = Hydrated lime, high-calcium DH = Hydrated lime, dolomitic MH = Hydrated lime, magnesian CL = Limestone, high-calcium DL = Limestone, dolomitic ML = Limestone, magnesian 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 The buyer shall designate the use, as listed in Table 1 , and may specify one or more of the type designations listed below Table 1 . 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.