1.1 本试验方法包括液体和固体合成洗涤剂中柠檬酸盐的酶法测定。该测试方法适用于大多数含有柠檬酸盐的洗涤剂，其最低浓度约为5% ( 1- 8 ). 2 1.2 以SI单位表示的值将被视为标准值。本标准不包括其他计量单位。 1.3 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。 材料安全数据表可用于试剂和材料。使用前检查它们是否有危险。 1.4 本国际标准是根据关于制定国际标准的原则的决定中确立的国际公认的标准化原则制定的以及世界贸易组织技术性贸易壁垒委员会发布的建议。

1.1 This test method covers the enzymatic determination of citrate in both liquid and solid synthetic detergents. The test method is applicable to most detergents containing citrate at a minimum concentration of approximately 5 % ( 1- 8 ). 2 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. Material Safety Data Sheets are available for reagents and materials. Review them for hazards prior to usage. 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.