1.1 本试验方法涵盖了测定液体和粉末洗涤剂中柠檬酸盐的电位滴定程序。 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和健康实践，并确定监管限制的适用性。 试剂和材料有材料安全数据表。使用前检查其危险性。第节给出了具体的安全预防措施 8. . ====意义和用途====== 4.1 本试验方法适用于研究、开发和制造控制，以监测粉末和液体洗涤剂中柠檬酸盐（一种螯合剂）的含量。 4.2 准确测定螯合剂对评估洗涤剂产品的成本和性能至关重要。

1.1 This test method covers a potentiometric titration procedure for the determination of citrate in liquid and powder detergents. 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 and health 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. Specific safety precautions are given in Section 8 . ====== Significance And Use ====== 4.1 This test method is suitable in research, development, and manufacturing control to monitor the level of citrate, a sequestering agent, in powder and liquid detergents. 4.2 Accurate determination of sequestering agent is important in evaluating cost and performance of detergent products.