1.1 本试验方法涵盖了通过卡尔费休库仑滴定法测定2-巯基苯并噻唑亚砜酰胺促进剂中水分的程序。 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、健康和环境实践，并确定监管限制的适用性。 1.4 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。 ====意义和用途====== 4.1 本试验方法旨在测定各种橡胶促进剂的含水量。由于2-巯基苯并噻唑亚砜酰胺水解不稳定，残留水含量是一个重要特征。

1.1 This test method covers a procedure for the determination of water in 2-mercaptobenzothiazole sulfenamide accelerators by a Karl Fischer coulometric titration. 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. 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. ====== Significance And Use ====== 4.1 This test method is designed to determine the water content of various rubber accelerators. Since 2-mercaptobenzothiazole sulfenamide is hydrolytically unstable, the residual water content is an important characteristic.