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现行 ASTM D4301-05(2019)
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Standard Test Method for Total Chlorine in Epoxy Resins and Compounds 环氧树脂和化合物中总氯含量的标准试验方法
发布日期: 2019-10-01
1.1 本试验方法描述了测定环氧树脂和缩水甘油醚中总氯的程序。 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。有关具体的危险说明,请参阅第节 8. . 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====== 5.1 环氧树脂中残留的氯对最终产品的性能有害。该试验方法适用于氯含量在50 ppm到35 ppm之间的树脂或醚 % 按重量计算。 其他卤素化合物与试剂反应,但通过最终电位滴定法与氯区分开来。环氧树脂和其他官能团将消耗试剂,但不会影响结果。
1.1 This test method describes a procedure for the determination of total chlorine in epoxy resins and glycidyl ethers. 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. For specific hazard statements, see Section 8 . 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 ====== 5.1 The presence of residual chlorine in epoxy resins is deleterious to final product properties. This test method has been found to be applicable to resins or ethers with chlorine contents ranging from 50 ppm to 35 % by weight. Other halogen compounds react with the reagent but are distinguished from chlorine by the final potentiometric titration. Epoxy and other functional groups will consume reagent but do not affect the results.
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归口单位: D01.33
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