1.1这些试验方法包括测定卤化有机溶剂和外加剂中的不挥发物。 1.2涵盖以下五种测试方法: 1.2.1 试验方法A -对于非挥发性物质含量低于50 ppm的卤化有机溶剂或混合物；或者要求精度大于±10 ppm。 1.2.2 试验方法B -对于非挥发性物质含量超过50 ppm或精度达到±0.001%（10 ppm）的卤化有机溶剂或混合物。 1.2.3 试验方法C -对于低沸点卤化有机溶剂或其混合物（例如，二氯甲烷、三氯三氟乙烷），在用蒸汽蒸发至干燥时可能过热并导致颠簸。可以达到±10 ppm以上的精度。 1.2.4 试验方法D -用于快速测量卤化有机溶剂及其外加剂中的不挥发物，要求精度优于±10 ppm。 1. 2.5 试验方法E -对于卤化有机溶剂或外加剂，并且要求精度优于±10 ppm。 1.3以国际单位制表示的数值应视为标准。 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和健康实践，并确定监管限制的适用性。

1.1 These test methods cover the determination of nonvolatile matter in halogenated organic solvents and admixtures. 1.2 Five test methods are covered, as follows: 1.2.1 Test Method A —For halogenated organic solvents or admixtures having less than 50 ppm nonvolatile matter; or where precision greater than ±10 ppm is required. 1.2.2 Test Method B —For halogenated organic solvents or admixtures having more than 50 ppm nonvolatile matter or where precision of ±0.001 % (10 ppm) is satisfactory. 1.2.3 Test Method C —For low-boiling halogenated organic solvents or their admixtures (for example, methylene chloride, trichlorotrifluoroethane) that may superheat and cause bumping while evaporating to dryness with steam. A precision of greater than ± 10 ppm can be attained. 1.2.4 Test Method D —For rapid measurement of nonvolatile matter in halogenated organic solvents and their admistures and where precision better then ±10 ppm is required. 1.2.5 Test Method E —For halogenated organic solvents or admixtures and where precision better than ±10 ppm is required. 1.3 The values stated in SI units are to be regarded as the standard. 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 and health practices and determine the applicability of regulatory limitations prior to use.