1.1 本试验方法包括测定液氯中的水分和残留物。基于150 mL样品的检测下限为10μg/g。 1.2 本试验方法描述了从钢瓶中取样液氯的操作和特殊装置。其他商业设施（如罐车、驳船和储罐）的采样需要特殊的操作技术，以填充样品瓶进行测试。如果条件和设施良好，分析仪器可以直接连接到这些较大的储存和运输装置上- 可以完成现场测试。 1.3 分析方法为经验法和重量法。适用于商业级液氯（浓缩气体产品）残留量和含水量的测定。 1.4 残留物是指在试验条件下样品挥发后留在样品瓶中的物质。水分是指在试验条件下，样品残渣烧瓶挥发和吹扫过程中产生的挥发性物质，并被吸收管中的干燥剂吸收。 在吹扫过程中，一些挥发性氯化烃也可能从样品残渣烧瓶中析出并被吸收，从而产生表观水分分析值。 1.5 如果对样品测量和计算进行了适当的修改，则本试验方法仅可用于测定气态氯的含水量。 1.6 有关毒性、急救程序和安全预防措施的详细信息，请查看当前的安全数据表（SDS）。 1.7 以英寸-磅为单位的数值应视为标准值。 本标准不包括其他计量单位。 1.8 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。 具体危害说明见第节 7. . 1.9 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 本试验方法用于测定液氯中的水分和残留物。这些杂质的浓度水平是液氯许多商业用途中的重要因素。

1.1 This test method covers the determination of moisture and residue in liquid chlorine. Lower limits of detection of 10 μg/g based on a 150-mL sample are achievable. 1.2 This test method describes operations and special apparatus for sampling liquid chlorine from cylinders. Sampling other commercial facilities such as tank cars, barges, and storage tanks require special techniques of manipulation in filling sample cylinders for testing. If conditions and facilities are favorable, the analysis apparatus may be connected directly to these larger storage and transportation units and on-the-spot tests may be completed. 1.3 The analytical methods are empirical and are gravimetric. They are applicable to the determination of the residue and moisture content of commercial grades of liquid chlorine (condensed gaseous product). 1.4 Residue is defined as being those substances which remain in the sample flask after sample volatilization under the conditions of the test. Moisture is defined as the volatile substances evolved during volatilization and purging of the sample-residue flask and absorbed on the desiccant contained in the absorption tubes under the conditions of the test. Some of the volatile chlorinated hydrocarbons may also be evolved from the sample residue flask during purge and absorbed, thus contributing to the apparent moisture analysis value. 1.5 This test method may be used for determining the moisture content only of gaseous chlorine if suitable and appropriate modifications are made for sample measurement and calculation. 1.6 Review the current Safety Data Sheet (SDS) for detailed information concerning toxicity, first aid procedures, and safety precautions. 1.7 The values stated in inch-pound units are to be regarded as the standard. No other units of measurement are included in this standard. 1.8 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. Specific hazards statements are given in Section 7 . 1.9 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 provides for the determination of moisture and residue in liquid chlorine. The concentration levels of these impurities are important factors in many commercial uses of liquid chlorine.