1.1 本试验方法涵盖了C中羰基（酮和醛）的测定 4. 碳氢化合物。该试验方法在聚合级1,3-丁二烯上进行了试验。 1.2 此测试方法的适用范围为0 mg/kg至50 mg/kg羰基，以乙醛计算。 1.3 其他C 4. 除了聚合级1,3-丁二烯外，碳氢化合物及其混合物也可以使用相同的测试方法进行测试。然而，本试验方法的精度部分仅涵盖适用范围内的羰基化合物，如 1.2 ，如在聚合级1,3-丁二烯中发现的。 1.4 警告 -汞已被许多监管机构指定为一种可能导致严重医疗问题的危险物质。汞或其蒸汽已被证明对健康有害，对材料具有腐蚀性。处理汞和含汞产品时要小心。有关更多信息，请参阅适用的产品安全数据表（SDS）。销售汞或汞的潜力- 当地或国家法律禁止含有产品或同时含有产品。用户必须确定其所在地销售的合法性。 1.5 以国际单位制表示的数值应视为标准。本标准中不包括其他计量单位。 1.6 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的使用者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。 1.6.1 建议用户就本试验方法程序和相关活动的安全操作进行液化石油气安全培训。 1.7 本国际标准是根据世界贸易组织技术性贸易壁垒委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认的标准化原则制定的。 ====意义和用途====== 4.1 测定聚合级1，3-丁二烯的羰基含量是必要的，因为在一些聚合反应中，羰基的存在超过一定量会对聚合物性能或反应本身或两者产生有害影响。

1.1 This test method covers the determination of carbonyls (ketones and aldehydes) in C 4 hydrocarbons. This test method was tested on polymerization-grade 1,3-butadiene. 1.2 The applicable range for this test method is 0 mg/kg to 50 mg/kg carbonyls calculated as acetaldehyde. 1.3 Other C 4 hydrocarbons and their mixtures besides polymerization-grade 1,3-butadiene could be tested using this same test method. However, the precision section of this test method covers only carbonyls in applicable range as listed in 1.2 , as found in polymerization-grade 1,3-butadiene. 1.4 WARNING —Mercury has been designated by many regulatory agencies as a hazardous substance that can cause serious medical issues. Mercury, or its vapor, has been demonstrated to be hazardous to health and corrosive to materials. Use caution when handling mercury and mercury-containing products. See the applicable product Safety Data Sheet (SDS) for additional information. The potential exists that selling mercury or mercury-containing products, or both, is prohibited by local or national law. Users must determine legality of sales in their location. 1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.6 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. 1.6.1 The user is advised to obtain LPG safety training for the safe operation of this test method procedure and related activities. 1.7 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 The determination of the carbonyl content of polymerization-grade 1,3-butadiene is necessary, since in some polymerization reactions, the presence of carbonyls in excess over some specified amount can have a deleterious effect upon the polymer properties or the reaction itself, or both.