1.1 该试验方法测定由乙烯（乙烯）和第二烯烃-1单体制备的共聚物的摩尔组成。该第二单体可以包括丙烯、丁烯-1、己烯-1、辛烯-1和4-甲基戊烯-1。 1.2 本试验方法的计算适用于含有EEXEE、EXXE、EXXE、EXXXE单元的产品，当然还有E等于乙烯、X等于烯烃-1的EEE单元。含有大量烯烃-1嵌段（如比XXX更长的嵌段）的共聚物不在本试验方法的范围内。 1.3 本标准并不旨在解决与其使用相关的所有安全问题（如果有的话）。 本标准的使用者有责任在使用前建立适当的安全、健康和环境实践，并确定监管限制的适用性。 见第节 8. 对于特定的危险声明。 注1: 目前还没有与该标准等效的ISO。 1.4 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====== 5.1 性能属性取决于短链分支的数量和类型。本试验方法允许测量乙烯与丙烯、丁烯-1、己烯-1、辛烯-1和4-甲基戊烯-1共聚物的这些分支。

1.1 This test method determines the molar composition of copolymers prepared from ethylene (ethene) and a second alkene-1 monomer. This second monomer can include propene, butene-1, hexene-1, octene-1, and 4-methylpentene-1. 1.2 Calculations of this test method are valid for products containing units EEXEE, EXEXE, EXXE, EXXXE, and of course EEE where E equals ethene and X equals alkene-1. Copolymers containing a considerable number of alkene-1 blocks (such as, longer blocks than XXX) are outside the scope of this test method. 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. See Section 8 for a specific hazard statement. Note 1: There is no known ISO equivalent to this standard. 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 Performance properties are dependent on the number and type of short chain branches. This test method permits measurement of these branches for ethylene copolymers with propylene, butene-1, hexene-1, octene-1, and 4-methylpentene-1.