1.1本试验方法包括测定高纯度乙烯中的二氧化碳、甲烷、乙烷、乙炔和其他碳氢化合物。根据试验方法D2504测定氢、氮、氧和一氧化碳。乙烯百分比通过从100中减去碳氢化合物和非碳氢化合物杂质的百分比之和获得。该方法适用于1至500 ppm体积（ppmV）的杂质范围。 1.2 本标准可能涉及危险材料、操作和设备。本标准并非旨在解决与其使用相关的所有安全问题。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。 有关某些特定的危险说明，请参阅第6节。 1.3以可接受的公制单位表示的值应视为标准。括号中的值仅供参考。 ====意义和用途====== 某些制造过程需要高纯度乙烯作为原料，微量二氧化碳和一些碳氢化合物的存在可能会产生有害影响。该方法适用于设定规格、用作内部质量控制工具以及用于开发或研究工作。

1.1 This test method covers the determination of carbon dioxide, methane, ethane, acetylene, and other hydrocarbons in high-purity ethylene. Hydrogen, nitrogen, oxygen, and carbon monoxide are determined in accordance with Test Method D2504. The percent ethylene is obtained by subtracting the sum of the percentages of the hydrocarbon and nonhydrocarbon impurities from 100. The method is applicable over the range of impurities from 1 to 500 parts per million volume (ppmV). 1.2 This standard may involve hazardous materials, operations, and equipment. This standard does not purport to address all of the safety problems 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. For some specific hazard statements, see Section 6. 1.3 The values stated in acceptable metric units are to be regarded as the standard. The values in parentheses are for information only. ====== Significance And Use ====== High-purity ethylene is required as a feedstock for some manufacturing processes, and the presence of trace amounts of carbon dioxide and some hydrocarbons can have deleterious effects. This method is suitable for setting specifications, for use as an internal quality control tool and for use in development or research work.