1.1本试验方法包括在C中测定百万分体积（ppmv）范围内的氢、氮、氧和一氧化碳 2. 和较轻的碳氢化合物产品。本试验方法应适用于除乙烯外的轻烃，但试验程序不包括它们。 1.2以国际单位制表示的数值应视为标准。括号中给出的值仅供参考。 1.3 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。 关于一些具体的危险说明，请参见附录A1。 ====意义和用途====== 在某些使用碳氢化合物产品作为原料的过程中，微量氢、氧和一氧化碳的存在可能会产生有害影响。 本测试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 hydrogen, nitrogen, oxygen, and carbon monoxide in the parts per million volume (ppmv) range in C 2 and lighter hydrocarbon products. This test method should be applicable to light hydrocarbons other than ethylene, but the test program did not include them. 1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. 1.3 This standard does not purport to address all of the safety problems, 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. For some specific hazard statements, see the Annex A1. ====== Significance And Use ====== The presence of trace amounts of hydrogen, oxygen, and carbon monoxide can have deleterious effects in certain processes using hydrocarbon products as feed stock. This test method is suitable for setting specifications, for use as an internal quality control tool and for use in development or research work.