1.1本试验方法包括在下列条件下测定百万分体积（ppmv）范围内的氢、氮、氧和一氧化碳: C2 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。 1.3本标准无意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。有关某些特定的危险说明，请参见注释3、4和5。

1.1 This test method covers the determination of hydrogen, nitrogen, oxygen, and carbon monoxide in the parts per million volume (ppmv) range in C2 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 acceptable metric units are to be regarded as the standard. The values 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 Notes 3, 4, and 5.