1.1 本试验方法涵盖了天然气管道中二氧化碳的快速简单现场测定。可用的检测管提供的总测量范围为100 ppm（百万分之一）到60 ppm % 按体积计算，尽管大多数应用程序将处于该范围的低端（即低于5 %). 至少有一家制造商提供了用于测量10到100的特殊套件 % 一氧化碳 2. ，但正常的100 未使用cc手动泵。看见 注1 . 注1: 高量程二氧化碳检测管的测量范围以CO百分比（%）为单位 2. 低量程管的单位为百万分之一（ppm）。要将百分比转换为ppm，请乘以10 000 (1 % = 10 000 ppm）。 1.2 单位- 以国际单位制表示的数值视为标准值。括号中的英寸-磅单位仅供参考。 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、健康和环境实践，并确定监管限制的适用性。 1.4 本国际标准是根据世界贸易组织技术性贸易壁垒（TBT）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》中确立的国际公认标准化原则制定的。 ====意义和用途====== 5.1 由于天然气质量规范、二氧化碳对管道材料的腐蚀性以及二氧化碳对利用设备的影响，天然气中二氧化碳的测量非常重要。 5.2 该试验方法提供了廉价的二氧化碳现场筛选。该系统的设计使非技术人员只需经过最少的适当培训即可使用。

1.1 This test method covers a rapid and simple field determination of carbon dioxide in natural gas pipelines. Available detector tubes provide a total measuring range of 100 ppm (parts per million) up to 60 % by volume, although the majority of applications will be on the lower end of this range (that is, under 5 %). At least one manufacturer provides a special kit for measurements from 10 to 100 % CO 2 , but the normal 100 cc hand pump is not used. See Note 1 . Note 1: High-range carbon dioxide detector tubes will have measuring ranges in percent (%) CO 2 , and low-range tubes will be in parts per million (ppm). To convert percent to ppm, multiply by 10 000 (1 % = 10 000 ppm). 1.2 Units— The values stated in SI units are regarded as standard. The inch-pound units in parentheses are for information only. 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. 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 The measurement of carbon dioxide in natural gas is important, because of gas quality specifications, the corrosive nature of carbon dioxide on pipeline materials, and the affects of carbon dioxide on utilization equipment. 5.2 This test method provides inexpensive field screening of carbon dioxide. The system design is such that it may be used by nontechnical personnel with a minimum of proper training.