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Standard Test Method for Determination of Elemental Sulfur in Natural Gas 天然气中元素硫测定的标准试验方法
发布日期: 2023-06-01
1.1 本试验方法主要用于测定天然气管道中的元素硫,但也可应用于其他气体燃料管道和应用,前提是用户已验证其适用性。元素硫的检测范围,报告为硫,为0.0018 mg/L至30 毫克/升。结果也可以以mg/kg或ppm为单位进行报告。 1.2 以国际单位制或英寸磅单位表示的数值应单独视为标准。每个系统中规定的值不一定是完全相等的;因此,为了确保符合标准,每个系统应独立使用,并且两个系统的值不得合并。 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)。本标准的使用者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 元素硫影响管道天然气的质量以及管道法兰、管件和阀门上的沉积物,从而影响其性能。天然气供应商和经销商要求采用标准化的测试方法来测量元素硫。一些政府监管机构也对测量元素硫感兴趣,因为这将为评估管道中元素硫对燃烧气体燃料产生的SOx排放量的贡献提供一种手段。 该方法与含硫气体实验室试验方法(如试验方法)配合使用 第4084页 , D4468 , 第5504天 和 第6228页 或在线方法,例如 天7165 或 天7166 可以为用户提供天然气或其他气体燃料的综合硫化合物概况。其他应用可能包括颗粒沉积物(例如柴油废气)中的元素硫。
1.1 This test method is primarily for the determination of elemental sulfur in natural gas pipelines, but it may be applied to other gaseous fuel pipelines and applications provided the user has validated its suitability for use. The detection range for elemental sulfur, reported as sulfur, is 0.0018 mg/L to 30 mg/L. The results may also be reported in units of mg/kg or ppm. 1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined. 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 Elemental sulfur impacts the quality of pipeline natural gas and deposits on pipeline flanges, fittings and valves, thereby impacting their performance. Natural gas suppliers and distributers require a standardized test method for measuring elemental sulfur. Some government regulators are also interested in measuring elemental sulfur since it would provide a means for assessing the contribution of elemental sulfur in pipelines to the SOx emission inventory from burning of gaseous fuels. Use of this method in concert with sulfur gas laboratory test methods such as Test Methods D4084 , D4468 , D5504 , and D6228 or on-line methods such as D7165 or D7166 can provide users with a comprehensive sulfur compound profile for natural gas or other gaseous fuels. Other applications may include elemental sulfur in particulate deposits such as diesel exhausts.
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归口单位: D03.06.02
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