1.1 这些试验方法包括通过X射线荧光光谱法（XRF）测定汽油添加剂中的铅和锰含量。这些试验方法包括在以下浓度范围内测定汽油中的总铅含量: 0.010 g Pb/US gal至5.0 g 铅/美国加仑 0.012 g Pb/英国 gal至6.0 g Pb/英国 女孩 0.0026 g 铅/升至1.32 g 铅/升 以及25%浓度范围内的航空汽油中的总锰含量 毫克锰/升至250 毫克锰/升。 1.1.1 试验方法A和B的范围为0.10 g Pb/US gal至5.0 g Pb/US gal.试验方法C的范围为0.010 g Pb/US gal至0.50 g Pb/US 女孩。 1.1.2 这些方法A、B和C适用于含有铅添加剂的汽油。这些试验方法补偿了汽油成分的正常变化，并且与烷基铅类型无关。 1.1.3 试验方法D适用于含锰添加剂的航空汽油。 1.2 试验方法A （以前采用撤回试验方法 D2599 )-部分 5 – 10 . 试验方法B （以前采用撤回试验方法 D2599 )-部分 11 – 16 . 试验方法C （以前采用撤回试验方法 D3229 )-部分 17 – 23 . 试验方法D -截面图 24 – 29 . 1.3 SI中规定的值应视为标准值。出于报告目的，以克/美国加仑为单位的数值是美国的首选单位。请注意，在其他国家，可以首选其他单位。 1.4 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。 有关具体的危险说明，请参阅第节 5. , 6. , 11 和 18 . 1.5 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====== 4.1 这些试验方法测定汽油中铅的浓度（来自烷基添加）。这些烷基添加剂提高了抗爆性能。 4.2 试验方法C用于确保符合无铅汽油联邦法规（40 CFR第80部分）的要求。 4.3 试验方法D用于测定航空汽油中锰的浓度。

1.1 These test methods cover the determination of lead and manganese gasoline additives content by X-Ray Fluorescence Spectroscopy (XRF). These test methods cover the determination of the total lead content of a gasoline within the following concentration ranges: 0.010 g Pb/US gal to 5.0 g Pb/US gal 0.012 g Pb/UK gal to 6.0 g Pb/UK gal 0.0026 g Pb/L to 1.32 g Pb/L and total manganese content of aviation gasoline within the concentration range of 25 mg Mn/L to 250 mg Mn/L. 1.1.1 Test Methods A and B cover the range of 0.10 g Pb/US gal to 5.0 g Pb/US gal. Test Method C covers the range of 0.010 g Pb/US gal to 0.50 g Pb/US gal. 1.1.2 These Methods A, B, and C are applicable to gasoline containing lead additives. These test methods compensate for normal variation in gasoline composition and are independent of lead alkyl type. 1.1.3 Test Method D is applicable to aviation gasoline containing manganese additives. 1.2 Test Method A (formerly in withdrawn Test Method D2599 )—Sections 5 – 10 . Test Method B (formerly in withdrawn Test Method D2599 )—Sections 11 – 16 . Test Method C (formerly in withdrawn Test Method D3229 )—Sections 17 – 23 . Test Method D —Sections 24 – 29 . 1.3 The values stated in SI are to be regarded as the standard. For reporting purposes the values stated in grams per U.S. gallon are the preferred units in the United States. Note that in other countries, other units can be preferred. 1.4 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. For specific hazard statements, see Sections 5 , 6 , 11 , and 18 . 1.5 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 ====== 4.1 These test methods determine the concentration of lead (from alkyl addition) in gasoline. These alkyl additives improve the antiknock properties. 4.2 Test Method C is used to ensure compliance of trace lead as required by federal regulations for lead-free gasoline (40 CFR Part 80). 4.3 Test Method D is used to determine the concentration of manganese in aviation gasoline.