1.1 本试验方法涵盖了低合金钢的以下元素的波长色散X射线荧光分析: 要素 质量分数 范围，% 钙 0.001至0.007 铬 0.04至2.5 钴 0.03至0.2 铜 0.03至0.6 锰 0.04至2.5 钼 0.005至1.5 镍 0.04至3.0 铌 0.002至0.1 磷 0.010至0.08 硅 0.06至1.5 硫黄 0.009至0.1 钒 0.012至0.6 1.1.1 除非注意到例外情况，否则可以通过使用合适的参考材料和测量条件来扩展质量分数范围，并包括额外的元素。与公布范围的偏差必须通过实验手段进行验证。 请参阅指南 2007年 有关验证选项的信息。 1.2 国际单位制（SI）中规定的数值应视为标准值。括号中给出的值是对其他单位的数学转换，仅供参考，因为它们可能用于较旧的软件和实验室程序。 1.3 本标准并不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建立适当的安全、健康和环境实践，并确定监管限制的适用性。 第节给出了具体的预防说明 10 . 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《国际标准、指南和建议制定原则决定》中确立的国际公认标准化原则制定的。 =====意义和用途====== 5.1 该测试方法适用于制造控制和验证产品是否符合规范。该测试方法提供了快速、多元素测定，具有足够的精度，以确保产品质量并将生产延迟降至最低。分析性能数据可用作基准，以确定是否类似X- 射线光谱仪提供了同等的精度和准确度，或者如果特定X射线光谱仪的性能发生了变化。 5.2 有时向钢中添加钙以影响夹杂物形状，从而增强钢的某些机械性能。该试验方法可用于测定处理后钢中的残余钙。 5.2.1 由于钙主要存在于夹杂物中，因此该试验方法的精度取决于钢中含钙夹杂物的分布。在新制备的表面上测定的变化将给出这些夹杂物分布的一些指示。

1.1 This test method covers the wavelength dispersive X-ray fluorescence analysis of low-alloy steels for the following elements: Element Mass Fraction Range, % Calcium 0.001 to 0.007 Chromium 0.04 to 2.5 Cobalt 0.03 to 0.2 Copper 0.03 to 0.6 Manganese 0.04 to 2.5 Molybdenum 0.005 to 1.5 Nickel 0.04 to 3.0 Niobium 0.002 to 0.1 Phosphorus 0.010 to 0.08 Silicon 0.06 to 1.5 Sulfur 0.009 to 0.1 Vanadium 0.012 to 0.6 1.1.1 Unless exceptions are noted, mass fraction ranges can be extended and additional elements can be included by the use of suitable reference materials and measurement conditions. Deviations from the published scope must be validated by experimental means. See Guide E2857 for information on validation options. 1.2 The values stated in the International System of Units (SI) are to be regarded as standard. The values given in parentheses are mathematical conversions to other units that are provided for information only, because they may be used in older software and laboratory procedures. 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. Specific precautionary statements are given in Section 10 . 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 This test method is suitable for manufacturing control and for verifying that a product meets specifications. This test method provides rapid, multi-element determinations with sufficient accuracy to ensure product quality and to minimize production delays. The analytical performance data may be used as a benchmark to determine if similar X-ray spectrometers provide equivalent precision and accuracy, or if the performance of a particular X-ray spectrometer has changed. 5.2 Calcium is sometimes added to steel to affect inclusion shape which enhances certain mechanical properties of steel. This test method is useful for determining the residual calcium in the steel after such treatment. 5.2.1 Because calcium occurs primarily in inclusions, the precision of this test method is a function of the distribution of the calcium-bearing inclusions in the steel. The variation of determinations on freshly prepared surfaces will give some indication of the distribution of these inclusions.