1.1 本试验方法描述了用火花原子发射光谱法（Spark-AES）分析铝及其合金。待分析的铝样品可以是冷铸盘、铸件、箔、片、板、挤压件或一些其他锻造形式或形状的形式。本方法范围所涵盖的要素如下所列。 元素 测试质量分数范围 （重量%） 锑 0.001至0.003 砒霜 0.001至0.006 铍 0.0004至0.24 铋 0.03至0.6 硼 0.0006至0.009 钙 0.0002至0.04 铬 0.001至0.23 钴 0.4至1.60 铜 0.001至5.5 镓 0.02至0.11 铁 0.2至0.5 铅 0.04至0.6 锂 0.0003至2.1 镁 0.03至5.4 锰 0.001至1.2 镍 0.005至2.6 磷 0.003至0.017 硅 0.07至16 钠 0.003至0.02 锶 0.03至11.0 锡 0.03至21.0 钛 0.001至0.12 钒 0.002至0.022 锌 0.002至5.7 锆 0.001至0.12 附注1: 范围中给出的质量分数范围是通过选定参考物质的合作测试（ILS）确定的。每个元素所示的范围并不证明该元素的实际可用分析范围。可使用的分析范围可以基于单个仪器能力、所使用的特定元素波长的光谱特性以及适当参考材料的可用性而扩展得更高或更低。 警告- 汞（Hg）有意不包括在范围内。不建议通过火花-AES分析铝中的汞。由于存在强烈的铁干扰，使用该技术对汞的准确分析受到影响。由于这些干扰效应，汞的不准确报告可能会危及目前铝生产作为无汞工艺的指定。为了证明符合法定汞含量限值，建议使用能够进行最低报告限值为0.0001%或更低的分析的替代方法。合适的技术包括但不限于GD-MS、XRF、冷蒸气AA和ICP-MS。 1.2 本试验方法主要适用于实践中定义的冷铸盘的分析 E716 可以分析其他形式，条件是: (1) 它们足够大以防止过度加热， (2) 它们允许加工提供干净、平坦的表面，这在样本和火花架之间形成密封，并且 (3) 具有相似冶金条件和化学成分的参考材料是可用的。1.3 本标准并不旨在解决与其使用相关的所有安全性问题（如果有）。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法规限制的适用性。 具体的安全和健康声明见第节 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《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 铝及其合金的冶金性能高度依赖于化学成分。精确和准确的分析对于获得所需的性能、满足客户规格以及最大限度地减少因不合格材料造成的废料至关重要。 5.2 本试验方法适用于实践中定义的冷铸试样 E716 并且也可以应用于其他类型的样品，前提是合适的参考材料是可用的。此外，如实践中所述，可以使用适当的模具将其它样品形式熔化并浇铸成圆盘 E716 然而，一些元素（例如镁）容易形成氧化物，而其他元素（例如钠、锂、钙和锶）是挥发性的，并且在熔化过程中可能不同程度地损失。

1.1 This test method describes the analysis of aluminum and its alloys by spark-atomic emission spectrometry (Spark-AES). The aluminum specimen to be analyzed may be in the form of a chill cast disk, casting, foil, sheet, plate, extrusion, or some other wrought form or shape. The elements covered in the scope of this method are listed as follows. Element Tested Mass Fraction Range (Wt %) Antimony 0.001 to 0.003 Arsenic 0.001 to 0.006 Beryllium 0.0004 to 0.24 Bismuth 0.03 to 0.6 Boron 0.0006 to 0.009 Calcium 0.0002 to 0.04 Chromium 0.001 to 0.23 Cobalt 0.4 to 1.60 Copper 0.001 to 5.5 Gallium 0.02 to 0.11 Iron 0.2 to 0.5 Lead 0.04 to 0.6 Lithium 0.0003 to 2.1 Magnesium 0.03 to 5.4 Manganese 0.001 to 1.2 Nickel 0.005 to 2.6 Phosphorus 0.003 to 0.017 Silicon 0.07 to 16 Sodium 0.003 to 0.02 Strontium 0.03 to 11.0 Tin 0.03 to 21.0 Titanium 0.001 to 0.12 Vanadium 0.002 to 0.022 Zinc 0.002 to 5.7 Zirconium 0.001 to 0.12 Note 1: The mass fraction ranges given in the scope were established through cooperative testing (ILS) of selected reference materials. The range shown for each element does not demonstrate the actual usable analytical range for that element. The usable analytical range may be extended higher or lower based on individual instrument capability, spectral characteristics of the specific element wavelength being used, and the availability of appropriate reference materials. Warning— Mercury (Hg) is intentionally not included in the scope. Analysis of Hg in aluminum by Spark-AES is not recommended. Accurate analysis of Hg using this technique is compromised by the presence of an intense iron interference. Inaccurate reporting of Hg due to these interference effects can jeopardize the current designation of aluminum production as a mercury-free process. To demonstrate compliance with legislated Hg content limits, use of an alternate method capable of analysis with a minimum reporting limit of 0.0001% or lower is recommended. Suitable techniques include but are not limited to GD-MS, XRF, cold vapor AA, and ICP-MS. 1.2 This test method is suitable primarily for the analysis of chill cast disks as defined in Practices E716 . Other forms may be analyzed, provided that: (1) they are sufficiently massive to prevent undue heating, (2) they allow machining to provide a clean, flat surface, which creates a seal between the specimen and the spark stand, and (3) reference materials of a similar metallurgical condition and chemical composition are available. 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 safety and health 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 The metallurgical properties of aluminum and its alloys are highly dependent on chemical composition. Precise and accurate analyses are essential to obtaining desired properties, meeting customer specifications, and minimizing scrap due to off-grade material. 5.2 This test method is applicable to chill cast specimens as defined in Practices E716 and can also be applied to other types of samples provided that suitable reference materials are available. Also, other sample forms can be melted and cast into a disk, using an appropriate mold, as described in Practices E716 . However, some elements (for example, magnesium) readily form oxides, while others (for example, sodium, lithium, calcium, and strontium) are volatile, and may be lost to varying degrees during the melting process.