1.1 这些试验方法涵盖了化学成分在以下范围内的钢、铁、镍和钴合金中碳、硫、氮和氧的测定: 元素 质量分数范围，% 铝 0.001至18.00 锑 0.002至0.03 砷 0.0005至0.10 铍 0.001至0.05 铋 0.001至0.50 硼 0.0005至1.00 镉 0.001至0.005 钙 0.001至0.05 碳 0.001至9.50 铈 0.005至0.05 铬 0.005至35.00 钴 0.01至75.0 铌 0.002至6.00 铜 0.005至10.00 氢气 0.0001至0.0030 铁 0.01至100.0 领导 0.001至0。 50 镁 0.001至0.05 锰 0.01至20.0 钼 0.002至30.00 镍 0.005至84.00 氮气 0.0005至0.50 氧气 0.0005至0.03 磷 0.001至0.90 硒 0.001至0.50 硅 0.001至6.00 硫黄 0.001至0.45 钽 0.001至10.00 碲 0.001至0.35 锡 0.002至0.35 钛 0.002至5.00 钨合金 0.005至21.00 钒 0.005至5.50 锌 0.005至0.20 锆 0.005至2500 1.2 测试方法按以下顺序出现: 小节 燃烧产生的碳和硫 10 – 19 氮气惰性气体熔融和热导率检测试验方法 20 – 30 惰性气体熔融和红外吸收或热导率检测法测定氧气 31 – 42 1.3 以国际单位制表示的值应被视为标准值。本标准不包括其他计量单位。 1.4 本标准并不旨在解决与其使用相关的所有安全问题（如果有的话）。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。 第节给出了具体的危害声明 6. . 1.5 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====== 4.1 本试验方法旨在测试铁、钢、钴和镍合金，以验证其是否符合A01和B02委员会发布的成分规范。假设所有使用这种测试方法的人都是经过培训的分析师，能够熟练、安全地执行常见的实验室程序。 预计这项工作将在设备齐全的实验室进行。 4.2 使用这种方法的实验室应制定工作程序，记录如何在其特定的实验室操作中实施测试方法。 4.3 该测试方法多次引用了“制造商的建议”。使用此声明时，该方法的用户应参考所用特定仪器的仪器操作手册，或直接咨询制造商以确定建议。

1.1 These test methods cover the determination of carbon, sulfur, nitrogen, and oxygen, in steel, iron, nickel, and cobalt alloys having chemical compositions within the following limits: Element Mass Fraction Range, % Aluminum 0.001 to 18.00 Antimony 0.002 to 0.03 Arsenic 0.0005 to 0.10 Beryllium 0.001 to 0.05 Bismuth 0.001 to 0.50 Boron 0.0005 to 1.00 Cadmium 0.001 to 0.005 Calcium 0.001 to 0.05 Carbon 0.001 to 9.50 Cerium 0.005 to 0.05 Chromium 0.005 to 35.00 Cobalt 0.01 to 75.0 Niobium 0.002 to 6.00 Copper 0.005 to 10.00 Hydrogen 0.0001 to 0.0030 Iron 0.01 to 100.0 Lead 0.001 to 0.50 Magnesium 0.001 to 0.05 Manganese 0.01 to 20.0 Molybdenum 0.002 to 30.00 Nickel 0.005 to 84.00 Nitrogen 0.0005 to 0.50 Oxygen 0.0005 to 0.03 Phosphorus 0.001 to 0.90 Selenium 0.001 to 0.50 Silicon 0.001 to 6.00 Sulfur 0.001 to 0.45 Tantalum 0.001 to 10.00 Tellurium 0.001 to 0.35 Tin 0.002 to 0.35 Titanium 0.002 to 5.00 Tungsten 0.005 to 21.00 Vanadium 0.005 to 5.50 Zinc 0.005 to 0.20 Zirconium 0.005 to 2.500 1.2 The test methods appear in the following order: Sections Carbon and Sulfur by Combustion 10 – 19 Nitrogen by the Inert Gas Fusion and Thermal Conductivity Detection Test Method 20 – 30 Oxygen by the Inert Gas Fusion and Infrared Absorption or Thermal Conductivity Detection Test Method 31 – 42 1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 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. Specific hazards statements are given in Section 6 . 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 This test method is intended for the testing of iron, steel, cobalt, and nickel alloys to verify compliance with compositional specifications such as those issued by Committees A01 and B02. It is assumed that all who use this test method will be trained analysts capable of performing common laboratory procedures skillfully and safely. It is expected that the work will be performed in a properly equipped laboratory. 4.2 Laboratories using this method shall prepare work procedures documenting how the test method is to be implemented in their specific laboratory operation. 4.3 This test method contains numerous references to “manufacturer’s recommendations”. When this statement is used, the user of this method is expected to refer to the instrument operation manual for the specific instrument being used or consult directly with the manufacturer to determine recommendations.