1.1 本试验方法涵盖化学成分在以下范围内的镁硅铁的化学分析: 要素 成分范围， % 铝 最大2.0 钙 0.25至3.00 碳 最大0.50 铈 最大1.0 铬 最大0.50 镁 2.00至12.00 锰 最大1.0 硅 40.00至55.00 硫黄 最大0.025 钛 最大0.2 1.2 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。 有关本试验方法中应遵守的一般预防措施，请参阅规程 E50 . 1.3 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 本金属和合金化学分析试验方法主要用于测试此类材料是否符合成分规范。假设所有使用该测试方法的人都是经过培训的分析员，能够熟练、安全地执行常见的实验室程序。预计工作将在配备适当的实验室中进行。

1.1 This test method covers the chemical analysis of magnesium ferrosilicon having chemical compositions within the following limits: Element Composition Range, % Aluminum 2.0 max Calcium 0.25 to 3.00 Carbon 0.50 max Cerium 1.0 max Chromium 0.50 max Magnesium 2.00 to 12.00 Manganese 1.0 max Silicon 40.00 to 55.00 Sulfur 0.025 max Titanium 0.2 max 1.2 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 general precautions to be observed in this test method, refer to Practices E50 . 1.3 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 for the chemical analysis of metals and alloys is primarily intended to test such materials for compliance with compositional specifications. 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 work will be performed in a properly equipped laboratory.