1.1 本规范涵盖低熔点金属合金和焊料，包括铋锡、铋铅、铋锡铅、铋锡铅镉、铋锡铅铟镉、铋锡铅铟、铟铅和铟铅银，以及在低于其熔点的温度下将两种或两种以上金属连接在一起的铟锡；支撑和可移动边框的封堵；辐射屏蔽；易熔塞；保险丝；管子弯曲；和冲孔设置。 1.1.1 本规范应包括液相线温度不超过361的合金 华氏度[183度 °C]，锡铅共晶的熔点。 1.1.2 本规范包括实心棒、锭、粉末和特殊形状的低熔点合金，以及实心带状和金属丝形式的低熔点合金。 1.2 以英寸-磅单位或国际单位表示的数值应单独视为标准值。在本文中，国际单位制显示在括号中。每个系统中规定的值可能不是精确的等效值；因此，每个系统应相互独立使用。将两个系统的值合并可能会导致不符合标准。 1.3 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熟悉所有危险，包括制造商提供的本产品/材料的适当材料安全数据表（MSDS）中确定的危险，建立适当的安全、健康和环境实践，并在使用前确定监管限制的适用性。 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》中确立的国际公认标准化原则制定的。

1.1 This specification covers low-melting point metal alloys and solders, including bismuth-tin, bismuth-lead, bismuth-tin-lead, bismuth-tin-lead-cadmium, bismuth-tin-lead-indium-cadmium, bismuth-tin-lead-indium, indium-lead, and indium-lead-silver, and indium-tin joining together two or more metals at temperatures below their melting points; blocking for support and removable borders; radiation shielding; fusible plugs; fuses; tube bending; and punch setting. 1.1.1 This specification shall include those alloys having a liquidus temperature not exceeding 361 °F [183 °C], the melting point of the tin lead eutectic. 1.1.2 This specification includes low-melting point alloys in the form of solid bars, ingots, powder and special forms, and in the form of solid ribbon and wire. 1.2 The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, SI units are shown in brackets. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard. 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 become familiar with all hazards including those identified in the appropriate Material Safety Data Sheet (MSDS) for this product/material as provided by the manufacturer, to establish appropriate safety, health, and environmental practices, and determine the applicability of regulatory limitations prior to use. 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.