本规范规定了所有类型焊接填充金属的标准尺寸和包装要求， 允许通过引用将这些物理属性合并到单个规范中。附录列出了填充金属规范参考本规范适当要求的方式。本规范使用美国惯用单位和国际单位制（SI）。由于这些系统并不等同，因此每个系统必须独立使用。

This specification prescribes the requirements for standard sizes and packages of all types of welding filler metals, allowing these physical attributes to be incorporated by reference into the individual specification. The annex lists the manner by which the filler metal specification may refer to appropriate requirements in this specification.This specification makes use of both U.S. Customary Units and the International System of Units (SI). Since these are not equivalent, each system must be used independently of the other.