本文件列出了目前可用于测定镍、镍铁和镍合金化学成分的国际标准（见条款？4）. 它提供了适用范围的细节，并给出了每个国际标准中描述的方法的原理（见条款？5）. 附件？a显示了本文档中列出的方法的含量范围的图形表示: 身材？A.1表示可用于三种矩阵的方法的应用领域； 身材？A.2给出了镍方法的含量范围； 身材？A.3给出了镍铁方法的含量范围； 身材？A.4给出了镍合金方法的含量范围。 附件？B提供附件所示数字中所用缩略语的双语关键字？A.

This document lists the International Standards which are currently available for the determination of the chemical composition of nickels, ferronickels and nickel alloys (see Clause？4). It provides details on the range of application and gives the principle of the method described in each International Standard (see Clause？5). Annex？A shows graphical representations of the content ranges of the methods listed in this document:

• Figure？A.1 represents the fields of application of the methods available for the three kinds of matrixes;
• Figure？A.2 gives the content ranges of the methods for nickels;
• Figure？A.3 gives the content ranges of the methods for ferronickels;
• Figure？A.4 gives the content ranges of the methods for nickel alloys.

Annex？B provides a bilingual key of the abbreviated terms used in the figures given in Annex？A.