This standard specifies the method for the determination of iron content in bismuth. This standard applies to the determination of iron content in bismuth. Measuring range: 0.0003% to 0.0015%.
GB/T 8220.2-1998 history
1998GB/T 8220.2-1998 Methods for chemical analysis bismuth--Determination of iron content--1,10-Phenanthroline photometric method
0000 GB/T 8220.2-1987
GB/T 8220.2-1998 Methods for chemical analysis bismuth--Determination of iron content--1,10-Phenanthroline photometric method was changed to YS/T 536.2-2006 Bismuth Chemical Analysis Method 1,10-Phenanthroline Spectrophotometric Determination of Iron Content.