Determination of iron content in thallium (o-phenanthroline absorptiometry)
GB/T 2592.2-1981 history
1981GB/T 2592.2-1981 Thallium--Determination of iron content--1,10-phenanthroline photometric method
GB/T 2592.2-1981 Thallium--Determination of iron content--1,10-phenanthroline photometric method was changed to YS/T 569.2-2006 Determination of iron content in thallium (o-phenanthroline absorptiometry).