DL 422.3-1991
HG/T 3539-2012
Industrial circulating cooling water-Determination of iron content-Spectrometric method using 1,10-phenathroline
GB/T 11202-1989
Rubber--Determination of iron content--1,10-Phenanthroline photometric method
GB/T 3049-1986
Chemical products for industrial use—General method for determination of iron content—o-Phenanthroline spectrophotometric method
GB/T 4348.3-1984
Sodium hydroxide for industrial use--Determination of iron content--o-phenanthroline photometric method
HG/T 3539-2003
Industrial circulating cooling water-Determination of iron-Spectrometric method using 1,10-phenanthroline
HG/T 3539-1990