- Standard No.
- GB/T 12689.5-2004
- Language
- Chinese, Available in English version
- Release Date
- 2004
- Published By
- General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
- Latest
-
GB/T 12689.5-2004
- Replace
-
GB/T 12689.3-1990
GB/T 12689.8-1990
- Scope
- This part specifies the method for the determination of iron content in zinc and zinc alloys. This section applies to the determination of iron content in zinc and zinc alloys. Measuring range: 0.001 0% to 0.100%.
GB/T 12689.5-2004 history
- 2004 GB/T 12689.8-2004 The methods for chemical analysis of zinc and zinc alloys-The determination of silicon content-The molybdenum blue spectrophotometric method
- 1990 GB/T 12689.5-1990 Zinc and zinc alloys--Determination of silicon content--Molybdenum blue spectrophotometric method
- 0000 GB 473-1976
GB/T 12689.5-2004 The methods for chemical analysis of zinc and zinc alloys-The determination of iron content-The sultosalicylic acid spectrometric method and the flame atomic absorption spectrometric method has been changed from GB/T 12689.3-1990 Zinc and zinc alloys--Determination of iron content--Sulphosalicylic acid spectrophotometric method.
GB/T 12689.5-2004 The methods for chemical analysis of zinc and zinc alloys-The determination of iron content-The sultosalicylic acid spectrometric method and the flame atomic absorption spectrometric method has been changed from GB/T 12689.8-1990 Zinc and zinc alloys--Determination of iron content--Flame atomic absorption spectrometric method.