- Standard No.
- GB/T 223.26-2008
- Language
- Chinese, Available in English version
- Release Date
- 2008
- Published By
- General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
- Latest
-
GB/T 223.26-2008
- Replace
-
GB/T 223.27-1994
GB/T 223.26-1989
- Scope
- WARNING: Personnel applying this standard should have practical experience in formal laboratory work. This section does not address all possible security issues. It is the user's responsibility to take appropriate safety and health measures and ensure compliance with the conditions stipulated in the relevant national laws and regulations. This part of GB/T 223 specifies the determination of molybdenum content by thiocyanate direct photometry and thiocyanate-butyl acetate extraction spectrophotometry. Method 1 in this part is applicable to the determination of molybdenum content in medium and low alloy steels, high temperature and diamond and precision alloys with a mass fraction of 0.10% to 2.00%; method 2 in this part is applicable to pig iron, carbon steel, and alloy steels with a mass fraction of 0.0025% Determination of ~0.20% molybdenum content.
GB/T 223.26-2008 Referenced Document
- GB/T 20066 Steel and iron.Sampling and preparation of samples for the determination of chemical composition
- GB/T 6379.1 Accuracy(trueness and precision)of measurement methods and results Part 1:General principles and definitions
- GB/T 6379.2 Accuracy(trueness and precision)of measurement methods and results-Part 2:Basic method for the determination of repeatability and reproducibility of a standard measurement method
GB/T 223.26-2008 history
- 2008 GB/T 223.26-2008 Iron,steel and alloy.Determination of molybdenum content.The thiocyanate spectrophotometric method
- 1994 GB/T 223.27-1994 Methods for chemical analysis of iron, steel and alloy.The thiocyanate-butyl acetate extraction spectrophotometric method for the determination of molybdenum content
- 1989 GB/T 223.26-1989 Methods for chemical analysis of iron,steel and alloy--The thiocyanate direct photometric method for the determination of molybdenum content
- 1984 GB 223.27-1984 Methods for chemical analysis of iron,steel and alloy--The thiocyanate-butyl acetate extraction photometric method for the determination of molybdenum content
GB/T 223.26-2008 Iron,steel and alloy.Determination of molybdenum content.The thiocyanate spectrophotometric method has been changed from GB/T 223.27-1994 Methods for chemical analysis of iron, steel and alloy.The thiocyanate-butyl acetate extraction spectrophotometric method for the determination of molybdenum content.