HB 5220.31-2008
Methods for chemical analysis of superalloys. Part 31: Determination of tungsten content by cinchonine-ethylnaphthalene quinoline gravimetric method (English Version)
- Standard No.
- HB 5220.31-2008
- Language
- Chinese, Available in English version
- Release Date
- 2008
- Published By
- Professional Standard - Aviation
- Latest
- HB 5220.31-2008
- Replace
- HB 5220.31-1995
- Scope
- This part specifies the principles, reagents, sample preparation, analysis steps, calculation of analysis results, tolerances, and quality control and requirements for the determination of tungsten content in high-temperature alloys using the cinchonine-bhenaquinoline gravimetric method. This section applies to the determination of tungsten content in high-temperature alloys. Measuring range: 1.00%~30.00%.
HB 5220.31-2008 Referenced Document
- HB 5220.17-2008 Methods for chemical analysis of superalloys. Part 17: Determination of vanadium content by N-benzyl-N-phenylhydroxylamine-chloroform extraction photometric method
- HB 5220.22-2008 Methods for chemical analysis of superalloys. Part 22: Determination of molybdenum content by thiocyanate photometric method
- HB 5421 General rules and general regulations for chemical composition analysis methods of metallic materials
- HB/Z 205 Specification for sampling of specimens for chemical analysis of steels and superalloys
HB 5220.31-2008 history
- 2008 HB 5220.31-2008 Methods for chemical analysis of superalloys. Part 31: Determination of tungsten content by cinchonine-ethylnaphthalene quinoline gravimetric method
- 1995 HB 5220.31-1995 Superalloy Chemical Analysis Method Cinchonine-Binaphthaquinoline Gravimetric Method for Determination of Tungsten Content
