HB 7064.3-1994
Metal heat treatment salt bath chemical analysis method barium sulfate precipitation EDTA titration method for determination of sulfate radical content (English Version)
- Standard No.
- HB 7064.3-1994
- Language
- Chinese, Available in English version
- Release Date
- 1994
- Published By
- Professional Standard - Aviation
- Latest
- HB 7064.3-1994
- Scope
- This standard specifies the method principle, reagents, analysis steps, calculation and tolerance of analysis results for the determination of sulfate content in metal heat treatment salt baths using the barium sulfate precipitation-EDTA titration method. This standard is applicable to the determination of sulfate radicals in high-temperature salt baths and medium-temperature salt baths (barium chloride-sodium chloride, potassium chloride-sodium chloride) for metal heat treatment. Measuring range: ≤0.20%
HB 7064.3-1994 history
- 1994 HB 7064.3-1994 Metal heat treatment salt bath chemical analysis method barium sulfate precipitation EDTA titration method for determination of sulfate radical content
