Ferrochromiumsilicochromiumnitrogen-bearing ferrochromium and high nitrogen ferrochromium—Determination of chromium content—Ammonium persulfate oxidation titrimetric method and potentiometric titration method
STANDARD published on 1.8.2025
Designation standards: GB/T 4699.2-2025
Note: Execute Date: february 2026
Publication date standards: 1.8.2025
Country: Chinese technical standard
Category: Technical standards GB