HG/T 2768-2009
GB/T 4333.1-2019
Ferrosilicon—Determination of silicon content—Perchloric acid dehydration gravimetric method and potassium fluosilicate volumetric method
HG/T 2768-1996
SN/T 1014.1-2001
GB/T 19421.10-2003
Test methods of crystalline layered sodium disilicate—Potassium fluosilicate volumetric methods for determination of silica dioxide content
HG/T 5218~5219-2017
GB/T 5686.2-2022
Ferromanganese, ferromanganese-silicon, nitrogen-bearing ferromanganese and manganese metal—Determination of silicon content—Molybdenum blue spectrophotometric method, silicon potassium fluoride titrimetric method and perchloric acid dehydration gravimetric method
YS/T 535.11-2020
KS M ISO 4281-2015(2020)
Sodium hexafluorosilicate for industrial use-Determination of free acidity and total hexafluorosilicate content-Titrimetric method
HG/T 5206~5209-2017
GB/T 3884.16-2014
Methods for chemical analysis of copper concentrates―Part 16: Determination of silicon dioxide content―K2SiF6 titrimetric method and Gravimetric method
GB/T 5686.2-2008
Ferromanganese,ferromanganese-silicon,nitrogen-bearing ferromanganese and manganese metal—Determination of silicon content—Molybdenum blue photometric method,silicon potassium fluoride titrimetric method and perchloric acid dehydration gravimetric method
KS M ISO 5440-2017(2022)
Sodium hexafluorosilicate for industrial use — Determination of phosphate content — Molybdovanadate spectrophotometric method
20232203-T-610
Methods of chemical analysis of copper concentrates - Part 16:Determination of silicon dioxide content - K2SiF6 titrimetric method and gravimetric method
KS M 1809-2006(2011)
Sodium hexafluorosilicate for industrial use-Determination of free acidity and total hexafluorosilicate content-Titrimetric method
YS/T 990.10-2014
Methods for chemical analysis of copper matte—Part 10:Determination of silicon dioxide content—Molybdenum blue spectrophotometry and potassium fluosilicate titrimetric method
ISO 4281:1977
Sodium hexafluorosilicate for industrial use — Determination of free acidity and total hexafluorosilicate content — Titrimetric method
20231545-T-605
Ferrochromium, silicochromium, nitrogen-bearing ferrochromium and high nitrogen ferrochromium-Determination of silicon content-Silicomolybdic blue spectrophotometric method,silicon potassium fluoride titrimetric method and perchloric acid dehydration gravimetric method
GB/T 23936-2018
Sodium hexafluorosilicate for industrial use
HG/T 2832-2020