T/FSI 086-2022
DL/T 2280-2021
Determination of sulfur trioxide content in flue gas of coal-fired power plants - Isopropanol absorption - Ion chromatography method
DB22/T 258-2001
KS M ISO 5440-2017(2022)
Sodium hexafluorosilicate for industrial use — Determination of phosphate content — Molybdovanadate spectrophotometric method
ISO 4281:1977
Sodium hexafluorosilicate for industrial use — Determination of free acidity and total hexafluorosilicate content — Titrimetric method
ISO 6677:1983
Hexafluorosilicic acid for industrial use — Determination of available fluorine content — Potentiometric method after distillation
ISO 5440:1978
Sodium hexafluorosilicate for industrial use — Determination of phosphate content — Molybdovanadate spectrophotometric method
ISO 5442:1980
Sodium hexafluorosilicate for industrial use — Determination of sulphur compounds content — Iodometric method after reduction
ISO 6229:1980
Sodium hexafluorosilicate for industrial use — Determination of free silica content — Gravimetric method
ISO 3701:1976
Anhydrous hydrogen fluoride for industrial use — Determination of hexafluorosilicic acid content — Reduced molybdosilicate photometric method
ISO 5443:1978
Sodium hexafluorosilicate for industrial use — Determination of iron content — 1,10 phenanthroline spectrophotometric method
32014R0737R(01)