GB/T 11198.1-1989
Sulphuric acid for industrial use--Determination of sulphuric acid content and calculation of free sulphur trioxide content of oleum--Titrimetric method
KS M ISO 910-2004(2019)
Sulphuric acid and oleum for industrial use-Determination of total acidity, and calculation of free sulphur trioxide content of oleum-Titrimetric method
GB/T 1880-1995
Phosphate rock and concentrate--Determination of sulfur trioxide content--Gravimetric method
20214166-T-609
Assessment method for SO3 content in cement
DL/T 2280-2021
Determination of sulfur trioxide content in flue gas of coal-fired power plants - Isopropanol absorption - Ion chromatography method
JC/T 668-2009
DB45/T 1341-2016
ISO 910:1977
Sulphuric acid and oleum for industrial use — Determination of total acidity, and calculation of free sulphur trioxide content of oleum — Titrimetric method
KS M ISO 910-2004(2024)
Sulphuric acid and oleum for industrial use-Determination of total acidity, and calculation of free sulphur trioxide content of oleum-Titrimetric method
GB/T 16026-1995
Workplace air—Determination of sulfuric acid and sulfur trioxide—Barium chloride turbidimetric method
SN/T 4766-2017
Determination of sulfur trioxide in common cement-Ion chromatography
UNE 55592:1981
SURFACE ACTIVE AGENTS. SULPHURIC ACID AND OLEUMS FOR USE AS RAW-MATERIALS IN DETERGENTS FORMULATIONS. DETERMINATION OF TOTAL ACIDITY, AND CALCULATION OF FREE SULPHUR TRIOXIDE CONTENT OF OLEUMS. TITRIMETRIC METHOD
BS 3903:1977
Methods of test for sulphuric acid, oleum and liquid sulphur trioxide
T/ACCEM 311-2024
KS M ISO 3423-2015(2020)
Sulphuric acid and oleums for industrial use-Determination of sulphur dioxide content-Iodometric method
VDI 2462 Sheet 2-DRAFT
Draft Document - Stationary source emissions - Determination of sulphur trioxide in water vapour containing exhaust gas - Condensation method
ISO 3423:1975
Sulphuric acid and oleums for industrial use — Determination of sulphur dioxide content — Iodometric method
UNE 55590:1981
SURFACE ACTIVE AGENTS. SULPHURIC ACID AND OLEUMS FOR USE AS RAW-MATERIALS IN DETERGENT FORMULATIONS. DETERMINATION OF SULPHUR DIOXIDE CONTENT. IODOMETRIC METHOD