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(2024)
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(2019)
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 3423-2015(2020)
Sulphuric acid and oleums for industrial use-Determination of sulphur dioxide content-Iodometric method
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
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
ISO 914:1977
Sulphuric acid and oleum for industrial use — Determination of total nitrogen content — Titrimetric method after distillation
GB/T 26442-2010
Feed additive - Menadione Nicotinamide Bisulfite
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
ISO 2717:1973
Sulphuric acid and oleum for industrial use — Determination of lead content — Dithizone photometric method
ISO 2899:1974
Sulphuric acid and oleums for industrial use — Determination of ammoniacal nitrogen content — Spectrophotometric method
GB/T 5195.18-2018
Fluorspar—Determination of barium sulfate content—Gravimetric method
GB/T 32784-2016
Pig iron contenting nickel—Determination of chromium content—Ammonium per sulfate-ammonium ferrous sulfate titration method
GB/T 4701.2-2009
Ferrotitanium - Determination of silicon content - The sulphuric acid dehydration gravimetric method
GB/T 6730.16-2016
Iron ores—Determination of sulfur content—Barium sulfate gravimetric method
GB/T 6730.29-2016
Iron ores—Determination of barium content—Barium sulfate grarimetric method
ISO/R 915:1968
Sulphuric acid and oleum for industrial use — Determination of iron content — 2,2'- Bipyridyl spectrophotometric method
YB/T 6013.1-2022
HG/T 6108-2022