Sulphuric acid and oleum for industrial use Determination of total acidity, and calculation of free sulphur trioxide content of oleum Titrimetric method

Available format(s)

Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users

Language(s)

English, French

Published date

01-11-1977

Publisher

International Organization for Standardization

Two cases are considered: sulphuric acid contents equal to or lower than 98 % (m/m) and sulphuric acid contents higher than 98 % (m/m). The principle is based on oxidation of a test portion with hydrogen peroxide and titration of the total acidity with a standard volumetric sodium hydroxide solution, in the presence of methyl red as indicator. - Replaces ISO Recommendation R 910-1968.

DocumentType	Standard
Pages	3
PublisherName	International Organization for Standardization
Status	Current

Standards	Relationship
NBN T 03 016 : 1979	Identical
NFT 20 291 : 82 FD	Identical
UNE 55592:1981	Identical

DIN EN 899:2009-07	Chemicals used for treatment of water intended for human consumption - Sulfuric acid
BS EN 899:2009	Chemicals used for treatment of water intended for human consumption. Sulfuric acid
I.S. EN 899:2009	CHEMICALS USED FOR TREATMENT OF WATER INTENDED FOR HUMAN CONSUMPTION - SULPHURIC ACID
ONORM EN 899 : 2009	CHEMICALS USED FOR TREATMENT OF WATER INTENDED FOR HUMAN CONSUMPTION - SULPHURIC ACID
NF EN 899 : 2009	CHEMICALS USED FOR TREATMENT OF WATER INTENDED FOR HUMAN CONSUMPTION - SULPHURIC ACID
UNI EN 899 : 2009	CHEMICALS USED FOR TREATMENT OF WATER INTENDED FOR HUMAN CONSUMPTION - SULPHURIC ACID
BS 3903:1977	Methods of test for sulphuric acid, oleum and liquid sulphur trioxide
EN 899:2009	Chemicals used for treatment of water intended for human consumption - Sulphuric acid