Norm

ISO 910:1977 en

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

31,57

Over deze norm

Status Definitief
Aantal pagina's 3
Gepubliceerd op 01-11-1977
Taal Engels
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.

Details

ICS-code 71.060.30
Nederlandse titel Sulphuric acid and oleum for industrial use - Determination of total acidity, and calculation of free sulphur trioxide content of oleum - Titrimetric method
Engelse titel Sulphuric acid and oleum for industrial use - Determination of total acidity, and calculation of free sulphur trioxide content of oleum - Titrimetric method

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