Norm

ISO/R 909:1968 en

Hydrochloric acid for industrial use - Determination of iron content - 2,2'- Bipyridyl spectrophotometric method

31,57

Over deze norm

Status Definitief
Aantal pagina's 5
Gepubliceerd op 01-12-1968
Taal Engels
The principle consists in evaporation of the test portion, taking up by means of hydrochloric acid and reduction of iron(III) by means of hydroxylammonium chloride. Formation of an iron(II)-2.2'-bipyridyl complex in a buffered medium at a pH value between 4.5 and 6. Photometric measurement of the coloured complex at a wavelength of about 522 nm.

Details

ICS-code 71.060.30
Nederlandse titel Hydrochloric acid for industrial use - Determination of iron content - 2,2'- Bipyridyl spectrophotometric method
Engelse titel Hydrochloric acid for industrial use - Determination of iron content - 2,2'- Bipyridyl spectrophotometric method

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