Tagasi

ISO 1390-6:1977

Maleic anhydride for industrial use -- Methods of test -- Part 6: Determination of iron content -- 2,2'- Bipyridyl photometric method

Üldinfo
Kehtetu alates 27.05.2002
Tegevusala (ICS grupid)
71.080.50 Anhüdriidid
Direktiivid või määrused
puuduvad

Standardi ajalugu

Staatus
Kuupäev
Tüüp
Nimetus
Põhitekst
The principle is based on the dissolution, in hot hydrochloric acid, of the residue from the determination of the ash of a test portion (see ISO 1390/5). Reduction, by hydroxylammonium chloride, of the iron(III) contained in the solution thus obtained, formation of the coloured complex iron(II)-2,2'bipyridyl in a buffered medium. Photometric measurement of the coloured complex at a wavelength of about 510 nm. - ISO 1390, Parts 1 to 6, replace ISO Recommendation R 1390-1970.
*
*
*
PDF
55,07 € koos KM-ga
Paber
55,07 € koos KM-ga
Standardi monitooring