Résumé
The specified method is applicable to sulfide determination in a mass concentration range from 0,04 mg/l to 1,5 mg/l. The following ions do not interfere in specified mass concentrations: cyanide, iodide, thiosulfate, thiocyanate, sulfite. The principle is filtration, conservation of the sulfide in the filtrate, stripping of the sulfides, formation of leukomethylene blue, measurement of the absorbance of this complex at a wavelength of 665 nm. Annex A describes standardization of sulfide stock solution.
Informations générales
-
État actuel: PubliéeDate de publication: 1992-09Stade: Norme internationale confirmée [90.93]
-
Edition: 1Nombre de pages: 9
-
Comité technique :ISO/TC 147/SC 2ICS :13.060.50
- RSS mises à jour