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Norm
ISO 10530:1992
Issue date: 1992 09 09
Water quality — Determination of dissolved sulfide — Photometric method using methylene blue
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 mas...
Valid
Publisher:
International Organization for Standardization
Format:
Digital | 9 Pages
Language:
English
ICS
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.
