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ISO 10530:1992

Water quality — Determination of dissolved sulfide — Photometric method using methylene blue ISO 10530:1992

Publication date:   Sep 9, 1992

General information

90.20 Standard under periodical review   Jan 15, 2024

ISO

ISO/TC 147/SC 2 Physical, chemical and biochemical methods

International Standard

13.060.50   Examination of water for chemical substances

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Scope

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.

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PUBLISHED
ISO 10530:1992
90.20 Standard under periodical review
Jan 15, 2024