ISO-10530 › Water quality - Determination of dissolved sulfide - Photometric method using methylene blue

ISO-10530 - 1ST EDITION - CURRENT


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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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Document Number

ISO 10530:1992

Revision Level

1ST EDITION

Status

Current

Publication Date

Sept. 15, 1992

Committee Number

ISO TC 147/SC 2