Active standard | Published: 09/09/1992

ISO 10530:1992

Water quality — Determination of dissolved sulfide — Photometric method using methylene blue
(Qualité de l´eau — Dosage des sulfures dissous — Méthode photométrique au bleu de méthylene)

Available languages: English, French

Available design: electronic design (pdf), Print design

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Detail information

Designation: ISO 10530:1992

Publication date: 09/09/1992

Pages: 9

Country: International technical standard

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Anotation

Description / Abstract: 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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