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download between 0-24 hoursReleased: 1992
ISO 10530:1992
ISO 10530:1992-Water quality — Determination of dissolved sulfide — Photometric method using methylene blue
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Standard´s number: | ISO 10530:1992 |
Pages: | 9 |
Edition: | 1 |
Released: | 1992 |
DESCRIPTION
ISO 10530:1992
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.