ISO 7766:2003
Processing photographic wastes — Analysis of cyanides — Determination of hexacyanoferrate (II) and hexacyanoferrate (III) by spectrometry
Processing photographic wastes — Analysis of cyanides — Determination of hexacyanoferrate (II) and hexacyanoferrate (III) by spectrometry
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 7
- Дата публикации:
- 19 июня 2003 г.
- Издание:
- ISO IS 7766 edition 1 version 1
- ICS:
- 13.030.30
ISO 7766:2003 establishes a test method for the determination of hexacyanoferrate(II) (ferrocyanide) and hexacyanoferrate(III) (ferricyanide), referred to hereafter as Fe(CN)6, in photographic processing effluents. Results are reported as hexacyanoferrate, Fe(CN)6.
Abstract
Overview
ISO 7766:2003, "Processing photographic wastes - Analysis of cyanides - Determination of hexacyanoferrate(II) and hexacyanoferrate(III) by spectrometry," specifies a laboratory test method for measuring complexed cyanides (hexacyanoferrate, Fe(CN)6) in photographic processing effluents. The method reports results as total hexacyanoferrate and is intended to support environmental compliance and internal monitoring of photographic wastewater.
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