ISO 7766:2003

INTERNATIONAL ISO
STANDARD 7766
First edition
2003-06-15

Processing photographic wastes —
Analysis of cyanides — Determination of
hexacyanoferrate(ll) and
hexacyanoferrate(lll) by spectrometry
Effluents de traitement photographiques — Analyse des cyanures —
Détermination de l'hexacyanoferrate(ll) et de l'hexacyanoferrate(lll) par
spectrométrie





Reference number
ISO 7766:2003(E)
©
ISO 2003

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ISO 7766:2003(E)
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ii © ISO 2003 — All rights reserved

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ISO 7766:2003(E)
Contents Page
Foreword. iv
Introduction . v
1 Scope. 1
2 Normative references . 1
3 Safety and operational precautions . 1
4 Principle . 2
5 Reactions . 3
6 Reagents and materials. 3
7 Apparatus. 4
8 Sampling and sample preparation . 4
9 Procedure. 5
10 Expression of results. 6
11 Test report. 6
Bibliography . 7

© ISO 2003 — All rights reserved iii

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ISO 7766:2003(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committee. International organizations, governmental and
non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the
International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
Int
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