GERMAN STANDARD METHODS FOR EXAMINATION OF WATER, WASTE WATER AND SLUDGE - ANIONS (GROUP D) - PART 7: DETERMINATION OF CYANIDES IN LOW POLLUTED WATER BY LIQUID CHROMATOGRAPHY OF IONS OR POTENTIOMETRIC TITRATION (D 7)

Available format(s)

Hardcopy , PDF

Language(s)

German, English

Published date

01-01-2002

Publisher

German Institute for Standardisation (Deutsches Institut für Normung)

Foreword
Introduction
1 Scope
2 Normative references
3 Concepts
4 Determination of total cyanide
5 Determination of readily liberated cyanide
6 Determination by ion chromatography
7 Determination by potentiometric titration
8 Expression of results
9 Test report
10 Results of interlaboratory testing
Appendix A: Examples of suitable chromatographic
separating systems
Explanatory notes
Bibliography

Describes two methods of determining cyanide: 1) The decomposition and separation method serves to determine total cyanide in lightly polluted water (e.g. purified waste water, ground water, drinking water and surface water) whose cyanide concentration (calculated as cyanide ions) is between 0,01 mg/l and 10 mg/l. If the concentration is greater than 10 mg/l, the sample is to be diluted or a smaller volume is to be taken. 2) The separation method serves to determine readily liberated cyanide in lightly polluted water (e.g. purified waste water, ground water, drinking water and surface water) whose cyanide concentration (calculated as cyanide ions) is between 0,01 mg/l and 10 mg/l. If the concentration is greater than 10 mg/l, the sample is to be diluted or a smaller volume is to be taken.

DevelopmentNote	Supersedes DIN 38405 (07/2004)
DocumentType	Standard
Pages	29
PublisherName	German Institute for Standardisation (Deutsches Institut für Normung)
Status	Current
Supersedes	DIN 38405 : LATEST