19/30355969 DC - BS ISO 22066. Water quality. Determination of available total cyanide. Method using segmented flow injection, in-line ultraviolet digestion analysis by gas diffusion and amperometric detection

19/30355969 DC

BS ISO 22066. Water quality. Determination of available total cyanide. Method using segmented flow injection, in-line ultraviolet digestion analysis by gas diffusion and amperometric detection

Status : Draft for public comment, Current   Published : June 2019

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This document specifies operationally defined methods for the determination of available total cyanide in various types of water such as drinking water, ground water, surface water, wastewaters, metallurgical processing tailings reclaim solution, heap leach barren solution, mill slurry tailings filtrate and leaching solutions, with cyanide concentrations from 5 µg/l to 2 000 mg/l expressed as cyanide ions in the undiluted sample. The range of application can be extended by reducing the sensitivity (Figure A.1.).

NOTE

ISO 2080:2008, 3.105, defines free cyanide. The concentration of available total cyanide includes free cyanide and cyanide complexed in solution with cyanide anion, but not necessarily all of the metal cyanide complexes present as determined by a specified analytical method (3.191).

In this method, six suitable mass concentration ranges from 5 µg/l to 50 µg/l, from 50 µg/l to 500 µg/l, from 0,5 mg/l to 5 mg/l, from 5 mg/l to 50 mg/l, from 50 mg/l to 500 mg/l and from 500 mg/l to 2 000 mg/l are described.




Standard Number19/30355969 DC
TitleBS ISO 22066. Water quality. Determination of available total cyanide. Method using segmented flow injection, in-line ultraviolet digestion analysis by gas diffusion and amperometric detection
StatusDraft for public comment, Current
Publication Date11 June 2019
Normative References(Required to achieve compliance to this standard)ISO 2080:2008, ISO 8466-1, ISO 20950-1, ISO 5667-3, ISO 17690, ISO 8466-2, ISO 3696
Informative References(Provided for Information)ISO 17690:2015, ISO/TR 19588:2017, ISO 20950-1:2018, ISO 5725-2, ASTM D7728
International RelationshipsISO/DIS 22066
Draft Expiry Date29 July 2019
DescriptorsAmperometric analysis, Diffusion, Analysis, Quality, Water
ICS13.060.50
Title in FrenchTitre manque
CommitteeEH/3/2
PublisherBSI
FormatA4
DeliveryYes
Pages23
File Size485 KB
NotesWarning: this draft is not current beyond its expiry date for comments.
Price£20.00


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