BS ISO 17690:2015
Current
The latest, up-to-date edition.
Water quality. Determination of available free cyanide (pH 6) using flow injection analysis (FIA), gas-diffusion and amperometric detection
Hardcopy , PDF
English
31-03-2015
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Interferences
5 Principle
6 Reagents
7 Apparatus
8 Sampling and sample preparation
9 Procedure
10 Calculations
11 Expression of results
12 Test report
Annex A (informative) - Example of a flow injection system
Annex B (normative) - Determination of the real cyanide
concentration in the potassium cyanide solution
Annex C (informative) - Performance data
Bibliography
Defines methods for the determination of available free cyanide at pH 6 in various types of water (such as ground, drinking, surface, leachate, waste water, and metallurgical processing waste water) with cyanide concentrations from 5 [mu]g/l to 500 [mu]g/l expressed as cyanide ions in the undiluted sample.
| Committee |
EH/3/2
|
| DevelopmentNote |
Supersedes 14/30256272 DC. (03/2015)
|
| DocumentType |
Standard
|
| Pages |
24
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
| Supersedes |
This International Standard specifies methods for the determination of available free cyanide at pH6 in various types of water (such as ground, drinking, surface, leachate, waste water, and metallurgical processing waste water) with cyanide concentrations from 5µg/l to 500µg/l expressed as cyanide ions in the undiluted sample. The range of application can be changed by varying the operation conditions, e.g. by using a different injection volume (FigureA.1).
NOTE1 ISO2080:2008, 3.105, the concentration of available free cyanide as determined by a specified analytical method.
NOTE2 The detection limit for this method was determined by interlaboratory testing at the national level using ASTM International D6512 Practice for Interlaboratory Quantitation Estimate.
NOTE3 Free cyanides according to ISO14403 and ISO17690 are not equivalent.
In this method, two suitable mass concentration ranges from 5µg/l to 50µg/l and from 50µg/l to 500µg/l are described.
| Standards | Relationship |
| ISO 17690:2015 | Identical |
| ISO 2080:2008 | Metallic and other inorganic coatings Surface treatment, metallic and other inorganic coatings Vocabulary |
| ISO 5667-3:2012 | Water quality Sampling Part 3: Preservation and handling of water samples |
| ISO 8466-2:2001 | Water quality — Calibration and evaluation of analytical methods and estimation of performance characteristics — Part 2: Calibration strategy for non-linear second-order calibration functions |
| ISO 5725-2:1994 | Accuracy (trueness and precision) of measurement methods and results Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method |
| ISO 3696:1987 | Water for analytical laboratory use — Specification and test methods |
| ISO 8466-1:1990 | Water quality Calibration and evaluation of analytical methods and estimation of performance characteristics Part 1: Statistical evaluation of the linear calibration function |
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