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BS EN ISO 10304-3:1997

BS EN ISO 10304-3:1997

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Water quality. Determination of dissolved anions by liquid chromatography of ions Determination of chromate, iodide, sulfite, thiocyanate and thiosulfate

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

10-15-1997

Publisher

British Standards Institution

1 Scope
2 Normative references
3 Principle
4 Determination of iodide, thiocyanate and thiosulfate
    4.1 Reagents
    4.2 Apparatus
    4.3 Interferences
    4.4 Sampling and sample pretreatment
    4.5 Procedure
    4.6 Calculation
    4.7 Expression of results
    4.8 Test report
5 Determination of sulfite
    5.1 Reagents
    5.2 Apparatus
    5.3 Interferences
    5.4 Sampling and sample pretreatment
    5.5 Procedure
    5.6 Calculation
    5.7 Expression of results
    5.8 Test report
6 Determination of chromate
    6.1 Reagents
    6.2 Apparatus
    6.3 Interferences
    6.4 Sampling and sample pretreatment
    6.5 Procedure
    6.6 Calculation
    6.7 Expression of results
    6.8 Test report
7 Precision
Annex A (informative) Interlaboratory trials
Annex B (informative) Bibliography

Defines procedures for determining in aqueous solution the dissolved anions iodide, thiocyanate and thiosulfate, sulfite and chromate. ALSO NUMBERED AS BS 6068-2.59: 1997

This part of ISO 10304 specifies methods for the determination in aqueous solution of the dissolved anions iodide, thiocyanate and thiosulfate (clause 4); sulfite (clause 5); chromate (clause 6). An appropriate pretreatment of the sample (e.g. dilution) and the application of a conductivity detector (CD), UV detector (UV) or amperometric detector (AD) make the working ranges given in table 1 feasible. Table 1 Applicable working ranges Anion Working range1) Detector Chromate (CrO4), clause 6 0,05 mg/l to 50 mg/l UV (λ = 365 nm) Iodide (I), clause 4 0,1 mg/l to 50 mg/l CD or UV (λ = 205 nm to 236 nm)
AD (approximately 0,7 V to 1,1 V) Sulfite (SO3), clause 5 0,1 mg/l to 50 mg/l
0,5 mg/l to 50 mg/l CD
UV (λ = 205 nm to 220 nm) Thiocyanate (SCN), clause 4 0,1 mg/l to 50 mg/l CD or UV (λ = 205 nm to 220 nm)
AD (approximately 0,7 V to 1,1 V) Thiosuifate (S2O3), clause 4 0,1 mg/l to 50 mg/l CD or UV (λ = 205 nm to 220 nm)
AD (approximately 0,7 V to 1,1 V) 1) The working range is restricted by the exchange capacity of the columns. Dilute the sample into the working range if necessary.

Committee
EH/3/2
DevelopmentNote
Also numbered as BS 6068-2.59(1997) Supersedes 95/520582 DC (09/2005) Reviewed and confirmed by BSI, July 2008. (06/2008)
DocumentType
Standard
Pages
26
PublisherName
British Standards Institution
Status
Current
Supersedes

BS PAS 61(2006) : 2006 DETERMINATION OF PRIORITY POLLUTANTS IN SURFACE WATER USING PASSIVE SAMPLING

ISO 5667-2:1991 Water quality Sampling Part 2: Guidance on sampling techniques
ISO 10304-1:2007 Water quality Determination of dissolved anions by liquid chromatography of ions Part 1: Determination of bromide, chloride, fluoride, nitrate, nitrite, phosphate and sulfate
ISO 5667-3:2012 Water quality Sampling Part 3: Preservation and handling of water samples
ISO 10304-2:1995 Water quality Determination of dissolved anions by liquid chromatography of ions Part 2: Determination of bromide, chloride, nitrate, nitrite, orthophosphate and sulfate in waste water
ISO 5667-1:2006 Water quality Sampling Part 1: Guidance on the design of sampling programmes and sampling techniques
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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