714173

ISO 10304-4:1997

Water quality - Determination of dissolved anions by liquid chromatography of ions - Part 4: Determination of chlorate, chloride and chlorite in water with low contamination

standard by International Organization for Standardization , 12/01/1997

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This part of ISO 10304 specifies a method for the determination of the dissolved anions chlorate, chloride, and chlorite in water with low contamination (e.g. drinking water, raw water or swimming pool water).

An appropriate pretreatment of the sample (e.g. dilution) and the use of a conductivity detector (CD), UV detector (UV) or amperometric detector (AD) make the working ranges given in table 1 feasible.

Table 1 - Working ranges of the analytical method
AnionWorking range mg/l*Detection
Chlorate0,03 to 10CD
Chloride0,1 to 50CD
Chlorite**0,05 to 1CD
0,1 to 1UV; λ = 207 nm to 220 nm
0,01 to 1AD; 0,4 to 1,0 V
* The working range is restricted by the ion-exchange capacity of the columns. Dilute the sample in to the working range, if necessary.
** The minimum working range for chlorite of 0,05 mg/l was obtained using calibration checks, but the round robin trials (annex A, table A.4) showed that it is difficult to obtain this with sufficient accuracy. Thus great care shall be taken when working in the lower range of this method.
 

Product Details

Published:
12/01/1997
Number of Pages:
19
File Size:
1 file , 1.1 MB
Same As:
BS EN ISO 10304-4:2000, BS EN ISO 10304-4:2000
Note:
This product is unavailable in Ukraine, Russia, Belarus
 

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  1. ISO 10304-4:2022


    Water quality - Determination of dissolved anions by liquid chromatography of ions - Part 4: Determination of chlorate, chloride and chlorite in water with low contamination

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  2. ISO 10304-4:1997

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    Water quality - Determination of dissolved anions by liquid chromatography of ions - Part 4: Determination of chlorate, chloride and chlorite in water with low contamination

    • Historical Version