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Norm
ÖNORM EN ISO 7393-1
Issue date: 2000 06 01
Water quality - Determination of free chlorine and total chlorine - Part 1: Titrimetric method using N,N-diethyl-1,4-phenylenediamine (ISO 7393-1:1985)
This part of ISO 7393 specifies a titrimetric method for the determination of free chlorine and total chlorine in water.
Sea water and waters containing bromides and iod...
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Publisher:
Austrian Standards International
Format:
Digital | 11 Pages
Language:
German
| English
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Optionally co-design standards:
ICS
This part of ISO 7393 specifies a titrimetric method for the determination of free chlorine and total chlorine in water.
Sea water and waters containing bromides and iodides comprise a group for which special procedures are required.
The method is applicable to concentrations, in terms of chlorine (C12), from 0,000 4 to 0,07 mmol/l (0,03 to 5 mg/I) total chlorine and at higher concentrations by dilution of samples. For concentrations above 0,07 mmol/l, ISO 7393/3 can also be used.
In annex A a procedure is presented for the differentiation of combined chlorine of the monochloramine type, combined chlorine of the dichloramine type and combined chlorine in the form of nitrogen trichloride. Several compounds influence the determination specified in this part of ISO 7393. Interferences are noted in clauses 7 and 9.
ÖNORM EN ISO 7393-1
2000 06 01
Water quality - Determination of free chlorine and total chlorine - Part 1: Titrimetric method using...
Norm
↖
ÖNORM M 6255
1986 07 01
Water analysis; determination of free chlorine and total chlorine;titrimetric method using N,N-dieth...
Norm
Norm
ISO 7393-1:1985
Issue date :
1985 09 26
Water quality — Determination of free chlorine and total chlorine — Part 1: Titrimetric method using N,N-diethyl-1,4-phenylenediamine