ISO 7393-2:1985 Water quality - Determination of free chlorine and total chlorine - Part 2: Colorimetric method using N,N-diethyl-1,4-phenylenediamine, for routine control purposes
- Abbreviation
- ISO 7393-2:1985
- Valid from
- 24/10/1985
- Information provider
- Standards New Zealand,
- Author
- International Organization for Standardization
- Information type
- ISO Standard,
- Format
- PDF, HARD COPY,
Description
Specifies a procedure for water, readily applicable to field testing; it is based on measurement of the colour intensity by visual comparison of the colour with a scale of standards which is regularly calibrated. Sea water and waters containing bromides and iodides comprise a group for which special procedures are required. The procedure is applicable to concentrations, in terms of chlorine, from 0.0004 to 0.07 mmol/l total chlorine and at higher concentrations by dilution of samples. Interferences of the procedure are noted.
This resource is cited by:
ISO 7393-2:1985 Water quality - Determination of free chlorine and total chlorine - Part 2: Colorimetric method using N,N-diethyl-1,4-phenylenediamine, for routine control purposes
This document is CITED BY:
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AS/NZS 4020:2005
ISO 7393-2:1985 is cited by AS/NZS 4020:2005 Testing of products for use in contact with drinking water