NEN-EN-ISO 7393-2
Water quality - Determination of free chlorine and total chlorine - Part 2: Colorimetric method using N,N-diethyl-1,4-phenylenediam ine, for routine control purposes
active, Most Current
| Organization: | NEN |
| Publication Date: | 1 February 2000 |
| Status: | active |
| ICS Code (Examination of water for chemical substances): | 13.060.50 |
scope:
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 o,07 mmol/l total chlorine and at higher concentrations by dilution of samples. Interferences of the procedure are noted.
Document History
NEN-EN-ISO 7393-2
February 1, 2000
Water quality - Determination of free chlorine and total chlorine - Part 2: Colorimetric method using N,N-diethyl-1,4-phenylenediam ine, for routine control purposes
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...