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SN EN ISO 7393-2 : 2000

Withdrawn

Withdrawn

A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.

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WATER QUALITY - DETERMINATION OF FREE CHLORINE AND TOTAL CHLORINE - PART 2: COLORIMETRIC METHOD USING N, N-DIETHYL-1, 4-PHENYLENEDIAMINE FOR ROUTINE CONTROL PURPOSES

Withdrawn date

01-08-2018

Superseded by

SN EN ISO 7393-2:2018

Published date

12-01-2013

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National foreword
0 Introduction
1 Scope and field of application
2 Definitions
3 Principle
4 Reagents
5 Apparatus
6 Procedure
7 Correction of interface due to the presence of
    oxidised manganese
Annex A Separate determinations of combined chlorine
         of the monochloramine type, combined chlorine
         of the dichloramine type and of combined
         chlorine in the form of nitrogen trichloride
Annex B Preparation of water free from oxidizing and
         reducing substances
Bibliography
Tables
1 Terms and synonyms in relation to actual
    compounds in the solution
2 Analytical parameters from interlaboratory
    analysis for free residual chlorine

Defines a procedure for the determination of free chlorine and total chlorine in water, readily applicable to field testing. Based on measurement of colour intensity by visual comparison of the colour with a standards scale that is regularly calibrated. Special methods are required for sea water and waters containing iodides and bromides.

DocumentType
Standard
PublisherName
Swiss Standards
Status
Withdrawn
SupersededBy

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