SN EN ISO 7393-2 : 2000
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
WATER QUALITY - DETERMINATION OF FREE CHLORINE AND TOTAL CHLORINE - PART 2: COLORIMETRIC METHOD USING N, N-DIETHYL-1, 4-PHENYLENEDIAMINE FOR ROUTINE CONTROL PURPOSES
01-08-2018
12-01-2013
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
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