ISO-7393-2 › Complete Document History
Water quality - Determination of free chlorine and total chlorine - Part 2: Colorimetric method using N,N-dialkyl-1,4-phenylenediamine, for routine control purposes

Complete Current Edition:
   2ND EDITION - Part 2: Colorimetric method using N,N-dialkyl-1,4-phenylenediamine, for routine control purposes - Dec. 1, 2017

Obsolete Revision Information:
   1ST EDITION - Part 2 : Colorimetric method using N,N-diethyl-1,4-phenylenediamine, for routine control purposes - Oct. 15, 1985