
Water Quality - Determination Of Free Chlorine And Total Chlorine - Part 2: Colorimetric Method Using N,n-diethyl-1,4-phenylenediamine, For Routine Control Purposes
出版:Polish Committee for Standardization

專家解讀視頻
1997 [11/08/1997]
ISO 7393-2:1985 - Identical
EN ISO 7393-2:2017 - Identical
EN ISO 7393-2:2018 - Identical