PN EN ISO 7393-2:2018现行
Water Quality - Determination Of Free Chlorine And Total Chlorine - Part 2: Colorimetric Method Using N,N-Dialkyl-1,4-Phenylenediamine, For Routine Control Purposes (Iso 7393-2:2017)
出版：Polish Committee for Standardization
专家解读视频
2018 [24/04/2018]2011 [05/08/2011]
Supersedes PN ISO 7393-2. (08/2011)
EN ISO 7393-2 : 2018 - Identical
ISO 7393-2 : 2017 - Identical
ISO 7393-2 : 1985 - Identical
ISO 7393-2 : 2017 - Identical
EN ISO 7393-2 : 2018 - Identical
EN ISO 7393-2:2018 - Identical
