DIN EN ISO 7393-2 (2000-04)现行
Water quality - Determination of free chlorine and total chlorine Part 2: Colorimetric method using N,N-diethyl-1,4-phenylenediamine, for routine control purposes (ISO 7393-2:1985); English version of DIN EN ISO 7393-2
出版：German Institute for Standardisation (Deutsches Institut für Normung)
专家解读视频
Supersedes DIN 38408-4. (12/2000) DRAFT 2017 issued in April 2017. (04/2017)
NEN EN ISO 7393-2:2000 - Identical
SS EN ISO 7393-2 Ed. 1 (2000) - Identical
ISO 7393-2:1985 - Identical
NS EN ISO 7393-2 Ed. 1 (2000) - Identical
I.S. EN ISO 7393-2:2000 - Identical
NF EN ISO 7393-2:2000 - Identical
NBN EN ISO 7393-2:2000 - Identical
ONORM EN ISO 7393-2:2000 - Identical
BS EN ISO 7393-2:2000 - Identical
SN EN ISO 7393-2:2000 - Identical
UNI EN ISO 7393-2:2002 - Identical
UNE EN ISO 7393-2:2000 - Identical
EN ISO 7393-2:2017 - Identical
NS EN ISO 7393-2:2018 - Identical
EN ISO 7393-2:2018 - Identical
NEN EN ISO 7393-2:2018 - Identical
NF EN ISO 7393-2:2018 - Identical
