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)
NORMA vydaná dňa 20.3.2019
Designation standards: UNE-EN ISO 7393-2:2019
Publication date standards: 20.3.2019
The number of pages: 27
Approximate weight : 81 g (0.18 lbs)
Country: Spanish technical standard
Kategória: Technické normy UNE