
Water quality — Determination of total bound nitrogen (ST-TNb) in water using small-scale sealed tubes — Part 2: Chromotropic acid colour reaction
NORMA vydaná dňa 2.2.2023
Designation standards: ISO 23697-2:2023
Publication date standards: 2.2.2023
The number of pages: 8
Approximate weight : 24 g (0.05 lbs)
Country: International technical standard
Kategória: Technické normy ISO