STN EN ISO 23697-2 (757494)

Water quality - Determination of total bound nitrogen (ST-TNb) in water using small-scale sealed tubes - Part 2: Chromotropic acid colour reaction (ISO 23697-2:2023)

STANDARD published on 1.5.2026

English -
Print design (ON REQUEST)

The information about the standard:

Designation standards: STN EN ISO 23697-2
Classification mark: 757494
Catalog number: 142130
Publication date standards: 1.5.2026
Approximate weight : 30 g (0.07 lbs)
Country: Slovak technical standard
Category: Technical standards STN