BS EN ISO 23697-2:2025

Water quality — Determination of total bound nitrogen (ST-TNb) in water using small-scale sealed tubes. Chromotropic acid colour reaction.

STANDARD published on 22.12.2025

The information about the standard:

Designation standards: BS EN ISO 23697-2:2025
Publication date standards: 22.12.2025
The number of pages: 18
Approximate weight : 54 g (0.12 lbs)
Country: British technical standard
Category: Technical standards BS