STN EN ISO 9509 (757746)

Water quality. Method for assessing the inhibition of nitrification of activated sludge micro-organisms by chemicals and waste water

NORM herausgegeben am 1.12.1998

Gedruckt (AUF ANFRAGE)

The information about the standard:

Designation standards: STN EN ISO 9509
Classification mark: 757746
Catalog number: 12954
Note: UNGÜLTIG
Publication date standards: 1.12.1998
Approximate weight : 21 g (0.05 lbs)
Country: Slovak technical standard
Kategorie: Technische Normen STN