ÖNORM EN ISO 9509

Water quality - Method for assessing the inhibition of nitrification of activated sludge micro-organisms by chemicals and waste water (ISO 9509:1989)

STANDARD published on 1.3.1995

German -
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German -

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The information about the standard:

Designation standards: ÖNORM EN ISO 9509
Note: WITHDRAWN
Publication date standards: 1.3.1995
The number of pages: 9
Approximate weight : 27 g (0.06 lbs)
Country: Austrian technische Norm
Category: Technical standards ÖNORM