NF T90-341*NF EN ISO 9509:2006
Water quality - Toxicity test for assessing the inhibition of nitrification of activated sludge microorganisms.

Standard No.

NF T90-341*NF EN ISO 9509:2006

Release Date

2006

Published By

Association Francaise de Normalisation

Latest

NF T90-341*NF EN ISO 9509:2006

Replace

NF T90-341:1995

NF T90-341*NF EN ISO 9509:2006 history

• 0000 NF T90-341:2006
• 1995 NF T90-341:1995 Water quality. Method for assessing the inhibition of nitrification of activated sludge micro-organisms by chemicals and waste water.