NEN-EN-ISO 9509
Water quality - Method for assessing the inhibition of nitrofication of activated sludge micro-organisms by chemicals and waste water
inactive
| Organization: | NEN |
| Publication Date: | 1 March 1995 |
| Status: | inactive |
| Page Count: | 12 |
| ICS Code (Examination of biological properties of water): | 13.060.70 |
| ICS Code (Liquid wastes. Sludge): | 13.030.20 |
Document History
September 1, 2006
Water quality - Toxicity test for assessing the inhibition of nitrification of activated sludge microorganisms
This International Standard specifies a method for assessing the short-term inhibitory effect of waters, waste waters or test substances on nitrifying bacteria in activated sludge. The inhibitory...
June 1, 2005
Water quality - Method for assessing the inhibition of nitrification of activated-sludge micro-organisms by chemicals and waste waters
This International Standard specifies a method for assessing the short-term inhibitory effect of waters, waste waters or test substances on nitrifying bacteria in activated sludge. The inhibitory...
NEN-EN-ISO 9509
March 1, 1995
Water quality - Method for assessing the inhibition of nitrofication of activated sludge micro-organisms by chemicals and waste water
A description is not available for this item.