| Standard Number |
BS EN ISO 9509:2006 |
| Title |
Water quality. Toxicity test for assessing the inhibition of nitrification of activated sludge microorganisms |
| Status |
Current |
| Publication Date |
31 July 2006 |
| Cross References |
ISO 5667-16, ISO 6777, ISO 7150-1, ISO 11733, ISO 6107-1:2004, ISO 8192, ISO 9888:1999 |
| Replaces |
BS EN ISO 9509:1995, BS 6068-5.9:1990,ISO 9509:1989 |