BS-EN-ISO-9509 › Complete Document History
Water quality. Toxicity test for assessing the inhibition of nitrification of activated sludge microorganisms
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2006 EDITION - SLUDGE MICROORGANISMS - July 31, 2006
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Obsolete Revision Information: |
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AMD 8456 - AMENDMENT 1 - March 1, 1995
1995 EDITION - WATER QUALITY. METHOD FOR ASSE - Jan. 1, 1995 |