Reference number
ISO 9509:1989
ISO 9509:1989
Water quality — Method for assessing the inhibition of nitrification of activated sludge micro-organisms by chemicals and waste waters
Edition 1
1989-10
Withdrawn
ISO 9509:1989
17241
Withdrawn (Edition 1, 1989)

General information

  •  : Withdrawn
     : 1989-10
    : Withdrawal of International Standard [95.99]
  •  : 1
     : 6
  • ISO/TC 147/SC 5
    13.060.70 
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