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05/30039357 DC : DRAFT MAY 2005

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

EN ISO 9509 - WATER QUALITY - METHOD FOR ASSESSING THE INHIBITION OF NITRIFICATION OF ACTIVATED SLUDGE MICRO-ORGANISMS BY CHEMICALS AND WASTE WATERS

Superseded date

31-07-2006

Published date

23-11-2012

EN ISO 9509

Committee
EH/3/5
DocumentType
Draft
PublisherName
British Standards Institution
Status
Superseded
SupersededBy

ISO 7890-1:1986 Water quality Determination of nitrate Part 1: 2,6-Dimethylphenol spectrometric method
ISO 6777:1984 Water quality — Determination of nitrite — Molecular absorption spectrometric method
ISO 11733:2004 Water quality — Determination of the elimination and biodegradability of organic compounds in an aqueous medium — Activated sludge simulation test
ISO 5667-16:2017 Water quality — Sampling — Part 16: Guidance on biotesting of samples
ISO 7150-1:1984 Water quality — Determination of ammonium — Part 1: Manual spectrometric method

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