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NEN EN ISO 9509 : 2006

Current

Current

The latest, up-to-date edition.

WATER QUALITY - TOXICITY TEST FOR ASSESSING THE INHIBITION OF NITRIFICATION OF ACTIVATED SLUDGE MICROORGANISMS

Published date

12-01-2013

National foreword
Committees responsible
Method
1. Scope
2. Normative references
3. Definitions
4. Principle
5. Reagents and materials
6. Apparatus
7. Procedure
8. Calculation and expression of results
9. Validity of results
10. Test report
Annexes
A. Determination of the nitrifying activity of an
     activated sludge
B. Example for preparation of the test
C. Bibliography

States a method for assessing the short-term inhibitory effect of waters, wastewaters or test substances on nitrifying bacteria in activated sludge.

DevelopmentNote
Supersedes NEN 6511. (10/2002)
DocumentType
Standard
PublisherName
Netherlands Standards
Status
Current
Supersedes

Standards Relationship
ISO 9509:2006 Identical
BS EN ISO 9509:2006 Identical
UNI EN ISO 9509 : 2007 Identical
I.S. EN ISO 9509:2006 Identical
EN ISO 9509:2006 Identical
UNE-EN ISO 9509:2007 Identical
DIN EN ISO 9509:2006-10 Identical

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