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Norm
ÖNORM M 6231
Issue date: 1988 03 01
Requirements for the ecological survey of stagnant waters
Withdrawn: 2001 10 01
Publisher:
Austrian Standards International
Format:
Digital | 11 Pages
Language:
German
Currently valid:
Optionally co-design standards:
ICS
ÖNORM M 6231
2001 10 01
Guidelines for the ecological survey and evaluation of stagnant surface waters
Norm
Norm
Issue date :
2001 10 01
Guidelines for the ecological survey and evaluation of stagnant surface waters
