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AFNOR
AFNOR
NF EN ISO 20227
En Vigor
2017-07-05
Water quality - Determination of the growth inhibition effects of waste
waters, natural waters and chemicals on the duckweed Spirodela polyrhiza
- Method using a stock culture independent microbiotest
AFNOR
NF EN 50131-2-7-1/A1
En Vigor
2014-05-30
Alarm systems - Intrusion and hold-up systems - Part 2-7-1 : intrusion
detectors - Glass break detectors (acoustic)
AFNOR
