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AFNOR

FD U44-166
En Vigor
2015-12-09
Growing media - Bioassay for assessment of plantlets growth
AFNOR

NF EN 13038
Anulada
2012-02-25
Soil improvers and growing media - Determination of electrical conductivity
AFNOR

FD CEN/TR 17040
En Vigor
2017-06-07
Fertilizers and liming materials - Sampling of static heaps - Technical report on experimental sampling trials performed under mandate M/454
AFNOR

NF EN 15928
En Vigor
2010-11-01
Fertilizers - Determination of the fineness of grinding (dry procedure)