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Normas AFNOR

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AFNOR

NF X31-122
En Vigor
1999-12-01
Soil quality - Extraction of boron soluble in boiling water
AFNOR

NF X31-120
En Vigor
2024-02-28
Soil quality - Determination of copper, iron, manganese and zinc contents - Extraction by means of ammonium acetate in presence of EDTA
AFNOR

NF X31-106
En Vigor
2002-09-01
Soil quality - Determination of active limestone content
AFNOR

NF X60-000
En Vigor
2016-04-16
Industrial maintenance - Maintenance function