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AFNOR
NF EN ISO 17657-4
En Vigor
2007-12-01
Resistance welding - Welding current measurement for resistance welding
- Part 4 : calibration system
AFNOR
NF EN 13651
En Vigor
2002-07-01
Soil improvers and growing media - Extraction of calcium chloride/DTPA
(CAT) soluble nutrients
AFNOR
NF EN IEC 80000-13
En Vigor
2025-04-11
Quantities and units - Part 13: Information science and technology
AFNOR
NF EN 15688
En Vigor
2008-10-01
Fertilizers - Determination of urease inhibitor N-(n-butyl)
thiophosphoric triamide (NBPT) using high-performance liquid
chromatography (HPLC)
