Committee:
GT 1 Soil improvers and growing media
GT 2 Agricultura ecológica
GT 3 Plant biostimulants and agricultural micro-organisms
ISO/TC 134 Fertilizers, soil conditioners and beneficial substances
CEN/TC 223 Soil improvers and growing media
CEN/TC 260 Fertilizers and liming materials
CEN/TC 455 Plant Biostimulants
Standards developed by the committee: CTN 142: 379
Status: VIGENTE / 2024-09-25
Soil improvers and growing media - Determination of temperature-time profiles during composting and digestion
Status: VIGENTE / 2024-09-03
Soil improvers and growing media - Determination of particle size distribution
Status: VIGENTE / 2024-07-24
Fertilizers, liming materials and inhibitors - Determination of the quantity (declared by mass or volume)
Inorganic fertilizers - Determination of methylen-urea oligomers using high-performance liquid chromatography (HPLC)
Inorganic fertilizers - Determination of nitrogen content in IBDU (isobutylidenediurea) and CDU (crotonylidenediurea)
Inorganic fertilizers - Determination of extracted phosphorus P2O5
Status: VIGENTE / 2024-06-04
Fertilizers - Comparison of the CEN/TC 260/WG 7 ring test results with tolerances given in the Regulation (EC) Nr 2003/2003 Annex II and conclusions
Fertilizers - Determination of boron in concentrations > 10 % using acidimetric titration
Fertilizers - Determination of boron in concentrations = 10 % using spectrometry with azomethine-H
Fertilizers - Determination of chlorides in the absence of organic material
Fertilizers - Determination of molybdenum in concentrations = 10 % using spectrometry of a complex with ammonium thiocyanate
Fertilizers - Determination of 3,4-dimethyl-1H-pyrazole phosphate (DMPP) - Method using high-performance liquid chromatography (HPLC)
Fertilizers - Determination of nitrification inhibitor DMPSA in fertilizers - Method using high-performance liquid chromatography (HPLC)
Fertilizers - Determination of magnesium by complexometry
Fertilizers - Determination of magnesium by atomic absorption spectrometry
Fertilizers - Determination of the sodium extracted by flame-emission spectrometry
Fertilizers - Manganimetric determination of extracted calcium following precipitation in the form of oxalate
Status: VIGENTE / 2024-03-27
Soil improvers and growing media - Determination of physical properties - Dry bulk density, air volume, water volume, shrinkage value and total pore space
Status: VIGENTE / 2024-03-20
Inorganic fertilizers - Determination of cyanamide nitrogen
Inorganic fertilizers - Determination of total nitrogen in calcium cyanamide nitrate free
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