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 / 2021-07-01
Fertilizers - Crushing strength determination on fertilizers grains (Endorsed by Asociación Española de Normalización in July of 2021.)
Fertilizers - Determination of dust content (Endorsed by Asociación Española de Normalización in July of 2021.)
Straight ammonium nitrate fertilizers - Comparative study on the determination of porosity (oil retention) (Endorsed by Asociación Española de Normalización in July of 2021.)
Status: VIGENTE / 2021-04-07
Fertilizers - Determination of perchlorate in mineral fertilizers by liquid chromatography and tandem mass spectrometry detection (LC-MS/MS)
Status: VIGENTE / 2021-02-05
Liming materials - Determination of size distribution by dry and wet sieving
Fertilizers - Determination of N-(1,2-dicarboxyethyl)-D,L-aspartic acid (Iminodisuccinic acid, IDHA) using high-performance liquid chromatography (HPLC)
Fertilizers - Determination of calcium and formate in calcium foliar fertilizers
Fertilizers - Determination of bulk density (tapped) (ISO 5311:1992 modified)
Fertilizers - Determination of bulk density (loose) (ISO 3944:1992 modified)
Fertilizers - Determination of N-(n-Butyl)thiophosphoric acid triamide (NBPT) and N-(n-Propyl)thiophosphoric acid triamide (NPPT) - Method using high-performance liquid chromatography (HPLC)
Fertilizers - Determination of 3-methylpyrazole (MP) using high-performance liquid chromatography (HPLC)
Fertilizers - Determination of the fineness of grinding (dry procedure)
Fertilizers - Treatment with a cation exchange resin for the determination of the chelated micro-nutrient content and of the chelated fraction of micro-nutrients
Fertilizers and liming materials - Determination of water content - Guidelines and recommendations
Fertilizers and liming materials - Determination of cadmium content
Fertilizers and liming materials - Determination of carbon dioxide - Part 1: Method for solid fertilizers
Status: VIGENTE / 2021-02-01
Fertilizers - Determination of cold water insoluble nitrogen and hot water insoluble nitrogen in solid urea formaldehyde and methylene urea slow-release fertilizers and determination of the solubility of nutrient polymers in phosphate buffer solution with a pH of 7,5 at 100 °C (Endorsed by Asociación Española de Normalización in February of 2021.)
Status: VIGENTE / 2020-12-23
Soil improvers and growing media - Determination of the aerobic biological activity - Part 1: Oxygen uptake rate (OUR)
Status: VIGENTE / 2020-10-23
Fertilizers - Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods
Status: VIGENTE / 2020-05-10
Fertilizers and liming materials - Determination of carbon dioxide - Part 2: Method for liming materials
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