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: 343
Status: VIGENTE / 2025-06-05
Carbonate liming materials - Determination of reactivity - Automatic titration method with citric acid
Fertilizers - Determination of chelating agents in fertilizers by chromatography - Part 1: Determination of EDTA, HEEDTA and DTPA by ion chromatography
Fertilizers - Determination of perchlorate in mineral fertilizers by ion chromatography and conductivity detection (IC-CD)
Fertilizers and liming materials - Determination of arsenic by inductively coupled plasma-atomic emission spectrometry (ICP-AES) after aqua regia dissolution
Fertilizers and liming materials - Determination of cadmium, chromium, lead and nickel by inductively coupled plasma-atomic emission spectrometry (ICP-AES) after aqua regia dissolution
Fertilizers and liming materials - Determination of chromium (VI) by photometry (method A) and by ion chromatography with spectrophotometric detection (method B)
Fertilizers and liming materials - Determination of mercury by vapour generation (VG) after aqua regia dissolution
Status: VIGENTE / 2025-02-05
Liming materials - Determination of the breakdown of granulated calcium and calcium/magnesium carbonates under the influence of water
Fertilizers - Determination of chelating agents - Determination of iron chelated by EDDHSA by ion pair chromatography
Fertilizers - Determination of chelating agents - Determination of iron chelated by o,p-EDDHA by reversed phase HPLC
Fertilizers - Determination of different forms of nitrogen in the same sample, containing nitrogen as nitric, ammoniacal, urea and cyanamide nitrogen
Fertilizers - Determination of ammoniacal nitrogen
Fertilizers - Determination of nitric and ammoniacal nitrogen according to Devarda
Fertilizers - Determination of nitric and ammoniacal nitrogen according to Arnd
Fertilizers - Determination of nitric and ammoniacal nitrogen according to Ulsch
Fertilizers - Determination of the water-soluble potassium content
Fertilizers - Determination of urease inhibitor N-(n-butyl)thiophosphoric triamide (NBPT) using high-performance liquid chromatography (HPLC)
Fertilizers - Spectrophotometric determination of biuret in urea
Status: VIGENTE / 2024-12-04
Fertilizers - Description of the forms of the physical unit
Status: VIGENTE / 2024-11-27
Fertilizers, liming materials and inhibitors - Sampling and sample preparation - Part 4: Sampling for microbial presence
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