65.080 - Fertilizers

This document specifies a method for the determination of traces of perchlorate with liquid chromatography and tandem mass spectrometry detection (LC‐MS/MS). The method is applicable to mineral fertilizers.

This document specifies a method to measure the total sulfur content in fertilizer and soil conditioner materials. This method is applicable for measuring total sulfur concentration in solid and liquid fertilizers and its raw inputs in the range of 0,1 % to 97 %.

This document is applicable to the sampling of mineral fertilizers and liming materials supplied or ready for supply to third parties, as a lot or in smaller lots, where such supply or readiness for supply is subject to legal requirements. This document specifies plans and methods of sampling of a lot of solid fertilizer or liming material, if sampling in motion is not possible, to obtain samples from bulk static heaps in order to ascertain compliance with legal requirements, in particular in re...view more

This document establishes a method for the determination of monosilicic acid concentrations in nonliquid fertilizer materials. Monosilicic acid is reported as silicon (Si). This extraction method is applicable to the detection of monosilicic acid in nonliquid fertilizer products, blended products, and beneficial substances at silicon (Si) concentrations of 2 to 84 g/kg, with a limit of detection (LOD) of 0,6 g/kg Si, and a limit of quantification (LOQ) of 2 g/kg correlating well with plant uptak...view more

This document specifies a method for the determination of the speed and effectiveness of the neutralizing potential of calcium carbonate, calcium magnesium carbonate and calcium magnesium silicate liming materials by potentiometric titration with hydrochloric acid.
For liming materials coarser than 1 mm, it is essential to prepare the sample of a liming material by following exactly the description of Annex A.
This method is applicable only to liming materials with a maximum particle size of 6...view more

This document specifies the test procedure for the determination of the salt out temperature (SOT), also known as the crystallization temperature (CT) of liquid (fluid) fertilizers, using an inexpensive and simple technique. This method might not be applicable to the binary and ternary fertilizers, especially with regards to the last crystal to disappear (LCTD). Some of these exceptions are discussed in the procedure (Clause 8).

This document specifies two methods for the determination of the neutralizing value (NV) of liming materials. Method A is applicable to all liming materials except silicate liming materials. NOTE 1 Examples of hard liming materials are limestone and dolomite. Examples of soft liming materials are chalk, marl and burnt lime. Method B is applicable to all liming materials. Neither method correctly takes into account the potential neutralizing value of material containing more than 3 % P2O5. For a ...view more

This European Standard describes a method to determine the aerobic biological activity of growing media and soil improvers or constituents thereof by measuring the oxygen uptake rate (OUR). The oxygen uptake rate is an indicator of the extent to which biodegradable organic matter is being broken down within a specified time period. The method is not suitable for material with a content of particle sizes > 10 mm exceeding 20 %.

This document describes a method to determine the aerobic biological activity of growing media and soil improvers or constituents thereof by measuring the oxygen uptake rate (OUR). The oxygen uptake rate is an indicator of the extent to which biodegradable organic matter is being broken down within a specified time period. The method is not suitable for material with a content of particle sizes > 10 mm exceeding 20 %.

This document specifies a method for the extraction of water soluble phosphorus. The method is applicable to all fertilizers, including compound fertilizers, where water soluble phosphorus is to be determined.

This document specifies a method for the determination of traces of perchlorate in mineral fertilizers by ion chromatography and conductivity detection (IC-CD).

This document specifies a method for the determination of traces of perchlorate in mineral fertilizers by ion chromatography and conductivity detection (IC-CD).

This European Standard defines terms relating to liming materials.
An index of all terms defined in this part of EN 12944, with their French and German equivalents is given in Annex A.
A general index of all terms defined in all three parts of EN 12944, with their French and German equivalents, is given in Annex B.

This European Technical Specification specifies a method for the determination of the lime requirement of acid soils to target pH levels at requested time of maintenance as determined by reaction with 0,1 mol/l ammonium acetate pH 5,5.
Due to general soil buffering systems, the method is applicable to all soils which are acid enough to dissociate hydrogen ions from the soil colloid system to depress the pH of the buffer solution.

This European Standard defines terms relating to liming materials.
An index of all terms defined in this part of EN 12944, with their French and German equivalents; is given in Annex A.
A general index of all terms defined in all three parts of EN 12944, with their French and German equivalents, is given in Annex B.

This document specifies a method for the determination of the lime requirement of acid soils to target pH levels at requested time of maintenance as determined by reaction with 0,1 mol/l ammonium acetate pH 5,5.
Due to general soil buffering systems, the method is applicable to all soils which are acid enough to dissociate hydrogen ions from the soil colloid system to depress the pH of the buffer solution.
NOTE 1   The method originates from research in Canada and Norway, see [1] and [2].
NOTE ...view more

This method specifies a method for the determination of the nitrification inhibitor 2-(3,4-dimethyl-pyrazol-1-yl-succinic acid (DMPSA) using high-performance liquid chromatography (HPLC). The method is applicable to all mineral fertilizers.

This document specifies two methods for the determination of the particle size distribution of liming materials. Method A (the dry sieving method) is applicable to all liming materials except wet and paste-like products. Method A is not applicable if blinding, caking, electrostatic charges or agglomeration occur after drying. Method B (the wet sieving method) is applicable to products which are susceptible to blinding, caking, electrostatic charges or agglomeration after drying. Method B can be ...view more

This document specifies a method for determining the reactivity of calcium carbonate and calcium magnesium carbonate liming materials. It assesses the speed and effectiveness of their neutralising potential by automatic titration with citric acid. This method is applicable only to liming materials with a maximum particle size of 6,3 mm determined in accordance with ISO 20977. NOTE For marble dolomite (BET procedure as defined in ISO 9277 below 500 m2/kg), see EN 14984.

This document specifies a method for the determination of nitrification inhibitor 2-(3,4-dimethyl-pyrazol-1-yl)-succinic acid (DMPSA) using high-performance liquid chromatography (HPLC), which is applicable to all mineral fertilizers.

This document specifies the procedure for the analysis of humic acids and hydrophobic fulvic acids which is applicable to dry and liquid materials used as ingredients in commercial fertilizers, soil amendments, and geological deposits.

This document specifies the procedure for determination of total and water extractable molybdenum in fertilizers containing less than or equal to 10 % molybdenum. The extraction methods are specified in EN 260172 and/or EN 260176.

This document specifies the procedure for determination of total and water extractable boron in mineral fertilizers containing less than or equal to 10 % boron using spectrometry with azomethine-H. The method is not suitable for fertilizers with Fe concentrations more than twenty times higher than the concentration of boron.

This European Standard specifies a method for the determination of total and water extractable boron in mineral fertilizers containing more than 10 % boron.
This method is applicable to water and aqua regia fertilizer extracts obtained according to prEN 16962 and/or prEN 16964.
NOTE    A method used for determination of boron in mineral fertilizers containing less than 10 % of boron (spectrophotometric determination by azomethine-H) can be also used for the scope of this method after appropriate...view more

This European Standard specifies a method for the determination of total and water extractable boron in mineral fertilizers containing less than or equal to 10 % boron. The method is not suitable for fertilizers with Fe concentrations more than twenty times higher than the concentration of boron.
This method is applicable to water and aqua regia fertilizer extracts obtained according to EN 16962 and/or EN 16964.
The method can also be used for the determination of boron in mineral fertilizers ...view more

This European Standard specifies a method for the determination of total and water extractable boron in mineral fertilizers containing more than 10 % boron.
This method is applicable to water and aqua regia fertilizer extracts obtained according to EN 16962 and/or EN 16964.
NOTE   A method used for the determination of boron in mineral fertilizers containing less than or equal to 10 % of boron (spectrophotometric determination by azomethine-H) can be also used for the scope of this method after ...view more

This European Standard specifies a method for determination of total and water extractable molybdenum in mineral fertilizers containing less than or equal to 10 % molybdenum.
This method is applicable to water and aqua regia fertilizer extracts obtained according to EN 16962 and/or EN 16964.

The document specifies a method for the chromatographic determination of the chelating agent [S,S]-EDDS in fertilizers. The method allows the identification and the determination of the total concentration of the water soluble fraction of this chelating agent. It does not allow to distinguish between the free form and the metal bound form of the chelating agent. This method is applicable to EC-fertilizers containing chelates of one or more of the following micro-nutrients: cobalt, copper, iron, ...view more

This European Standard specifies the procedure for total extraction of boron, cobalt, copper, iron, manganese, molybdenum and zinc with aqua regia from mineral fertilizers containing one or more micro-nutrients.
The extracts can be analysed according to WI 00260173, prEN 16963, prEN 16965, WI 00260179, WI 00260180 and WI 00260182.
NOTE   This method is also suitable for the extraction of cadmium, chromium, nickel and lead to be determined according to EN 16319; the extraction of mercury to be d...view more

This European Standard specifies the procedure for extracting water soluble forms of boron, cobalt, copper, iron, manganese, molybdenum and zinc from mineral fertilizers containing one or more micro-nutrients and the procedure for removal of organic compounds from the water extracts.
The extracts can be analysed according to WI 00260173, prEN 16963, prEN 16965, WI 00260179, WI 00260180 and WI 00260182.

This European Standard specifies a method for the determination of boron, cobalt, copper, iron, manganese, molybdenum and zinc in fertilizer extracts using inductively coupled plasma-atomic emission spectrometry (ICP-AES).
This method is applicable to water and aqua regia fertilizer extracts prepared according to prEN 16962 and/or prEN 16964.
NOTE   In most cases, the presence of small quantities of organic matter will not affect determinations by ICP-AES and it is not necessary to apply organic...view more

This European Standard specifies a method for the determination of cobalt, copper, iron, manganese and zinc in fertilizer extracts using flame atomic absorption spectrometry (FAAS).
This method is applicable to water and aqua regia fertilizer extracts obtained according to prEN 16962 and/or prEN 16964.
NOTE   In most cases, the presence of small quantities of organic matter will not affect determinations by FAAS and it is not necessary to apply organic matter removal.

ISO 7409:2018 specifies the procedure for marking containers or labels for fertilizers. ISO 7409:2018 is applicable to all fertilizers in containers or bulk.

This European Standard specifies a method for the total extraction of boron, cobalt, copper, iron, manganese, molybdenum and zinc with aqua regia from mineral fertilizers containing one or more micro-nutrients.
The extracts can be analysed according to EN 16963, EN 16965, prEN 17041, prEN 17042 and prEN 17043.
This method is also suitable for the extraction of cadmium, chromium, nickel and lead to be determined according to EN 16319; the extraction of mercury to be determined according to EN 1...view more

This European Standard specifies a method for the extraction of water soluble forms of boron, cobalt, copper, iron, manganese, molybdenum and zinc from mineral fertilizers containing one or more micro-nutrients and the procedure for removal of organic compounds from the water extracts.
The extracts can be analysed according to EN 16963, EN 16965, prEN 17041, prEN 17042, prEN 17043 and CEN/TS 17060.

This European Standard specifies a method for the determination of cobalt, copper, iron, manganese and zinc in fertilizer extracts using flame atomic absorption spectrometry (FAAS).
This method is applicable to water and aqua regia fertilizer extracts obtained according to EN 16962 and/or EN 16964.
NOTE   In most cases, the presence of small quantities of organic matter will not affect determinations by FAAS and it is not necessary to apply organic matter removal.

This European Standard specifies a method for the determination of boron, cobalt, copper, iron, manganese, molybdenum and zinc in fertilizer extracts using inductively coupled plasma-atomic emission spectrometry (ICP-AES).
This method is applicable to water and aqua regia fertilizer extracts prepared according to EN 16962 and/or EN 16964.
NOTE   In most cases, the presence of small quantities of organic matter will not affect determinations by ICP-AES and it is not necessary to apply organic mat...view more

ISO 21263:2017 specifies a method for the determination of the slow release properties of nutrients from coated fertilizers. pH-dependent hydrolysis and degradation by biological or microbial mechanisms are excluded. The specified method is only applicable to products releasing any nutrients by means of a non-biological process (i.e. those where the nutrients are released by a physical mechanism). Microbial attack on the coating (e.g. sulfur coated fertilizers) and the consequences thereof are n...view more

This European Standard specifies a method for the chromatographic determination of the chelating agent [S,S]-EDDS in fertilizers. The method allows the identification and the determination of the total concentration of the water-soluble fraction of this chelating agent. It does not allow distinguishing between the free form and the metal bound form of the chelating agent.
This method is applicable to EC fertilizers containing chelates of one or more of the following micro-nutrients: cobalt, cop...view more

This European Standard specifies a method for the chromatographic determination of the iron chelated by each individual ortho(hydroxy)-ortho(hydroxy) isomer of the chelating agents [o,o] EDDHA, [o,o] EDDHMA and by HBED in fertilizers containing one or more of these substances, except for [o,o] EDDHMA and HBED mixes. The method allows the identification and the determination of the total concentration of water soluble iron chelates of these chelating agents. Also, after derivatization with Fe, th...view more

ISO 20702:2017 specifies the ion chromatography method for the determination of microamounts of water soluble inorganic anions, such as fluoride (F−), chloride (Cl−), bromide (Br−), iodide (I−), nitrite (NO2−) and thiocyanate (SCN−), in fertilizers.

This document describes and specifies the basic and premium requirements of products of natural origin and products from industrial processes to be used as liming materials in agriculture for raising the pH of soil (and water).

This European Standard specifies a method for the chromatographic determination of the iron chelated by each individual ortho(hydroxy)-ortho(hydroxy) isomer of the chelating agents [o,o] EDDHA, [o,o] EDDHMA and by HBED in fertilizers containing one or more of these substances, except for [o,o] EDDHMA and HBED mixes. The method allows the identification and the determination of the total concentration of water soluble iron chelates of these chelating agents. Also, after derivatization with Fe, th...view more

This European Standard specifies a method for the determination of the content of arsenic in
fertilizers and liming materials using inductively coupled plasma-atomic emission spectrometry (ICPAES)
after aqua regia dissolution." Limits of quantification are dependent on the sample matrix as
well as on the instrument, but can roughly be expected to be 1,5 mg/kg for As.
!NOTE The term fertilizer is used throughout the body of this European Standard and includes liming
materials unless otherwis...view more

This Technical report covers the technical description of the experimental work which has beeeen performed in order to elaborate methods of sampling of fertilizers and liming materials from static heaps.

This European Standard specifies a method for the extraction of water-soluble calcium, magnesium, sodium and sulfur (in the form of sulfates), so that the same extract can be used for the determination of each nutrient required.
The method is solely applicable to fertilizers listed in Regulation (EC) 2003/2003, Annex I [2]), for which a declaration of the water-soluble calcium, magnesium, sodium, and sulfur (in the form of sulfates) is provided for in this Regulation.

This European Standard specifies a method for the determination of the content of mercury in
fertilizers !and liming materials" after extraction with aqua regia and the detection of mercury by
vapour generation (VG) coupled to an atomic absorption spectrometer or an inductively coupled
plasma-atomic emission spectrometer. A limit of quantification of 0,01 mg/kg is to be expected.
!NOTE The term fertilizer is used throughout the body of this European Standard and includes
liming materials un...view more

This Technical Specification specifies the procedure for determination of total and water extractable molybdenum in mineral fertilizers containing more than 10 % molybdenum. This method is applicable to water and aqua regia fertilizer extracts obtained according to EN 260172 and/or EN 260176.

This European Standard describes and specifies the requirements of products of natural origin and products from industrial processes of basic and premium quality to be used as liming materials in agriculture for raising the pH of soil (and water).

This Technical Specification specifies the procedure for determination of total and water extractable molybdenum in mineral fertilizers containing more than 10 % molybdenum. This method is applicable to water and aqua regia fertilizer extracts obtained according to EN 260172 and/or EN 260176.