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prEN 17755 Viešoji apklausa
Komentavimo iki data 2026-05-26
Neorganinės trąšos. Tam tikrų parametrų nustatymas

This document specifies a reference to the method for the determination of the following specific parameters in inorganic fertilizers: — granulometry; — organic carbon content; — dry matter content. This document is applicable to the fertilizing products blends where a blend is a mix of at least two of the following components: fertilizers, liming materials, soil improvers, growing media, inhibitors, plant biostimulants, and where the following category: inorganic fertilizers is the highest % in the blend by mass or volume, or in the case of liquid form by dry mass. If inorganic fertilizer is not the highest % in the blend, the European Standard for the highest % of the blend applies. In case a fertilizing product blend is composed of components in equal quantity, the user decides which standard to apply. Variations in analytical methods for fertilizing product blends can lead to differing results as some components or matrix interactions can affect the outcome. Validation procedures have shown that developed standard methods are robust and reliable across diverse product compositions, but possible interferences and unexpected results when analysing fertilizing product blends are possible.

Skaityti, komentuoti projektą Peržiūrėti metaduomenis
prEN 17761 Viešoji apklausa
Komentavimo iki data 2026-05-19
Neorganinės trąšos. Chloridų kiekio nustatymas didelį azoto kiekį turinčiose amonio nitrato trąšose

This document specifies a method for the determination of the chloride content in ammonium nitrate fertilizers of high nitrogen content. This document is applicable to the fertilizing products blends where a blend is a mix of at least two of the following components: fertilizers, liming materials, soil improvers, growing media, inhibitors, plant biostimulants, and where the following category: inorganic fertilizers is the highest % in the blend by mass or volume, or in the case of liquid form by dry mass. If inorganic fertilizer is not the highest % in the blend, the European Standard for the highest % of the blend applies. In case a fertilizing product blend is composed of components in equal quantity, the user decides which standard to apply. Variations in analytical methods for fertilizing product blends can lead to differing results as some components or matrix interactions can affect the outcome. Validation procedures have shown that developed standard methods are robust and reliable across diverse product compositions, but possible interferences and unexpected results when analysing fertilizing product blends are possible.

Skaityti, komentuoti projektą Peržiūrėti metaduomenis
prEN 17762 Viešoji apklausa
Komentavimo iki data 2026-05-19
Neorganinės trąšos. Vario kiekio nustatymas didelį azoto kiekį turinčiose amonio nitrato trąšose

This document specifies a method for the determination of the copper content in ammonium nitrate fertilizers of high nitrogen content. This document is applicable to the fertilizing products blends where a blend is a mix of at least two of the following components: fertilizers, liming materials, soil improvers, growing media, inhibitors, plant biostimulants, and where the following category: inorganic fertilizers is the highest % in the blend by mass or volume, or in the case of liquid form by dry mass. If inorganic fertilizer is not the highest % in the blend, the European Standard for the highest % of the blend applies. In case a fertilizing product blend is composed of components in equal quantity, the user decides which standard to apply. Variations in analytical methods for fertilizing product blends can lead to differing results as some components or matrix interactions can affect the outcome. Validation procedures have shown that developed standard methods are robust and reliable across diverse product compositions, but possible interferences and unexpected results when analysing fertilizing product blends are possible.

Skaityti, komentuoti projektą Peržiūrėti metaduomenis
prEN 17760 Viešoji apklausa
Komentavimo iki data 2026-05-05
Neorganinės trąšos. Didelį azoto kiekį turinčių amonio nitrato trąšų dalelių matmenų nustatymas

This document specifies a method for the determination of the mass fractions of ammonium nitrate fertilizers of high nitrogen content that passes certain mesh sieves (0,5 mm and 1,0 mm). This document is not applicable to fertilizing products blends, other than ammonium nitrate fertilizers of high nitrogen content.

Skaityti, komentuoti projektą Peržiūrėti metaduomenis
prEN 17403 Viešoji apklausa
Komentavimo iki data 2026-05-05
Neorganinės trąšos. Šaltame vandenyje netirpaus azoto ir karštame vandenyje netirpaus azoto nustatymas lėtai veikiančiose biriosiose karbamidformaldehidinėse bei metilenkarbamidinėse trąšose ir maisto medžiagų polimerų tirpumo pH 7,5 fosfatiniame buferiniame tirpale esant 100 °C nustatymas

This document specifies a method for the determination of the cold and hot water insoluble nitrogen content in solid urea formaldehyde and methylene urea slow-release fertilizers and for the determination of the solubility of nutrient polymers in a phosphate buffer solution with a pH of 7,5 at 100 °C, in their pure form in inorganic fertilizers. This document is not applicable to the following nutrient polymers: liquid methylene urea.

Skaityti, komentuoti projektą Peržiūrėti metaduomenis
prEN 17758 Viešoji apklausa
Komentavimo iki data 2026-05-05
Trąšos ir kalkinimo medžiagos. Chloridų kiekio nustatymas potenciometrinio titravimo metodu

This document specifies a method for the determination of the chloride content in organic fertilizers, organo-mineral fertilizers, inorganic fertilizers and liming materials by potentiometric titration. This document is applicable to fertilizing product blends, where a blend is a mix of at least two of the following components, fertilizers and liming materials, and where the following category, organic fertilizers, organo-mineral fertilizers, inorganic fertilizers or liming materials, is the highest % in the blend by mass or volume, or in the case of liquid form, by dry mass. If organic fertilizers, organo-mineral fertilizers, inorganic fertilizers, or liming materials is not the highest % in the blend, the European Standard for the highest % of the blend applies. In case a fertilizing product blend is composed of components in equal quantity, the user decides which standard to apply. NOTE Variations in analytical methods for fertilizing product blends can lead to differing results as some components or matrix interactions can affect the outcome. Validation procedures have shown that developed standard methods are robust and reliable across diverse product compositions, but possible interferences and unexpected results when analysing fertilizing product blends are possible.

Skaityti, komentuoti projektą Peržiūrėti metaduomenis
prEN 18316 Viešoji apklausa
Komentavimo iki data 2026-05-05
Neorganinės trąšos. Visuminio K2O kiekio nustatymas

This document specifies two different methods (Method A and B) for the determination of the content of potassium (expressed as K2O) in inorganic fertilizers. Method A specifies a gravimetric method. Method B specifies the method using inductively coupled plasma optical emission spectrometry (ICP-OES). This document is applicable to fertilizing product blends, where the blend is a mix of at least two of the following components, fertilizers, liming materials, soil improvers, growing media, inhibitors and plant biostimulants, and where inorganic fertilizers are the highest % in the blend by mass or volume, or in the case of liquid form, by dry mass. If inorganic fertilizers are not the highest % in the blend, the European Standard for the highest % of the blend applies. In case a fertilizing product blend is composed of components in equal quantity, the user decides which standard to apply. NOTE Variations in analytical methods for fertilizing product blends can lead to differing results as some components or matrix interactions can affect the outcome. Validation procedures have shown that developed standard methods are robust and reliable across diverse product compositions, but possible interferences and unexpected results when analysing fertilizing product blends are possible.

Skaityti, komentuoti projektą Peržiūrėti metaduomenis
prEN 15478 Viešoji apklausa
Komentavimo iki data 2026-05-05
Neorganinės trąšos. Visuminio azoto kiekio nustatymas karbamide, metilenkarbamide ir karbamido formaldehide

This document specifies a method for the determination of the content of total nitrogen in urea, methylene-urea and urea formaldehyde in their pure form in inorganic fertilizers.

Skaityti, komentuoti projektą Peržiūrėti metaduomenis
prEN 18318 Viešoji apklausa
Komentavimo iki data 2026-05-05
Organinės-mineralinės trąšos. Tam tikrų inhibitorių nustatymas

This document specifies references to the methods for the determination of urease inhibiting compounds in organo-mineral fertilizers. This document is applicable to fertilizing product blends where the blend is a mix of at least two of the following components: organic fertilizers and inorganic fertilizers to which urease inhibitors have been added. This document is not applicable to fertilizing product blends containing liming materials, soil conditioners, growing media or biostimulants.

Skaityti, komentuoti projektą Peržiūrėti metaduomenis
prEN 18319 Viešoji apklausa
Komentavimo iki data 2026-05-05
Trąšos, kalkinimo medžiagos ir inhibitoriai. Fosfonatų kiekio nustatymas jonų chromatografija su laidumo aptikimu (IC-CD)

This document specifies a method for the extraction and determination of phosphonates (P-PO3) in fertilizers, liming materials and inhibitors using ion chromatography and conductivity detection (IC-CD). This document is applicable to fertilizing product blends, where the blend is a mix of at least two of the following components, fertilizers, liming materials, soil improvers, growing media, inhibitors and plant biostimulants, and where the following category, fertilizers, liming materials and inhibitors, is the highest % in the blend by mass or volume, or in the case of liquid form, by dry mass. If fertilizers, liming materials and inhibitors is not the highest % in the blend, the European Standard for the highest % of the blend applies. In case a fertilizing product blend is composed of components in equal quantity, the user decides which standard to apply. NOTE Variations in analytical methods for fertilizing product blends can lead to differing results as some components or matrix interactions can affect the outcome. Validation procedures have shown that developed standard methods are robust and reliable across diverse product compositions, but possible interferences and unexpected results when analysing fertilizing product blends are possible.

Skaityti, komentuoti projektą Peržiūrėti metaduomenis
prEN 18317 Viešoji apklausa
Komentavimo iki data 2026-04-28
Organinės-mineralinės trąšos. Ureazės inhibitoriaus N-(n-butil)tiofosforo triamido (NBPT) kiekio nustatymas

This document specifies a method for the determination of the urease inhibitor N-(n-butyl)thiophosphoric triamide (NBPT) and its oxidate form N-(n-butyl)phosphoric triamide (NBPTO) in urea based organo-mineral fertilizers, using the liquid chromatography coupled with triple quadrupole mass spectrometry (LC-MSQQQ). This document is applicable to organo-mineral fertilizers. NOTE It is possible to apply this method to inorganic fertilizers; in this case a validation is carried out by the laboratory for the procedure and data generated.

Skaityti, komentuoti projektą Peržiūrėti metaduomenis
prEN 17754 Viešoji apklausa
Komentavimo iki data 2026-04-21
Neorganinės trąšos. Tam tikrų mikroelementų nustatymas

This document specifies references to methods for the determination of the content of the following specific micronutrients in inorganic fertilizers: — the total boron content; — the total cobalt content; — the total copper and zinc content; — the total iron content; — the total manganese content; — total molybdenum content; — the water-soluble boron content; — the water-soluble cobalt content; — the water-soluble copper content; — the water-soluble iron content; — the water-soluble manganese content; — the water-soluble molybdenum content; — the water-soluble zinc content; — the sum of declared micronutrients in compound micronutrient fertilizers. This document is applicable to the fertilizing products blends where a blend is a mix of at least two of the following components: fertilizers, liming materials, soil improvers, growing media, inhibitors, plant biostimulants, and where the following category: inorganic fertilizers is the highest % in the blend by mass or volume, or in the case of liquid form by dry mass. If inorganic fertilizer is not the highest % in the blend, the European Standard for the highest % of the blend applies. In case a fertilizing product blend is composed of components in equal quantity, the user decides which standard to apply. Variations in analytical methods for fertilizing product blends can lead to differing results as some components or matrix interactions can affect the outcome. Validation procedures have shown that developed standard methods are robust and reliable across diverse product compositions, but possible interferences and unexpected results when analysing fertilizing product blends are possible. An overview of the references to methods for the determination of the specific micronutrients is given in Table 1.

Skaityti, komentuoti projektą Peržiūrėti metaduomenis
prEN 17757 Viešoji apklausa
Komentavimo iki data 2026-04-21
Neorganinės trąšos. Tam tikrų maisto medžiagų nustatymas

This document specifies references to methods for the determination of the content of the following specific nutrients in inorganic fertilizers: — the total nitrogen content; — the ammoniacal nitrogen content; — the nitric nitrogen content; — the urea nitrogen content; — the content of nitrogen from isobutylidenediurea (IBDU) and crotonylidenediurea (CDU); — the cyanamide nitrogen content; — the methylene-urea nitrogen content (and urea formaldehyde, if applicable); — the total phosphorus content; — the water-soluble phosphorus content; — the neutral ammonium citrate soluble phosphorus content; — the formic acid soluble phosphorus content; — the total potassium content; — the water-soluble potassium content; — the total magnesium content; — the water-soluble magnesium content; — the total calcium content; — the water-soluble calcium content; — the total sulfur content; — the water-soluble sulfur content; — the total sodium content; — the water-soluble sodium content. This document is applicable to the fertilizing products blends where a blend is a mix of at least two of the following components: fertilizers, liming materials, soil improvers, growing media, inhibitors, plant biostimulants, and where the following category: inorganic fertilizers is the highest % in the blend by mass or volume, or in the case of liquid form by dry mass. If inorganic fertilizer is not the highest % in the blend, the European Standard for the highest % of the blend applies. In case a fertilizing product blend is composed of components in equal quantity, the user decides which standard to apply. Variations in analytical methods for fertilizing product blends can lead to differing results as some components or matrix interactions can affect the outcome. Validation procedures have shown that developed standard methods are robust and reliable across diverse product compositions, but possible interferences and unexpected results when analysing fertilizing product blends are possible.

Skaityti, komentuoti projektą Peržiūrėti metaduomenis
prEN 17753 Viešoji apklausa
Komentavimo iki data 2026-04-21
Neorganinės trąšos. Tam tikrų teršalų nustatymas

This document specifies references to methods for the determination of the following contaminants: mercury, cadmium, nickel, copper, zinc, arsenic, lead, chromium(VI), biuret, perchlorate, total chromium and phosphonates content in inorganic fertilizers. For the mercury, cadmium, nickel, copper, zinc, arsenic, lead, perchlorate and total chromium content: This document is applicable to the fertilizing products blends where a blend is a mix of at least two of the following components: fertilizers, liming materials, soil improvers, growing media, inhibitors, plant biostimulants, and where the following category: inorganic fertilizers is the highest % in the blend by mass or volume, or in the case of liquid form by dry mass. If inorganic fertilizer is not the highest % in the blend, the European Standard for the highest % of the blend applies. In case a fertilizing product blend is composed of components in equal quantity, the user decides which standard to apply. For the chromium(VI) and biuret content: This document is applicable to the fertilizing products blends where a blend is a mix of at least two of the following components: fertilizers, liming materials, soil improvers, growing media, inhibitors, plant biostimulants, and where organic matter is present in at least one of the products in the blend. In case a fertilizing product blend is composed only of inorganic products, the European Standard for inorganic fertilizers applies. Variations in analytical methods for fertilizing product blends can lead to differing results as some components or matrix interactions can affect the outcome. Validation procedures have shown that developed standard methods are robust and reliable across diverse product compositions, but possible interferences and unexpected results when analysing fertilizing product blends are possible. An overview of the references to methods for the determination of the specific contaminants is given in Table 1. NOTE 1 The determination of copper and zinc in inorganic fertilizers as micronutrients is covered by prEN 17754. NOTE 2 The determination of copper in ammonium nitrate fertilizers of high nitrogen content is covered by CEN/TS 17751.

Skaityti, komentuoti projektą Peržiūrėti metaduomenis
prEN 17777 Viešoji apklausa
Komentavimo iki data 2026-04-14
Organinės ir organinės-mineralinės trąšos. Tam tikrų elementų nustatymas

This document specifies references to the methods for the determination of the following specific elements in organic and organo-mineral fertilizers: Determination of the total phosphorus content; Determination of the total potassium content; Determination of the total calcium content; Determination of the total magnesium content; Determination of the total sodium content; Determination of the total sulphur content; Determination of the inorganic arsenic content; Determination of the cadmium content; Determination of the total chromium content; Determination of the total mercury content; Determination of the total nickel content; Determination of the total lead content; Determination of the total copper content; Determination of the total zinc content; Determination of the water-soluble calcium content; Determination of the water-soluble magnesium content; Determination of the water-soluble sodium content; Determination of the water-soluble sulphur content. This document specifies references to the methods for the determination of the following specific elements in organo-mineral fertilizers: Determination of the water-soluble phosphorus content; Determination of the water-soluble potassium content; Determination of the neutral ammonium citrate soluble phosphorus content Determination of the formic acid soluble phosphorus content; Determination of the total boron content; Determination of the total cobalt content; Determination of the total iron content Determination of the total manganese content Determination of the total molybdenum content; Determination of the water-soluble boron content; Determination of the water-soluble cobalt content; Determination of the water-soluble copper content; Determination of the water-soluble iron content; Determination of the water-soluble manganese content; Determination of the water-soluble molybdenum content; Determination of the water-soluble zinc content. The scope of the standards referenced in this document specifies in which cases the method is also applicable to blends.

Skaityti, komentuoti projektą Peržiūrėti metaduomenis
prEN 17775 Viešoji apklausa
Komentavimo iki data 2026-04-14
Organinės ir organinės-mineralinės trąšos. Neorganinio arseno kiekio nustatymas

This document specifies a method for extraction, separation, and determination of inorganic arsenic (iAs) in organic or organo-mineral fertilizers using anion-exchange high performance liquid chromatography (HPLC) or ion chromatography (IC) coupled to ICP-MS. This document is applicable to fertilizing product blends where a blend is a mix of at least two of the following components: fertilizers, liming materials, soil improvers, growing media, inhibitors, plant biostimulants and where the following category organic fertilizer or organo-mineral fertiliser is the highest % in the blend by mass or volume, or in the case of liquid form by dry mass. If the organic fertilizer or the organo-mineral fertilizer is not the highest % in the blend, the European Standard for the highest % of the blend applies. In case a fertilizing product blend is composed of components in equal quantity, the user decides which standard to apply. Variations in analytical methods for fertilizing product blends can lead to differing results as some components or matrix interactions can affect the outcome. Validation procedures have shown that developed standard methods are robust and reliable across diverse product compositions, but possible interferences and unexpected results when analysing fertilizing product blends are possible.

Skaityti, komentuoti projektą Peržiūrėti metaduomenis
prEN 17772 Viešoji apklausa
Komentavimo iki data 2026-04-07
Organinės ir organinės-mineralinės trąšos. Tam tikrų parametrų nustatymas

This document specifies references to the methods for the determination of the following parameters in organic and organo-mineral fertilizers: — Determination of the total organic carbon content; — Determination of the dry matter content. The method for the determination of the total organic carbon is not applicable to products containing urea-formaldehyde polymers or urea as long as there is no method available to assess carbon in urea-formaldehyde polymers or urea. The carbon contained in these compounds is not considered organic [1]. The scope of the standards referenced in this document specifies in which cases the method is also applicable to fertilizing product blends.

Skaityti, komentuoti projektą Peržiūrėti metaduomenis
prEN 17778 Viešoji apklausa
Komentavimo iki data 2026-04-07
Organinės ir organinės-mineralinės trąšos. Šešiavalenčio chromo kiekio nustatymas chromatografijos metodu

This document specifies a method for the determination of hexavalent chromium (chromium(VI)) in organic and organo-mineral fertilizers. The method specified is suitable to quantify the chromium(VI) content in organic and organo-mineral fertilizers down to 2 mg/kg dry matter. The results obtained from this method are strictly dependent on the extraction conditions. Results obtained by using other extraction procedures (extraction solution, pH of the extraction solution, extraction time, extraction temperature, etc.) are not comparable with the results produced by the procedure described in this document. This document is applicable to fertilizing products blends where a blend is a mix of at least two of the following components: fertilizers, liming materials, soil improvers, growing media, inhibitors, plant biostimulants and where organic matter is present in at least one of the products in the blend. In case a fertilizing product blend is composed only of inorganic products, the European Standard for inorganic fertilizers or liming materials applies. Variations in analytical methods for fertilizing product blends can lead to differing results as some components or matrix interactions can affect the outcome. Validation procedures have shown that developed standard methods are robust and reliable across diverse product compositions, but possible interferences and unexpected results when analysing fertilizing product blends are possible.

Skaityti, komentuoti projektą Peržiūrėti metaduomenis
prEN 17728 Viešoji apklausa
Komentavimo iki data 2026-04-07
Organinės dirvožemio gerinimo medžiagos. pH, savitojo elektrinio laidžio, organinės anglies kiekio ir organinio azoto kiekio nustatymo metodai

This document refers to methods to be used for the determination of specific parameters in organic soil improvers, but does not contain the methods themselves. The specific parameters in this document include: — pH; — electrical conductivity; — organic carbon content; — organic nitrogen content. This document is applicable to the fertilizing product blends where a blend is a mix of two or more fertilising products belonging to the categories of fertilizers, liming material, soil improvers, growing media, inhibitors and plant biostimulants, and where soil improvers and/or growing media are the components with the highest percentage in the blend by mass or volume, or in the case of products in liquid form by dry mass. If the soil improvers and/or growing media are not the components with the highest percentage in the blend, the European Standard relevant to the component with the highest percentage in the blend applies. In case a blend is composed of fertilising products mixed in equal quantities, the user of the standard decides which standard to apply. NOTE An organic soil improver consists of a single bulky (volume-building) component or a mix of bulky (volume-building) components (for example peat, wood fibres, coconut coir, compost, expanded perlite).

Skaityti, komentuoti projektą Peržiūrėti metaduomenis
prEN 17730 Viešoji apklausa
Komentavimo iki data 2026-04-07
Dirvožemio gerinimo medžiagos ir auginimo terpės. PAA16, didesnių negu 2 mm makroskopinių priemaišų, temperatūros ir laiko profilių, deguonies vartojimo spartos, savaiminio įkaitimo rodiklio ir likutinio biodujų potencialo nustatymo tręšiamuosiuose produktuose naudojamame komposte ir degazuotajame substrate metodai

This document refers to methods to be used for the determination of specific parameters in compost, fresh crop digestate and digestate other than fresh crop digestate when used as components of fertilizing products, but does not contain the methods themselves. The specific parameters in this document include: — the determination of the PAH16 content; — macroscopic impurities; — the determination of temperature-time profiles during composting and digestion; — oxygen uptake rate; — self-heating factor; — the determination of the residual biogas potential in digestate. This document is applicable to the fertilizing product blends where a blend is a mix of two or more fertilising products belonging to the categories of fertilizers, liming material, soil improvers, growing media, inhibitors and plant biostimulants, and where soil improvers and/or growing media are the components with the highest percentage in the blend by mass or volume, or in the case of products in liquid form by dry mass. If the soil improvers and/or growing media are not the components with the highest percentage in the blend, the European Standard relevant to the component with the highest percentage in the blend applies. In case a blend is composed of fertilising products mixed in equal quantities, the user of the standard decides which standard to apply. NOTE A soil improver or a growing medium consists of a single bulky (volume-building) component or a mix of bulky (volume-building) components (for example peat, wood fibres, coconut coir, compost, expanded perlite).

Skaityti, komentuoti projektą Peržiūrėti metaduomenis
prEN 17731 Viešoji apklausa
Komentavimo iki data 2026-04-07
Auginimo terpės. Savitojo elektrinio laidžio, pH, sausosios medžiagos, kiekybės, visuminio vario ir cinko kiekio, vandenyje tirpių chloridų kiekio ir CaCl2/DTPA ekstrahuojamo azoto, P2O5 ir K2O kiekio nustatymo metodai

This document refers to methods to be used for the determination of specific parameters in growing media, but does not contain the methods themselves. The specific parameters in this document include: — electrical conductivity; — chloride; — pH; — dry matter; — nitrogen, P2O5 (phosphorus pentoxide) and K2O (potassium oxide) content extractable by CaCl2/DTPA; — copper and zinc content; — quantity. This document is applicable to the fertilizing product blends where a blend is a mix of two or more fertilising products belonging to the categories of fertilizers, liming material, soil improvers, growing media, inhibitors and plant biostimulants, and where soil improvers and/or growing media are the components with the highest percentage in the blend by mass or volume, or in the case of products in liquid form by dry mass. If the soil improvers and/or growing media are not the components with the highest percentage in the blend, the European Standard relevant to the component with the highest percentage in the blend applies. In case a blend is composed of fertilising products mixed in equal quantities, the user of the standard decides which standard to apply. NOTE A growing medium consists of a single bulky (volume-building) component or a mix of bulky (volume-building) components (for example peat, wood fibres, coconut coir, compost, expanded perlite).

Skaityti, komentuoti projektą Peržiūrėti metaduomenis
prEN 17770 Archyvuotas
Komentavimo iki data 2026-03-31
Organinės ir organinės-mineralinės trąšos. Tam tikrų elementų visuminio kiekio nustatymas po skaidymo karališkuoju vandeniu atliekant induktyviai susietos plazmos atominę emisinę spektroskopiją (ICP-AES)

This document specifies a method for the determination of arsenic (As), cadmium (Cd), copper (Cu), chromium (Cr), lead (Pb), nickel (Ni)), boron (B), cobalt (Co), iron (Fe), manganese (Mn), molybdenum (Mo), zinc (Zn), phosphorus (P), potassium (K), magnesium (Mg), calcium (Ca), sulfur (S) and sodium (Na) in aqua regia digests of organic, organo-mineral fertilizers, and their fertilizing product blends using inductively coupled plasma-atomic emission spectrometry (ICP-AES). It is applicable and validated for several types of matrices as indicated in Annex A. This document is applicable to the component materials “by-products”, when used as components of fertilizing products, as well as the fertilizing products blends where a blend is a mix of at least two of the following components: fertilizers, liming materials, soil improvers, growing media, inhibitors, plant biostimulants, and where the following category: organic fertilizers, organo-mineral fertilizers is the highest % in the blend by mass or volume, or in the case of liquid form by dry mass. If the organic fertilizer or the organo-mineral fertilizer is not the highest % in the blend, the European Standard for the highest % of the blend applies. In case a fertilizing product blend is composed of components in equal quantity, the user decides which standard to apply. Variations in analytical methods for fertilizing product blends can lead to differing results as some components or matrix interactions can affect the outcome. Validation procedures have shown that developed standard methods are robust and reliable across diverse product compositions, but possible interferences and unexpected results when analysing fertilizing product blends are possible. This method is applicable to aqua regia digests prepared according to prEN 17768. NOTE Alternatively, inductively coupled plasma mass spectrometry (ICP-MS) can be used for the determination of the elements in the aqua regia digests if the user proves that the method gives the same results.

Peržiūrėti metaduomenis
prEN 18299 Viešoji apklausa
Komentavimo iki data 2026-04-10
Dirvožemio gerinimo medžiagos ir auginimo terpės. Salmonella spp. aptikimo ir Escherichia coli bei enterokokų skaičiavimo metodai

This document refers to methods to be used for the detection of Salmonella spp. and the enumeration of Escherichia coli and enterococci in soil improvers and growing media, but does not contain the methods themselves. This document is applicable to the fertilizing product blends where a blend is a mix of two or more fertilising products belonging to the categories of fertilizers, liming material, soil improvers, growing media, inhibitors and plant biostimulants, and where soil improvers and/or growing media are the components with the highest percentage in the blend by mass or volume, or in the case of products in liquid form by dry mass. If the soil improvers and/or growing media are not the components with the highest percentage in the blend, the European Standard relevant to the component with the highest percentage in the blend applies. In case a blend is composed of fertilising products mixed in equal quantities, the user of the standard decides which standard to apply. NOTE A soil improver or a growing medium consists of a single bulky (volume-building) component or a mix of bulky (volume-building) components (for example peat, wood fibres, coconut coir, compost, expanded perlite).

Skaityti, komentuoti projektą Peržiūrėti metaduomenis
prEN 18300 Viešoji apklausa
Komentavimo iki data 2026-04-10
Dirvožemio gerinimo medžiagos ir auginimo terpės. Kadmio, švino, nikelio, šešiavalenčio chromo, gyvsidabrio, neorganinio arseno, fosfonatų, visuminio chromo ir biologiškai įsisavinamo nikelio kiekio nustatymo metodai

This document refers to methods to be used for the determination of specific parameters in soil improvers and growing media, but does not contain the methods themselves. The specific parameters in this document include: — the cadmium content; — the lead content; — the nickel content; — the chromium (VI) content; — the mercury content; — the inorganic arsenic content; — the phosphonates content; — the total chromium content; — the bioavailable nickel content. This document is applicable to the fertilizing product blends where a blend is a mix of two or more fertilising products belonging to the categories of fertilizers, liming material, soil improvers, growing media, inhibitors and plant biostimulants, and where soil improvers and/or growing media are the components with the highest percentage in the blend by mass or volume, or in the case of products in liquid form by dry mass. If the soil improvers and/or growing media are not the components with the highest percentage in the blend, the European Standard relevant to the component with the highest percentage in the blend applies. In case a blend is composed of fertilising products mixed in equal quantities, the user of the standard decides which standard to apply. NOTE A soil improver or a growing medium consists of a single bulky (volume-building) component or a mix of bulky (volume-building) components (for example peat, wood fibres, coconut coir, compost, expanded perlite).

Skaityti, komentuoti projektą Peržiūrėti metaduomenis
prEN 17752 Naujas
Komentavimo iki data 2026-04-06
Neorganinės trąšos. Tam tikrų inhibitorių nustatymas

This document specifies references to the methods for the determination of nitrification inhibitoring compounds and urease inhibiting compounds in inorganic fertilizers. This document is not applicable to fertilizing products blends.

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