Standartų projektų sąrašas

prEN 18259 Viešoji apklausa

Komentavimo iki data 2026-01-12

Dirvožemio gerinimo medžiagos ir auginimo terpės. Karališkajame vandenyje tirpių elementų nustatymas

This document specifies a method for the determination of elements in soil improvers or growing media extracts using inductively coupled plasmaatomic emission spectrometry (ICPAES) NOTE 1 Alternatively, other suitable analytical techniques, e.g. inductively coupled plasma mass spectrometry (ICPMS) or atomic absorption spectrometry (AAS), can be used for the measurement if the user proves that the method gives the same results. This method is applicable to aqua regia extracts prepared according to EN 13650:— 1. NOTE 2 The method may be used for the determination of other elements, provided the user has verified the applicability.

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prEN 18258 Archyvuotas

Komentavimo iki data 2025-12-30

Dirvožemio gerinimo medžiagos ir auginimo terpės. Gyvsidabrio kiekio nustatymas

Soil improvers and growing media - Determination of mercury in aqua regia soil extracts with cold-vapour atomic spectrometry or cold-vapour atomic fluorescence spectrometry

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prEN 18257 Viešoji apklausa

Komentavimo iki data 2026-01-12

Dirvožemio gerinimo medžiagos ir auginimo terpės. Chromo(VI) nustatymas

Soil improvers and growing media - Determination of Chromium(VI) in solid material by alkaline digestion and ion chromatography with spectrophotometric detection

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prEN 13654-1 Archyvuotas

Komentavimo iki data 2025-12-30

Dirvožemio gerinimo medžiagos ir auginimo terpės. Azoto kiekio nustatymas. 1 dalis. Modifikuotas Kjeldalio metodas

This European Standard specifies a method for the determination of nitrogen in soil improvers and growing media. The Kjeldahl method determines ammonium-N, nitrate-N, nitrite-N and organic N content of soil improvers and growing media. Nitrogen in N-N-linkages, N-O-linkages and some heterocyclics (especially pyridine) is only partially determined. [6], [7], [8] The method is not applicable to liming materials and preformed materials such as mineral wool slabs and foam slabs. NOTE The requirements of the standard may differ from the national legal requirements for the declaration of the products concerned.

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prEN IEC 62321-8:2025 Archyvuotas

Komentavimo iki data 2025-12-26

Tam tikrų medžiagų nustatymas elektrotechniniuose gaminiuose. 8 dalis. Ftalatų nustatymas polimeruose taikant dujų chromatografiją ir masių spektrometriją (GC-MS) arba dujų chromatografiją ir masių spektrometriją naudojant pirolizės ir šiluminės desorbcijos įrenginį

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prEN ISO 14644-14 Archyvuotas

Komentavimo iki data 2025-12-25

Švariosios patalpos ir su jomis susijusi kontroliuojamoji aplinka. 14 dalis. Įrangos tinkamumo naudoti vertinimas pagal ore sklindančių dalelių koncentraciją (ISO/FDIS 14644-14:2025)

ISO 14644-14:2016 specifies a methodology to assess the suitability of equipment (e.g. machinery, measuring equipment, process equipment, components and tools) for use in cleanrooms and associated controlled environments, with respect to airborne particle cleanliness as specified in ISO 14644‑1. Particle sizes range from 0,1 µm to equal to or larger than 5 µm (given in ISO 14644‑1). NOTE Where regulatory agencies impose supplementary guidelines or restrictions, appropriate adaptation of the assessment methodology can be required. The following items are not covered by this ISO 14644-14:2016: - assessment of suitability with respect to biocontamination; - testing for suitability of decontamination agents and techniques; - cleanability of equipment and materials; - requirements on design of equipment and selection of materials; - physical properties of materials (e.g. electrostatic, thermal properties); - optimizing performance of equipment for specific process applications; - selection and use of statistical methods for testing; - protocols and requirements for local safety regulations.

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prEN ISO 14644-13 Archyvuotas

Komentavimo iki data 2025-12-25

Švariosios patalpos ir su jomis susijusi kontroliuojamoji aplinka. 13 dalis. Paviršių valymas nustatytam švarumo lygiui pagal dalelių ir cheminių medžiagų koncentracijos klasifikacijas pasiekti (ISO/FDIS 14644-13:2025)

ISO 14644-13:2017 gives guidelines for cleaning to a specified degree on cleanroom surfaces, surfaces of equipment in a cleanroom and surfaces of materials in a cleanroom. Under consideration are all surfaces (external or internal) that are of interest. It provides guidance on the assessment of cleaning methods for achieving the required surface cleanliness by particle concentration (SCP) and surface cleanliness by chemical concentration (SCC) classes and which techniques should be considered to achieve these specified levels. The appropriateness of cleaning techniques will make reference to the cleanliness classes and associated test methods found in ISO 14644‑9 and ISO 14644‑10. The following matters of general guidance will be provided: - expected surface cleanliness levels; - suitability of cleaning methods; - compatibility of surfaces with the cleaning technique; - assessment of cleaning appropriateness. The following will be excluded from this document: - classification of cleaning methods; - product produced within a cleanroom; - specific surface-related cleaning methods; - detailed description of cleaning mechanisms, methods and procedures of various cleaning methods; - detailed material characteristics; - description of damage mechanisms by cleaning processes and time-dependent effects; - references to interactive bonding forces between contaminants and surfaces or generation processes that are usually time-dependent and process-dependent; - other characteristics of particles such as electrostatic charge, ionic charges, etc.; - chemical reactions between molecular contaminants and surfaces; - microbiological aspects of surface cleanliness; - radioactive aspects of contamination; - health and safety considerations; - environmental aspects such as waste disposal, emissions, etc.; - selection and use of statistical methods.

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prEN 13654-2 Viešoji apklausa

Komentavimo iki data 2026-01-12

Dirvožemio gerinimo medžiagos ir auginimo terpės. Azoto kiekio nustatymas. 2 dalis. Dumas metodas

This European Standard specifies a method for the determination of nitrogen in soil improvers and growing media. The dry combustion method was developed originally as a manual method by Dumas. Its application is improved greatly due to the use of modern automated equipment and is applicable to all forms of nitrogen. NOTE The requirements of the standard may differ from the national legal requirements for the declaration of the products concerned.

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prEN 13651 Viešoji apklausa

Komentavimo iki data 2026-01-12

Dirvožemio gerinimo medžiagos ir auginimo terpės. Kalcio chloride/DTPA (CAT) tirpių maisto medžiagų ekstrahavimas

This European Standard specifies an extraction method for the routine determination of calcium chloride/DTPA (CAT-method) extractable nutrients and elements (as listed in annex B) in soil improvers or growing media. The method is not applicable to liming materials and preformed materials such as mineral wool slabs and foam slabs. NOTE The requirements of the standard may differ from the national legal requirements for the declaration of the products concerned.

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prEN IEC 60115-4-10:2025 Archyvuotas

Komentavimo iki data 2025-12-24

Pastovieji varžai, naudojami elektroninėje įrangoje. 4-10 dalis. Lentelinė detalioji specifikacija. Galios varžai su ašiniais išvadais skyliniam montavimui spausdintinėse plokštėse, priskiriami klasifikaciniam G lygiui ir skirti bendrosios paskirties elektroninei įrangai

This part of IEC 60115 is applicable to fixed power resistors with axial leads for through hole assembly (THT) on circuit boards for use in electronic equipment. The document is applicable to the drafting of detail specifications for fixed low-power film resistors with leads classified to level G, which is defined in IEC 60115-1:2020, 3.4 for general electronic equipment, typically operated under benign or moderate environmental conditions, where the major requirement is function. Examples for level G include consumer products and telecommunication user terminals. This detail specification is based upon the blank detail specification IEC 60115-4-10:202X. This detail specification establishes test schedules and performance requirements permitting the quality assessment of the resistors covered herein according to the quality assessment procedures prescribed by IEC 60115-1:2020, Annex Q.

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prEN IEC 55035:2025 Archyvuotas

Komentavimo iki data 2025-12-24

Multimedijos įrangos elektromagnetinis suderinamumas. Atsparumo reikalavimai

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prEN 18250 Viešoji apklausa

Komentavimo iki data 2026-01-05

Dirvožemio gerinimo medžiagos ir auginimo terpės. Daiginimo terpės. Matmenų, tūrio ir piltinio tankio nustatymas

This document specifies a method for the determination of the dimensions, volume and the bulk density of pre-shaped and non pre-shaped plugs.

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prEN 18252 Viešoji apklausa

Komentavimo iki data 2026-01-05

Dirvožemio gerinimo medžiagos ir auginimo terpės. Chloridų kiekio nustatymas

This document specifies a method for the determination of the chloride (Cl-) content by potentiometric titration. This method is applicable to growing media and soil improvers. NOTE It is possible to use other analytical techniques (e.g. ion chromatography, discrete analyser, continuous flow analyser); in this case a validation is carried out by the laboratory for the procedure and data generated.

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prEN 18251 Viešoji apklausa

Komentavimo iki data 2026-01-05

Dirvožemio gerinimo medžiagos ir auginimo terpės. Fosfonatų kiekio nustatymas

This document specifies a method for the extraction and determination of phosphonates (P-PO3) in growing media and soil improvers using ion chromatography and conductivity detection (IC-CD). 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 document 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 document decides which standard to apply. NOTE A 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).

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prEN 18261 Viešoji apklausa

Komentavimo iki data 2026-01-05

Kompostas ir degazuotasis substratas. Policiklinių aromatinių angliavandenilių (PAA) nustatymas dujų chromatografijos (GC) ir efektyviosios skysčių chromatografijos (HPLC) metodais

This document specifies different methods for quantitative determination of 16 polycyclic aromatic hydrocarbons (PAH) (see Table 1) in compost or digestate, using GC-MS, GCMS/MS or HPLC UV DAD/FLD covering a wide range of PAH contamination levels (see Table 1). When using fluorescence detection, acenaphthylene cannot be measured. Table 1 — Target analytes of this document [...table not reproduced...] The limit of detection depends on the determinants, the equipment used, the quality of chemicals used for the extraction of the sample and the clean-up of the extract. This document contains decision tables based on the properties of the sample and the extraction and clean-up procedure to be used. The method may be applied to the analysis of other PAH not specified in the scope, provided suitability is proven by proper in-house validation experiments.

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prEN 13650 Viešoji apklausa

Komentavimo iki data 2026-01-05

Dirvožemio gerinimo medžiagos ir auginimo terpės. Skaidymas karališkuoju vandeniu paskesniam elementų nustatymui

This document specifies a method for the digestion of soil improvers and growing media using an aqua regia digestion. Materials containing more than about 28 % (m/m) organic matter will require treatment with additional nitric acid. With high solute concentrations in extract solutions, spectral interferences and background enhancement should be expected.

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prEN 50625-1:2025 Archyvuotas

Komentavimo iki data 2025-12-19

Elektrinės ir elektroninės įrangos atliekų surinkimo, gabenimo ir apdorojimo reikalavimai. 1 dalis. Bendrieji apdorojimo reikalavimai

This document sets general requirements for the treatment of waste electrical and electronic equipment (WEEE) except for preparing for re-use. The requirements for the treatment process preparing for re-use are described in EN 50614:2020. This document is supplemented, for example by standards covering specific equipment. NOTE 1 This document is intended to cover WEEE arising from electrical and electronic equipment as listed under Annex III of Directive 2012/19/EU. NOTE 2 For the purposes of this document, treatment includes recovery or disposal operations, including preparation prior to recovery or disposal. This document addresses all operators involved in the treatment including related handling, sorting, and storage of WEEE. This document applies to operators processing WEEE and non-WEEE at the same facility and in the same process, regardless the size of the WEEE-related activities.

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prEN IEC 61300-3-52:2025 Archyvuotas

Komentavimo iki data 2025-12-19

Skaiduliniai optiniai sujungimo įtaisai ir pasyvieji komponentai. Pagrindinės bandymo ir matavimo procedūros. 3-52 dalis. Tyrimai ir matavimai. Vienmodžių skaidulų stačiakampės movinės nusklembtos fiziškai suliečiamos jungties kreipiamosios skylės ir nustatymo kojelės deformacijos konstanta

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prEN 16087-1 Archyvuotas

Komentavimo iki data 2025-12-30

Dirvožemio gerinimo medžiagos ir auginimo terpės. Organinių medžiagų aerobinio biologinio skaidymo greičio nustatymas. 1 dalis. Deguonies suvartojimo greitis (OUR)

This document describes a method to determine the stability of materials (e.g. compost, digestate) used as components (ingredients) in growing media, soil improvers and organic fertilisers by measuring the oxygen uptake rate (OUR). The oxygen uptake rate is a direct parameter for the degradation rate of biodegradable organic matter that is being broken down within a specified time period. The method is not suitable for material with a content of particle sizes > 20 mm exceeding 20 % by volume. NOTE The relation between the degradation rate and the oxygen uptake rate under the same conditions is depending on the type of material, for example by the C/N ratio. So it is important for the interpretation and limit values to be set based on the type of material.

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prEN 16087-2 Archyvuotas

Komentavimo iki data 2025-12-30

Dirvožemio gerinimo medžiagos ir auginimo terpės. Organinių medžiagų aerobinio biologinio skaidymo greičio nustatymas. 2 dalis. Komposto savaiminio įšilimo tyrimas

This document specifies a method to determine the aerobic biological activity using a self-heating test. This method is only applicable to composted material.

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