Standartų projektų sąrašas

prEN 300 401 V2.2.1 (2026-02) Viešoji apklausa

Komentavimo iki data 2026-05-11

Radio Broadcasting Systems; Digital Audio Broadcasting (DAB) to mobile, portable and fixed receivers

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prEN IEC 62133-2:2026 Viešoji apklausa

Komentavimo iki data 2026-05-08

Akumuliatoriai ir baterijos su šarminiais arba kitokiais nerūgštiniais elektrolitais. Saugos reikalavimai, keliami nešiojamiesiems sandariesiems akumuliatoriams ir iš jų sudarytoms baterijoms, naudojamiems nešiojamuosiuose aparatuose. 2 dalis. Ličio sistemos

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EN IEC 60539-1:2023/prA1:2026 Viešoji apklausa

Komentavimo iki data 2026-05-08

Tiesiogiai kaitinami neigiamojo temperatūrinio varžos koeficiento termistoriai. 1 dalis. Bendroji specifikacija

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prEN IEC 60079-7:2026 Viešoji apklausa

Komentavimo iki data 2026-05-08

Sprogiosios atmosferos. 7 dalis. Įrangos apsauga naudojant padidintąją „e“ saugą

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prEN IEC 60794-1-118:2026 Viešoji apklausa

Komentavimo iki data 2026-05-08

Optiniai skaiduliniai kabeliai. 1-118 dalis. Bendroji specifikacija. Pagrindinės optinių kabelių bandymo procedūros. Mechaninių bandymų metodai. Lenkimas esant tempimui, E18 metodas

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prEN ISO 3924 Viešoji apklausa

Komentavimo iki data 2026-05-07

Naftos produktai. Distiliacijos temperatūrų intervalų pasiskirstymo nustatymas. Dujų chromatografijos metodas (ISO/DIS 3924:2026)

This document specifies a method for the determination of the boiling range distribution of petroleum products. The method is applicable to petroleum products and fractions with a final boiling point of 538 °C or lower at atmospheric pressure as determined by this document. This document does not apply to gasoline samples or gasoline components. The method is limited to products having a boiling range greater than 55 °C and having a vapour pressure sufficiently low to permit sampling at ambient temperature. The document describes two procedures. a) Procedure A allows a larger selection of columns and analysis conditions, such as packed and capillary columns as well as a thermal conductivity detector in addition to the flame ionization detector. Analysis times range from 14 min to 60 min. b) Procedure B is restricted to only three capillary columns and requires no sample dilution. The analysis time is reduced to about 8 min. Both procedures have been successfully applied to samples containing fatty acid methyl esters (FAME) up to 20 % (volume fraction). NOTE For the purposes of this document, the terms "% (mass fraction)" and "% (volume fraction)" are used to represent the mass fraction (µ), the volume fraction (φ) of a material.

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prEN ISO 10364 Viešoji apklausa

Komentavimo iki data 2026-05-07

Konstrukcijų klijai. Daugiakomponenčių klijų tinkamumo trukmės nustatymas (ISO 10364:2024)

This document specifies methods for determining the pot life of multi-part adhesives, in order to be able to determine whether the pot life conforms to the minimum specified working life required of an adhesive. The different methods described in this document to measure the property do not necessarily provide identical results. The test methods described are suitable for assessing all multi–part adhesives, and especially epoxy based and polyurethane based adhesives, but they are not suitable for some acrylic-based adhesives. NOTE 1 Some of the methods described in this document can also be suitable for determination of working life of one-part adhesives that react to humidity (e.g. PUR prepolymers). NOTE 2 This document can also be used for assessing non-structural adhesives.

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prEN 12405-2 Viešoji apklausa

Komentavimo iki data 2026-05-07

Dujų skaitikliai. Perskaičiavimo įtaisai. 2 dalis. Energijos perskaičiavimas

This European Standard specifies the requirements and tests for the construction, performance, safety and conformity of conversion devices used to determine the energy of fuel gases described in the Table 1, including those of the 1st and 2nd families according to EN 437. The energy conversion device (ECD) considered in this standard consists of an energy calculator (EC) and is associated with the following devices and/or functions: - a volume conversion device (VCD) or a flow computer used as gas meter conversion, either conforming to EN 12405-1, or to prEN 12405-3, for high accuracy measurements; - a calorific value determination device (CVDD). Requirements for type approval tests of the devices, not included in the above-mentioned standards are described in appropriate annexes specified in Table 6. For the purpose of this European Standard, the term "volume conversion devices" (VCDs) includes flow computers (FCs). A single calculator may undertake the volume conversion functions for different metering lines.

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prEN ISO 15494 Viešoji apklausa

Komentavimo iki data 2026-03-31

Pramoninės paskirties plastikinių vamzdynų sistemos. Polibutenas (PB), polietilenas (PE), padidinto atsparumo temperatūrai polietilenas (PE-RT), susiūtasis polietilenas (PE-X), polipropilenas (PP). Metrinės serijos, skirtos komponentų ir sistemos techniniams reikalavimams (ISO/DIS 15494:2026)

This document specifies the characteristics and requirements for components such as pipes, fittings, and valves made from one of the following materials intended to be used for thermoplastics piping systems under internal pressure from the media or vacuum conditions in the field of industrial applications above and below ground (including buried): — polybutene (PB); — polyethylene (PE); — polyethylene of raised temperature resistance (PE-RT); — crosslinked polyethylene (PE-X); — polypropylene (PP). NOTE 1 Requirements for industrial valves are given in this document and in other standards (see clause 2) This document is applicable to either PB, PE, PE-RT, PE-X, or PP pipes, fittings, valves, and their joints and to joints with components of other plastics and non-plastic materials, depending on their suitability, intended to be used for the conveyance of liquid and gaseous media as well as solid matter in suspension for industrial applications. Some examples (but not limited to) of industrial piping applications: — chemicals; — industrial sewers; — power engineering (e.g. cooling and general purpose water); — mining; — electroplating and pickling; — semiconductor; — agriculture; — fire fighting; — water treatment; — geothermal; — compressed air; — carbon dioxide (wet or dry capture, transportation, utilisation, and storage). NOTE 2 Where relevant, national regulations (e.g. water treatment) are applicable, other application areas are permitted if the requirements of this document and/or applicable national requirements are fulfilled. National regulations in respect of fire behaviour and explosion risk are applicable. Characteristics and requirements for pipes, fittings, and valves that are applicable for all materials (PB, PE, PE-RT, PE-X, or PP) are covered by the relevant clauses of this document. Characteristics and requirements which are dependent on the material are given in the relevant annex for each material (see Table 1).

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FprHD 60364-7-711:2025/prAA:2026 Viešoji apklausa

Komentavimo iki data 2026-05-06

Žemosios įtampos elektriniai įrenginiai. 7-711 dalis. Reikalavimai, keliami specialiesiems įrenginiams arba specialiosioms jų įrengimo vietoms. Laikini elektriniai įrenginiai, skirti parodoms ir su pramogomis susijusiems renginiams

The particular requirements of this part of IEC 60364 apply to the temporary electrical installations of exhibitions, shows and stands (including mobile and portable displays and equipment).

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EN 61800-5-2:2017/prA1:2026 Viešoji apklausa

Komentavimo iki data 2026-05-06

Reguliuojamojo greičio elektrinių galios pavarų sistemos. 5-2 dalis. Saugos reikalavimai. Funkcinė sauga

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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.

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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.

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prEN ISO 22523 Viešoji apklausa

Komentavimo iki data 2026-05-05

Išoriniai galūnių protezai ir išoriniai įtvarai. Reikalavimai ir bandymo metodai (ISO/DIS 22523:2026)

This document specifies requirements and test methods for external limb prostheses and external orthoses, including the following classifications from ISO 9999: 06 03 - 06 15 Orthoses 06 18 - 06 27 Limb prostheses It covers strength, materials, restrictions on use, risk and the provision of information associated with the normal conditions of use of both components and assemblies of components. This document is also applicable as a guide in the design and test of custom build orthosis and prosthesis. NOTE The application of Quality Systems as described or referred to in ISO 13485 and ISO 13488 can be appropriate.

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prEN ISO 27917 Viešoji apklausa

Komentavimo iki data 2026-04-30

Anglies dioksido surinkimas, transportavimas ir saugojimas. Aiškinamasis žodynas. Bendrieji terminai (ISO/DIS 27917:2026)

This document defines a list of cross-cutting terms commonly used in the field of carbon dioxide capture, transportation and geological sub-surface storage including through storage in association with enhanced oil recovery (EOR) operations. This document only deals with CO2 geological sub-surface storage. The terms are classified as follows: — general terms and definitions relating to carbon dioxide; — general terms and definitions relating to carbon dioxide capture, transportation and storage; — general terms and definitions relating to monitoring and measuring performance in carbon dioxide capture, transportation and geological storage; — general terms and definitions relating to risk; — general terms and definitions relating to relationships with stakeholders; A list of the main acronyms used is given in Annex A.

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prEN ISO 20899 Viešoji apklausa

Komentavimo iki data 2026-05-02

Vandens kokybė. Plutonis ir neptūnis. Bandymas ICP-MS metodu (ISO/DIS 20899:2026)

This document specifies methods to determine the 239Pu, 240Pu, 241Pu and 237Np by inductively coupled plasma mass spectrometry (ICP-MS). The mass concentrations obtained can be converted into activity concentrations. Due to its relatively short half-life and 238U isobaric interference, 238Pu can hardly be measured by this method. To quantify 238Pu isotope by mass spectrometry, other techniques can be used (ICP-MS with collision-reaction cell, ICP-MS/MS with collision-reaction cell or chemical separation). Alpha spectrometry measurement, as described in ISO 13167,[8] is currently used[9]. The method is applicable to test samples of supply/drinking water, rainwater, surface and ground water, marine water, as well as cooling water, industrial water, domestic, and industrial wastewater after proper sampling and handling, and test sample preparation. A chemical separation of Np and Pu, with quantitative removal of all other elements (including uranium, americium, etc.) is mandatory, given all the potential interferences that may bias the measurement or lead to false positives. Chemical separations can eliminate most of the 238U. However, use of reagents, glassware, and atmosphere for the chemical separation, will also add 238U to the samples and prevent measurement of 238Pu. The limit of detection depends on the sample volume, the instrument used, the background count rate, the detection efficiency, the counting time, and the chemical yield. The detection limit of the method described in this document, using currently available ICP-MS apparatus, is approximately 1 mBq·l-1 for 239Pu, 240Pu, 237Np and 1 Bq·l-1 for 241Pu, which is lower or of the same order of magnitude than the WHO criteria for safe consumption of drinking water (1 mBq·l-1 for 239Pu, 240Pu, 237Np and 10 Bq·l-1 for 241Pu[4]).This method covers the measurement of those radionuclides in water at activity concentrations between approximately[10][11]: — 1 mBq·l−1 to 5 Bq·l−1 for 239Pu, 240Pu and 237Np; — 1 Bq·l−1 to 5 Bq·l−1 for 241Pu. Samples with higher activity concentrations than 5 Bq·l−1 can be measured if a dilution is performed. The higher is the concentration factor, the lower are the LD and LQ expressed in Bq/L of water. A preconcentration is especially useful for the quantification of 241Pu that is usually the less abundant isotope of plutonium. The method described in this document is applicable in the event of an emergency situation. Filtration of the test sample is necessary. The analysis of 239Pu, 240Pu, 241Pu and 237Np adsorbed to suspended matter is not covered by this method. The analysis of the insoluble fraction requires a mineralization step that is not covered by this document. In this case, the measurement is performed separately on each phase or the total phase. It is the user’s responsibility to ensure the validity of this test method for the water samples tested.

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prEN IEC 60704-2-7:2026 Viešoji apklausa

Komentavimo iki data 2026-05-01

Buitiniai ir panašios paskirties elektriniai prietaisai. Ore sklindančio akustinio triukšmo nustatymo taisyklės. 2-7 dalis. Ypatingieji reikalavimai, keliami ventiliatoriams

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prEN IEC 60704-2-8:2026 Viešoji apklausa

Komentavimo iki data 2026-05-01

Buitiniai ir panašios paskirties elektriniai prietaisai. Ore sklindančio akustinio triukšmo nustatymo taisyklės. 2-8 dalis. Ypatingieji reikalavimai, keliami elektrinėms skutimosi mašinėlėms ir plaukų kirpimo mašinėlėms

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prEN ISO 21227-1 Viešoji apklausa

Komentavimo iki data 2026-04-30

Dažai ir lakai. Padengto paviršiaus defektų įvertinimas taikant optinį vaizdavimą. 1 dalis. Bendrasis vadovas (ISO/DIS 21227-1:2026)

ISO 21227-1:2003 gives definitions for and provides guidance in the use of optical imaging systems for the quantitative characterization of defects on coated surfaces that occur after exposure in various test methods, e.g. stone chipping, weathering or cross-cut testing. One aim of ISO 21227 is to use optical imaging to reproduce the results of already existing methods for visual assessment. Additionally, optical imaging provides further information which can be used for a more detailed evaluation of coating defects. This part of ISO 21227 contains a general introduction in optical-imaging methods and definitions. The performance of individual test methods and requirements for precision are described in other parts of the standard.

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prEN ISO 25178-6 Viešoji apklausa

Komentavimo iki data 2026-04-30

Geometrinės gaminio specifikacijos (GGS). Plotinė paviršiaus tekstūra. 6 dalis. Paviršiaus tekstūros matavimo metodų topografija (ISO/DIS 25178-6:2026)

ISO 25178-6:2010 describes a classification system for methods used primarily for the measurement of surface texture. It defines three classes of methods, illustrates the relationships between the classes, and briefly describes specific methods.

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prEN 15189 Viešoji apklausa

Komentavimo iki data 2026-04-30

Stipriojo ketaus vamzdžiai, jungiamosios detalės ir pagalbiniai reikmenys. Išorinės poliuretaninės vamzdžių dangos. Reikalavimai ir bandymo metodai

This document specifies the requirements and test methods applicable to factory applied external polyurethane based coatings for heavy duty (see EN 545:2010, Clause D.3) corrosion protection of buried ductile iron pipes in accordance with EN 545, EN 598 and EN 969 for use at operating temperatures up to 50 °C. This document is not applicable to ductile iron pipes protected with zinc with a finishing layer of polyurethane. This document is not applicable to special activities on site such as tapping, clamping, etc., which could affect the corrosion protection properties of the polyurethane coating. NOTE These operations are usually specified in the laying instructions supplied by manufacturers of clamps, house connection saddles, etc. and any relevant user procedures.

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EN ISO 10156:2017/prA1 Viešoji apklausa

Komentavimo iki data 2026-04-30

Dujų balionai. Dujos ir dujų mišiniai. Užsiliepsnojimo potencialo ir oksidacijos gebos nustatymas, skirtas balionų čiaupų atvamzdžiams parinkti. 1 keitinys (ISO 10156:2017/DAM 1:2026)

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prEN ISO 3630-1 Viešoji apklausa

Komentavimo iki data 2026-04-30

Odontologija. Endodontiniai instrumentai. 1 dalis. Bendrieji reikalavimai (ISO/DIS 3630-1:2026)

This document specifies general requirements and test methods for endodontic instruments used for endodontic purposes, e.g. enlargers, compactors, accessory instruments, shaping and cleaning instruments, and a numeric coding system. In addition, it covers general size designations, color-coding, packaging, and identification symbols.

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prEN 300 019-1-4 V3.1.0 (2026-02) Viešoji apklausa

Komentavimo iki data 2026-04-26

Environmental Engineering (EE); Environmental conditions and environmental tests for telecommunications equipment; Part 1: Classification of environmental conditions; Sub-part 4: Stationary use at non-weatherprotected locations

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prEN 300 019-1-3 V3.1.0 (2026-02) Viešoji apklausa

Komentavimo iki data 2026-05-03

Environmental Engineering (EE); Environmental conditions and environmental tests for telecommunications equipment; Part 1: Classification of environmental conditions; Sub-part 3: Stationary use at weatherprotected locations

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