Standartų projektų sąrašas

prEN IEC 61111:2025 Viešoji apklausa

Komentavimo iki data 2025-05-28

Darbai esant įtampai. Elektros izoliaciniai kilimėliai

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prEN ISO 3964-1 Viešoji apklausa

Komentavimo iki data 2025-07-01

Odontologija. Antgalių jungčių matmenys. 1 dalis. Mechaninės savybės (ISO/DIS 3964-1:2025)

This International Standard specifies the coupling between handpieces and motors connected to dental units. This International Standard specifies the nominal dimensions, tolerances and the extraction force of coupling systems for use between handpiece and motor which supply the handpiece with water, air and light, and rotation energy.

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prEN IEC 63086-2-2:2025 Viešoji apklausa

Komentavimo iki data 2025-07-02

Buitiniai ir panašios paskirties elektriniai oro valytuvai. Eksploatacinių charakteristikų matavimo metodai. 2-2 dalis. Ypatingieji reikalavimai, keliami dujinių teršalų kiekio sumažėjimo nustatymui

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prEN 18177 Viešoji apklausa

Komentavimo iki data 2025-06-17

Žiedinė ekonomika statybos sektoriuje. Struktūra, principai ir apibrėžtys

This document defines key terminology, establishes circular economy principles at the levels of construction works as well as construction products of all kinds, and provides a guidance framework for the implementation and assessment of circularity in the built environment.

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EN ISO 8325:2023/prA1:2025 Viešoji apklausa

Komentavimo iki data 2025-06-17

Odontologija. Sukiųjų instrumentų bandymo metodai. 1 keitinys (ISO 8325:2023/Amd 1:2025)

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prEN 3475-812 Viešoji apklausa

Komentavimo iki data 2025-07-08

Aerospace series - Cables, electrical, aircraft use - Test methods - Part 812: Return loss (VSWR)

This document specifies methods for measuring return loss respectively voltage standing wave ratio (VSWR), in the required frequency range of coaxial cables. The return loss is used for quantifying the level of the reflected signal due to an impedance mismatch between the cable and the reference impedance and due to structural variations of the impedance along the cable. It is intended to be used together with EN 3475 100 and EN 50289 1 11. NOTE In particular, correction procedures detailed in EN 50289 1 11:2016, Annex B are important to minimize negative effects of cable preparation in the purpose of high frequency range measurements.

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prEN IEC 63517:2025 Viešoji apklausa

Komentavimo iki data 2025-06-18

Dėvimoji elektroninė tekstilė. Šildančiųjų gaminių eksploatacinių charakteristikų bandymo metodai. Šildymo temperatūra ir energijos suvartojimas

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prEN ISO 11670 Viešoji apklausa

Komentavimo iki data 2025-07-15

Lazeriai ir lazerinė įranga. Lazerio pluošto parametrų bandymo metodai. Pluošto erdvinis stabilumas (ISO/DIS 11670:2025)

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prEN 438-9 Viešoji apklausa

Komentavimo iki data 2025-07-15

Didelio slėgio apdailos laminatai (HPL). Lakštai termoreaktyviųjų dervų pagrindu (paprastai vadinami laminatais). 9 dalis. Laminatų su kitokiomis šerdimis klasifikavimas ir techniniai reikalavimai

This document specifies performance requirements for alternative core laminates intended for interior use, the core layer compositions of which are not covered by EN 438-3 [1], EN 438-4 [2], EN 438-5 [3], EN 438-6 [4] and EN 438-8 [5]. The core layer types (coloured core layer and metal reinforced core layer) are defined in this part of EN 438. EN 438-2 specifies the test methods relevant to this document.

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prEN 12666-1 Viešoji apklausa

Komentavimo iki data 2025-06-10

Beslėgio požeminio nuotakyno plastikinių vamzdžių sistemos. Polietilenas (PE). 1 dalis. Vamzdžių, jungiamųjų detalių ir iš jų sudarytos sistemos techniniai reikalavimai

5. Scope of the proposed work item (max 4000 characters) This document specifies the definitions and requirements for solid-wall pipes with or without internal skin and smooth internal and external surfaces extruded from the same compound throughout the wall, fittings and the system of polyethylene (PE) piping systems to be intended for use in non-pressure underground drains and sewers for foul wastewater. NOTE 1: Products complying with this document can also be used in non-pressure underground drains and sewers for surface water. This document is applicable to: a) non-pressure drains and sewers, which are intended to be used buried underground outside the building structure; reflected in the marking of products by “U”; and b) non-pressure drains and sewers, which are intended to be used buried underground both outside (application area code “U”) and within the building structure, reflected in the marking of products by “UD”. This document specifies test methods referred to in this document and test parameters. This document is applicable to pipes and fittings with or without an integral socket. This document covers a range of pipe and fitting sizes, stiffness classes, tolerance classes and gives recommendations concerning colours. NOTE 2 It is the responsibility of the purchaser or specifier to make the appropriate selections from these aspects, taking into account their particular requirements and any relevant national regulations and installation practices or codes. In conjunction with CEN/TS 12666-2[1] it is applicable to PE pipes and fittings, their joints and to joints with components of other plastics and non-plastics materials intended to be used for buried piping systems for non-pressure drains an sewers. The fittings can be manufactured by injection moulding or can be fabricated from pipes and/or mouldings. This document is applicable to PE pipes and fittings for the following types of joints: — Elastomeric ring seal joints; — Butt fused joints; — Electrofusion joints; — Mechanical joints; NOTE 3: Pipes, fittings and other components conforming to any of the plastics product standards listed in the Annex D (informative) may be used with pipes and fittings conforming to this European Standard, provided they conform to the requirements for joint dimensions given in Clause 7 and to the requirements of Clause 7 and Table 13.

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prEN IEC 63041-2:2025 Viešoji apklausa

Komentavimo iki data 2025-06-18

Pjezoelektriniai jutikliai. 2 dalis. Cheminiai ir biocheminiai jutikliai

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prEN 688 Viešoji apklausa

Komentavimo iki data 2025-07-10

Tampriosios grindų dangos. Techniniai kamštienos linoleumo reikalavimai

This document specifies the characteristics of corklinoleum, supplied in roll form. To encourage the consumer to make an informed choice, the standard includes a classification system based on intensity of use, which shows where resilient floor coverings should give satisfactory service (see EN 685). It also includes requirements for marking. The term 'linoleum' is frequently incorrectly applied to a range of floor coverings, often to those based on polyvinyl chloride or rubber. Such materials are excluded from this document.

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prEN ISO 19870-1 Viešoji apklausa

Komentavimo iki data 2025-07-15

Vandenilio technologijos. Šiltnamio efektą sukeliančių dujų kiekio, susijusio su vandenilio tiekimo grandine, nustatymo metodika. 1 dalis. Išmetamas kiekis, susijęs su vandenilio gamyba visame gamybos etape (ISO/DIS 19870-1:2025)

ISO 14044 requires the goal and scope of an LCA to be clearly defined and be consistent with the intended application. Due to the iterative nature of LCA, it is possible that the LCA scope needs to be refined during the study. This document specifies methodologies that can be applied to determine the carbon footprint of a product (CFP) or partial CFP of a hydrogen product in line with ISO 14067. The goals and scopes of the methodologies correspond to either approach a) or b), given below, that ISO 14040:2006, A.2 gives as two possible approaches to LCA. a) An approach that assigns elementary flows and potential environmental impacts to a specific product system, typically as an account of the history of the product. b) An approach that studies the environmental consequences of possible (future) changes between alternative product systems. Approaches a) and b) have become known as attributional and consequential, respectively, with complementary information accessible in the ILCD handbook.[1] There are numerous pathways to produce hydrogen from various primary energy sources. This document describes the requirements and evaluation methods applied to several hydrogen production pathways of interest: electrolysis, steam methane reforming (with carbon capture and storage), co-production and coal gasification (with carbon capture and storage), auto-thermal reforming (with carbon capture and storage), hydrogen as a co-product in industrial applications and hydrogen from biomass waste as feedstock. This document also considers the GHG emissions due to the conditioning or conversion of hydrogen into different physical forms and chemical carriers: — hydrogen liquefaction; — production, transport and cracking of ammonia as a hydrogen carrier; — hydrogenation, transport and dehydrogenation of liquid organic hydrogen carriers (LOHCs). This document considers the GHG emissions due to hydrogen and/or hydrogen carriers’ transport up to the consumption gate. It is possible that future revisions of this document will consider additional hydrogen production, conditioning, conversion and transport methods. This document applies to and includes every delivery along the supply chain up to the final delivery to the consumption gate (see Figure 2 in the Introduction). This document also provides additional information related to evaluation principles, system boundaries and expected reported metrics in the form of Annexes A to K, that are accessible via the online ISO portal (https://standards.iso.org/iso/ts/19870/ed-1/en).

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prEN 16842-11 Viešoji apklausa

Komentavimo iki data 2025-06-10

Varikliniai pramoniniai krautuvai. Matomumas. Bandymo metodai ir patikra. 11 dalis. Padėklų krautuvai (valdomi vairuotojo)

This document specifies the requirements and test procedures for 360° visibility of self-propelled industrial rider-controlled pallet-stacking trucks in accordance with ISO 5053-1 (herein after referred to as trucks), without a load and it is intended to be used in conjunction with EN 16842-1. This document also applies to pedestrian controlled trucks with foldable platform when used in ride-on mode. Pedestrian-controlled and pedestrian-propelled trucks are not covered by this document. Where specific requirements in this part are modified from the general requirements in EN 16842-1, the requirements of this part are truck specific and intended to be used for self-propelled industrial stand-on pallet-stacking trucks. This part of EN 16842 deals with all significant hazards, hazardous situations or hazardous events relevant to the visibility of the operator for applicable machines when used as intended and under conditions of misuse which are reasonably foreseeable by the manufacturer.

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prEN 16129 Viešoji apklausa

Komentavimo iki data 2025-06-19

Butano, propano ir jų mišinių slėgio reguliatoriai, automatiniai perjungimo įtaisai, kuriems būdingas didžiausiasis reguliuojamas 4 barų slėgis ir didžiausiasis 150 kg/h srautas, susiję saugos įtaisai ir siejikliai

This document specifies the design and operational characteristics, the safety requirements, test methods and the marking of regulators and automatic change-over devices having a maximum regulated pressure of 4 bar, with a maximum capacity of 150 kg/h, for use with butane, propane and their mixtures in the vapour phase. The maximum supply pressures for devices covered by this standard are 7,5 bar for butane and 16 bar for propane and LPG. This document also applies to the safety devices which are included within regulating devices covered by this document. This document also includes requirements for: - adaptors for connecting to self-closing valves; - integral or auxiliary safety devices. This document covers devices used in locations where the temperature likely to be reached during use is between −20 °C and +50 °C Additional requirements for devices to be used at temperatures down to −30 °C and/or up to +80 °C are defined in Annex C. This document gives special requirements for: - devices intended to be used in caravans and motor caravans (Annex D); - devices intended to be used in boats (Annex M); - specific connections which are not defined in other standards (e.g. EN 15202:2019 for cylinder valve connections). NOTE Boats considered in this document are recreational crafts covered by European Directive 2013/53/EU.

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prEN ISO 20427 Viešoji apklausa

Komentavimo iki data 2025-07-10

Pigmentai ir užpildai. Dispergavimo procedūra sedimentacija pagrįstam skendinčių pigmentų ar užpildų dalelių dydžio nustatymui taikant sedimentacijos skystyje metodus (ISO/DIS 20427:2025)

This document specifies sample preparation methods to determine the size distribution of separate particles of a single pigment or extender, which is dispersed in a liquid by application of a standardized dispersion procedure, using an ultrasonic device, shaker device or wet jet mill. The sample preparation methods described are optimized for measurements carried out with a particle sizing technique based on sedimentation. This technique relies on particle migration due to gravitation or centrifugal forces and requires a density contrast between the particles and the liquid phase.

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prEN ISO 18369-1 Viešoji apklausa

Komentavimo iki data 2025-07-17

Oftalmologinė optika. Kontaktiniai lęšiai. 1 dalis. Aiškinamasis žodynas, klasifikavimo sistema ir specifikacijų ženklinimo rekomendacijos (ISO/DIS 18369-1:2025)

ISO 18369-1:2017 identifies and defines the terms applicable to the physical, chemical and optical properties of contact lenses, their manufacture and uses. It provides a vocabulary of terms and, when appropriate, the international symbol and abbreviation associated with a specific term. This document also defines the terms relating to contact lens care products. It also incorporates the classifications of contact lens materials and gives recommendations for the labelling of the specifications of contact lenses.

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prEN 1568-3 Viešoji apklausa

Komentavimo iki data 2025-06-10

Gaisro gesinimo medžiagos. Putų koncentratai. 3 dalis. Mažo plėtimosi putų koncentratų, naudojamų nesimaišančių su vandeniu skysčių paviršiams padengti, techniniai reikalavimai

This European Standard specifies requirements for chemical and physical properties, and minimum performance requirements of low expansion foams suitable for surface application to water-immiscible liquids. Requirements are also given for marking. WARNING - Any type approval according to this standard is invalidated by any change in composition of the approved product. Some concentrates conforming to this part of EN 1568 can also conform to other parts and therefore can also be suitable for application as medium and/or high expansion foams, and for application at low expansion to water-miscible liquids.

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prEN ISO 18739 Viešoji apklausa

Komentavimo iki data 2025-06-12

Odontologija. CAD/CAM sistemų procesų grandinės žodynas (ISO 18739:2025)

ISO 18739:2016 specifies terms, synonyms for terms and definitions used in the process chain for CAD/CAM systems in dentistry.

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prEN 3-7 Viešoji apklausa

Komentavimo iki data 2025-07-08

Nešiojamieji gesintuvai. 7 dalis. Charakteristikos, veikimo reikalavimai ir bandymo metodai

This document specifies the characteristics, performance requirements and test methods for portable fire extinguishers. Reference to the suitability of an extinguisher for use on gaseous fires (Class C fires) are at the manufacturer’s discretion but are applied only to powder type extinguishers which have gained a Class B or Class A and Class B rating. Suitability of extinguishers for use on Class D fires (fires involving flammable metals) is outside the scope of this document in respect of test fires. However, extinguishers claiming Class D suitability are covered in all other respects by the requirements in this document for powder extinguishers. It is considered hazardous for powder and carbon dioxide fire extinguishers to be used on Class F fires. For this reason, powder and carbon dioxide fire extinguishers are excluded for conformance with regard to Class F in this document. NOTE The extinction of a metal fire presents a situation so specific (in terms of the metal itself, its form, the configuration of the fire etc.) that it is not possible to define a representative standard fire for the purposes of testing. The efficiency of extinguishers on Class D fires is established on a case by case basis.

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prEN 305 550-5 V1.0.0 (2025-03) Viešoji apklausa

Komentavimo iki data 2025-06-09

Trumpojo nuotolio įtaisai, naudojami nuo 40 GHz iki 260 GHz dažnių diapazone. Prieigos prie radijo ryšio spektro darnusis standartas. 5 dalis. Ultratrumpabangio ryšio (USRC) įranga, veikianti nuo 57 GHz iki 64 GHz diapazone

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prEN 1729-1 Viešoji apklausa

Komentavimo iki data 2025-06-26

Baldai. Mokymo įstaigų kėdės ir stalai. 1 dalis. Funkciniai matmenys

This document specifies functional dimensions and markings for all chairs, stools and tables, for educational institutions, including fixed and adjustable chairs and tables. It applies to both un-upholstered and upholstered chairs and stools as well as to both non-swivel and swivel chairs. It applies to furniture for use with laptop computers or portable devices. It does not apply to ranked seating or special purpose workstations. It does not apply to furniture used by teaching personnel. Annex A (informative) includes guidance on size marks for adjustable chairs and tables. Annex B (normative) includes double-sloped high chairs and associated tables. Annex C (informative) includes guidance on calculating heights of double-sloped chairs and associated tables. Annex D (normative) includes chair measurement methods. Annex E (informative) includes a rationale for functional dimensions.

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prEN 17206-3 Viešoji apklausa

Komentavimo iki data 2025-07-15

Renginių technika. 3 dalis. Bepiločių orlaivių sistemos, skirtos scenoms ir kitoms pasirodymų vietoms. Saugos reikalavimai ir tikrinimas

This document applies to UAS and groups of UAS used in staging and production facilities for events and theatrical productions (entertainment industry). Such facilities include: theatres, multi-purpose halls, exhibition halls; film, television and radio studios; concert halls, schools, bars, discotheques, open-air stages and other rooms for shows and events. This document covers all UAS used in the entertainment industry, indoors and outdoors. This document includes UAS that are excluded from the Commission Delegated Regulation (EU) 2020/1058 and (EU) 2019/945 specifically Article 2, 4 which excludes "UAS intended to be exclusively operated indoors". The document defines the additional hazards and safety requirements for UAS categorized under the "open" category, the "specific" category, and the "certified" category, in particular, those that occur from the specific characteristics of the payload and the environment in the entertainment industry. The principles in this document also apply to UAS based on new technologies or specially designed UAS which are not expressly mentioned here but which nevertheless operate in a similar manner or are meant for similar purposes to the equipment listed above.

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prEN IEC 62446-1:2025 Viešoji apklausa

Komentavimo iki data 2025-06-18

Fotovoltinės sistemos. Reikalavimai, keliami bandymui, dokumentams ir techninei priežiūrai. 1 dalis. Prie tinklo jungiamos sistemos. Dokumentai, perdavimo eksploatuoti bandymai ir tikrinimas

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prEN 15146 Viešoji apklausa

Komentavimo iki data 2025-06-26

Masyvinės spygliuočių medienos skydinė apkala ir apkala dailylentėmis. Apdirbtieji profiliai be įlaido ir išdrožos

This document specifies characteristics of solid wood panelling and cladding without tongue and groove machined from softwoods (wood of trees of the botanical group gymnosperms). Products are intended for interior or exterior use. This document covers treated, untreated and surface treated products, including those made of thermally and chemically modified wood, as well as finger jointed products. This document does not cover processes for treatment, surface coating or modification. NOTE Where further regulatory provisions (e.g. durability, reaction to fire, dangerous substances and generally CE-marking according to CPR) are required, EN 14915 applies.

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