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prEN ISO 14880-1 Viešoji apklausa

Komentavimo iki data 2026-07-23

Optics and photonics - Microlens arrays - Part 1: Vocabulary (ISO/DIS 14880-1:2026)

This document defines terms for microlens arrays. It applies to arrays of very small lenses formed inside or on one or more surfaces of a common substrate. This document also applies to systems of microlens arrays.

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prEN ISO 20126 Naujas

Komentavimo iki data 2026-06-11

Odontologija. Rankiniai dantų šepetėliai. Bendrieji reikalavimai ir bandymo metodai (ISO/DIS 20126:2026)

This document specifies requirements and test methods for the physical properties of manual toothbrushes in order to promote the safety of these products for their intended use. This document does not specify any requirements and test methods for the physical properties of toothbrushes for which all the cleaning elements in the head are elastomer. This document does not apply to manual single tuft toothbrushes, single use, interdental and powered oral hygiene devices. These types of oral hygiene products are evaluated for their safety in-use by appropriate test methods or clinical trials. In addition, for the filaments end-rounding requirements, this document does not apply to particular filament types which are very thin (less than 0,1 mm outside diameter) or have no sharp edges (e.g. tapered, feathered, with split tips, or spherical cap) or non-synthetic filaments, where applying end-rounding process is inappropriate or impossible. These types of manual toothbrushes are evaluated for their safety in-use by appropriate test methods or clinical trials appropriately.

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prEN IEC 60068-2-67:2026 Viešoji apklausa

Komentavimo iki data 2026-07-10

Aplinkos poveikio bandymai. 2 dalis. Bandymai. Cy bandymas. Nuostovusis ir paspartintasis komponentų kaitinimo drėgnoje aplinkoje bandymas

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EN 12209:2024/prA1 Viešoji apklausa

Komentavimo iki data 2026-07-14

Statybiniai apkaustai. Mechaninės spynos ir užraktų plokštelės. Charakteristikos ir bandymo metodai

This document specifies product characteristics and test methods of mechanically operated locks and their locking plates. This document covers mechanically operated locks and their locking plates which are either manufactured and placed on the market in their entirety by one producer or assembled from sub-assemblies produced by more than one producer and designed to be used in combination. This document does not cover assessment of the contribution of the product to the fire resistance of specific fire resistance and/or smoke control door set assemblies. This document is not applicable to mechanically/electromechanically cylinders, handles, locks for windows, padlocks, locks for safes, furniture locks or prison locks. This document does not specify mechanically operated multipoint locks and their locking plates which are specified by EN 15685.

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prEN IEC 63567-4:2026 Viešoji apklausa

Komentavimo iki data 2026-07-29

Puslaidininkiniai įtaisai. Puslaidininkinių įtaisų gamybos komponentų ir tikrinimo įrangos eksploatacinių charakteristikų įvertinimas. 4 dalis. Lazerinio pjaustymo proceso matmenų tikslumo įvertinimo metodai

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prEN ISO 13164-3 Naujas

Komentavimo iki data 2026-06-11

Vandens kokybė. Radonas 222. 3 dalis. Tyrimo metodas taikant emanometriją (ISO/DIS 13164-3:2026)

This part of ISO 13164 specifies a test method for the determination of 222Rn activity concentration in a sample of water following its transfer from the aqueous phase to the gas phase by degassing and its detection. It gives recommendations for rapid measurements performed within less than 1 h. The 222Rn activity concentrations, which can be measured by this test method utilizing currently available instruments, range from 0,1 Bq∙l−1 to several hundred thousand becquerels per litre for a 100 ml test sample. This test method is used successfully with drinking water samples. The laboratory is responsible for ensuring the validity of this test method for water samples of untested matrices. This test method can be applied on field sites or in the laboratory.

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prEN 12753 Viešoji apklausa

Komentavimo iki data 2026-06-23

Paviršiaus apdorojimo įrangos išmetamųjų dujų terminio ir katalizinio valymo sistemos. Saugos reikalavimai

This document specifies machinery safety requirements. This document is applicable to thermal and catalytic cleaning systems with regenerative or recuperative preheating for exhaust gas loaded with flammable substances from surface treatment equipment. This document deals with all significant hazards, hazardous situations or hazardous events relevant to thermal and catalytic cleaning systems for exhaust gas from surface treatment equipment, when these are used as intended and under conditions of misuse which are reasonably foreseeable. See Annex A for significant hazards. The specific significant risks related to the use of this machinery with exhaust gases from sources other than surface treatment equipment (e.g. from chemical production, tank farms, cremation, wastewater treatment) are not dealt with in this document. Limits of thermal and catalytic cleaning systems for exhaust gas from surface treatment equipment are specified by the interfaces given in Figure 1. Figure 1 - Limits of the machinery This document is not applicable to - cleaning systems without preheating of input gas; - cleaning systems for input gas with a concentration of flammable substances higher than those specified in 4.8; - cleaning systems for input gas containing H2 or pyrolysis gases; - cleaning systems for input gas with a O2/N2 ratio higher than in air; - absorptive and adsorptive exhaust gas cleaning systems; - membrane separators; - UV exhaust gas cleaning systems; - filter systems; - plasma exhaust gas cleaning systems; - biological exhaust gas cleaning systems. This document is not applicable to the machinery or machinery components manufactured before the date of its publication.

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prEN ISO 13503-5 Viešoji apklausa

Komentavimo iki data 2026-07-09

Naftos ir gamtinių dujų pramonė. Našaus klodo atidengimo skiediniai ir medžiagos. 5 dalis. Pleišijimo užpildų ilgalaikio pralaidumo matavimo procedūros (ISO/DIS 13503-5:2026)

ISO 13503-5:2006 provides standard testing procedures for evaluating proppants used in hydraulic fracturing and gravel packing operations. ISO 13503-5:2006 provides a consistent methodology for testing performed on hydraulic fracturing and/or gravel packing proppants. The "proppants" mentioned henceforth in this part of ISO 13503-5:2006 refer to sand, ceramic media, resin-coated proppants, gravel packing media, and other materials used for hydraulic fracturing and gravel-packing operations. ISO 13503-5:2006 is not applicable for use in obtaining absolute values of proppant pack conductivities under downhole reservoir conditions.

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EN 1993-1-2:2024/prA1 Viešoji apklausa

Komentavimo iki data 2026-06-25

Eurokodas 3. Plieninių konstrukcijų projektavimas. 1-2 dalis. Konstrukcijų elgsenos ugnyje skaičiavimas

1.1 Scope of prEN 1993-1-2 (1) This document provides rules for the design of steel structures for the accidental situation of fire exposure. This Part of EN 1993 only identifies differences from, or supplements to, normal temperature design. (2) This document applies to steel structures required to fulfil a loadbearing function. (3) This document does not include rules for separating function. (4) This document gives principles and application rules for the design of structures for specified requirements in respect of the aforementioned function and the levels of performance. (5) This document applies to structures, or parts of structures, that are within the scope of EN 1993 1 1 and are designed accordingly. (6) This document is intended to be used in conjunction with EN 1991-1-2, EN 1993-1-1, EN 1993 1-3, EN 1993-1-4, EN 1993-1-5, EN 1993-1-6, EN 1993-1-7, EN 1993-1-8, EN 1993-1-11, EN 1993-1-13 or EN 1993-1-14. 1.2 Assumptions (1) Unless specifically stated, EN 1990, EN 1991(all parts) and EN 1993-1-1 apply. (2) The design methods given in prEN 1993-1-2 are applicable if - the execution quality is as specified in EN 1090-2 and/or EN 1090-4, and - the construction materials and products used are as specified in prEN 1993-1-1:2020, Table 5.1 and Table 5.2 and in prEN 1993-1-3:2022, Table 5.1 and Table 5.2, or in the relevant material and product specifications. (3) In addition to the general assumptions of EN 1990 the following assumptions apply: - the choice of the relevant design fire scenario is made by appropriate qualified and experienced personnel, or is given by the relevant national regulation; - any fire protection measure taken into account in the design will be adequately maintained.

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prEN IEC 61853-3:2026 Viešoji apklausa

Komentavimo iki data 2026-07-08

Fotovoltinių modulių eksploatacinių charakteristikų bandymai ir energiniai parametrai. 3 dalis. Fotovoltinių modulių energiniai parametrai

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prEN 14492-1 Viešoji apklausa

Komentavimo iki data 2026-07-30

Kranai. Varikliniai suktuvai ir keltuvai. 1 dalis. Varikliniai suktuvai

This document is applicable to the design, information for use, maintenance and testing of power-driven winches for which the prime mover is an electric motor, hydraulic motor, or pneumatic motor. Winches are designed for the movement or manipulation of loads supported on level or inclined planes in situations where risks resulting from a failure of the winding mechanism or pulling medium are mitigated by external measures. This document is not applicable to devices which handle suspended loads. Generally, a winch is used without any additional transport movement, except in cases where a winch is used on a stranded vehicle for self-recovery of the vehicle. Applications of winches covered are for example, but not limited to: a) rope winches; b) belt winches, except steel belts used as pulling media; c) traction winches, including double capstan and traction sheave winches. These types of winches a) to c) also include the following specific applications: — vehicle recovery winches; — winches for boat trailers; — winches for stationary offshore applications. NOTE Examples are shown in Annex H. This document does not apply to: — power-driven hoists in accordance with EN 14492-2; — forestry winches in accordance with EN ISO 19472-1; — winches for seagoing vessels and mobile offshore units; — winches for the lifting of persons; — NGL building hoists in accordance with EN 14492-2; — winches for the handling of hot molten masses. This document deals with the significant hazards, hazardous situations or hazardous events relevant to power driven winches when used as intended and under conditions of misuse which are reasonably foreseeable, identified in Annex A. This document does not specify additional requirements for hazards related to the use of power driven winches in explosive atmospheres in underground mines.

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prEN 13201-3 Viešoji apklausa

Komentavimo iki data 2026-07-28

Kelių apšvietimas. 3 dalis. Eksploatacinių charakteristikų skaičiavimas

This European Standard specifies the conventions and mathematical procedures to be adopted in calculating the photometric performance of road lighting installations designed in accordance with the parameters described in EN 13201-2 to ensure that every lighting calculation is based on the same mathematical principles. The design procedure of a lighting installation also requires the knowledge of the parameters involved in the described model, their tolerances and variability. These aspects are not considered in this part of EN 13201 but a procedure to analyse their contribution in the expected results is suggested in EN 13201-4 and it can also be used in the design phase.

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EN 1993-1-3:2024/prA1 Archyvuotas

Komentavimo iki data 2026-05-28

Eurokodas 3. Plieninių konstrukcijų projektavimas. 1-3 dalis. Šaltai suformuoti elementai ir lakštai

1.1 Scope of prEN 1993-1-3 (1) This document provides rules for structural design of cold-formed steel members and sheeting. (2) This document applies to cold-formed steel products made from coated or uncoated hot- or cold-rolled sheet or strip, which have been cold-formed by processes such as roll-forming or press braking. It also covers sheeting and members which are curved during fabrication by continuous bending or roll-forming. Sheeting which has the curvature created by crushing the inner flanges is not included. This document is also applicable to the design of profiled steel sheeting for composite steel and concrete slabs at the construction stage, see EN 1994. The execution of steel structures made of cold-formed steel members and sheeting is covered in EN 1090 4. Provisions for bolted connections are provided in EN 1090 2. NOTE The rules in prEN 1993 1 3 complement the rules in other parts of EN 1993 1. (3) Methods are also given for stressed-skin design, using steel sheeting as a structural diaphragm. (4) This document does not apply to cold-formed circular and rectangular structural hollow sections supplied to EN 10219, for which reference is made to EN 1993 1 1 and EN 1993 1 8. (5) This document provides methods for design by calculation and for design assisted by testing. The methods for design by calculation apply only within the stated ranges of material properties and geometric proportions, for which sufficient experience and test evidence is available. These limitations do not apply to design assisted by testing. 1.2 Assumptions (1) Unless specifically stated, EN 1990, EN 1991 (all parts) and EN 1993 1 1 apply. (2) The design methods given in prEN 1993 1 3 are applicable if: - the execution quality is as specified in EN 1090 4, the execution quality of bolted connections is as specified in EN 1090 2, and - the construction materials and products are as specified in the relevant parts of EN 1993 (all parts), or in the relevant material and product specifications. (2) EN 1993 is intended to be used in conjunction with: - the parts of EN 1992 to EN 1999 where steel structures or steel components are referred to within those documents; - EN, EAD and ETA standards for construction products relevant to steel structures.

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EN IEC 60335-2-113:2023/prAB:2026 Viešoji apklausa

Komentavimo iki data 2026-06-17

Buitiniai ir panašios paskirties elektriniai prietaisai. Sauga. 2-113 dalis. Ypatingieji reikalavimai, keliami kosmetikos ir grožio priežiūros prietaisams su lazeriais ir intensyvios šviesos šaltiniais

This European Standard deals with the safety of cosmetic and beauty care appliances incorporating lasers or intense light sources for household and similar purposes, where their operation relies on contact with the skin, their rated voltage being not more than 250 V

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prEN IEC 60034-30-2:2026 Viešoji apklausa

Komentavimo iki data 2026-07-03

Sukiosios elektros mašinos. 30-2 dalis. Keičiamo greičio kintamosios srovės variklių našumo klasės (IE kodas)

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prEN 17461 Viešoji apklausa

Komentavimo iki data 2026-07-07

Gimnastikos įranga. Atskiros ir daugiafunkcės šuolių pakylos. Saugos reikalavimai ir bandymo metodai

This document specifies functional requirements and specific safety requirements in addition to the general safety standard EN 913 for gymnastic and vaulting boxes for individual or multifunctional use. This document also specifies requirements when multifunctional boxes are used in combination with accessories.

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prEN IEC 60384-1:2026 Viešoji apklausa

Komentavimo iki data 2026-07-31

Elektroninėje įrangoje naudojami pastovieji kondensatoriai. 1 dalis. Bendroji specifikacija

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prEN 50130-4:2026 Viešoji apklausa

Komentavimo iki data 2026-08-05

Pavojaus signalizavimo sistemos. 4 dalis. Elektromagnetinis suderinamumas. Atsparumo reikalavimai

This document specifies immunity requirements for electromagnetic compatibility (EMC). It applies to components of the following safety and security systems intended for use in residential, commercial, light industrial and industrial environments: — access control systems, for security applications; — alarm transmission systems ; — video surveillance systems, for security applications; — fire detection and fire alarm systems; — hold-up alarm systems; — intruder alarm systems; — social alarm systems. The document applies to indoor and outdoor applications of fixed, movable and portable equipment.

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EN 1999-1-2:2023/prA1 Archyvuotas

Komentavimo iki data 2026-05-28

Eurokodas 9. Aliumininių konstrukcijų projektavimas. 1-2 dalis. Konstrukcijų elgsenos ugnyje skaičiavimas

1.1 Scope of EN 1999-1-2 (1) EN 1999-1-2 deals with the design of aluminium structures for the accidental situation of fire exposure and is intended to be used in conjunction with EN 1999-1-1, EN 1999-1-2, EN 1999-1-3, EN 1999-1-4 and EN 1999-1-5. This document only identifies differences from, or supplements to, normal temperature design. (2) EN 1999-1-2 applies to aluminium structures required to fulfil a load bearing function. (3) EN 1999-1-2 gives principles and application rules for the design of structures for specified requirements in respect of the aforementioned function and the levels of performance. (4) EN 1999-1-2 applies to structures, or parts of structures, that are within the scope of EN 1999 1 1 and are designed accordingly. (5) The methods given in EN 1999-1-2 are applicable to the following aluminium alloys: EN AW-3004 - H34 EN AW-5083 - O and H12 EN AW-6063 - T5 and T6 EN AW-5005 - O and H34 EN AW-5454 - O and H34 EN AW-6082 - T4 and T6 EN AW-5052 - H34 EN AW-6061 - T6 (6) The methods given in EN 1999-1-2 are applicable also to other aluminium alloy/tempers of EN 1999 1-1, if reliable material properties at elevated temperatures are available or the simplified assumptions in 5.2.1 are applied. 1.2 Assumptions (1) In addition to the general assumptions of EN 1990, the following assumptions apply: - the choice of the relevant design fire scenario is made by appropriate qualified and experienced personnel, or is given by the relevant national regulation. - any active and passive fire protection systems taken into account in the design will be adequately maintained. (2) EN 1999 is intended to be used in conjunction with: - European Standards for construction products relevant for aluminium structures - EN 1090-1, Execution of steel structures and aluminium structures - Part 1: Requirements for conformity assessment of structural components - EN 1090-3, Execution of steel structures and aluminium structures - Part 3: Technical requirements for aluminium structures

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prEN IEC 60335-2-31:2026/prAA:2026 Viešoji apklausa

Komentavimo iki data 2026-06-17

Buitiniai ir panašios paskirties elektriniai prietaisai. Sauga. 2-31 dalis. Ypatingieji reikalavimai, keliami garų rinktuvams ir kitokiems garų šalintuvams

This European Standard deals ith the safety of electric range hoods and other cooking fume extractors intended for installing above, beside, behind or under household cooking ranges, hobs and similar cooking appliances, their rated voltage being not more than 250 V.

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EN 1991-1-3:2025/prA1 Viešoji apklausa

Komentavimo iki data 2026-07-02

Eurokodas 1. Poveikiai konstrukcijoms. 1-3 dalis. Sniego apkrovos

1.1 Scope of EN 1991-1-3 (1) EN 1991-1-3 gives principles and rules to determine the values of loads due to snow to be used for the structural design of buildings and civil engineering works. (2) This document does not apply to sites at altitudes above 1 500 m, unless otherwise specified. NOTE For rules for the treatment of snow loads for altitudes above 1 500 m, see 6.1. (3) This document does not give guidance on specialist aspects of snow loading, for example: - impact snow loads resulting from snow sliding off or falling from a higher roof; - changes in shape or size of the construction works due to the presence of snow or the accretion of ice which could affect the wind action; - loads in areas where snow is present all year round; - lateral loading due to snow creep (e.g. lateral loads exerted by drifts); - loads due to artificial snow. 1.2 Assumptions The assumptions given in EN 1990:2023, 1.2 apply.

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prEN ISO 24577 Viešoji apklausa

Komentavimo iki data 2026-07-05

Hidrometrija. Bekontakčių metodų naudojimas tėkmės greičiui vandens paviršiuje matuoti ir debitui nustatyti (ISO/DIS 24577:2026)

Scope of the proposed deliverable To determine liquid flow, the following steps are necessary: 1) Measure water surface (or near surface) velocity with techniques using radar, laser or video images; 2) Adjust wind effects to the water surface velocity; 3) Translate the adjusted velocity to an averaged velocity by applying the velocity index or numerical computation; 4) Determine the area of the wetted cross section from the stage area relationship; and 5) Obtain water discharge by multiplying the averaged velocity by the wetted cross sectional area. This procedure is applicable to different kinds of channel and river section. Applications include: •Rivers and streams; •Artificial channels such as drainage ditches and irrigation channels; •Wastewater flows discharging to sewer or the environment through channels or partially filled pipes; •In sewer measurements; •Process flows on wastewater treatment plants. For any individual site the method to measure water surface velocity should be selected appropriately, based on the site conditions, nature of the application and uncertainty required. Take a special note that non-contact methods should NOT be used where a tidal phenomenon is present.

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prEN IEC 60335-2-36:2026 Viešoji apklausa

Komentavimo iki data 2026-07-29

Buitiniai ir panašios paskirties elektriniai prietaisai. Sauga. 2-36 dalis. Ypatingieji reikalavimai, keliami komercinėms elektrinėms viryklėms, orkaitėms, kaitlentėms ir kaitlenčių elementams

This standard deals with the safety of electrically operated commercial cooking and baking ranges, ovens, hobs, hob elements and similar appliances, their rated voltage being not more than 250 V for single-phase appliances connected between one phase and neutral and 480 V for other appliances.

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prEN IEC 60335-2-49:2026/prA1:2026 Viešoji apklausa

Komentavimo iki data 2026-08-05

Buitiniai ir panašios paskirties elektriniai prietaisai. Sauga. 2-49 dalis. Ypatingieji reikalavimai, keliami komerciniams elektriniams maisto ir indų šildymo prietaisams

This European Standard deals with the safety of electrically operated commercial hot cupboards not intended for household use. The rated voltage being not more than 250 V for single-phase appliances connected between one phase and neutral, and 480 V for other appliances. Hot cupboards with heated tops, heated display cases, heated crockery dispensers and heated shelves and tables are also within the scope of this standard. The appliances within the scope of this standard are typically used in restaurants, canteens, hospitals and similar commercial enterprises.

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EN 1998-1-1:2024/prA1 Archyvuotas

Komentavimo iki data 2026-05-28

Eurokodas 8. Atsparių žemės drebėjimui konstrukcijų projektavimas. 1-1 dalis. Bendrosios taisyklės ir seisminiai poveikiai

1.1 Scope of EN 1998-1-1 (1) This document is applicable to the design and verification of buildings and other structures for earthquake resistance. It gives general rules relevant to all types of structures, except for structures belonging to consequence classes CC0 or CC4. NOTE For further details on consequence class CC4, see 4.2. (2) This document provides basic performance requirements and compliance criteria applicable to buildings and other structures for earthquake resistance. (3) This document gives rules for the representation of seismic actions and the description of the design seismic situations. NOTE Certain types of structures, dealt with in other parts of Eurocode 8, need supplementary rules which are given in those relevant Parts. (4) This document contains general methods for structural analysis and verification under seismic actions, including base-isolated structures and structures with distributed dissipative systems. (5) This document contains rules for modelling and verification of ultimate strengths and deformations. 1.2 Assumptions (1) The assumptions of EN 1990 apply to this document. (2) It is assumed that no change in the structure and in the masses carried by the structure takes place during the construction phase or during the subsequent life of the structure with respect to the design unless proper justification and verification is provided. This applies also to ancillary elements (see 3.1.2). Due to the specific nature of seismic response, this applies even in the case of changes that lead to an increase of the structural resistance. (3) The design documents are assumed to indicate the geometry, the detailing, and the properties of the materials of all structural members. If appropriate, the design documents are also assumed to include the properties of special devices to be used and the distances between structural and ancillary elements. The necessary quality control provisions are assumed to be specified. (4) Members of special structural importance requiring special checking during construction are assumed to be identified in the design documents and the verification methods to be used are assumed to be specified. (5) It is assumed that in the case of high seismic action class (4.1.1(4)), formal quality system plans, covering design, construction, and use, additional to the control procedures prescribed in the other relevant Eurocodes, are specified.

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