Standartų projektų sąrašas

prEN IEC 61936-0:2026 Viešoji apklausa

Komentavimo iki data 2026-06-17

Didesnės kaip 1 kV įtampos kintamosios srovės ir didesnės kaip 1,5 kV įtampos nuolatinės srovės elektros įrenginiai. 0 dalis. Principai, kurių reikia laikytis projektuojant ir įrengiant aukštosios įtampos įrenginius. Aukštosios įtampos įrenginių sauga

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prEN 1992-4 Viešoji apklausa

Komentavimo iki data 2026-06-11

Eurokodas 2. Gelžbetoninių konstrukcijų projektavimas. 4 dalis. Betone naudojamų tvirtinimo priemonių projektavimas

(1) EN 1992-4 provides a design method for fastenings (connection of structural elements and non-structural elements to structural components), which are used to transmit actions to the concrete. NOTE 1 Additional rules for the transmission of the fastener loads within the concrete member to its supports are given in EN 1992 1 1:2004, 2.7 and Annex A of this EN. NOTE 2 Inserts embedded in precast concrete elements during production, under Factory Production Control (FPC) conditions and with the due reinforcement, intended for use only during transient situations for lifting and handling, are covered by CEN/TR 15728. (2) EN 1992-4 is intended for safety related applications in which the failure of fastenings can result in collapse or partial collapse of the structure, cause risk to human life or lead to significant economic loss. (3) The support of the fixture can be either statically determinate or statically indeterminate. Each support can consist of one fastener or a group of fasteners. (4) EN 1992-4 is valid for applications which fall within the scope of the EN 1992 series. In applications where special considerations apply, e.g. nuclear power plants or civil defence structures, modifications can be necessary. (5) EN 1992-4 does not cover the design of the fixture. NOTE Rules for the design of the fixture are given in the appropriate standards meeting the requirements on the fixture as given in EN 1992-4.

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prEN ISO 13465 Viešoji apklausa

Komentavimo iki data 2026-06-23

Branduolinė energija. Branduolinio kuro technologija. Spektrofotometrinis neptūnio nustatymas azoto rūgšties tirpaluose (ISO 13465:2024)

This document specifies an analytical method for determining the neptunium concentration by spectrophotometry, with spectrophotometer implemented in hot cell or glove box allowing the analysis of high activity solutions, with a standard uncertainty, with coverage factor k = 1 of about 5 %, in nitric acid solutions after the dissolution of nuclear reactor irradiated fuels, at different steps of the process in a nuclear fuel reprocessing plant or in other nuclear facilities. The method is applicable to sample from the process containing a concentration of neptunium between 10 mg·l-1 and 400 mg·l-1 and uranium concentrations of up to 300 g·l-1.

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prEN IEC 60455-3-8:2026 Viešoji apklausa

Komentavimo iki data 2026-07-10

Elektrinei izoliacijai naudojami reaktyvieji kompaundai su derva. 3-8 dalis. Atskirų medžiagų techniniai reikalavimai. Kabelio reikmenims skirtos dervos

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prEN IEC 61547:2026 Viešoji apklausa

Komentavimo iki data 2026-06-17

Bendrosios paskirties apšvietimo įranga. EMS atsparumo reikalavimai

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EN 50615:2015/prA1:2026 Viešoji apklausa

Komentavimo iki data 2026-06-24

Buitiniai ir panašios paskirties elektriniai prietaisai. Sauga. Įtaisų, skirtų elektrinėms viryklėms ir dujinėms viryklėms su automatinėmis degiklių valdymo sistemomis apsaugoti nuo ugnies ir jai užgesinti, ypatingieji reikalavimai

This European standard deals with the safety of electric devices used for detection, prevention and suppression of fire originated: - from a cooking process, or - from flammable material left on the hob. NOTE The provisions of this document, duly adapted to the specific installation and conditions of use, may be taken into consideration as guidance also for the protection from fire originated from the use of portable cooking appliances or from grills in the oven cavity. The devices covered by this European Standard may operate by interaction with, or integration of, other devices such as smoke detectors, fire detectors, motion detectors, CO detectors and fire extinguishers that are covered by their specific applicable standards.

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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 ISO 7097-2 Viešoji apklausa

Komentavimo iki data 2026-06-23

Branduolinio kuro technologija. Urano nustatymas tirpaluose, urano heksafluoride ir kietosiose medžiagose. 2 dalis. Redukavimo geležimi(II) ir oksidavimo ceriu(IV) titrimetrinės analizės metodas (ISO 7097-2:2022)

This document describes an analytical method for the determination of uranium in samples from pure product materials such as U metal, UO2, UO3, U3O8, uranyl nitrate hexahydrate and uranium hexafluoride from the nuclear fuel cycle. This procedure is sufficiently accurate and precise to be used for nuclear materials accountability. This method can be used directly for the analysis of most uranium and uranium oxide nuclear reactor fuels, either irradiated or un-irradiated, and of uranium nitrate product solutions. Fission products equivalent to up to 10 % burn-up of heavy atoms do not interfere, and other elements which could cause interference are not normally present in sufficient quantity to affect the result significantly. The method recommends that an aliquot of sample is weighed and that a mass titration is used, in order to obtain improved precision and accuracy. This does not preclude the use of alternative techniques which could give equivalent performance. The use of automatic device(s) in the performance of some critical steps of the method has some advantages, mainly in the case of routine analysis.

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prEN 15088 Viešoji apklausa

Komentavimo iki data 2026-06-21

Aliuminis ir aliuminio lydiniai. Konstrukciniai statinių gaminiai. Eksploatacinių charakteristikų vertinimas ir deklaravimas

This document covers products made of aluminium and aluminium alloys intended to be used as structural elements in construction works, including its use in installations. A product may be delivered in its final shape in coils or in one of the following forms: — extruded rods, bars, tubes and profiles; — cold-drawn rods and bars; — precision profiles; — sheets and strips including coil-coated sheets and strips; — plates including tread plates; — drawn tubes and wires; — castings; — forgings. When delivered in coils, the characteristics are assessed on samples taken after de-coiling, straightening, cutting and bending according to the applicable factory production control procedure. Procedures for assessment and verification of constancy of performance (AVCP) of characteristics of structural elements made of aluminium and aluminium alloys are specified in this document. Products delivered in other forms, e.g. delivered after machining or joining operations such as bolting and welding, are excluded from the scope of this document.

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prEN ISO 287 Viešoji apklausa

Komentavimo iki data 2026-06-18

Popierius ir kartonas. Partijos drėgmės kiekio nustatymas. Džiovinimo krosnyje metodas (ISO 287:2026)

ISO 287:2017 specifies an oven-drying method for the determination of the moisture content of a lot of paper and board. The procedure in Clause 8, describing how the test pieces are drawn from the lot, is performed at the time of sampling. ISO 287:2017 is applicable to every type of lot of paper and board, including corrugated board and solid board, provided that the paper or board does not contain any substances, other than water, that are volatile at the temperature specified in this document. NOTE For determination of the dry matter content of a sample of paper or board, e.g. for calculation of the dry mass of the sample, ISO 638[1] can be used.

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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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EN IEC 60688:2024/prAA:2026 Viešoji apklausa

Komentavimo iki data 2026-07-10

Elektriniai matavimo keitliai elektriniams kintamosios ir nuolatinės srovės dydžiams keisti į analoginius arba skaitmeninius signalus

This document applies to transducers (TRD) with electrical inputs and outputs for making measurements of AC or DC electrical quantities. The output signal can be in the form of an analogue or digital signal. This document applies to measuring transducers used for converting electrical quantities such as: – current, – voltage, – active power, – reactive power, – power factor, – phase angle, – frequency, – harmonics or total harmonic distortion, – apparent power, and – DC power to an output signal. NOTE The above electrical quantities include AC and/or DC components.

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EN IEC 62271-215:2021/prA1:2026 Viešoji apklausa

Komentavimo iki data 2026-06-17

Aukštosios įtampos perjungimo ir valdymo įrenginiai. 215 dalis. Su įtampos aptikimo ir rodymo sistemomis naudojami fazių komparatoriai

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prEN IEC 60794-1-108:2026 Viešoji apklausa

Komentavimo iki data 2026-06-17

Optiniai skaiduliniai kabeliai. 1-108 dalis. Bendroji specifikacija. Pagrindinės optinių kabelių bandymo procedūros. Mechaninių bandymų metodai. Lankstymas, E8 metodas

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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 18228 Viešoji apklausa

Komentavimo iki data 2026-07-14

DI rizikos valdymas

This document specifies requirements and provides guidance for risk management of AI systems. It specifies terminology, principles and a process for risk management. The process described in this document intends to assist providers of AI systems to identify the hazards associated with the AI systems, to estimate and evaluate the associated risks, to control these risks, and to monitor the effectiveness of the controls. The process described in this document applies to risks to health, safety and fundamental rights associated with an AI system. The process described in this document is applied throughout the life cycle of the AI system. This document requires providers to establish objective criteria for risk acceptability but does not specify acceptable risk levels. This document is intended for use by organizations providing AI systems, regardless of their size, nature or location. This document is not intended for managing risk faced by organizations. This document is intended to support the organization in meeting applicable regulatory requirements.

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EN 1999-1-5:2023/prA1 Viešoji apklausa

Komentavimo iki data 2026-05-28

Eurokodas 9. Aliumininių konstrukcijų projektavimas. 1-5 dalis. Kevalinės konstrukcijos

1.1 Scope of EN 1999-1-5 (1) EN 1999-1-5 applies to the structural design of aluminium structures, stiffened and unstiffened, that have the form of a shell of revolution or of a round panel in monocoque structures. (2) EN 1999-1-5 covers additional provisions to those given in the relevant parts of EN 1999 for design of aluminium structures. NOTE Supplementary information for certain types of shells is given in EN 1993-1-6 and the relevant application parts of EN 1993 which include: - Part 3-1 for towers and masts; - Part 3-2 for chimneys; - Part 4-1 for silos; - Part 4-2 for tanks; - Part 4-3 for pipelines. (4) The provisions in EN 1999-1-5 apply to axisymmetric shells (cylinders, cones, spheres) and associated circular or annular plates, beam section rings and stringer stiffeners, where they form part of the complete structure. (5) Single shell panels (cylindrical, conical or spherical) are not explicitly covered by EN 1999-1-5. However, the provisions can be applicable if the appropriate boundary conditions are duly taken into account. (6) Types of shell walls covered in EN 1999-1-5 can be (see Figure 1.1): - shell wall constructed from flat rolled sheet with adjacent plates connected with butt welds, termed “isotropic”; - shell wall with lap joints formed by connecting adjacent plates with overlapping sections, termed “lap-jointed”; - shell wall with stiffeners attached to the outside, termed “externally stiffened” irrespective of the spacing of stiffeners; - shell wall with the corrugations running up the meridian, termed “axially corrugated”; - shell wall constructed from corrugated sheets with the corrugations running around the shell circumference, termed “circumferentially corrugated”. [Figure 1.1 - Illustration of cylindrical shell form] (7) The provisions of EN 1999-1-5 are intended to be applied within the temperature range defined in EN 1999-1-1. The maximum temperature is restricted so that the influence of creep can be neglected. For structures subject to elevated temperatures associated with fire, see EN 1999-1-2. (8) EN 1999-1-5 does not cover the aspect of leakage. 1.2 Assumptions (1) The general assumptions of EN 1990 apply. (2) The provisions of EN 1999-1-1 apply. (3) The design procedures are valid only when the requirements for execution in EN 1090-3 or other equivalent requirements are complied with. (4) 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 ISO 12135 Viešoji apklausa

Komentavimo iki data 2026-06-07

Metalinės medžiagos. Bendrasis bandymo metodas kvazistatiniam atsparumui trūkimui nustatyti (ISO 12135:2021, įskaitant pataisytą 2022-08 versiją)

This document specifies methods for determining fracture toughness in terms of K, δ, J and R-curves for homogeneous metallic materials subjected to quasistatic loading. Specimens are notched, precracked by fatigue and tested under slowly increasing displacement. The fracture toughness is determined for individual specimens at or after the onset of ductile crack extension or at the onset of ductile crack instability or unstable crack extension. In cases where cracks grow in a stable manner under ductile tearing conditions, a resistance curve describing fracture toughness as a function of crack extension is measured. In some cases in the testing of ferritic materials, unstable crack extension can occur by cleavage or ductile crack initiation and growth, interrupted by cleavage extension. The fracture toughness at crack arrest is not covered by this document. Special testing requirements and analysis procedures are necessary when testing weldments, and these are described in ISO 15653 which is complementary to this document. Statistical variability of the results strongly depends on the fracture type, for instance, fracture toughness associated with cleavage fracture in ferritic steels can show large variation. For applications that require high reliability, a statistical approach can be used to quantify the variability in fracture toughness in the ductile-to-brittle transition region, such as that given in ASTM E1921. However, it is not the purpose of this document to specify the number of tests to be carried out nor how the results of the tests are to be applied or interpreted.

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prEN IEC 62310-1:2026 Viešoji apklausa

Komentavimo iki data 2026-06-03

Maitinimo šaltinių statinio perjungimo sistemos. 1 dalis. Bendrieji ir saugos reikalavimai

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prEN ISO 6338 Viešoji apklausa

Komentavimo iki data 2026-06-08

SGD įrenginių išmetamo ŠESD kiekio skaičiavimo metodas (ISO 6338:2023)

This document provides a method to calculate the GHG emissions from an LNG liquefaction plant, onshore or offshore. The frame of this document ranges from the inlet flange of the LNG plant’s inlet facilities up to and including the offloading arms to truck, ship or railcar loading. The upstream supply of gas up to the inlet flange of the inlet facilities and the distribution of LNG downstream of the loading arms are only covered in general terms. This document covers: — all facilities associated with producing LNG, including reception facilities, condensate unit (where applicable), pre-treatment units (including but not limited to acid gas removal, dehydration, mercury removal, heavies removal), LPG extraction and fractionation (where applicable), liquefaction, LNG storage and loading, Boil-Off-Gas handling, flare and disposal systems, imported electricity or on-site power generation and other plant utilities and infrastructure (e.g. marine and transportation facilities). — natural gas liquefaction facilities associated with producing other products (e.g. domestic gas, condensate, LPG, sulphur, power export) to the extent required to allocate GHG emissions to the different products. — all GHG emissions associated with producing LNG. These emissions spread across scope 1, scope 2 and scope 3 of the responsible organization. Scope 1, 2 and 3 are defined in this document. All emissions sources are covered including flaring, combustion, cold vents, process vents, fugitive leaks and emissions associated with imported energy. The LNG plant is considered “under operation”, including emissions associated with initial start-up, maintenance, turnaround and restarts after maintenance or upset. The construction, commissioning, extension and decommissioning phases are excluded from this document but can be assessed separately. The emissions resulting from boil-off gas management during loading of the ship or any export vehicle are covered by this document. The emissions from a ship at berth, e.g. mast venting are not covered by this document. This document describes the allocation of GHG emissions to LNG and other hydrocarbon products where other products are produced (e.g. LPG, domestic gas, condensates, sulphur, etc.). This document defines preferred units of measurement and necessary conversions. This document also recommends instrumentation and estimations methods to monitor and report GHG emissions. Some emissions are measured and some are estimated. This document is applicable to the LNG industry. Applications include the provision of method to calculate GHG emissions through a standardized and auditable method, a means to determine their carbon footprint.

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prEN 10380 Viešoji apklausa

Komentavimo iki data 2026-06-02

Gatavi statybiniai nelegiruotojo ir legiruotojo plieno gaminiai

The standard shall cover finished products made of carbon steel, steel alloy and cast steel intended to be used as structural elements in construction works, including its use in installations. Products may be coated, or uncoated. Products may be weldable, or non-weldable. Products made of stainless steel are excluded from this product definition. The standard shall cover: Product group on sections and profiles, product group on plates, sheets, strip and wide flats, product group on bars, rods and wire, product group on hollows and product group on piles and sheet piles.

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prEN 300 392-3-12 V1.4.0 (2026-03) Viešoji apklausa

Komentavimo iki data 2026-06-08

Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D); Part 3: Interworking at the Inter-System Interface (ISI); Sub-part 12: Transport layer independent Additional Network Feature Individual Call (ANF-ISIIC)

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prEN ISO 3823 Naujas

Komentavimo iki data 2026-05-26

Odontologija. Sukieji instrumentai. Plieniniai ir karbidiniai dantų grąžtai (ISO/DIS 3823:2026)

This document specifies the general requirements and test methods for steel and carbide rotary instruments used in dentistry, including designation, colour code and a quality control for these instruments. It applies to all types of steel and carbide rotary instruments independent of type and shape.

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prEN ISO 787-18 Viešoji apklausa

Komentavimo iki data 2026-06-04

Bendrieji pigmentų ir užpildų tyrimo metodai. 18 dalis. Liekanų ant sieto nustatymas. Mechaninio plovimo metodika (ISO/DIS 787-18:2026)

The method specified can also be applied to the examination of other powders or granules which are insoluble in water. It is neither applicable to hydrophobic nor pelletized materials. In the test apparatus the material under test, dispersed in water, is brought into centrifugal motion by a system of rotating jets of water. he water flushes the fine particles through the sieve, the coarse particles being retained on the sieve. The residue on the sieve is dried and weighed. - Cancels and replaces ISO 787/18-1973 and constitutes its technical revision.

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prEN ISO 787-1 Viešoji apklausa

Komentavimo iki data 2026-05-28

Bendrieji pigmentų ir užpildų tyrimo metodai. 1 dalis. Pigmentų spalvos palyginimas (ISO/DIS 787-1:2026)

Procedure for comparing the colour of a coloured pigment with that of an agreed sample. The procedures described in this document are acceptable but the method using an automatic muller is the reference method. The binder is not specified. It shall be agreed between the interested parties. If no binder is agreed, linseed oil, complying with the specification in ISO 150, should be used. - Replaces ISO/R 787/1:1968.

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