Standartų projektų sąrašas

EN 50171:2021/prA1:2026 Viešoji apklausa

Komentavimo iki data 2026-09-27

Elektros tiekimo saugos įrangai centrinės sistemos

This document specifies the general requirements for central power supply systems for an independent energy supply to essential safety equipment. This standard covers systems that are permanently connected to AC supply voltages not exceeding 1 000 V and use batteries as an alternative power source. Central safety power supply systems are intended to ensure energy supply to emergency escape lighting in the event of normal supply failure and may be suitable for energizing other essential safety equipment, for example: – electric circuits of automatic fire extinguishing installations; – paging systems and signalling safety installations; – smoke extraction equipment; – carbon monoxide warning systems; – special safety installations related to specific buildings, e.g. high-risk areas. The power supply of CPS systems should be dedicated only to the essential safety equipment, and not for other type of loads such as general purpose IT or industrial systems etc. Combinations of the aforementioned safety equipment types are permitted together on the same central safety power supply system providing the availability for safety equipment loads is not impaired. A fault occurring in a circuit should not cause the interruption in any other circuit used to supply essential safety equipment. Schematic representations of typical central safety power supply equipment are depicted in Clause 4. Power supply systems for fire alarm equipment that are covered by EN 54 (series) are excluded.

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FprEN IEC 60598-2-24:2026/prAA:2026 Viešoji apklausa

Komentavimo iki data 2026-09-27

Šviestuvai. 2-24 dalis. Ypatingieji reikalavimai. Ribotos paviršiaus temperatūros šviestuvai

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EN IEC 62052-11:2021/prAC:2026 Viešoji apklausa

Komentavimo iki data 2026-09-27

Elektros matavimo įranga. Bendrieji reikalavimai, bandymai ir bandymų sąlygos. 11 dalis. Matavimo įranga

This part of IEC 62052 specifies requirements and associated tests, with their appropriate conditions for type testing of AC and DC electricity meters. This document details functional, mechanical, electrical and marking requirements, test methods, and test conditions, including immunity to external influences covering electromagnetic and climatic environments.

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prEN IEC 62087-8:2026 Viešoji apklausa

Komentavimo iki data 2026-09-27

Garso, vaizdo ir panaši įranga. Energijos sąnaudų nustatymas. 8 dalis. Mažoji tinklo įranga

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prEN IEC 60041:2026 Viešoji apklausa

Komentavimo iki data 2026-09-27

Priimamieji bandymai įrengimo vietoje hidraulinių turbinų, akumuliacinių ir turbininių siurblių hidraulinėms charakteristikoms nustatyti

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EN 1794-2:2024/prA1 Viešoji apklausa

Komentavimo iki data 2026-10-01

Kelių eismo triukšmo mažinimo įrenginiai. Neakustinės eksploatacinės charakteristikos. 2 dalis. Bendrųjų saugos ir aplinkos apsaugos charakteristikų nustatymo metodai

This document specifies methods and criteria for assessing the general safety and environmental performance of road traffic noise reducing devices under typical roadside conditions. Appropriate test methods are provided where these are necessary. The treatment of each topic is covered separately in Annexes A to F.

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prEN 3299 Viešoji apklausa

Komentavimo iki data 2026-09-26

Aerospace series - Shaft-nut and threaded ring, self-locking, right- or left-hand MJ threads, in heat resisting steel FE-PA2601 (A286), silver plated - Technical specification

This document specifies the characteristics, qualification and acceptance requirements for self-locking shaft-nuts and threaded rings, with right- or left-hand MJ threads, in FE-PA2601, silver-plated, for aerospace applications. Temperature class: 450 °C . It is applicable whenever referenced.

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EN ISO 15195:2019/prA1 Viešoji apklausa

Komentavimo iki data 2026-09-26

Laboratorinė medicina. Pamatines matavimo procedūras taikančių kalibravimo laboratorijų kompetencijos reikalavimai. 1 keitinys (ISO 15195:2018/DAM 1:2026)

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prEN ISO 21813 Viešoji apklausa

Komentavimo iki data 2026-09-24

Techninė keramika (modernioji keramika, modernioji techninė keramika). Didelio grynumo bario titanato miltelių cheminės analizės metodai (ISO/DIS 21813:2026)

ISO 21813 specifies methods for the chemical analysis of fine high purity barium titanate powders used as the raw material for fine ceramics. ISO 21813 stipulates the determination methods of the barium, titanium, aluminium, cadmium, calcium, cobalt, dysprosium, iron, lead, magnesium, manganese, nickel, niobium, potassium, silicon, sodium, strontium, vanadium, zirconium, carbon, oxygen and nitrogen contents in high purity barium titanate powders. The barium and titanium contents, the major elements, are determined by using an acid decomposition-gravimetric method or an acid decomposition-inductively coupled plasma-optical emission spectrometry (ICP-OES) method. The aluminium, cadmium, calcium, chromium, cobalt, dysprosium, iron, lead, magnesium, manganese, nickel, niobium, potassium, silicon, strontium, vanadium and zirconium contents are simultaneously determined via an acid digestion-ICP-OES method. The nitrogen content is determined by using an inert gas fusion-thermal conductivity method, while that of oxygen is determined via an inert gas fusion-IR absorption spectrometry method. Finally, the carbon content is determined using a combustion-IR absorption spectrometry method or a combustion-conductometry method.

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ISO 15195:2018/DAmd 1 Viešoji apklausa

Komentavimo iki data 2026-09-24

Laboratorinė medicina. Pamatines matavimo procedūras taikančių kalibravimo laboratorijų kompetencijos reikalavimai. 1 keitinys

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EN 1991-4:2026/prA1 Viešoji apklausa

Komentavimo iki data 2026-09-24

Eurokodas 1. Poveikiai konstrukcijoms. 4 dalis. Silosai ir rezervuarai

1.1 Scope of EN 1991-4 (1) This document provides rules for calculating actions for the structural design of silos and tanks. NOTE 1 Silos are used for the storage of particulate solids. Tanks are used for the storage of liquids. NOTE 2 For limitations on rules for silos given in this document, see 1.3. NOTE 3 For limitations on rules for tanks given in this document, see 1.4. (2) This document includes some provisions for actions on silo and tank structures that are not only associated with the stored particulate solids or liquids (e.g. the effects of thermal differentials) but substantially affected by them. NOTE Liquid loads on tanks are very precisely defined. Many loads on silos are not known with great precision. This document provides guidance for many practical situations for which very limited certain knowledge is available, and the information is derived from the limited experimental and analytical information available, coupled with conclusions drawn from failure investigations. The information is not based on a sound statistical treatment of experimental data. (3) This document is intended for use with concrete, steel, aluminium, timber and FRP storage structures. NOTE FRP is the standard acronym for fibre reinforced polymer materials. (4) This document is also applicable for the structural assessment of existing silos and tanks, unless otherwise specified by the relevant authority or, if not specified, agreed between the relevant parties for the specific project. NOTE 1 Changes in filling or discharge arrangements, changes in the wall friction of inner surfaces, or in the use of the silo, including storage of different particulate solids, can be reasons for assessing existing silos. NOTE 2 Differentiation of the liquid stored can be a reason for assessing existing tanks. 1.2 Assumptions (1) The assumptions of EN 1990-1 apply. (2) This document is intended to be used in conjunction with EN 1990 1, with the other parts of EN 1991, EN 1992, EN 1993, EN 1995, EN 1997, EN 1998 and EN 1999 where relevant to the design of silos and tanks. 1.3 Limitations on silos 1.3.1 Geometrical limitations (1) The following geometrical limitations apply to the design rules for silos and silo batteries (see 3.2.59 and 3.2.60) covered by this document: - the silo planform cross-section shapes are limited to those shown in Figure 1.1c. NOTE 1 Further information concerning planform cross-section geometries is given in Clause 7. NOTE 2 For the determination of the effective diameter dc of the silo see Figure 1.1c; - the following dimensional limitations on the aspect ratio for free-standing single cell silos hc/dc, the overall height hb and the effective diameter dc apply (see Figure 1.1): hc/dc < 10 (1.1) hb < 100 m (1.2) dc < 60 m (1.3) NOTE 3 See Figure 1.1 for hc, dc and hb. - the structural transition lies in a single horizontal plane (see Figure 1.1a). [Figure 1.1 - Silo forms showing dimensions and pressure notation] (2) Only hoppers that are conical (i.e. axisymmetric), rectangular pyramidal with a/b ≤ 1,5, wedge-shaped (i.e. with two vertical end walls on opposite sides) or oblique are covered by this document. Other hopper shapes and hoppers with internal structures require special considerations. (3) Silos with an oblique conical hopper used to achieve an eccentric outlet are covered by this document. (4) Silos with an oblique hopper are covered, but generally silos with a systematically non-symmetric geometry are not specifically covered by this document. These situations include a chisel hopper (i.e. a wedge hopper beneath a circular cylinder) and hoppers with an elongated outlet other than wedge shaped. 1.3.2 Limitations on the stored particulate solids (1) The following limitations on the stored particulate solids apply to the design rules for silos contained in this document: ...

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EN 1991-1-8:2026/prA1 Viešoji apklausa

Komentavimo iki data 2026-09-24

Eurokodas 1. Poveikiai konstrukcijoms. 1-8 dalis. Bangų ir srovių poveikiai pakrančių konstrukcijoms

1.1 Scope of EN 1991 1 8 (1) EN 1991 1 8 gives principles and rules to determine the values of wave and current actions on structures and civil engineering works in the coastal zone, i.e. works connected to, or in close vicinity to the shore. NOTE 1 Provisions in EN 1991 1 8 are limited to hydrodynamic actions that can be directly quantified in terms of wave and/or current induced pressures and associated forces and moments on structures or structural parts. NOTE 2 As opposed to offshore conditions, waves or currents in the coastal zone are generally affected by the presence of the seabed or shore. NOTE 3 The coastal zone is typically defined as the area between the shoreline and the deep-water limit. (2) EN 1991 1 8 describes the principles for defining the hydrodynamic conditions to be used for design, including sea water levels. (3) EN 1991 1 8 addresses specifically actions from currents and waves on the following structure types: — cylindrical structures; — subsea pipelines; — suspended decks; — vertical face structures; — permanently moored floating structures. NOTE 1 Additional guidance can be needed for: — moored structures in the coastal zone for renewable energy production or related to oil and gas production or processing; — moored structures spanning areas with variable wave and current states (e.g. floating aquaculture farms or floating bridges). NOTE 2 For hydraulic pressures caused by quasi-static water levels, and ground water, see EN 1997 (all parts). (4) Actions addressed in EN 1991 1 8 do not cover: — hydraulic resonance in sheltered areas or basins (phenomena also known as harbour resonance); — translation waves, e.g. tsunamis; — waves and currents induced by maritime operations, i.e. vessel wake, berthing and mooring; — hydrodynamic actions induced by earthquakes; — ice-induced pressures and forces; — coastal structures where flood risk and/or erosion or sediment management is the dominant function. 1.2 Assumptions (1) The assumptions given in EN 1990 apply to this document. (2) In addition, it is assumed that actions from waves and currents on coastal structures are determined by personnel appropriately qualified and experienced in the following fields: a) physical coastal environment including physics of waves and currents, statistical properties and propagation of such; b) marine hydrodynamics, wave and current interaction with structures in general and wave and current actions on structures in the coastal zone including i) fixed structures, and ii) floating structures; c) advanced methods including probabilistic methodology and physical model testing.

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EN 1991-3:2026/prA1 Viešoji apklausa

Komentavimo iki data 2026-09-24

Eurokodas 1. Poveikiai konstrukcijoms. 3 dalis. Kranų ir mašinų sukelti poveikiai

1.1 Scope of EN 1991-3 (1) EN 1991-3 defines actions imposed by cranes and other machines including dynamic effects, if relevant, for the structural design of crane or machine supporting structures. (2) EN 1991-3 provides guidance on crane classification in terms of dynamic factors and fatigue actions. (3) EN 1991-3 applies to supporting structures of — bridge cranes, gantry cranes and wall cranes travelling on fixed runways; — fixed machines that cause a harmonic dynamic loading on fixed supporting structures. (4) The principles provided in EN 1991-3 can be applied also to determine actions on supporting structures of cranes other than those referred to in (3). (5) EN 1991-3 does not provide partial factors for actions. NOTE For partial factors for actions, see EN 1990-1:2023+A1:2026, Clause A.5. (6) EN 1991-3 does not provide actions or provisions for the design of cranes and machines. 1.2 Assumptions (1) The general assumptions of EN 1990-1 apply. (2) The design of structures supporting cranes or machines is undertaken using information on actions provided by the manufacturer of the crane or machine.

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EN 1991-1-6:2026/prA1 Viešoji apklausa

Komentavimo iki data 2026-09-24

Eurokodas 1. Poveikiai konstrukcijoms. 1-6 dalis. Poveikiai atliekant darbus

1.1 Scope of prEN 1991-1-6 (1) prEN 1991-1-6 provides guidance and general rules on the determination of actions relevant for the design of buildings and civil engineering works, including geotechnical structures, for their execution stage. NOTE Actions for design during execution include those that only arise from execution activities and act during execution, termed construction actions (for example personnel and hand tools, auxiliary structures, equipment and elements used during execution), and others that are present during the service life of the completed structure (for example self-weight, wind, etc.) but which can act differently and/or have different values during execution. (2) prEN 1991-1-6 provides guidance and general rules for the determination of actions for the design of auxiliary structures, elements and equipment used during execution in case they are designed to the Eurocodes and not to other European Standards. NOTE Other European Standards (e.g. EN 12810, EN 12811, EN 12812) provide specific rules for certain types of auxiliary structures, equipment and elements used during execution. (3) prEN 1991-1-6 gives rules for buildings and bridges during execution to supplement the provisions in EN 1990. NOTE For combination rules for execution, see EN 1990. 1.2 Assumptions (1) The general assumptions given in EN 1990 apply. (2) The application of this document follows the limit state principle and is based on the partial factor method, unless explicitly prescribed differently. (3) The verification of buildings and civil engineering structures in transient design situations is undertaken in accordance with the Eurocodes, accounting for the interaction with any auxiliary structures, elements and/or equipment. (4) When using European product standards covering auxiliary structures, equipment and elements used during execution, it is assumed that the design basis, design requirements and, if provided, the safety and operational design limits specified in these product standards are taken into account. (5) Adequate planning, documentation, communication, control and supervision are provided during execution, involving all relevant parties. NOTE Execution of a structure can involve interaction between several parties from diverse engineering fields, responsible for the design, fabrication, transportation and execution of different subsystems used during the execution of a structure.

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EN 14125:2025/prA1 Viešoji apklausa

Komentavimo iki data 2026-09-24

Termoplastikiniai ir lankstieji metaliniai vamzdynai, skirti degalinių požeminiams įrenginiams

This document specifies requirements for underground pipework systems used to transfer liquid fuels and their vapours at petrol filling stations. Minimum performance requirements covering fitness for purpose, safety and environmental protection are given. This document is applicable to pipework made from thermoplastics, which can include some degree of reinforcement, and to flexible metal pipework. It does not apply to fibre reinforced thermosets, commonly referred to as glass fibre reinforced plastic (GRP), nor to rigid metals. This document is applicable to: - delivery pipes from tanks to dispensers, including positive pressure, vacuum suction and siphon modes; - fill pipes from road tankers to tanks; - vapour recovery and vent pipework; - pipework for secondary containment; - fittings. It does not apply to pipework for use with liquefied petroleum gas.

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prEN 10048 Viešoji apklausa

Komentavimo iki data 2026-09-24

Siaurosios karštai valcuotos plieninės juostos. Matmenų ir formos nuokrypos

This document specifies tolerances on dimensions and shape for hot rolled uncoated narrow strip and cut lengths of non-alloy and alloy steel grades in accordance with Table 1. It is usually produced in thickness of 0,8 mm up to and including 16 mm and generally has a rolled width less than 600 mm but is also produced in rolled widths up to and including 720 mm. Hot-rolled narrow strip has a symmetrical thickness profile with tight crown tolerances and therefore cannot be compared to slit wide strip. This document also applies to hot-rolled strip for cold rolling. Table 1 — Field of application [...table not represented...] This document can also be used for other steels, e.g.: steels from standards not mentioned in Table 1. This document does not apply to: — continuously hot-rolled wide strip and plate/sheet cut from wide strip of non-alloy and alloy steels and narrow strip obtained by slitting wide strip (EN 10051); — hot-rolled patterned steel strip and plate/sheet cut from wide strip (see EN 10363); — uncoated or electrolytically coated cold rolled sheet and strip (see EN 10131); — hot-dip coated steel sheet and strip (EN 10143).

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prEN 14579 Viešoji apklausa

Komentavimo iki data 2026-09-24

Gamtinio akmens bandymo metodai. Garso sklidimo greičio nustatymas

This document specifies a method for the determination of the velocity of propagation of pulses of ultrasonic longitudinal waves in natural stone, both in laboratory and in situ.

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prEN IEC 80000-17:2026 Viešoji apklausa

Komentavimo iki data 2026-09-20

Dydžiai ir vienetai. 17 dalis. Priklausomybė nuo laiko

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prEN IEC 63551-5:2026 Viešoji apklausa

Komentavimo iki data 2026-09-20

Puslaidininkiniai įtaisai. Autonominių transporto priemonių lustų bandymas. 5 dalis. Ultragarsiniai įtaisai

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prEN IEC 63551-6:2026 Viešoji apklausa

Komentavimo iki data 2026-09-20

Puslaidininkiniai įtaisai. Autonominių transporto priemonių lustų bandymas. 6 dalis. Regimojo vaizdo kūrimo įtaisai

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prEN IEC 63470:2026 Viešoji apklausa

Komentavimo iki data 2026-09-20

Užtūros oksido patikimumo ir atsparumo įvertinimo procedūrų gairės, skirtos metalo-oksido-puslaidininkio (MOP) galios lauko tranzistoriams su silicio karbido pagrindu

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prEN IEC 61290-11-1:2026 Viešoji apklausa

Komentavimo iki data 2026-09-20

Optiniai stiprintuvai. Bandymo metodai. 11-1 dalis. Poliarizacijos modų dispersija. Džonso (Jones) matricos tikrinių vektorių analizė (JME)

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EN 50470-3:2022/prA1:2026 Viešoji apklausa

Komentavimo iki data 2026-09-20

Kintamosios srovės elektros skaitikliai. 3 dalis. Ypatingieji reikalavimai. Elektroniniai aktyviosios energijos skaitikliai (tikslumo klasės žymenys A, B ir C)

Particular requirements for static meters intended for residential, commercial and light industrial use, of class indexes A, B and C, for the measurement of alternating current electrical active energy in 50 Hz networks. It specifies performance requirements and type test methods.

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ISO/DIS 6575 Viešoji apklausa

Komentavimo iki data 2026-09-19

Sveikos arba maltos ožragės. Specifikacija

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prEN ISO/IEEE 11073-10406 Viešoji apklausa

Komentavimo iki data 2026-09-21

Sveikatos informatika. Įtaisų funkcinis suderinamumas. 10406 dalis. Ryšys tarp asmeninių medicinos įtaisų. Įtaiso specializavimas. Pagrindinis elektrokardiografas (EKG) (nuo 1 iki 3 EKG išvadų) (ISO/IEEE FDIS 11073-10406:2026)

Within the context of the ISO/IEEE 11073 family of standards for device communication, a normative definition of the communication between personal basic electrocardiograph (ECG) devices and managers (e.g. cell phones, personal computers, personal health appliances, and set top boxes) in a manner that enables plug-and-play interoperability is established in ISO/IEEE11073-10406:2012. Appropriate portions of existing standards including ISO/IEEE 11073 terminology and IEEE 11073-20601 information models are leveraged. The use of specific term codes, formats and behaviours in telehealth environments restricting optionality in base frameworks in favour of interoperability is specified. A common core of communication functionality for personal telehealth basic ECG (1- to 3-lead ECG) devices is defined. Monitoring ECG devices are distinguished from diagnostic ECG equipment with respect to support for wearable ECG devices, limiting the number of leads supported by the equipment to three, and not requiring the capability of annotating or analysing the detected electrical activity to determine known cardiac phenomena. ISO/IEEE 11073-10406:2012 is consistent with the base framework and allows multifunction implementations by following multiple device specializations (e.g. ECG and respiration rate).

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