Standartų projektų sąrašas

prEN ISO 23401-1 Viešoji apklausa

Komentavimo iki data 2026-03-31

Odontologija. Protezų pagrindo priderinimo medžiagos. 1 dalis. Kietosios medžiagos (ISO/DIS 23401-1:2026)

This document specifies the requirements for acrylic hard type materials used as chairside denture lining materials and the test methods to determine compliance with these requirements. This document also specifies requirements for packaging and marking the products and for the instructions for use to be supplied by the manufacturer. Dentures which are relined by hard type denture lining materials specified by this document are limited to those of acrylic. This document is not applicable to soft type denture lining materials.

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prEN ISO 15156-2 Viešoji apklausa

Komentavimo iki data 2026-02-24

Naftos ir dujų pramonė, įskaitant mažesnio anglies dioksido pėdsako energijos gamybą. Medžiagos, naudojamos vandenilio sulfido (H2S) turinčiose aplinkose išgaunant naftą ir dujas. 2 dalis. Veikimo aplinkos vertinimas ir medžiagų parinkimas (ISO/DIS 15156-2:2025)

This document gives requirements and recommendations for the selection and qualification of carbon and low-alloy steels for service in equipment used in oil and natural gas production and natural gas treatment plants in H2S-containing environments, whose failure can pose a risk to the health and safety of the public and personnel or to the environment. It can be applied to help to avoid costly corrosion damage to the equipment itself. It supplements, but does not replace, the materials requirements of the appropriate design codes, standards or regulations. This document addresses the resistance of these steels to damage that can be caused by sulfide stress cracking (SSC) and the related phenomena of stress-oriented hydrogen-induced cracking (SOHIC) and soft-zone cracking (SZC). This document also addresses the resistance of these steels to hydrogen-induced cracking (HIC) and its possible development into stepwise cracking (SWC). This document is concerned only with cracking. Loss of material by general (mass loss) or localized corrosion is not addressed. Table 1 provides a non-exhaustive list of equipment to which this document is applicable, including exclusions. This document applies to the qualification and selection of materials for equipment designed and constructed using load controlled design methods. For design utilizing strain-based design methods, see ISO 15156-1:2020, Clause 5. Annex A lists SSC-resistant carbon and low alloy steels, and A.2.4 includes requirements for the use of cast irons. This document is not necessarily suitable for application to equipment used in refining or downstream processes and equipment.

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prEN IEC 61753-382-2 Viešoji apklausa

Komentavimo iki data 2026-03-06

Skaiduliniai optiniai sujungimo įtaisai ir pasyvieji komponentai. Eksploatacinių charakteristikų standartas. 382-2 dalis. C kategorijos bejungčiai vienmodžiai dvikrypčiai G-PON-NGA WWDM įtaisai. Kontroliuojamoji aplinka

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prEN 81-58 Viešoji apklausa

Komentavimo iki data 2026-04-02

Liftų konstravimo ir įrengimo saugos taisyklės. Tikrinimas ir bandymai. 58 dalis. Lifto aikštelės durų atsparumo ugniai bandymas

This document defines the fire resistance test and requirements for landing doors which are intended to provide a barrier to the spread of fire from the landing side and via the lift well in buildings for a period of time classified in this document. The fire resistance requirements are expressed in terms of integrity (E), insulation (EI) and radiation (EW). It is applicable to landing doors installed in the lift well openings at landings and used as means of access to lift car. It also specifies the method of testing and classification of fire resistance of landing doors. The test method is only valid for furnaces where the door is mounted in a vertical position. The test method specifies the measurement of integrity and if required the measurement of radiation and thermal insulation. This document refers to CO2 as means of tracing the propagation of fire. The document does not cover hazards due to emission of gases. This document is not applicable to landing doors which are installed before the date of its publication.

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prEN 50726-3:2026 Viešoji apklausa

Komentavimo iki data 2026-04-12

Perspėjimo apie ekstremaliąsias situacijas ir pavojų sistemos. 3 dalis. Reagavimo į ekstremaliąsias situacijas ir pavojų sistemos. Rizikos valdymo byla ir taikymo pavyzdžiai

This document specifies the structure, construction, content and sequence of a technical risk management process and the technical risk management file in accordance with EN 50726-1. It also describes application examples for technical risk management according to EN 50726-1. An emergency and danger response system (EDRS) is used to minimize risks to life and limb. Its purpose is to report, verify and manage emergencies and dangers in order to prevent or limit personal injury. As already mentioned in the scope of application of EN 50726-1, the implementation of the Occupational Safety and Health Act and the subsequent regulations is intended in order to take particular account of the protection objective defined therein (physical integrity). However, this not only includes a risk assessment (e.g. prevention of acts of violence) for employees, but also for everyone in the property. The requirements of the Occupational Safety and Health Act are therefore intended to be observed when creating a safety concept and as part of the technical risk management process. Consequently, particular attention is drawn to paragraphs 5, 6 and 9 of the Occupational Safety and Health Act. Risks to life and limb can include emergencies and dangerous situations that can cause psychological or physical harm to people. As soon as the top management (e.g. operators, entrepreneurs, companies, approving authorities, building authorities, administrations) of a property has identified such risks to life and limb as part of risk management or similar risk assessments and/or independently became aware of them, this falls within the scope of EN 50726-1.

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prEN 16640 Viešoji apklausa

Komentavimo iki data 2026-02-26

Biologinės kilmės produktai. Biologinės kilmės anglies kiekis. Biologinės kilmės anglies kiekio nustatymas naudojant radioaktyviosios anglies metodą

This document specifies a method for the determination of the bio-based carbon content in products, based on the 14C content measurement. This document also specifies three test methods to be used for the determination of the 14C content from which the bio-based carbon content is calculated: — method A: Liquid scintillation-counter (LSC); — method B: Accelerator mass spectrometry (AMS); and — method C: Saturated-absorption cavity ring-down (SCAR) spectroscopy. The bio-based carbon content is expressed by a fraction of sample mass or as a fraction of the total carbon content. This calculation method is applicable to any product containing carbon, including bio-composites. NOTE This document does not provide the methodology for the calculation of the biomass content of a sample, see EN 16785 1 and EN 16785 2.

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prEN IEC 60839-7-9 Viešoji apklausa

Komentavimo iki data 2026-03-15

Pavojaus signalizavimo ir elektroninės apsaugos sistemos. 7-9 dalis. Pranešimų formatai ir protokolai, skirti pavojaus signalų perdavimo sistemų nuosekliojo duomenų perdavimo sąsajoms. Reikalavimai, keliami pavojaus signalų perdavimo, naudojant interneto protokolą, bendrajam protokolui

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prEN 13075-1 Viešoji apklausa

Komentavimo iki data 2026-03-31

Bitumas ir bituminiai rišikliai. Suirimo elgsenos nustatymas. 1 dalis. Katijoninių bitumo emulsijų suirimo vertės nustatymas taikant mineralinių užpildų metodą

This document specifies a method for the determination of the breaking value of cationic bituminous emulsions. WARNING - Use of this document can involve hazardous materials, operations and equipment. This document does not purport to address all of the safety problems associated with its use. It is the responsibility of the user of this document to identify the hazards and assess the risks involved in performing this test method and to implement sufficient control measures to protect individual operators (and the environment). This includes appropriate safety and health practices and determination of the applicability of regulatory limitations prior to use.

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prEN 16261 Viešoji apklausa

Komentavimo iki data 2026-04-09

Pirotechniniai gaminiai. Ketvirtos kategorijos fejerverkų gaminia

This document specifies requirements for the construction, performance, protective packaging and labelling of Category F4 fireworks, as listed in Clauses 4, 5 and 6. This document does not apply to fireworks intended to be kept or used at temperatures below −20 °C or above 50 °C.

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EN ISO 17573-3:2024/prA1:2025 Viešoji apklausa

Komentavimo iki data 2026-03-01

Elektroninis mokesčių rinkimas. Transporto priemonių rinkliavų sistemų architektūra. 3 dalis. Duomenų žodynas. 1 keitinys (ISO/DIS 17573-3:2024/DAmd1 :2025)

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prEN ISO 20769-1 Viešoji apklausa

Komentavimo iki data 2026-03-12

Neardomieji bandymai. Radiografinis vamzdžių korozijos ir nuosėdų tikrinimas naudojant rentgeno ir gama spinduliuotę. 1 dalis. Tangentinis radiografinis tikrinimas (ISO/DIS 20769-1:2026)

This document specifies fundamental techniques of film and digital radiography with the object of enabling satisfactory and repeatable results to be obtained economically. The techniques are based on generally recognized practice and fundamental theory of the subject. This document applies to the radiographic examination of steel pipes for service induced flaws such as corrosion pitting, generalized corrosion and erosion. Besides its conventional meaning, "pipe" as used in this document is understood to cover other cylindrical bodies such as tubes, penstocks, boiler drums and pressure vessels. Weld inspection for typical welding process induced flaws is not covered, but weld inspection is included for corrosion/erosion type flaws. The pipes can be insulated or not, and can be assessed where loss of material due, for example, to corrosion or erosion is suspected either internally or externally. This document covers the tangential inspection technique for detection and through-wall sizing of wall loss, including with the source: a) on the pipe centre line; and b) offset from pipe centre line by the pipe radius. ISO 20769-2 covers double wall radiography, and note that the double wall double image technique is often combined with tangential radiography with the source on the pipe centre line. This document applies to tangential radiographic inspection using industrial radiographic film techniques, computed radiography (CR) and digital detector arrays (DDA).

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prEN 17768 Viešoji apklausa

Komentavimo iki data 2026-03-24

Organinės ir organinės-mineralinės trąšos. Skaidymas karališkuoju vandeniu cheminiams elementams nustatyti

This document specifies the procedure for digestion of different organic and organo-mineral fertilizers with aqua regia to enable a subsequent determination of arsenic (As), cadmium (Cd), copper (Cu), chromium (Cr), lead (Pb), nickel (Ni), boron (B), cobalt (Co), iron (Fe), manganese (Mn), molybdenum (Mo), zinc (Zn), mercury (Hg), phosphorus (P), potassium (K), magnesium (Mg), calcium (Ca), sulfur (S) and sodium (Na)). This document is applicable to the component materials “by-products”, when used as components of fertilizing products, as well as the fertilizing products blends where a blend is a mix of at least two of the following components: fertilizers, liming materials, soil improvers, growing media, inhibitors, plant biostimulants, and where the following category: organic fertilizers, organo-mineral fertilizers is the highest % in the blend by mass or volume, or in the case of liquid form by dry mass. If the organic fertilizer or the organo-mineral fertilizer is not the highest % in the blend, the European Standard for the highest % of the blend applies. In case a fertilizing product blend is composed of components in equal quantity, the user decides which standard to apply. Variations in analytical methods for fertilizing product blends can lead to differing results as some components or matrix interactions can affect the outcome. Validation procedures have shown that developed standard methods are robust and reliable across diverse product compositions, but possible interferences and unexpected results when analysing fertilizing product blends are possible. The digests are suitable for analysis using prEN 17770 [11] and prEN 17769 [10]. This document is applicable and validated for several types of matrices as indicated in Annex A. NOTE 1 Digestates prepared by the procedure given in this document can also be applied for determination of other elements. NOTE 2 Alternatively, inductively coupled plasma mass spectrometry (ICP-MS) can be used for the measurement if the user proves that the method gives the same results.

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prEN IEC 60695-11-2:2026 Viešoji apklausa

Komentavimo iki data 2026-04-01

Gaisrinio pavojingumo bandymai. 11-2 dalis. Bandymo liepsnos. 1 kW galios paruošto mišinio liepsna. Aparatūra, patvirtinamojo bandymo tvarka ir nurodymai

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prEN IEC 63495-1:2025 Viešoji apklausa

Komentavimo iki data 2026-02-26

Geležinkelio taikmenys. Dinaminio belaidžio galios perdavimo sistemų funkcinio suderinamumo ir saugos reikalavimai. 1 dalis. Bendrieji reikalavimai

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prEN ISO 12800 Viešoji apklausa

Komentavimo iki data 2026-03-12

Branduolinio kuro technologija. Urano oksido miltelių savitojo paviršiaus ploto matavimo, taikant BET metodą, gairės (ISO/DIS 12800:2026)

ISO 12800:2017 gives guidelines on the determination of the specific surface area of as-fabricated uranium dioxide powder by volumetric or gravimetric determination of the amount of nitrogen adsorbed on the powder, and can be applied to other similar materials, e.g. U3O8, UO2-PuO2 powders, and other bodies with similar surface areas, e.g. powder granules or green pellets, provided that the conditions described are fulfilled. Modifications using other adsorbing gases are included. The method is relevant as long as the expected value is in the range between 1 m2/g and 10 m2/g.

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prEN 301 545-2 V1.5.1 (2026-01) Viešoji apklausa

Komentavimo iki data 2026-04-12

Digital Video Broadcasting (DVB); Second Generation DVB Interactive Satellite System (DVB-RCS2); Part 2: Lower Layers for Satellite standard

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prEN 16039 Viešoji apklausa

Komentavimo iki data 2026-04-07

Vandens kokybė. Ežerų hidromorfologinių charakteristikų vertinimo vadovas

This document is applicable to lakes, which are water bodies occupying one or more basins with surface areas typically greater than 1 ha (0,01 km2) and maximum depths (at mean water level) greater than 1 m. All types of permanent and temporary lakes, including natural, modified and artificial, freshwater and brackish, except for those systems which regularly connect to the sea, are included in this document. Based on these criteria, it can be estimated that there are at least 500 000 natural lakes across Europe, most of which are located in the glaciated landscapes in northern and western provinces and in Scandinavia. Lakeland districts also occur locally in areas such as large river catchments (e.g. the Danubian plain) and around the Alps. Elsewhere, naturally occurring lakes are relatively sparse and in such areas reservoirs or pits are more common. This document is designed to: a) support environmental and conservation agencies in meeting the monitoring requirements of the WFD (Article 8, Annex II and Annex V); b) generate data sets appropriate for monitoring and reporting of Natura 2000 sites designated under the Habitats Directive and the Birds Directive; c) provide information supporting other environmental reporting requirements (e.g. in relation to biodiversity or environmental impact assessment); d) support lake management and restoration initiatives. This document: e) defines the key term of ‘hydromorphology’ and other terms relating to the morphological characteristics of lakes and their hydrological regimes; f) details essential features and processes of lakes that should be characterized as part of a hydromorphological survey and for determining the hydromorphological condition of a lake; g) identifies and defines the key pressures affecting European lakes; h) provides guidance on strategies for collecting hydromorphological data depending on resources available and the anticipated use of the assessment; a hierarchy of approaches is recognized from the ‘overview method’ utilizing existing databases, maps and remote sensing data through to recognized field-based survey techniques such as Lake Habitat Survey (LHS) [3]; i) offers guidance on data presentation; j) establishes guidance on data quality assurance issues. This document does not deal with biological assessments in lakes such as the presence or absence of individual species or community composition, nor does it attempt to link specific hydromorphological features with their associated biological communities or to create a classification based on such links. However, it is relevant where plants or other organisms form significant structural elements of the habitat (e.g. a gradation from riparian to littoral vegetation). With respect to the WFD, the hydromorphological condition of a lake only contributes to its status classification at high ecological status (HES). Hydromorphological conditions are not defined for good and moderate status but shall be sufficient to support the biological elements. However, some countries are now beginning to classify lakes according to their hydromorphology. The information gathered by using this standard can provide a basis for classification, but this classification is the subject of EN 16870 and not EN 16039.

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prEN IEC 61375-2-5:2025 Viešoji apklausa

Komentavimo iki data 2026-02-26

Elektroninė geležinkelio įranga. Traukinio ryšio tinklas (TCN). 2-5 dalis. Traukinio pagrindinė eterneto magistralė

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EN IEC 60730-1:2024/prA1:2026 Viešoji apklausa

Komentavimo iki data 2026-03-18

Automatiniai elektriniai valdymo įtaisai. 1 dalis. Bendrieji reikalavimai

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prEN IEC 61951-1:2026 Viešoji apklausa

Komentavimo iki data 2026-04-03

Antriniai elementai ir baterijos su šarminiais ar kitokiais nerūgštiniais elektrolitais. Nešiojamieji sandarieji antriniai elementai ir baterijos. 1 dalis. Nikelio-kadmio elementai

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prEN IEC 61009-1:2026 Viešoji apklausa

Komentavimo iki data 2026-04-08

Buitiniai ir panašios paskirties liekamąja srove valdomi jungtuvai su integruota apsauga nuo viršsrovių. 1 dalis. Bendrosios taisyklės

This document gives general requirements and tests for residual current operated circuit-breakers with integral overcurrent protection for household and similar uses (hereafter referred to as RCBOs), for rated operational voltages not exceeding 440 V AC, with rated frequencies of 50 Hz, 60 Hz or 50/60 Hz and rated currents not exceeding 125 A and rated short-circuit capacities not exceeding 25 000 A. RCBOs are intended to provide fault protection (previously referred to as protection against indirect contact), the exposed conductive parts of the installation being connected to an appropriate earth electrode. These devices are also intended to protect against overcurrents in the wiring installations of buildings and similar applications. They are also intended to be used to provide protection against fire hazards due to a persistent earth fault current. RCBOs having a rated residual operating current not exceeding 30 mA are used for fault protection and additional protection in the case of failure of the protective provisions against electric shock. This document applies to RCBOs performing simultaneously the functions of detection of the residual current, of comparison of the value of this current with the residual operating value and of opening of the protected circuit when the residual current exceeds this value. These devices also perform the function of making, carrying and breaking overcurrents under specified conditions. RCBOs are intended to be operated by ordinary or uninstructed persons and designed not to require maintenance. The requirements of this document apply for standard conditions (see 7.1). Additional requirements can be necessary for RCBOs used in locations which have severe environmental conditions. RCBOs within the scope of this document are intended for use in an environment with pollution degree 2 (see 7.3). RCBOs are suitable for isolation. Special precautions (e.g. surge protective devices) can be necessary when excessive overvoltages are likely to occur on the supply side (for example in the case of supply through overhead lines, see IEC 60364-4-44 and IEC 60364-5-53). RCBOs, with the exception of those with an uninterrupted neutral, are suitable for use in IT systems. RCBOs of the general type are resistant to current surges, including the case where surge voltages (as a result of switching transients or induced by lightning) cause loading currents in the installation without occurrence of flashover. RCBOs of type S are considered to be sufficiently resistant against unwanted tripping even if the surge voltage causes a flashover and a follow-on current occurs. This document also applies to RCBOs obtained by the assembly of an adaptable residual current device with a circuit-breaker. The mechanical assembly is intended to be effected in the factory by the manufacturer, or on site, in which case the requirements of Annex G apply. It also applies to RCBOs having more than one rated current, provided that the means for changing from one discrete rating to another is not accessible in normal service and that the rating cannot be changed without the use of a tool. Particular requirements are necessary for RCBOs intended to be used at frequencies other than 50 Hz or 60 Hz. For RCBOs incorporated in, or intended for association with socket-outlets only, the requirements of this document can be used, as far as applicable, in conjunction with the requirements of IEC 60884-1 or the national requirements of the country where the product is placed on the market. This document does not apply to: .........

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prEN IEC 63116:2025 Viešoji apklausa

Komentavimo iki data 2026-02-25

Apšvietimo sistemos. Bendrieji reikalavimai

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prEN ISO 11737-3 Viešoji apklausa

Komentavimo iki data 2026-03-17

Sveikatos priežiūros produktų sterilizavimas. Mikrobiologiniai metodai. 3 dalis. Bakterinių endotoksinų tyrimas (ISO 11737-3:2023)

This document specifies general criteria to be applied in the determination of bacterial endotoxins on or in health care products, components or raw materials using bacterial endotoxins test (BET) methods, using amebocyte lysate reagents. This document is not applicable to the evaluation of pyrogens other than bacterial endotoxins. Other endotoxin detection methodologies are not included. This document does not address setting specific endotoxin limit specifications.

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prEN 14236 Viešoji apklausa

Komentavimo iki data 2026-04-07

Buitiniai ultragarsiniai dujų skaitikliai

This document specifies requirements and tests for the construction, performance and safety of class 1,0 and class 1,5 battery powered ultrasonic gas meters (hereinafter referred to as meters), having co-axial single pipe, or two pipe connections, used to measure volumes of distributed fuel gases of the 2nd and/or 3rd family gases as given in EN 437:2021, at maximum working pressures not exceeding 0,5 bar )) and maximum actual flow rates of up to 40 m3/h over a minimum ambient temperature range of −10 °C to +40 °C, and minimum gas temperature span of 40 K. This document applies to meters where the measuring element and the register(s) are enclosed in the same case. This document applies to meters with and without built-in temperature conversion, that are installed in locations with vibration and shocks of low significance and in - closed locations (indoor or outdoor with protection as specified by the manufacturer) with condensing or with non-condensing humidity; or, if specified by the manufacturer; - open locations (outdoor without any covering) both with condensing humidity or with non-condensing humidity; and in locations with electromagnetic disturbances likely to be found in residential, commercial and light industrial use. Unless otherwise stated, all pressures given in this document are gauge pressures. Clauses 1 to 14 are for design and type testing only. Requirements for electronic indexes, batteries, valves incorporated in the meter and other additional functionalities are given in EN 16314:2013 Unless otherwise stated in a particular test, the tests are carried out on meters that include additional functionality devices intended by the manufacturer. When more than one meter type is submitted for testing, then each meter type needs to be tested against this document.

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prEN IEC 63544:2025 Viešoji apklausa

Komentavimo iki data 2026-02-18

Augalininkystei skirtas apšvietimas. Augalininkystei skirto apšvietimo šviestuvai su šviesos diodais. Eksploatacinės charakteristikos

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