Standartų projektų sąrašas

prEN ISO 10555-5 Viešoji apklausa

Komentavimo iki data 2026-04-23

Kraujagyslių kateteriai. Sterilūs ir vienkartiniai kateteriai. 5 dalis. Periferiniai kateteriai su vidine adata (ISO 10555-5:2026)

ISO 10555-5:2013 specifies requirements for over-needle peripheral intravascular catheters, intended for accessing the peripheral vascular system, supplied in the sterile condition and intended for single use.

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prEN ISO 20899 Viešoji apklausa

Komentavimo iki data 2026-05-02

Vandens kokybė. Plutonis ir neptūnis. Bandymas ICP-MS metodu (ISO/DIS 20899:2026)

This document specifies methods to determine the 239Pu, 240Pu, 241Pu and 237Np by inductively coupled plasma mass spectrometry (ICP-MS). The mass concentrations obtained can be converted into activity concentrations. Due to its relatively short half-life and 238U isobaric interference, 238Pu can hardly be measured by this method. To quantify 238Pu isotope by mass spectrometry, other techniques can be used (ICP-MS with collision-reaction cell, ICP-MS/MS with collision-reaction cell or chemical separation). Alpha spectrometry measurement, as described in ISO 13167,[8] is currently used[9]. The method is applicable to test samples of supply/drinking water, rainwater, surface and ground water, marine water, as well as cooling water, industrial water, domestic, and industrial wastewater after proper sampling and handling, and test sample preparation. A chemical separation of Np and Pu, with quantitative removal of all other elements (including uranium, americium, etc.) is mandatory, given all the potential interferences that may bias the measurement or lead to false positives. Chemical separations can eliminate most of the 238U. However, use of reagents, glassware, and atmosphere for the chemical separation, will also add 238U to the samples and prevent measurement of 238Pu. The limit of detection depends on the sample volume, the instrument used, the background count rate, the detection efficiency, the counting time, and the chemical yield. The detection limit of the method described in this document, using currently available ICP-MS apparatus, is approximately 1 mBq·l-1 for 239Pu, 240Pu, 237Np and 1 Bq·l-1 for 241Pu, which is lower or of the same order of magnitude than the WHO criteria for safe consumption of drinking water (1 mBq·l-1 for 239Pu, 240Pu, 237Np and 10 Bq·l-1 for 241Pu[4]).This method covers the measurement of those radionuclides in water at activity concentrations between approximately[10][11]: — 1 mBq·l−1 to 5 Bq·l−1 for 239Pu, 240Pu and 237Np; — 1 Bq·l−1 to 5 Bq·l−1 for 241Pu. Samples with higher activity concentrations than 5 Bq·l−1 can be measured if a dilution is performed. The higher is the concentration factor, the lower are the LD and LQ expressed in Bq/L of water. A preconcentration is especially useful for the quantification of 241Pu that is usually the less abundant isotope of plutonium. The method described in this document is applicable in the event of an emergency situation. Filtration of the test sample is necessary. The analysis of 239Pu, 240Pu, 241Pu and 237Np adsorbed to suspended matter is not covered by this method. The analysis of the insoluble fraction requires a mineralization step that is not covered by this document. In this case, the measurement is performed separately on each phase or the total phase. It is the user’s responsibility to ensure the validity of this test method for the water samples tested.

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prEN ISO 19226 Archyvuotas

Komentavimo iki data 2026-03-12

Branduolinė energija. Reaktoriaus korpusą ir vidinius komponentus veikiančio neutronų srauto tankio ir išmušimų atomui skaičiaus (dpa) nustatymas (ISO/DIS 19226:2026)

ISO 19226:2017 provides a procedure for the evaluation of irradiation data in the region between the reactor core and the inside surface of the containment vessel, through the pressure vessel and the reactor cavity, between the ends of active fuel assemblies, given the neutron source in the core. NOTE These irradiation data could be neutron fluence or displacements per atom (dpa), and Helium production. The evaluation employs both neutron flux computations and measurement data from in-vessel and cavity dosimetry, as appropriate. This document applies to pressurized water reactors (PWRs), boiling water reactors (BWRs), and pressurized heavy water reactors (PHWRs). ISO 19226:2017 also provides a procedure for evaluating neutron damage properties at the reactor pressure vessel and internal components of PWRs, BWRs, and PHWRs. Damage properties are focused on atomic displacement damage caused by direct displacements of atoms due to collisions with neutrons and indirect damage caused by gas production, both of which are strongly dependent on the neutron energy spectrum. Therefore, for a given neutron fluence and neutron energy spectrum, calculations of the total accumulated number of atomic displacements are important data to be used for reactor life management.

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prEN ISO 14451-4 Viešoji apklausa

Komentavimo iki data 2026-03-19

Pirotechniniai gaminiai. Pirotechniniai gaminiai, skirti transporto priemonėms. 4 dalis. Dujų mikrogeneratorių reikalavimai ir skirstymas į kategorijas (ISO/DIS 14451-4:2026)

ISO 14451-4:2013 specifies the types and order of tests to be applied to micro gas generators and sets out the associated acceptance criteria and means of categorization. ISO 14451-4:2013 applies to type tests. ISO 14451-4:2013 is not applicable to articles containing military explosives or commercial blasting agents except for black powder or flash composition.

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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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ISO/IEC DIS 28033-2 Viešoji apklausa

Komentavimo iki data 2026-04-12

Informacijos saugumas. Visiškai homomorfinis šifravimas. 2 dalis. Tiksliosios sveikųjų skaičių modulių aritmetikos mechanizmai

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prEN ISO 25178-6 Viešoji apklausa

Komentavimo iki data 2026-04-30

Geometrinės gaminio specifikacijos (GGS). Plotinė paviršiaus tekstūra. 6 dalis. Paviršiaus tekstūros matavimo metodų topografija (ISO/DIS 25178-6:2026)

ISO 25178-6:2010 describes a classification system for methods used primarily for the measurement of surface texture. It defines three classes of methods, illustrates the relationships between the classes, and briefly describes specific methods.

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prEN 566 Viešoji apklausa

Komentavimo iki data 2026-04-10

Alpinizmo įranga. Pakėlimo virvės. Saugos reikalavimai ir bandymo metodai

This document specifies safety requirements and test methods for slings used for mountaineering including climbing and related activities.

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EN 50310:2016/prA2:2026 Archyvuotas

Komentavimo iki data 2026-03-13

Pastatų ir kitų statinių telekomunikacijų sujungimo tinklai

This document specifies requirements and provides recommendations for the design and installation of connections (bonds) between various electrically conductive elements in buildings and other structures, during their construction or refurbishment, in which information or telecommunications technology equipment is intended to be installed in order to: a) minimise the d.c. and a.c. potential differences in order to reduce the risk of malfunction of that equipment and interconnecting cabling due to electromagnetic disturbance; b) provide the telecommunications installation with a reliable signal reference – which may improve immunity from electromagnetic interference (EMI). The requirements of this European Standard are applicable to the buildings and other structures within premises addressed by EN 50174-2 (e.g. residential, office, industrial and data centres) but information given in this European Standard may be of assistance for other types of buildings and structures. NOTE Telecommunications centres (operator buildings) are addressed by ETSI/EN 300 253. This European Standard does not apply to power supply distribution of voltages over AC 1 000 V. Electromagnetic compatibility (EMC) requirements and safety requirements for power supply installation are outside the scope of this European Standard and are covered by other standards and regulations. However, information given in this European Standard may be of assistance in meeting the requirements of these standards and regulations.

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EN ISO 11117:2019/prA1 Viešoji apklausa

Komentavimo iki data 2026-03-19

Dujų balionai. Čiaupų apsauginiai gaubtai ir apsaugai. Projektavimas, konstravimas ir bandymai. 1 keitinys (ISO 11117:2019/DAM 1:2026)

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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 63409-5:2026 Viešoji apklausa

Komentavimo iki data 2026-04-01

Fotovoltinių elektros energijos gamybos sistemų ryšys su tinklu. Galios keitimo įrangos bandymas. 5 dalis. Elektromegnetinis suderinamumas esant laidininkais sklindantiems žemojo dažnio trikdžiams

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prEN IEC 60704-2-7:2026 Viešoji apklausa

Komentavimo iki data 2026-05-01

Buitiniai ir panašios paskirties elektriniai prietaisai. Ore sklindančio akustinio triukšmo nustatymo taisyklės. 2-7 dalis. Ypatingieji reikalavimai, keliami ventiliatoriams

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prEN 17757 Viešoji apklausa

Komentavimo iki data 2026-04-21

Neorganinės trąšos. Tam tikrų maisto medžiagų nustatymas

This document specifies references to methods for the determination of the content of the following specific nutrients in inorganic fertilizers: — the total nitrogen content; — the ammoniacal nitrogen content; — the nitric nitrogen content; — the urea nitrogen content; — the content of nitrogen from isobutylidenediurea (IBDU) and crotonylidenediurea (CDU); — the cyanamide nitrogen content; — the methylene-urea nitrogen content (and urea formaldehyde, if applicable); — the total phosphorus content; — the water-soluble phosphorus content; — the neutral ammonium citrate soluble phosphorus content; — the formic acid soluble phosphorus content; — the total potassium content; — the water-soluble potassium content; — the total magnesium content; — the water-soluble magnesium content; — the total calcium content; — the water-soluble calcium content; — the total sulfur content; — the water-soluble sulfur content; — the total sodium content; — the water-soluble sodium content. This document is applicable to 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: inorganic fertilizers is the highest % in the blend by mass or volume, or in the case of liquid form by dry mass. If inorganic 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.

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prEN 10160 Viešoji apklausa

Komentavimo iki data 2026-03-17

Neardomieji bandymai. 5 mm arba storesnių plokščių plieno gaminių ultragarsinis bandymas (atspindžio metodas)

This document describes a method for the ultrasonic testing of uncoated flat steel product for internal discontinuities. This document is applicable to flat product in nominal thickness range of 5 mm to 200 mm of non-alloyed or alloyed steel, excluding austenitic or austenoferritic steels. However, this document can be applied to the latter types of steels provided that the difference between the amplitude of the noise signal and that of the echo detection threshold is sufficient for the limit fixed. This document also defines five quality classes for the flat product body (classes S0, S1, SA, S2 and S3) and five classes (E0, E1, E2, E3, E4) for the edges (see Clause 13). Other methods of testing (e.g. by phased-array) or other test equipment may be used at the manufacturer's discretion provided that they give identical results to those obtained under the conditions of this document. In the event of a dispute, only the method defined in this document shall prevail. Testing of flat product of thickness less than 5 mm or higher than 200 mm may be the subject of special agreements between the parties concerned. The inspection is normally carried out in the place of production or on the premises of the supplier. If specified on the order, the inspection takes place in the presence of the purchaser or his representative1. A list of equivalent terms in several European languages is given in Annex A.

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prEN IEC/IEEE 62395-2:2026 Viešoji apklausa

Komentavimo iki data 2026-03-20

Pramoninės ir komercinės paskirties elektrinės varžinės vamzdynų šildymo sistemos. 2 dalis. Sistemos projektavimo, įrengimo ir techninės priežiūros vadovas

IEC/IEEE 62395-2:2024 provides detailed recommendations for the system design, installation, maintenance and repair of electrical resistance trace heating systems in industrial and commercial applications. This document does not include or provide for any applications in potentially explosive atmospheres. This standard cancels and replaces IEC 62395-2:2013. This edition constitutes a technical revision. This standard includes the following significant technical changes with respect to IEC 62395-2:2013: a) Design considerations for trace heating on sprinkler systems have been expanded and a figure has been added to illustrate how to avoid undue shadowing of spray patterns from insulated sprigs close to sprinkler heads; b) Specific details of design considerations for trace heating for emergency eyewash units and safety showers have been added.

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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 61850-7-440:2026 Viešoji apklausa

Komentavimo iki data 2026-04-22

Elektros tiekimo sistemų automatizavimo ryšių tinklai ir sistemos. 7-440 dalis. Pagrindinė ryšių struktūra. Suderinamos loginių mazgų ir duomenų objektų klasės. Elektros energijos kokybinių charakteristikų matavimas

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prEN 14056-5 Viešoji apklausa

Komentavimo iki data 2026-04-07

Laboratoriniai baldai. Projektavimo ir įrengimo rekomendacijos. 5 dalis. Inžinerinių tinklų jungčių blokai

This document is applicable to biology, chemistry and physics laboratories where research, preparative, analytical, process activities take place and which can involve work with hazardous substances, including higher education (college and university teaching and post-graduate research). This document does not cover the requirements of schools, i.e. precollege/pre-university (refer to EN 13150), or highly specialist laboratories which need very specific, bespoke solutions to enable them to function. This document specifies requirements for various types of services distribution carriers typically used in combination with laboratory bench types as covered in the EN 14056 series. This document gives guidelines for all parties involved in the planning, design, manufacture, installation, testing of a new laboratory or in the refurbishment of an existing laboratory.

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prEN IEC 62133-2:2026 Viešoji apklausa

Komentavimo iki data 2026-05-08

Akumuliatoriai ir baterijos su šarminiais arba kitokiais nerūgštiniais elektrolitais. Saugos reikalavimai, keliami nešiojamiesiems sandariesiems akumuliatoriams ir iš jų sudarytoms baterijoms, naudojamiems nešiojamuosiuose aparatuose. 2 dalis. Ličio sistemos

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prEN IEC 61300-2-58:2026 Viešoji apklausa

Komentavimo iki data 2026-03-18

Skaiduliniai optiniai sujungimo įtaisai ir pasyvieji komponentai. Pagrindinės bandymo ir matavimo procedūros. 2-58 dalis. Bandymai. Atsparumo panardinus į aušalą bandymas

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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 3874 Viešoji apklausa

Komentavimo iki data 2026-04-14

Aerospace series - Test methods for metallic materials - Constant-amplitude force-controlled low-cycle fatigue testing

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prEN IEC 61850-7-43:2026 Viešoji apklausa

Komentavimo iki data 2026-04-22

Elektros tiekimo sistemų automatizavimo ryšių tinklai ir sistemos. 7-43 dalis. Pagrindinė ryšių struktūra. Suderinamos loginių mazgų ir duomenų objektų klasės. Pagrindinė įranga

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prEN ISO 3924 Viešoji apklausa

Komentavimo iki data 2026-05-07

Naftos produktai. Distiliacijos temperatūrų intervalų pasiskirstymo nustatymas. Dujų chromatografijos metodas (ISO/DIS 3924:2026)

This document specifies a method for the determination of the boiling range distribution of petroleum products. The method is applicable to petroleum products and fractions with a final boiling point of 538 °C or lower at atmospheric pressure as determined by this document. This document does not apply to gasoline samples or gasoline components. The method is limited to products having a boiling range greater than 55 °C and having a vapour pressure sufficiently low to permit sampling at ambient temperature. The document describes two procedures. a) Procedure A allows a larger selection of columns and analysis conditions, such as packed and capillary columns as well as a thermal conductivity detector in addition to the flame ionization detector. Analysis times range from 14 min to 60 min. b) Procedure B is restricted to only three capillary columns and requires no sample dilution. The analysis time is reduced to about 8 min. Both procedures have been successfully applied to samples containing fatty acid methyl esters (FAME) up to 20 % (volume fraction). NOTE For the purposes of this document, the terms "% (mass fraction)" and "% (volume fraction)" are used to represent the mass fraction (µ), the volume fraction (φ) of a material.

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