Standartų projektų sąrašas

prEN IEC 61000-4-29:2026 Viešoji apklausa

Komentavimo iki data 2026-04-01

Elektromagnetinis suderinamumas (EMS). 4-29 dalis. Bandymų ir matavimo priemonės. Nuolatinės srovės maitinimo įėjimo prieigos atsparumo įtampos kryčiams, trumpiesiems pertrūkiams ir kitimams bandymai

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prEN 301 406-1 V3.2.0 (2026-01) Viešoji apklausa

Komentavimo iki data 2026-03-22

Skaitmeninis patobulintas belaidis nuotolinis ryšys (DECT). Prieigos prie radijo ryšio spektro darnusis standartas. 1 dalis. DECT, DECT Evolution ir DECT ULE

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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 3523 Viešoji apklausa

Komentavimo iki data 2026-04-14

Aerospace series - Steel 15CrMoV6 (1.7334) - Air melted - Hardened and tempered - Bars for machining - De ≤ 100 mm - 1 080 MPa ≤ Rm ≤ 1 280 MPas

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prEN IEC 63378-4:2026 Viešoji apklausa

Komentavimo iki data 2026-04-22

Puslaidininkinių įtaisų korpusų šiluminių charakteristikų standartizavimas. 4 dalis. Mažo žingsnio puslaidininkinių įtaisų korpusų šiluminio įvertinimo plokštės specifikacija

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prEN 13408 Viešoji apklausa

Komentavimo iki data 2026-04-28

Klijai. Cementinių ir kalcio sulfato grindų išlyginimo mišinių bandymo metodas. Sukibimo stiprio nustatymas

This document specifies a test method for the determination of bond strength between an underlayment produced with cementitious or calciumsulfate-based floor levelling compounds and a standard substrate. This document applies to cementitious, and calcium sulphate-based floor levelling compounds used for the preparation of subfloors to ensure the suitability of the substrate prior to the installation of floor coverings. By using the floor levelling compound, a homogeneous layer is built up on the load-bearing substrate, to ensure consistent absorbency, evenness and strength.

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EN ISO 4135:2022/prA1 Viešoji apklausa

Komentavimo iki data 2026-04-14

Anestezijos ir kvėpavimo įranga. Aiškinamasis žodynas. 1 keitinys (ISO 4135:2022/DAM 1:2026)

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prEN ISO 14451-7 Viešoji apklausa

Komentavimo iki data 2026-03-19

Pirotechniniai gaminiai. Pirotechniniai gaminiai, skirti transporto priemonėms. 7 dalis. Saugos diržų įtempiklių reikalavimai ir skirstymas į kategorijas (ISO/DIS 14451-7:2026)

ISO 14451-7:2013 specifies the types and order of tests to be applied to the seatbelt pretensioners and sets out the associated acceptance criteria and means of categorization. ISO 14451-7:2013 applies to type tests. ISO 14451-7:2013 is not applicable to articles containing military explosives or commercial blasting agents except for black powder or flash composition.

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prEN 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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EN 50440:2015/prA2:2026 Viešoji apklausa

Komentavimo iki data 2026-04-10

Buitinių elektrinių kaupiamųjų vandens šildytuvų našumas ir bandymo metodai

This European Standard specifies methods for measuring the performance of electric storage water heaters for the production of sanitary hot water for household and similar use. The object is to state and define the principal performance characteristics of electric storage water heaters and to describe the test methods for measuring these characteristics. NOTE 1 This standard does not apply to; − storage water heaters that use electricity as a secondary source of heating the water; − storage water heaters that do not use a tank to store hot water; − electric storage water heaters that do not meet the minimum (or maximum) output performance of the smallest (or biggest) load profile, as defined in Table 4. NOTE 2 This standard does not specify performance or safety requirements. For safety requirements see EN 60335-1:2020 in conjunction with EN 60335-2-21:2023

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prEN 15199-2 Viešoji apklausa

Komentavimo iki data 2026-04-24

Naftos produktai. Distiliacijos temperatūrų intervalų pasiskirstymo nustatymas dujų chromatografijos metodu. 2 dalis. Sunkieji distiliatai ir likutinis kuras

This document specifies a method for the determination of the boiling range distribution of petroleum products by capillary gas chromatography using flame ionization detection. The document is applicable to materials having a vapour pressure low enough to permit sampling at ambient temperature, and which have a boiling range of at least 100 °C. The document is applicable to materials with initial boiling points (IBP) above 100 °C and final boiling points (FBP) above 750 °C, for example, heavy distillate fuels and residuals. The method is not applicable to bituminous samples. The test method is not applicable for the analysis of petroleum or petroleum products containing low molecular weight components (for example naphthas, reformates, gasolines) or middle distillates like Diesel and Jet fuel. Petroleum or petroleum products containing blending components, which contain hetero atoms (for example alcohols, ethers, acids, or esters) or residue, are not to be analysed by this test method. NOTE For the purposes of this document, the terms “% (m/m)” and “% (V/V)” are used to represent respectively the mass fraction and the volume fraction. WARNING — The 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 standard to establish appropriate safety and health practices and to determine the applicability of regulatory limitations prior to use.

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prEN 15957 Viešoji apklausa

Komentavimo iki data 2026-03-17

Neorganinės trąšos. Neutraliame amonio citrate tirpaus fosforo ekstrahavimas

This document specifies a method for the extraction of phosphorus soluble in neutral ammonium citrate in inorganic fertilizers.

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prEN 301 843-8 V1.0.0 (2025-12) Archyvuotas

Komentavimo iki data 2026-03-08

Jūrinės radijo ryšio įrangos ir paslaugų elektromagnetinio suderinamumo (EMS) standartas. Elektromagnetinio suderinamumo darnusis standartas. 8 dalis. Radijo švyturių ir vietos nustatymo įtaisų specialiosios sąlygos

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prEN ISO 14451-6 Viešoji apklausa

Komentavimo iki data 2026-03-19

Pirotechniniai gaminiai. Pirotechniniai gaminiai, skirti transporto priemonėms. 6 dalis. Oro pagalvių modulių reikalavimai ir skirstymas į kategorijas (ISO/DIS 14451-6:2026)

ISO 14551-6:2013 specifies the types and order of tests for application to the airbag modules and sets out the acceptance criteria and means of categorization. ISO 14551-6:2013 applies to type tests. ISO 14551-6:2013 is not applicable to articles containing military explosives or commerical blasting agents except for black powder or flash composition.

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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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prEN IEC 60793-1-50:2026 Viešoji apklausa

Komentavimo iki data 2026-04-10

Optinės skaidulos. 1-50 dalis. Matavimo metodai. Drėgnosios šilumos (nuostovioji būsena) bandymai

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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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