Standartų projektų sąrašas

prEN ISO 3630-8 Viešoji apklausa

Komentavimo iki data 2025-06-24

Odontologija. Endodontiniai instrumentai. 8 dalis. Elektroninio danties šaknies viršūnės nustatymo įtaiso tikslumas (ISO/DIS 3630-8:2025)

This part of ISO 3630 specifies requirements and test methods for the accuracy of electronic apex locators that are used to determine the apical foramen (‘apex’ in this document) location during endodontic treatment. Integrated types of electronic apex locators are excluded from this standard.

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prEN 16150 Viešoji apklausa

Komentavimo iki data 2025-06-24

Vandens kokybė. Nurodymai, kaip imti bentosinių stambiųjų bestuburių ėminius iš upėse ir upeliuose esančių buveinių proporcingai pagal jų dydį

This document gives guidance on procedures for the pro-rata multi-habitat sampling of benthic macroinvertebrates in rivers and streams. The term “pro-rata” reflects the intention to sample all the main riverine habitats present at a monitoring site according to the proportion of the site that it covers. It is an objective way to divide sampling effort among the different habitats. This guidance is applicable to all flowing waters, both artificial, modified and natural. This design enables comparable samples to be collected from any type of river, regardless of the habitats present. The pro-rata multi-habitat sampling is an overall approach rather than a specific method. This document is designed to: — support environmental and conservation agencies to meet the monitoring requirements of the WFD (Article 8, Annex II, and Annex V); — generate data sets appropriate for monitoring and reporting of sites designated under the Habitats Directive and the Birds Directive ensure that samples for comparing the overall composition of invertebrates from different stream types are comparable; — ensure samples for environmental quality assessments across different stream types are comparable even when sampled by different people; and — support river management and restoration initiatives. The pro-rata multi-habitat sample (MHS) provides: — a consistent way of sampling sites that is not dependent on the presence of particular types of habitat; and — guidance on a user-friendly strategy for collecting biological data depending on the distribution of substrate type. It is also ideal for: — understanding the distribution of biological community types across different physical river types; and — quality assessments based on deviation from reference, as adopted in the European Water Framework Directive.

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prEN 12831-1 Viešoji apklausa

Komentavimo iki data 2025-06-24

Energinės pastatų charakteristikos. Projektinės šiluminės apkrovos skaičiavimo metodas. 1 dalis. Patalpų šildymo apkrova. M3-3 modulis

This European Standard covers methods for the calculation of the design heat load for single rooms, building entities and buildings, where the design heat load is defined as the heat supply (power) needed to maintain the required internal design temperature under design external conditions. Table 1 shows the relative position of this standard within the set of EPB standards in the context of the modular structure as set out in EN ISO 52000 -1. NOTE 1 In CEN ISO/TR 52000 2 the same table can be found, with, for each module, the numbers of the relevant EPB standards and accompanying technical reports that are published or in preparation. NOTE 2 The modules represent EPB standards, although one EPB standard may cover more than one module and one module may be covered by more than one EPB standard, for instance a simplified and a detailed method respectively. See also Clause 2 and Tables A.1 and B.1. (...)

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prEN 16647-2 Viešoji apklausa

Komentavimo iki data 2025-06-24

Be dūmtakių veikiantys etanolio židiniai. Saugos reikalavimai ir bandymo metodai. 2 dalis. Automatiškai valdomi buitiniai dekoratyviniai židiniai

This document applies to decorative, automatically controlled fireplaces for domestic use, producing a flame using liquid alcohol, hereafter referred to as fuel, for decoration. NOTE 1 The requirements outlined in this document can be applied even outside domestic settings. In that case additional or different rules on the use of the fireplaces may apply. This document applies to decorative fireplaces that do not require manual user interaction during normal operation. These fireplaces include electric or electronic components that control the basic operation (incl. automatic filling system). NOTE 2 These components control the safe operation and avoid hazards such as: - Fuel spillage while filling - Overfilling - Fuel explosion while igniting - Accidental ignition while refilling - Overheating - Unsuccessful extinguishing The document applies only to fireplaces for use in indoor areas. This document applies to free-standing, wall-mounted and built-in fireplaces. This document applies to fireplaces ready for use, whose burner is an integral component of the fireplace. This document does not apply to fireplaces specifically designed for heating food or keeping food warm (rechauds), as well as to fireplaces for use in boats, caravans, other. This document does not apply to fireplaces with declared heating function. This document does not apply to fireplaces, that are connected to a flue. NOTE 3 Because of the safety component of automatically operated fireplaces this scope is not limited to a specific heat output or fuel consumption. National legislation, however, might restrict the heat output.

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prEN 16129 Viešoji apklausa

Komentavimo iki data 2025-06-19

Butano, propano ir jų mišinių slėgio reguliatoriai, automatiniai perjungimo įtaisai, kuriems būdingas didžiausiasis reguliuojamas 4 barų slėgis ir didžiausiasis 150 kg/h srautas, susiję saugos įtaisai ir siejikliai

This document specifies the design and operational characteristics, the safety requirements, test methods and the marking of regulators and automatic change-over devices having a maximum regulated pressure of 4 bar, with a maximum capacity of 150 kg/h, for use with butane, propane and their mixtures in the vapour phase. The maximum supply pressures for devices covered by this standard are 7,5 bar for butane and 16 bar for propane and LPG. This document also applies to the safety devices which are included within regulating devices covered by this document. This document also includes requirements for: - adaptors for connecting to self-closing valves; - integral or auxiliary safety devices. This document covers devices used in locations where the temperature likely to be reached during use is between −20 °C and +50 °C Additional requirements for devices to be used at temperatures down to −30 °C and/or up to +80 °C are defined in Annex C. This document gives special requirements for: - devices intended to be used in caravans and motor caravans (Annex D); - devices intended to be used in boats (Annex M); - specific connections which are not defined in other standards (e.g. EN 15202:2019 for cylinder valve connections). NOTE Boats considered in this document are recreational crafts covered by European Directive 2013/53/EU.

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prEN 12312-20 Viešoji apklausa

Komentavimo iki data 2025-06-19

Orlaivių pagalbinė antžeminė įranga. Ypatingieji reikalavimai. 20 dalis. Antžeminiai elektros maitinimo įrenginiai

This European Standard specifies the technical requirements to minimise the hazards listed in Clause 4 which can arise during the commissioning, operation and maintenance of ground power equipment, when carried out in accordance with the specifications given by the manufacturer or his authorised representative. It also takes into account some performance requirements recognised as essential by authorities, aircraft and ground support equipment (GSE) manufacturers as well as airlines and service companies. This European Standard applies to: - ground power units either self-propelled or towable (Examples see Annex A); - ground power equipment when mounted on other GSE; - ground power accessories intended for ground power equipment (including accessories for fixed equipment). This European Standard does not apply to: - the electrical characteristics of the supply, the type of power supply system and related measures against contact; - any electrical supply system not intended for aircraft use; - the on-board electrical system of the aircraft. This European Standard does not establish requirements for noise and vibration. Noise and vibration are dealt with respectively in EN 1915 4 and EN 1915 3. This European Standard does not deal with hazards in respect to a standard automotive chassis and from other vehicles on the apron. This Part of EN 12312 is not applicable to ground power equipment which is manufactured before the date of publication of this European Standard by CEN. This part of EN 12312 is intended to be used in conjunction with EN 1915-1, EN 1915-2, EN 1915-3 (for vehicles) and EN 1915-4.

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EN 549:2019+A2:2024/prA3 Viešoji apklausa

Komentavimo iki data 2025-06-19

Dujinių prietaisų ir dujinės įrangos sandariklių ir diafragmų guma

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prEN 13135 Viešoji apklausa

Komentavimo iki data 2025-06-19

Kranai. Sauga. Projektavimas. Įrangos reikalavimai

This document specifies requirements for the design and selection of electrical, mechanical, hydraulic and pneumatic equipment used in all types of cranes and their associated fixed load lifting attachments with the objectives of protecting personnel from hazards affecting their health and safety and of ensuring reliability of function. NOTE Specific requirements for particular types of cranes, and for load lifting attachments, are given in the appropriate European Standard. The electrical equipment covered by this document commences at the point of connection of the supply to the crane (the crane supply switch) including systems for power supply and control feeders situated outside the crane, e.g. flexible cables, conductor wires or bars, electric motors and cableless controls. The principles to be applied for cranes transporting hazardous loads are given in this document. Particular requirements are given for cranes transporting hot molten metal. This document does not cover the detail design of individual items of equipment except with regard to their selection for specific aspects of use. The proof of competence calculations and related strength requirements or safety margins of equipment and components are not covered by this document. NOTE Some safety margins are given here for issues not covered in the EN 13001 series. Hazards due to noise are not covered by this document. They are addressed in safety standards specific to each type of crane. The specific hazards due to potentially explosive atmospheres, ionising radiation, and operation in electromagnetic fields beyond the range of EN 61000-6-2 are not covered by this document. The significant hazards covered by this document are identified in Annex A. This document is not applicable to cranes manufactured before the date of its publication.

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prEN 17964 Viešoji apklausa

Komentavimo iki data 2025-06-19

Neaukštos judamosios darbinės platformos. Medžiagos, matmenys, projektinės apkrovos, sauga ir eksploatacinių charakteristikų reikalavimai

This document specifies the requirements for dimensions, safety and performance of mobile working platforms made of prefabricated elements used as low height and low load capacity temporary work equipment. This document applies to the design of mobile working platforms: − with wheels; − for assembly by one person; − for use by one or more persons; − with no more than one platform level; − made of prefabricated elements with dimensions which are fixed by the design; − with a platform height limited to 2,0 m; − with minimum platform dimensions of 0,5 m x 1,0 m and maximum − platform dimensions of 2,0 m x 3,5 m; − used indoors or outdoors. This document does not apply to: − scaffolds according to EN 12810-1 and EN 12811-1; − mobile access towers according to EN 1004-1; − mobile ladders with platform according to EN 131-7; − ladders with separate platform according to EN 131-8; − where different load assumptions and verification methods are applied.

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prEN IEC 62446-1:2025 Viešoji apklausa

Komentavimo iki data 2025-06-18

Fotovoltinės sistemos. Reikalavimai, keliami bandymui, dokumentams ir techninei priežiūrai. 1 dalis. Prie tinklo jungiamos sistemos. Dokumentai, perdavimo eksploatuoti bandymai ir tikrinimas

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prEN IEC 63517:2025 Viešoji apklausa

Komentavimo iki data 2025-06-18

Dėvimoji elektroninė tekstilė. Šildančiųjų gaminių eksploatacinių charakteristikų bandymo metodai. Šildymo temperatūra ir energijos suvartojimas

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prEN IEC/ASTM 63470:2025 Viešoji apklausa

Komentavimo iki data 2025-06-18

Siurbiamieji garų šalintuvai. Surinkimo efektyvumo matavimo metodai

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prEN IEC 63041-2:2025 Viešoji apklausa

Komentavimo iki data 2025-06-18

Pjezoelektriniai jutikliai. 2 dalis. Cheminiai ir biocheminiai jutikliai

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prHD 60364-7-751:2025 Viešoji apklausa

Komentavimo iki data 2025-06-18

Žemosios įtampos elektriniai įrenginiai. 7-751 dalis. Reikalavimai, keliami specialiesiems įrenginiams arba specialiosioms jų buvimo vietoms. Žemosios įtampos generatoriniai agregatai

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prEN IEC 61094-9:2025 Viešoji apklausa

Komentavimo iki data 2025-06-18

Elektroakustika. Matavimo mikrofonai. 9 dalis. Perduodančiųjų etaloninių mikrofonų specifikacijos

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prEN IEC 62475:2025 Viešoji apklausa

Komentavimo iki data 2025-06-18

Bandymo stipriąja srove būdai. Bandymo srovių ir matavimo sistemų apibrėžtys ir reikalavimai

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prEN 18183 Viešoji apklausa