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Viso rasta įrašų: 235

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prEN IEC 60079-10-2:2025 Viešoji apklausa

Komentavimo iki data 2025-05-09

Sprogiosios atmosferos. 10-2 dalis. Zonų klasifikavimas. Sprogiosios dulkių atmosferos

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prEN IEC 60794-3-11:2025 Viešoji apklausa

Komentavimo iki data 2025-05-09

Optiniai skaiduliniai kabeliai. 3-11 dalis. Lauko kabeliai. Kanalinių, užkasamųjų ir kabamųjų orinių vienmodžių optinių ryšio kabelių techniniai gaminio reikalavimai

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prEN ISO 11295 Viešoji apklausa

Komentavimo iki data 2025-05-08

Vamzdynų atnaujinimui naudojamos plastikinių vamzdžių sistemos. Strateginių, taktinių ir eksploatacinių veiksmų klasifikavimas ir apžvalga (ISO/DIS 11295:2025)

This document specifies the steps of the overall process of pipeline rehabilitation, comprising: — information on strategic and tactical activities: a) investigation and condition assessment of the existing pipeline; b) pipeline rehabilitation planning. — information on and requirements for operational activities: c) project specification; d) applications of techniques; e) documentation of the design and application process. Definitions and classification of families of renovation and trenchless replacement techniques are provided, and their respective features described. Areas of application covered include underground drainage and sewerage networks and underground water and gas supply networks. The following aspects are not covered by the scope of this document: — new construction provided as network extensions; — calculation methods to determine, for each viable technique, the characteristics of lining or replacement pipe material needed to secure the desired performance of the rehabilitated pipeline; — techniques providing non-structural pressure pipe liners; — techniques for local repair. It is the responsibility of the designer to choose and design the renovation or trenchless replacement pipeline system.

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prEN IEC 60947-5-5:2025 Viešoji apklausa

Komentavimo iki data 2025-05-07

Žemosios įtampos perjungimo ir valdymo įrenginiai. 5-5 dalis. Valdymo grandinių įtaisai ir perjungimo elementai. Mechaniškai blokuojami elektriniai avarinio stabdymo įtaisai

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prEN IEC 63522-3:2025 Viešoji apklausa

Komentavimo iki data 2025-05-07

Elektrinės relės. Bandymai ir matavimai. 3 dalis. Relių ričių savybės

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prEN IEC 61540:2025/prAA:2025 Viešoji apklausa

Komentavimo iki data 2025-05-07

Buitiniai ir panašios paskirties nešiojamieji liekamosios srovės įtaisai (PRCD) be vidinės apsaugos nuo viršsrovių

This document applies to portable residual current devices (PRCDs) for household and similar uses, consisting of a plug, a residual current device (RCD) and one or more socket-outlets or a provision for connection. They do not incorporate overcurrent protection. They are intended for single- and two-phase systems for rated currents not exceeding 16 A for rated voltages not exceeding 250 V AC. They are intended to provide protection against shock hazard in case of direct contact, in addition to the protection provided by the fixed installations for the circuit downstream. PRCDs have a rated residual operating current not exceeding 0,03 A. The plug and socket-outlet parts of a PRCD are covered by the national standard of the country where the PRCD is placed on the market. This document applies to portable devices 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. PRCDs providing an additional function of detecting faults on the supply side with a defined behaviour in case of supply failures or miswiring (PRCD-S) are also covered by this document. PRCDs are not intended to be used as parts of fixed installations. Their connecting means can be plugs, socket-outlets, terminals or cords. NOTE 1 The requirements for PRCDs are in compliance with the general requirements of IEC 60755. PRCDs are essentially intended to be operated by ordinary persons and designed not to require maintenance. NOTE 2 An integral fuse is used, if necessary, for the relevant plug and socket-outlet system. The switching contacts of the PRCDs are not intended to provide isolation, as isolation can be ensured by disconnecting the plug. The requirements of this document apply for environmental conditions as defined in 7.1. Additional requirements can be necessary for PRCDs used in locations having more severe environmental conditions. PRCDs including batteries are not covered by this document. This document does not contain additional requirements for PRCDs without earthing contacts for which specific requirements can apply. This document can, however, be used as a guide for such devices which are intended to be used with Class II appliances only.

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prEN IEC 61540:2025 Viešoji apklausa

Komentavimo iki data 2025-05-07

Buitiniai ir panašios paskirties nešiojamieji liekamosios srovės įtaisai be vidinės apsaugos nuo viršsrovių

This document applies to portable residual current devices (PRCDs) for household and similar uses, consisting of a plug, a residual current device (RCD) and one or more socket-outlets or a provision for connection. They do not incorporate overcurrent protection. They are intended for single- and two-phase systems for rated currents not exceeding 16 A for rated voltages not exceeding 250 V AC, or for rated current not exceeding 32 A for rated voltages not exceeding 130 V AC to earth. They are intended to provide protection against shock hazard in case of direct contact, in addition to the protection provided by the fixed installations for the circuit downstream. PRCDs have a rated residual operating current not exceeding 0,03 A. The plug and socket-outlet parts of a PRCD are covered by the national standard of the country where the PRCD is placed on the market. If no national requirements exist, IEC 60884 1 is used. This document applies to portable devices 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. PRCDs providing an additional function of detecting faults on the supply side with a defined behaviour in case of supply failures or miswiring (PRCD-S) are also covered by this document. PRCDs are not intended to be used as parts of fixed installations. Their connecting means can be plugs, socket-outlets, terminals or cords. NOTE 1 The requirements for PRCDs are in compliance with the general requirements of IEC 60755. PRCDs are essentially intended to be operated by ordinary persons and designed not to require maintenance. NOTE 2 An integral fuse is used, if necessary, for the relevant plug and socket-outlet system. The switching contacts of the PRCDs are not intended to provide isolation, as isolation can be ensured by disconnecting the plug. The requirements of this document apply for environmental conditions as defined in 7.1. Additional requirements can be necessary for PRCDs used in locations having more severe environmental conditions. PRCDs including batteries are not covered by this document. This document does not contain additional requirements for PRCDs without earthing contacts for which specific requirements can apply. This document can, however, be used as a guide for such devices which are intended to be used with Class II appliances only.

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prEN IEC 63616:2025 Viešoji apklausa

Komentavimo iki data 2025-05-07

Metalinių plonųjų sluoksnių savitojo laidžio matavimas naudojant mikrobangų ir milimetrinių bangų dažniais veikiantį balansinį apskritąjį diskinį rezonatorių

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prEN IEC 61169-64:2025 Viešoji apklausa

Komentavimo iki data 2025-05-07

Radijo dažnių jungtys. 64 dalis. Atskiroji specifikacija. Bendraašės radijo dažnių jungtys, kurių išorinių laidininkų vidinis skersmuo 0,8 mm. Būdingoji pilnutinė varža 50 Ω (0,8 tipas)

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prEN 18165 Viešoji apklausa

Komentavimo iki data 2025-05-06

Elektroninės cigaretės ir joms skirti skysčiai. Vaikų saugos reikalavimai ir bandymo metodai

This document specifies child resistance mechanisms and tests methods for assuring child safety within electronic cigarettes and refill containers. NOTE Attention is drawn to the definitions laid down in EU Directive 2014/40/EU Tobacco Product Directive. This document is applicable for electronic cigarettes and refill containers which are containing or intended to contain nicotine. This document does not apply to tamper resistance nor general product safety requirements which are not specific to child safety.

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prEN ISO 14720-2 Viešoji apklausa

Komentavimo iki data 2025-05-06

Keraminių medžiagų tyrimai. Sieros kiekio nustatymas neoksidinėse keramikos žaliavose ir keraminėse medžiagose. 2 dalis. Induktyviai susietos plazmos optinė emisinė spektrometrija arba jonų chromatografija sudeginus deguonies sraute (ISO/DIS 14720-2:2025)

This part of ISO 14720 defines a method for the determination of sulfur in powdered and granular non-oxidic ceramic raw materials and materials, which are completely oxidized at a higher temperature in an oxygen atmosphere, e.g. carbon and graphite materials. For materials which are not completely oxidizable under these conditions, it is possible to determine sulfur that can be released under these conditions, e.g. the adherent sulfur. This part of ISO 14720 is applicable for materials with mass fractions of sulfur ≤ 10 % and mass fractions of ash < 20 %, The defined method is limited for materials with mass fractions of barium < 10 mg/kg, because the sulfur bonded in barium sulfate is not detectable with this method. For the lower detection limit of this method, a mass fraction of sulfur of 0,5 mg/kg in the case of inductively coupled plasma optical emission spectrometry (ICP/OES) and 5 mg/kg in the case of ion chromatography (IC) has to be considered as a recommended value.

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prEN 18166 Viešoji apklausa

Komentavimo iki data 2025-05-06

Hyperloop sistemos. Bendrieji reikalavimai

This document provides a general view of the most relevant requirements to ensure safety, reliability, system automation, security, comfort, interoperability and operations of the hyperloop system used for the transport of passengers and goods. This document will be the basis to set the general common requirements for the hyperloop system as a whole.

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prEN ISO 2507 Viešoji apklausa

Komentavimo iki data 2025-05-06

Termoplastikiniai vamzdžiai ir jungiamosios detalės. Vicat minkštėjimo temperatūra. Polivinilchlorido (PVC-U, PVC-C, PVC-Hi) ir akrilnitrilo (ABS, ASA) vamzdžių bei jungiamųjų detalių bendrasis bandymo metodas ir bandymo sąlygos (ISO/DIS 2507:2025)

The method specified is based on determining the temperature at which a standard indenter, under a force of 50 N ± 1 N, penetrates 1 mm into the surface of a test piece cut from the wall of a pipe or fitting while the temperature is raised at a constant rate. Is applicable only to thermoplastics materials for which it is possible to measure the temperature at which the rate of softening becomes rapid. Is based on ISO 306:1994 which, however, applies to materials in the form of sheets.

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EN ISO 7551:2023/prA1 Viešoji apklausa

Komentavimo iki data 2025-05-06

Odontologija. Endodontiniai absorbciniai kaiščiai. 1 keitinys (ISO 7551:2023/DAM 1:2025)

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EN IEC 60721-3-3:2019/prA1:2025 Viešoji apklausa

Komentavimo iki data 2025-05-02

Aplinkos sąlygų klasifikavimas. 3-3 dalis. Aplinkos parametrų ir jų stiprumo grupių klasifikavimas. Stacionarus naudojimas apsaugotose nuo atmosferos poveikio vietose. 1 keitinys

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prEN IEC 62849:2025 Viešoji apklausa

Komentavimo iki data 2025-05-02

Judančiųjų buitinių robotų eksploatacinių charakteristikų įvertinimo metodai

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prEN ISO 15015 Viešoji apklausa

Komentavimo iki data 2025-05-01

Plastikai. Ekstruziniai smūgiui atsparių akrilnitrilo ir stireno kopolimerų (ABS, AEPDS ir ASA) lakštai. Reikalavimai ir bandymo metodai (ISO/DIS 15015:2025)

ISO 15015:2011 specifies the requirements and test methods for solid flat extruded sheets of impact-modified acrylonitrile-styrene copolymer materials: acrylonitrile-butadiene-styrene (ABS), acrylonitrile-(ethylene-propylene-diene)-styrene (AEPDS) (commonly known as AES) and acrylonitrile-styrene-acrylate (ASA), without fillers or reinforcing materials. This International Standard also applies to ABS, AEPDS and ASA sheet in rolled form. It applies only to thicknesses from 0,25 mm to 20,0 mm.

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EN ISO 12312-1:2022/prA1 Viešoji apklausa

Komentavimo iki data 2025-05-01

Akių ir veido apsauga. Saulės ir kitokie akiniai. 1 dalis. Bendrosios paskirties saulės akiniai. 1 keitinys (ISO 12312-1:2022/DAM 1:2025)

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prEN ISO 80079-38 Viešoji apklausa

Komentavimo iki data 2025-05-01

Sprogiosios atmosferos. 38 dalis. Įranga ir komponentai, naudojami sprogiosiose požeminių kasinių atmosferose (ISO/IEC DIS 80079-38:2025)

ISO/IEC 80079-38:2016 is published as a dual logo standard and specifies the explosion protection requirements for the design, construction, assessment and information for use (maintenance, repair, marking) of equipment that may be an individual item or form an assembly. This includes machinery and components for use in mines susceptible to explosive atmospheres of firedamp and/or combustible dust. The standard atmospheric conditions (relating to the explosion characteristics of the atmosphere) under which it may be assumed that equipment can be operated are: - temperature -20 °C to 60 °C; - pressure 80 kPa (0,8 bar) to 110 kPa (1,1 bar); - and air with normal oxygen content, typically 21 % v/v. This part of ISO/IEC 80079 applies for equipment and components according to EPL Mb to be used in explosive atmospheres containing firedamp and/or combustible dust. For equipment and components according to EPL Ma, the requirements of this standard and of ISO 80079-36 and IEC 60079-0 apply. It is necessary to take account of external conditions to the equipment which may affect the hazard and the resultant protection measures. These measures may include ventilation, gas detection or gas drainage. This part of ISO/IEC 80079 also deals with the prevention of ignitions of explosive atmospheres caused by burning (or smouldering) of combustible material such as fabric fibres, plastic "O"-rings, rubber seals, lubricating oils or greases used in the construction of the equipment if such items could be an ignition source. For example, the mechanical failure of rotating shaft bearings can result in frictional heating that ignites its plastic cage, plastic seal or lubricating grease. Detailed requirements and test procedures for the fire protection of conveyer belts are not part of this part of ISO/IEC 80079. Keywords: explosive atmospheres in underground mines, combustible dust

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prEN IEC 60794-1-127:2025 Viešoji apklausa

Komentavimo iki data 2025-04-30

Optiniai skaiduliniai kabeliai. 1-127 dalis. Bendroji specifikacija. Pagrindinės optinių kabelių bandymo procedūros. Mechaninių bandymų metodai. Imituojamo įrengimo patalpose bandymas, E27 metodas

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ISO/IEC 18033-2:2006/DAmd 2 Viešoji apklausa

Komentavimo iki data 2025-05-03

Informacinės technologijos. Saugumo metodai. Šifravimo algoritmai. 2 dalis. Asimetriniai šifrai. 2 keitinys

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prEN 18167 Viešoji apklausa

Komentavimo iki data 2025-04-29

Medicininio vizualizavimo, teikiant radiologijos paslaugas paciento gydymo proceso metu, kokybė

This document specifies the requirements for implementation of a quality system along the patient pathway in Radiology services. The objective is to ensure high quality delivery of all aspects of the examination safety and patient care. This document deals with procedures using X-rays, ultrasonography and magnetic resonance imaging on humans, including diagnostic procedures and interventional Radiology as well as remote practices. It also applies, in its principles, to any other technique and modality that would be used in Radiology services. The document covers: - the different steps of patient care (from the imaging referral, before, during, and after the examination); - the corresponding human resources and technical-medical requirements; - quality and risk management. This document does not apply to radiotherapy and nuclear medicine, nor to equipment and radiation controls which are covered in other standards. This document excludes requirements related to research and education themes. This document establishes best practices description which constitutes a reference for audits, including clinical audits. Nevertheless, the clinical audits methodology, already defined at the European level, and implemented under the responsibility of each country is excluded from the document.

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prEN 3-11 Viešoji apklausa

Komentavimo iki data 2025-04-29

Nešiojamieji gesintuvai. 11 dalis. EN 3-7 aprašomų gesintuvų, tinkamų ličio jonų baterijoms, eksploatacinės charakteristikos, reikalavimai, bandymo metodai ir ženklinimas

This document describes performance requirements for portable fire extinguishers in addition to the requirements of EN 3-7+A1:2007, to demonstrate their suitability for extinguishing fires in rechargeable and non-rechargeable batteries based on lithium ion chemistry with a limited capacity, as used in: - portable electronic equipment (smartphones, laptops); - power tools and domestic appliances; - portable medical equipment; - toys and radio-controlled objects; - drones; - bicycles. This document contains general requirements and procedures for extinguishing tests. The size of the extinguishing tests is comparable to the battery capacities in the abovementioned applications. Suitability for extinguishing larger fire risks, such as vehicle batteries and battery sets of stationary energy storage systems, cannot be validated with this document.

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prEN 12390-20 Viešoji apklausa

Komentavimo iki data 2025-04-29

Sukietėjusio betono bandymai. 20 dalis. Poringumo nustatymas

This document describes the method for the determination of the porosity (open pores) of hardened concrete on test specimens of any type (moulded, sawn, cored) or any shape. The test is suitable for specimens having a declared value of D of the coarsest fraction of aggregates actually used in the concrete (Dmax) not greater than 40 mm. The test method is not applicable for concrete containing lightweight aggregate.

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prEN 12350-13 Viešoji apklausa

Komentavimo iki data 2025-04-29

Betono mišinio bandymai. 13 dalis. Vandens atsiskyrimo bandymas. Statinis atsiskyrimas ir atsiskyrimas veikiant slėgiui

This document specifies the procedures for determining the static and pressure bleed of fresh concrete. The tests are suitable for specimens having a declared value of the coarsest fraction of aggregates actually used in the concrete (Dmax) not greater than 40 mm. It can be carried out in the laboratory or on site.

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