Standartų projektų sąrašas

prEN ISO 9613-2 Viešoji apklausa

Komentavimo iki data 2024-12-09

Akustika. Atviroje erdvėje sklindančio garso silpimas. 2 dalis. Ekspertinis garso slėgio lygių prognozavimo atviroje erdvėje metodas (ISO 9613-2:2024)

This document specifies an engineering method for calculating the attenuation of sound during propagation outdoors in order to predict the levels of environmental noise at a distance from a variety of sources. The method predicts the equivalent continuous A-weighted sound pressure level (as described in ISO 1996-series) under meteorological conditions favourable to propagation from sources of known sound emission. These conditions are for downwind propagation or, equivalently, propagation under a well-developed moderate ground‑based temperature inversion, such as commonly occurs in clear, calm nights. Inversion conditions over extended water surfaces are not covered and may result in higher sound pressure levels than predicted from this document (see e.g. References [11] and [12]). The method also predicts a long-term average A‑weighted sound pressure level as specified in ISO 1996-1 and ISO 1996-2. The long-term average A‑weighted sound pressure level encompasses levels for a wide variety of meteorological conditions. Guidance has been provided to derive a meteorological correction based on the angular wind distribution relevant for the reference or long-term time interval as specified in ISO 1996-1:2016, 3.2.1 and 3.2.2. Examples for reference time intervals are day, night, or the hour of the night with the largest value of the sound pressure level. Long-term time intervals over which the sound of a series of reference time intervals is averaged or assessed representing a significant fraction of a year (e.g. 3 months, 6 months or 1 year). The method specified in this document consists specifically of octave band algorithms (with nominal mid-band frequencies from 63 Hz to 8 kHz) for calculating the attenuation of sound which originates from a point sound source, or an assembly of point sources. The source (or sources) may be moving or stationary. Specific terms are provided in the algorithms for the following physical effects: — geometrical divergence; — atmospheric absorption; — ground effect; — reflection from surfaces; — screening by obstacles. Additional information concerning propagation through foliage, industrial sites and housing is given in Annex A. The directivity of chimney-stacks to support the sound predictions for industrial sites has been included with Annex B. An example how the far-distance meteorological correction C0 can be determined from the local wind-climatology is given in Annex C. Experiences of the last decades how to predict the sound pressure levels caused by wind turbines is summarized in Annex D. The method is applicable in practice to a great variety of noise sources and environments. It is applicable, directly, or indirectly, to most situations concerning road or rail traffic, industrial noise sources, construction activities, and many other ground-based noise sources. It does not apply to sound from aircraft in flight, or to blast waves from mining, military, or similar operations. To apply the method of this document, several parameters need to be known with respect to the geometry of the source and of the environment, the ground surface characteristics, and the source strength in terms of octave band sound power levels for directions relevant to the propagation. If only A‑weighted sound power levels of the sources are known, the attenuation terms for 500 Hz may be used to estimate the resulting attenuation. The accuracy of the method and the limitations to its use in practice are d

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ISO/DIS 20309 Viešoji apklausa

Komentavimo iki data 2024-12-18

Biotechnologija. Biobankai. Reikalavimai, keliami iš jūros gelmių gautoms medžiagoms

This document specifies requirements for the biobanking of deep-sea biological materials including the collection, processing, transportation and storage of deep-sea biological materials. This document is applicable only to deep-sea biological materials that can be used for biomolecular processing, e.g., nucleic acids, proteins, and metabolites. This document is applicable to all organizations performing research and development on deep-sea biological material. This document does not apply to the collection of biological material intended for environmental impact assessment for sea floor mining. NOTE International, national or regional regulations or requirements or a multiple of these can also apply to specific topics covered in this document.

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prEN 12082-2 Viešoji apklausa

Komentavimo iki data 2024-11-23

Geležinkelio taikmenys. Ašidėžės. 2 dalis. Pritaikymo naudoti procedūros

This document specifies the principles and methods for deployment of the system of axlebox rolling bearing(s), housing, seal(s) and grease, required for reliable operation of trains on European networks. It covers the conformity assessment with respect to design requirements on the rolling bearing(s) according EN 12080 and grease according EN12081 as well as the performance of (rig) tests according to EN 12082 1 . This document is historically developed for outboard applications with rotating inner rings, but can be used for vehicles with inboard bearing arrangements with rotation inner rings. The present document describes the complete deployment procedure for new axleboxes. For certain cases and based on a documented risk assessment, a reduced deployment procedure is described. This document only applies to axleboxes equipped with rolling bearings and greases according to EN 12080 and EN 12081. It is not within the scope of EN 12082 2 to define the validation procedure of box housings, sleeves or coves from a structural point of view. The relevance of these parts in the scope of this document is limited to the interaction with the axle box rolling bearing with respect to the required service.

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prEN ISO 19085-22 Viešoji apklausa

Komentavimo iki data 2024-11-25

Medienos apdirbimo mašinos. Sauga. 22 dalis. Diskinės vienapjūklės automatinės ir pusiau automatinės aukštyneigės skersinio pjaustymo staklės (ISO/DIS 19085-22:2024)

This document specifies the safety requirements and measures for single blade automatic and semi-automatic up-cutting cross-cut sawing machines, capable of continuous production use, hereinafter referred to also as “machines”.

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prEN 16282-7 Viešoji apklausa

Komentavimo iki data 2024-12-28

Komercinių virtuvių įranga. Komercinių virtuvių vėdinimo sistemų komponentai. 7 dalis. Stacionariųjų gaisro gesinimo sistemų įrengimas ir naudojimas

This document is applicable to ventilation systems in commercial kitchens, associated areas and other installations processing foodstuffs intended for commercial use. Kitchens and associated areas are special rooms in which meals are prepared, where tableware and equipment are washed and cleaned, food is stored, and food waste areas. This document specifies requirements and gives recommendations for the configuration, installation, testing, maintenance and safety of fixed kitchen fire extinguishing systems within the design of commercial kitchens in buildings. It is applicable for fire extinguishing systems providing appliance-specific protection as well as overlapping zone protection. This document provides the guidelines to install fixed fire extinguishing systems to protect against grease fires on the cooking appliances in the extract ventilation system. This document includes recommendations for the certification of system hardware, as well as design, installation and maintenance of the system. Unless otherwise specified, the requirements of this document are checked by way of inspection and/or measurement. NOTE Please note the possible existence of additional or alternative local national regulations on installation, appliance requirements and inspection, maintenance and operation. This document is applicable to kitchen ventilation systems excluding those in domestic kitchens.

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ISO/DIS 22373 Viešoji apklausa

Komentavimo iki data 2024-12-22

Saugumas ir atsparumas. Produktų ir dokumentų autentiškumas, integralumas ir patikimumas. Patikimų tiekimo ir vertės grandinių schema

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prEN 17131-1 Viešoji apklausa

Komentavimo iki data 2024-11-23

Tekstilė ir tekstilės gaminiai. Tam tikrų tirpiklių likučių nustatymas. 1 dalis. Aprotoninių tirpiklių nustatymas dujų chromatografijos metodu

This document specifies a method using gas chromatography with mass selective detector (GC-MS) for detection and quantification of extractable N,N-dimethylformamide (DMF), N,N-dimethylacetamide (DMAC), N-methyl-2-pyrrolidone (NMP) and N-ethyl-2-pyrrolidone (NEP) in filaments and coatings of textile products.

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prEN ISO 80601-2-69 Viešoji apklausa

Komentavimo iki data 2024-12-04

Elektrinė medicinos įranga. 2-69 dalis. Ypatingieji būtinosios saugos ir esminių eksploatacinių charakteristikų reikalavimai, keliami deguonies koncentratorių įrangai (ISO/DIS 80601-2-69:2024)

This document specifies requirements for the basic safety and essential performance of an oxygen concentrator in combination with its accessories, hereafter referred to as ME equipment, intended to increase the oxygen concentration of gas intended to be delivered to a single patient. Such oxygen concentrators are typically intended for use in the home healthcare environment by a single patient in various environments including any private and public transportation as well as in commercial aircraft. NOTE 1 Such oxygen concentrators can also be used in professional healthcare facilities. This document is applicable to a transit-operable and non-transit-operable oxygen concentrator. This document is applicable to an oxygen concentrator integrated into or used with other medical devices, ME equipment or ME systems. EXAMPLE 1 An oxygen concentrator with integrated oxygen conserving equipment function or humidifier function. EXAMPLE 2 An oxygen concentrator used with a flowmeter stand. EXAMPLE 3 An oxygen concentrator as part of an anaesthetic system for use in areas with limited logistical supplies of electricity and anaesthetic gases[2]. EXAMPLE 4 An oxygen concentrator with an integrated liquid reservoir function or gas cylinder filling system function. This document is also applicable to those accessories intended by their manufacturer to be connected to an oxygen concentrator, where the characteristics of those accessories can affect the basic safety or essential performance of the oxygen concentrator. NOTE 2 Such accessories can include, but are not limited to, masks, cannulae, extension tubing, humidifiers, carts, carrying cases, external power sources and oxygen conserving equipment. This document does not specify requirements for oxygen concentrators for use with a medical gas pipeline system. If a clause or subclause is specifically intended to be applicable to ME equipment only, or to ME systems only, the title and content of that clause or subclause will say so. If that is not the case, the clause or subclause applies both to ME equipment and to ME systems, as relevant. Hazards inherent in the intended physiological function of ME equipment or ME systems within the scope of this document are not covered by specific requirements in this document except in 7.2.13 and 8.4.1 of the general standard. NOTE 3 See also 4.2 of the general standard.

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prEN 14056-1 Viešoji apklausa

Komentavimo iki data 2024-12-28

Laboratoriniai baldai. Projektavimo ir įrengimo rekomendacijos. 1 dalis. Bendrieji dalykai

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. pre college/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 installation and design of laboratory benches, associated storage units, and for the provision and connection of services integral or delivered to the laboratory benches. 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. For safety storage cabinets for flammable liquids EN 14470-1 and for pressurized gas cylinders EN 14470-2 applies.

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prEN 50483-6 Viešoji apklausa

Komentavimo iki data 2024-12-21

Žemosios įtampos oro linijų susuktųjų kabelių pagalbinių reikmenų bandymo reikalavimai. 6 dalis. Aplinkos poveikio bandymai

EN 50483 series applies to overhead line fittings for tensioning, supporting and connecting aerial bundled cables (ABC) of rated voltage U0/U (Um): 0,6/1 (1,2) kV. This Part 6 defines the environmental tests in particular the climatic and corrosion ageing tests. The objective of these tests is to predict the behaviour of ABC accessories when subjected to sun radiation, to weather conditions (humidity, spraying water, heat, cold) and pollution. EN 50483 1, EN 50483 2, EN 50483 3 and EN 50483 4 specify which type tests included in this part of the standard are needed.

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prEN 3475-603 Viešoji apklausa

Komentavimo iki data 2024-12-21

Aerospace series - Cables, electrical, aircraft use - Test methods - Part 603: Resistance to wet arc tracking

This document specifies a method of assessing the behaviour of cable insulation subject to an electric arc initiated and maintained by contaminating fluid along the surface of the insulation. This document is intended to be used together with EN 3475-100. The primary aim of this test is: - to produce, in a controlled fashion, continuous failure effects, which are representative of those, which can occur in service when a typical cable bundle is damaged and subjected to aqueous fluid contamination. Electrical arcing occurs along the surface of the insulation between damage sites on adjacent cables; - to examine the aptitude of the insulation to track, to propagate electric arc to the electrical origin. Originally defined for 115 VAC network, this test also proposes conditions for 230 VAC network. However, for 230 VAC test condition only, the test EN 3475-605 can overrule and be applied as test governance as it has been demonstrated that test EN 3475-605 is more stringent, repeatable and reproductible. Unless otherwise specified in the product standard, only 115 VAC conditions are satisfied. Six levels of prospective fault current have been specified for concerned cable sizes (see Clause 8). It is agreed that sizes larger than 051 need not be assessed since the short-circuit phenomenon becomes dominant at low line impedances. Unless otherwise specified in the technical/product standard, sizes 002, 006 and 020 cable are assessed.

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prEN IEC 63359:2024 Viešoji apklausa

Komentavimo iki data 2025-01-10

Elektrotechninės takiosios medžiagos. SF6 alternatyvių dujų mišinių pakartotinio naudojimo specifikacija

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prEN IEC 60127-4:2024 Viešoji apklausa

Komentavimo iki data 2024-12-21

Miniatiūriniai saugikliai. 4 dalis. Universalieji moduliniai lydieji įdėklai (UMF). Į skylutes įlituojami ir paviršiuje montuojami įdėklai

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prEN ISO 12460-2 Viešoji apklausa

Komentavimo iki data 2025-01-09

Medienos skydai. Formaldehido išsiskyrimo nustatymas. 2 dalis. Mažos bandymų kameros metodas (ISO 12460-2:2024)

This document specifies a procedure for a chamber test with different options of chamber sizes to measure the formaldehyde concentrations in air from wood products under defined test conditions of temperature, relative humidity, loading and air exchange rate. Results obtained from this small-scale chamber test method can be used for quality control (factory production control – ‘FPC’) based on correlation established by reference chamber test methods according to ISO, EN or ASTM standards. The establishment of a correlation is described in Annex D.

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prEN 50483-2 Viešoji apklausa

Komentavimo iki data 2024-12-21

Žemosios įtampos oro linijų susuktųjų kabelių pagalbinių reikmenų bandymo reikalavimai. 2 dalis. Savilaikių sistemų inkariniai ir kabamieji veržikliai

EN 50483 series applies to overhead line fittings for tensioning, supporting and connecting aerial bundled cables (ABC) of rated voltage U0/U (Um): 0,6/1 (1,2) kV. This Part 2 applies to tensioning devices consisting of tension and suspension clamps, fittings and brackets designed to be used for installation of self supporting ABC defined in HD 626. Tests described in this document are type tests.

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prEN ISO 294-5 Viešoji apklausa

Komentavimo iki data 2025-01-18

Plastikai. Termoplastinių medžiagų bandinių liejimas slegiant. 5 dalis. Standartinių bandinių paruošimas anizotropijai tirti (ISO/DIS 294-5:2024)

ISO 294-5:2017 specifies a mould (designated the type F ISO mould) for the injection moulding of plates with a preferred size of 80 mm × 120 mm and a minimum size of 80 mm × ≥90 mm and with a preferred thickness of 2 mm for single-point and multi-point data acquisition. It has been found to provide the maximum anisotropic properties, with only a slight sensitivity to the rate of injection. Whenever possible, a two cavity mould is intended to be used. For the design of plastic parts, this will provide upper and lower bounds for the tensile properties. Matching the plate thickness to a given part thickness is not a suitable criterion because of the effect of mould filling rate and part geometry on anisotropy. Investigation of the anisotropy of materials is a special procedure intended to provide guidance in the design of mouldings for end-use applications and is not intended as a quality control tool. In the injection moulding of thermoplastic materials, the flow of molten polymer can influence the orientation of fillers such as fibreglass or the orientation of polymer chains, resulting in anisotropic behaviour. For the purposes of ISO 294-5:2017, the flow direction is defined as the direction from the gate to the far end of the mould cavity and the cross direction as the direction perpendicular to the flow direction. The type F mould is not intended to replace the type D mould used to determine the moulding shrinkage of thermoplastics.

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prEN 15154-1 Viešoji apklausa

Komentavimo iki data 2024-12-28

Avariniai saugos dušai. 1 dalis. Prie vandentiekio tinklo prijungti laboratorijų dušai

This document is a product specification, giving performance requirements for emergency safety body showers connected to the water supply. It is applicable to plumbed-in body showers only, located in laboratory facilities. Requirements are given in respect of the performance, installation, adjustment and marking of the showers as well as installation, operation and maintenance instructions to be given by the manufacturer. NOTE Attention is drawn to national regulations which might apply in respect of the installation and use of emergency safety showers.

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prEN 458 Viešoji apklausa

Komentavimo iki data 2025-01-18

Klausos apsaugos priemonės. Parinkimo, naudojimo, kasdienės ir techninės priežiūros rekomendacijos. Nurodymai

This document gives recommendations for the selection, use, care and maintenance of hearing protectors.

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prEN IEC 63287-3:2024 Viešoji apklausa

Komentavimo iki data 2024-12-29

Puslaidininkiniai įtaisai. Bendrosios puslaidininkių įvertinimo gairės. 3 dalis. Puslaidininkinių galios modulių patikimumo įvertinimo planų gairės

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prEN 14206 Viešoji apklausa

Komentavimo iki data 2025-01-18

Upių laivai. Keleivinių laivų trapai. Reikalavimai, bandymai

This document applies to gangways for passenger vessels for inland navigation. It specifies the type, main dimensions and test conditions that can be observed for safety reasons. NOTE A gangway serves as walkway between the passenger vessel and the shore.

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prEN ISO 17507-2 Viešoji apklausa

Komentavimo iki data 2024-12-21

Gamtinės dujos. Stūmoklinių vidaus degimo variklių dujinio kuro metano skaičiaus apskaičiavimas. 2 dalis. PKI metodas (ISO/DIS 17507-2:2024)

Part 2 of ISO 17507 describes the calculation method for the methane number of a gaseous fuel according to the methodology developed by DNV in a consortium with leading engine OEMs and fuel gas suppliers.

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prEN 1779 Viešoji apklausa

Komentavimo iki data 2025-01-18

Neardomieji bandymai. Sandarumo bandymas. Metodo ir matavimo priemonių parinkimo kriterijai

This document specifies criteria for the selection of the most suitable method and technique for the assessment of leak tightness by indication or measurement of a gas leakage. Annex A, normative, allows a comparison of standard test methods. Leak detection using hydrostatic tests, electromagnetic methods is not included in this document. This document can be used for equipment which can be evacuated or pressurized.

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prEN ISO 21660-2 Viešoji apklausa

Komentavimo iki data 2024-12-20

Kietasis atgautasis kuras. Drėgmės kiekio nustatymas taikant džiovinimo spintoje metodą. 2 dalis. Visuminio drėgmės kiekio nustatymas supaprastintu metodu (ISO/DIS 21660-2:2024)

This Document specifies a method for the determination of total moisture content of solid recovered fuels (SRF) by drying a sample in an oven. This method is suitable for use for routine production control on site, e.g. if a high precision of the determination of moisture content is not required. It is applicable to all solid recovered materials including solid recovered fuels. NOTE 1 The total moisture content of solid recovered materials including solid recovered fuels is not an absolute value and therefore standardised conditions for its determination are indispensable to enable comparative determinations. NOTE 2 The term moisture content when used with SRF can be misleading since these materials often contain varying amounts of volatile compounds (extractives) which can evaporate if determining moisture content by oven drying.

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ISO 23591:2021/DAmd 1 Viešoji apklausa

Komentavimo iki data 2024-12-25

Muzikos repeticijų patalpų ir erdvių akustinės kokybės kriterijai. 1 keitinys. Azijos (Korėjos) tradicinė muzika (Gugak)

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prEN 10342 Viešoji apklausa

Komentavimo iki data 2024-12-21

Magnetinės medžiagos. Elektrotechninio plieno lakštų, juostų ir šerdies plokštelių paviršiaus izoliacijos klasifikavimas

This document establishes a classification of surface insulations for electrical steel sheet, strip and laminations according to their general composition, relative insulating ability and function. These surface insulations are either oxide layers or applied coatings. The purpose of this classification is to create a nomenclature for the various types of surface insulations and to assist users of surface insulations by providing general information about the chemical nature and use of the surface insulations. It is not the intent of this classification to specify insulation requirements in terms of specific values of surface insulation resistance. Such requirements are to be agreed between the purchaser and the steel producer, where applicable. The classification is to be used in conjunction with the various specifications for cold rolled electrical steels (see Clause 2).

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