Standartų projektų sąrašas

prEN 17731 Archyvuotas

Komentavimo iki data 2026-04-07

Auginimo terpės. Savitojo elektrinio laidžio, pH, sausosios medžiagos, kiekybės, visuminio vario ir cinko kiekio, vandenyje tirpių chloridų kiekio ir CaCl2/DTPA ekstrahuojamo azoto, P2O5 ir K2O kiekio nustatymo metodai

This document refers to methods to be used for the determination of specific parameters in growing media, but does not contain the methods themselves. The specific parameters in this document include: — electrical conductivity; — chloride; — pH; — dry matter; — nitrogen, P2O5 (phosphorus pentoxide) and K2O (potassium oxide) content extractable by CaCl2/DTPA; — copper and zinc content; — quantity. This document is applicable to the fertilizing product blends where a blend is a mix of two or more fertilising products belonging to the categories of fertilizers, liming material, soil improvers, growing media, inhibitors and plant biostimulants, and where soil improvers and/or growing media are the components with the highest percentage in the blend by mass or volume, or in the case of products in liquid form by dry mass. If the soil improvers and/or growing media are not the components with the highest percentage in the blend, the European Standard relevant to the component with the highest percentage in the blend applies. In case a blend is composed of fertilising products mixed in equal quantities, the user of the standard decides which standard to apply. NOTE A growing medium consists of a single bulky (volume-building) component or a mix of bulky (volume-building) components (for example peat, wood fibres, coconut coir, compost, expanded perlite).

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EN IEC 62443-4-1:2018/prAA:2026 Viešoji apklausa

Komentavimo iki data 2026-05-20

Pramonės automatizavimo ir valdymo sistemų saugumas. 4-1 dalis. Saugaus produkto gyvavimo ciklo reikalavimai

This document specifies process requirements for the secure development of products used in industrial automation and control systems. It defines a secure development life-cycle (SDL) for the purpose of developing and maintaining secure products. This life-cycle includes security requirements definition, secure design, secure implementation (including coding guidelines), verification and validation, defect management, patch management and product end-of-life. These requirements can be applied to new or existing processes for developing, maintaining and retiring hardware, software or firmware for new or existing products. These requirements apply to the developer and maintainer of the product, but not to the integrator or user of the product. A summary list of the requirements in this document can be found in Annex B.

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prEN ISO 19472-1 Viešoji apklausa

Komentavimo iki data 2026-06-02

Miškų ūkio mašinos. Suktuvai. 1 dalis. Matmenys, eksploatacinės charakteristikos ir sauga (ISO/DIS 19472-1:2026)

This document stipulates measures as well as requirements in respect to performance and safety for winches that are used in agriculture and forestry for logging and skidding work. It applies to permanently mounted and removable winches and their components, which are mounted on mobile and self-propelled forestry machines as defined in ISO 6814:2009, as well as to winches for forestry mounted on agricultural tractors that are used for forestry work. The document also applies to capstan winches and winches using driving sheaves or driving pulleys for forestry. It does not apply to winches: — that are used for hoisting or lifting operations; — that are used in draglines; — that are used in in yarders, unless winches according to 5.17; — designed for traction aid purposes; — using operating and control voltages > 42 V; — that are used with log splitters according to EN 609-1. It applies exclusively to winches that are used for dragging loads on horizontal and inclined ground during logging operations or which are used to support tree felling work. The significant hazards included in this document are identified in Annex A. This document is not applicable to winches manufactured before the date of its publication.

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prEN 14726 Viešoji apklausa

Komentavimo iki data 2026-04-12

Aliuminis ir aliuminio lydiniai. Aliuminio ir aliuminio lydinių cheminės sudėties nustatymas kibirkštinio sužadinimo optinės emisijos spektrometrijos metodu

This document describes the criteria and the procedure for analysing aluminium and aluminium alloys with spark optical emission spectrometry (S-OES). This document specifies the following: — sample preparation; — operational guidelines for an optical emission spectrometer (including maintenance); — traceability of the analytical results to the International System of units: mass (kg); — assessing the uncertainty associated with each analytical result. This document refers to simultaneous spark emission spectrometers for the analysis of solid samples. This document applies to the determination of silicon, iron, copper, manganese, magnesium, chromium, nickel, zinc, titanium, boron, gallium, vanadium, beryllium, bismuth, calcium, cadmium, cobalt, lithium, sodium, phosphorus, lead, antimony, tin, strontium and zirconium in aluminium and aluminium alloys. This document is applicable to the determination of elements other than those listed above with the following conditions: a) suitable reference materials are available; and b) the instrument is suitably calibrated and equipped. The test result obtained from a spark optical emission spectrometer generally concerns an amount of less than one milligram per spark spot. The result can be used to refer to the laboratory test sample, to the aluminium or aluminium alloy melt or to the cast product.

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prEN IEC 63533:2026 Viešoji apklausa

Komentavimo iki data 2026-04-15

Baktericidinė įranga. Ore esančių mikroorganizmų inaktyvinimas naudojant baktericidinius ultravioletinius šviestuvus

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prEN 18292 Archyvuotas

Komentavimo iki data 2026-04-06

Neorganinės trąšos. Sausosios medžiagos kiekio nustatymas

This document specifies the procedure for the determination/calculation of the dry matter content of inorganic fertilizers for which the results of the performed analysis are expressed in relation to the dry residue.

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ISO/DIS 25782 Viešoji apklausa

Komentavimo iki data 2026-05-03

Anglies fiksacijos auginamuose makrodumbliuose, kuriuose vyksta fotosintezė, sparta. Ėminių ėmimo ir analizės metodai

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prEN 17450-4 Viešoji apklausa

Komentavimo iki data 2026-06-02

Stacionariosios gaisro gesinimo sistemos. Vandens rūko sistemų komponentai. 4 dalis. Pripildymo vožtuvų reikalavimai ir bandymo metodai

This document specifies requirements and describes test methods for deluge valves and their actuators used in water mist systems. Valves tested according to EN 12259-9 are considered to meet the requirements of this document and its technical documentation.

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prEN 50209:2026 Archyvuotas

Komentavimo iki data 2026-03-27

Aukštosios įtampos mašinų šynų ir ričių izoliacijos bandymas

This document applies to rotating electrical machines with rated voltages (UN) from 5 kV to 27 kV inclusive and with rated output from 5 MVA upwards for generators and from 5 MW upwards for motors. This document is also applicable to machines with rated outputs between 1 MVA (1 MW) and 5 MVA (5 MW) and with rated voltages of 5 kV and above, provided its use has been agreed beforehand. Requirements for machines with a rated voltage above 27 kV are the subject of individual agreement. In the case of machines whose windings are cured in the stator, tests on the separate winding elements are not possible; for these machines the requirements in Clause 6 apply. Converter fed machines are excluded from the scope of this standard. The described tests can be used for this type of machines however the criteria are mutually agreed upon between user and manufacturer.

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prEN IEC 60730-2-10:2026 Naujas

Komentavimo iki data 2026-04-08

Buitiniai ir panašios paskirties automatiniai elektriniai valdymo įtaisai. 2-10 dalis. Ypatingieji reikalavimai, keliami variklių paleidimo relėms

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prEN ISO 25935 Viešoji apklausa

Komentavimo iki data 2026-04-21

Geometrinės gaminio specifikacijos (GPS). Suvaržytosios būklės (ISO/DIS 25935:2026)

This document specifies rules for restrained states.

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prEN 1937 Viešoji apklausa

Komentavimo iki data 2026-04-28

Klijai. Cementinių ir kalcio sulfato grindų išlyginimo mišinių bandymo metodas. Standartinės maišymo procedūros

This document specifies the procedure for mixing cementitious and calcium sulfate-based floor levelling compounds with water and/or a liquid component as supplied by the manufacturer. This document applies to cementitious, and calcium sulfate-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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prEN IEC 61010-2-030:2026 Viešoji apklausa

Komentavimo iki data 2026-05-20

Saugos reikalavimai, keliami elektrinei matavimo, valdymo ir laboratorinei įrangai. 2-030 dalis. Ypatingieji reikalavimai, keliami bandymo ar matavimo grandines turinčiai įrangai

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EN 1999-1-4:2023/prA1 Viešoji apklausa

Komentavimo iki data 2026-05-28

Eurokodas 9. Aliumininių konstrukcijų projektavimas. 1-4 dalis. Šaltai formuoti lakštiniai konstrukcijų profiliuočiai

1.1 Scope of EN 1999-1-4 (1) EN 1999-1-4 gives design requirements for cold-formed trapezoidal aluminium sheeting. It applies to cold-formed aluminium products made from hot rolled or cold rolled sheet or strip that have been cold-formed by such processes as cold-rolled forming or press-breaking. NOTE 1 The rules in this part complement the rules in other parts of EN 1999-1. NOTE 2 The execution of aluminium structures made of cold-formed structures for roof, ceiling, floor and wall applications is covered in EN 1090-5. (2) EN 1999-1-4 gives methods for stressed-skin design using aluminium sheeting as a structural diaphragm. (3) EN 1999-1-4 does not apply to cold-formed aluminium profiles like C- and Z- profiles nor cold-formed and welded circular or rectangular hollow sections. (4) EN 1999-1-4 gives methods for design by calculation and for design assisted by testing. The methods for the design by calculation apply only within stated ranges of material properties and geometrical properties for which sufficient experience and test evidence is available. These limitations do not apply to design by testing. (5) EN 1999-1-4 does not cover load arrangement for loads during execution and maintenance. 1.2 Assumptions (1) For the design of new structures, EN 1999 is intended to be used, for direct application, together with EN 1990, EN 1991, EN 1992, EN 1993, EN 1994, EN 1995, EN 1997 and EN 1998. EN 1999 is intended to be used in conjunction with: - European Standards for construction products relevant for aluminium structures; - EN 1090-1, Execution of steel structures and aluminium structures - Part 1: Requirements for conformity assessment of structural components; - EN 1090-5, Execution of steel structures and aluminium structures - Part 5: Technical requirements for cold-formed structural aluminium elements and cold-formed structures for roof, ceiling, floor and wall applications.

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ISO/DIS 18982 Archyvuotas

Komentavimo iki data 2026-04-07

Darnusis turizmas. Pagrindinių darniojo turizmo principų įgyvendinimo turizmo vietovėse geroji praktika

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prEN IEC 61008-1:2026 Naujas

Komentavimo iki data 2026-04-08

Buitiniai ir panašios paskirties liekamąja srove valdomi jungtuvai be integruotos apsaugos nuo viršsrovių. 1 dalis. Bendrosios taisyklės

This document gives general requirements and tests for residual current operated circuit-breakers without integral overcurrent protection for household and similar uses (hereafter referred to as RCCBs), 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, intended principally for protection against shock hazard. RCCBs 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. They are also intended to be used to provide protection against fire hazards due to a persistent earth fault current. RCCBs 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 RCCBs 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. RCCBs 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 RCCBs used in locations which have severe environmental conditions. RCCBs within the scope of this document are intended for use in an environment with pollution degree 2 (see 7.3). RCCBs 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). RCCBs, with the exception of those with an uninterrupted neutral, are suitable for use in IT systems. RCCBs 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. RCCBs 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. Particular requirements are necessary for RCCBs intended to be used at frequencies other than 50 Hz or 60 Hz. For RCCBs 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: – RCCBs the current setting of which is adjustable without a tool; – RCCBs including batteries. This document is not intended to be used alone; it is intended to be used in conjunction with the relevant product standard, IEC 61008-2-1 or IEC 61008-2-2.

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prEN ISO 17186 Viešoji apklausa

Komentavimo iki data 2026-04-23

Oda. Fizikiniai ir mechaniniai bandymai. Paviršiaus dangos storio nustatymas (ISO/DIS 17186:2026)

ISO 17186:2011 specifies a method for determining the thickness of the surface coating applied to leather when measured under zero compression. It is applicable to all types of leather.

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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 4726 Viešoji apklausa

Komentavimo iki data 2026-05-19

Aerospace series - Aesthetical acceptance parameters for cabin equipment

This document specifies the inspection rules and the cosmetic acceptance criteria for surfaces of aircraft cabin equipment. Surfaces are considered under the aspects of technical feasibility of the industrial design. This document outlines the framework between customers, suppliers or manufacturers and OEMs with regard to cosmetic issues. This document aims to: a) provide the supplier or manufacturer with quality criteria to be met during the production-, testing- and quality-inspection-process; b) guide customer, OEM and supplier or manufacturer quality assurance with a description of cosmetic standards for the following inspections: — supplier or manufacturer internal QA inspection; — first article inspection; — source inspection; — incoming inspection; — final assembly line, cabin inspection; — customer presentation.

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EN 1998-5:2024/prA1 Viešoji apklausa

Komentavimo iki data 2026-05-28

Eurokodas 8. Atsparių žemės drebėjimui konstrukcijų projektavimas. 5 dalis. Geotechniniai aspektai, pamatai, atraminės ir požeminės konstrukcijos

1.1 Scope of EN 1998-5 (1) This document establishes general principles for the design and assessment of geotechnical systems in seismic regions. It gives general rules relevant to all families of geotechnical structures, to the design of foundations, retaining structures and underground structures and complements EN 1997-3 for the seismic design situation. (2) This document contains the basic performance requirements and compliance criteria applicable to geotechnical structures and geotechnical systems in seismic regions. (3) This document refers to the rules for the representation of seismic actions and the description of the seismic design situations defined in EN 1998-1-1 and provides specific definition of the seismic action applicable to geotechnical structures. 1.2 Assumptions (1) The assumptions of EN 1990 apply to this document.

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prEN IEC 60034-18-31:2026 Archyvuotas

Komentavimo iki data 2026-04-03

Sukiosios elektros mašinos. 18-31 dalis. Funkcinis izoliacijos sistemų įvertinimas. Forminių apvijų bandymo procedūros. Sukiosiose mašinose naudojamų izoliacijos sistemų šiluminis įvertinimas ir klasifikavimas

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prEN 3155-002 Viešoji apklausa

Komentavimo iki data 2026-04-14

Aerospace series - Electrical contacts used in elements of connection - Part 002: List and utilization of contacts

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prEN ISO 21227-1 Viešoji apklausa

Komentavimo iki data 2026-04-30

Dažai ir lakai. Padengto paviršiaus defektų įvertinimas naudojant skaitmeninį vaizdų apdorojimą. 1 dalis. Bendrieji nurodymai (ISO/DIS 21227-1:2026)

ISO 21227-1:2003 gives definitions for and provides guidance in the use of optical imaging systems for the quantitative characterization of defects on coated surfaces that occur after exposure in various test methods, e.g. stone chipping, weathering or cross-cut testing. One aim of ISO 21227 is to use optical imaging to reproduce the results of already existing methods for visual assessment. Additionally, optical imaging provides further information which can be used for a more detailed evaluation of coating defects. This part of ISO 21227 contains a general introduction in optical-imaging methods and definitions. The performance of individual test methods and requirements for precision are described in other parts of the standard.

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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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prEN 18320 Viešoji apklausa

Komentavimo iki data 2026-05-19

Tekstilinės grindų dangos. Išvaizdos keitimas naudojant Vetterrmann'o būgną su poliuretaninėmis iškyšomis

This document describes procedures that use the mechanical action of a Vettermann drum tester using polyurethane studs to produce changes in appearance (surface structure and colour) to all types of textile floor coverings. It does not include pilling or colour changes due to other actions. Changes produced by this drum tester are assessed in accordance with the applicable assessment standard.

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