Standartų projektų sąrašas

prEN 9300-500 Viešoji apklausa

Komentavimo iki data 2025-12-30

Aerospace series - LOTAR - Long Term Archiving and Retrieval of digital technical product documentation such as requirements, architecture, simulation, and analytical data - Part 500: Fundamentals and Concepts for Long Term Archiving to enable Model-based Systems Engineering

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prEN 14823 Viešoji apklausa

Komentavimo iki data 2026-01-13

Medienos ir medienos gaminių biologinis ilgaamžiškumas. Pentachlorfenolio kiekio medienoje kiekybinis nustatymas. Dujų chromatografijos metodas

This document specifies a laboratory method of determining the pentachlorophenol content of wood. The method is applicable to all types of pentachlorophenol (PCP) in woods and wood- based materials as well as for the analysis of waste timber with respect to its pentachlorophenol (PCP) content. The method described has a measurement range from 250 μg/kg up to pentachlorophenol (PCP) contents of 5 mg/kg of dry matter. These figures refer to the given example (where an aliquot of 1 ml of the extract is used for acetylation, see 9.4). NOTE 1 If lower quantification limits are required, a higher volume of extract aliquot can be used for derivatisation. NOTE 2 This method could have some modifications with some wood species as hardwoods. In general, in the case of complex matrix, a method using mass spectrometry is used.

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prEN 13039 Archyvuotas

Komentavimo iki data 2025-12-09

Dirvožemio gerinimo medžiagos ir auginimo terpės. Organinių medžiagų ir pelenų kiekio nustatymas

This document specifies a routine method for determining the organic matter and the ash content of soil improvers and growing media. NOTE The loss on ignition (LOI) is often used as an estimate for the content of organic matter in the sample. Inorganic substances or decomposition products (e.g. H2O, CO2, SO2, O2) are released or absorbed and some inorganic substances are volatile under the reaction conditions. Thus, a conversion to the organic carbon content is not possible.

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prEN ISO 19900 Viešoji apklausa

Komentavimo iki data 2025-12-21

Naftos ir dujų pramonė, įskaitant mažesnio anglies dioksido pėdsako energijos gamybą. Bendrieji reikalavimai, keliami statiniams atviroje jūroje (ISO/DIS 19900:2025)

This document specifies general provisions for the design and assessment of fixed (bottom-founded) and floating (buoyant) offshore structures. This document contains general provisions for the design of new structures and site assessment of existing structures. This document is applicable for all phases of the life of the structure, including: ¾ pre-service (e.g., fabrication, transportation, installation), ¾ service in-place, both during originally specified design service life and during any life extensions, ¾ functional upgrade, repurpose and reuse, and ¾ decommissioning, and removal. This document focusses on primary and secondary load bearing structure but also provides some provisions for tertiary and ancillary structure. NOTE ISO 24201[22] covers the design of stairs, gratings and handrails. This document was initially created for offshore oil & gas structures but is now also applicable to renewable energy offshore structures. This document does not apply to pipelines, risers or subsea systems.

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prEN IEC 61290-3-2:2025 Viešoji apklausa

Komentavimo iki data 2025-12-31

Optiniai stiprintuvai. Bandymo metodai. 3-2 dalis. Triukšmo faktoriaus parametrai. Elektrinio spektro analizatoriaus metodas

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prEN 18268 Viešoji apklausa

Komentavimo iki data 2026-01-18

Chemikalai žmonėms vartoti skirtam vandeniui ruošti. Preparatai apnašoms nuo membranų šalinti. Citrinų rūgštis

This document is applicable to citric acid used as an antiscalant for membranes in the treatment of water intended for human consumption. It describes the characteristics and specifies the requirements and the corresponding analytical methods for citric acid. It gives information on its use as an antiscalant for membranes in water treatment. It also provides guidance relating to safe handling and use (see Annex B).

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prEN ISO 15936 Archyvuotas

Komentavimo iki data 2025-12-09

Dirvožemis, atliekos, apdorotos biologinės atliekos ir dumblas. Visuminės organinės anglies nustatymas sausai deginant (ISO/DIS 15936:2025)

Specifies a method for the determination of the total carbon content in soil after dry combustion. The organic carbon content is calculated from this content after correcting for carbonates present in the sample. If carbonates are removed beforehand, the organic carbon content is measured directly. Applicable to all types of air-dried soil samples.

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prEN ISO 16634-2 Viešoji apklausa

Komentavimo iki data 2025-12-16

Maisto produktai. Visuminio azoto kiekio nustatymas pagal Diuma (Dumas) principą ir žalių baltymų kiekio skaičiavimas. 2 dalis. Varpiniai bei ankštiniai javai ir varpinių javų produktai (ISO/DIS 16634-2:2025)

ISO 16634-2:2016 specifies a method for the determination of the total nitrogen content and the calculation of the crude protein content of cereals, pulses and milled cereal products. This method, like the Kjeldahl method (see References [1] and [6]), does not distinguish between protein nitrogen and non-protein nitrogen. For the calculation of the protein content, various conversion factors are used (see 3.2).

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prEN ISO 148-3 Viešoji apklausa

Komentavimo iki data 2026-01-11

Metalinės medžiagos. Charpy smūginio tąsumo bandymas. 3 dalis. Sertifikuotų pamatinių Charpy bandinių su V įpjova, skirtų švytuokliniams muštuvams netiesiogiai patikrinti, paruošimas ir apibūdinimas (ISO/DIS 148-3:2025)

ISO 148-3:2016 specifies the requirements, preparation and methods for qualifying test pieces used for the indirect verification of pendulum impact testing machines in accordance with ISO 148‑2. It specifies notched test pieces with nominal dimensions identical to those specified in ISO 148‑1; however, the tolerances are more stringent. NOTE 1 The chemical composition or heat treatment, or both, are varied according to the energy level desired. NOTE 2 Reference test pieces are qualified on reference pendulum impact testing machines which are also described in this part of ISO 148.

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prEN ISO 4935 Viešoji apklausa

Komentavimo iki data 2026-01-15

Plienas ir geležis. Sieros kiekio nustatymas. Infraraudonosios absorbcijos metodas po deginimo indukcinėje krosnyje (ISO/DIS 4935:2025)

The method is applicable to sulphur contents between 0,002 % (m/m) and 0,10 % (m/m). Specifies principle, reagents and material, apparatus, sampling, procedure, expression of results and test report. Annex A gives additional information on the international cooperative tests. Annex B represents the precision date graphically. Annex C deals with induction furnaces and infrared sulfur analysers.

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prEN ISO 26082-1 Archyvuotas

Komentavimo iki data 2025-12-11

Oda. Fizikinio ir mechaninio bandymo metodai teplumui nustatyti. 1 dalis. Trynimo (Martindale'o) metodas (ISO/DIS 26082-1:2025)

This document specifies a method for determining the resistance of all forms of leather to visible soiling through repeated contact with soiled objects. It provides a physical pretreatment routine for leathers that may be vulnerable to loss of soiling resistance while in service, prior to conducting further tests such as cleaning.

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prEN 40000-1-2 Viešoji apklausa

Komentavimo iki data 2025-12-14

Skaitmeninių elementų turinčių gaminių kibernetinio saugumo reikalavimai. 1-2 dalis. Kibernetinio atsparumo principai

This document specifies general cybersecurity principles and general risk management activities for all products with digital elements, hereafter also referred to as 'products'. This document covers every stage of the product lifecycle to ensure and maintain an appropriate level of cybersecurity based on the risks. This document also provides generic elements to support the development of coherent product-category-specific standards (vertical standards). This document: — establishes generic cybersecurity principles applicable to all stages of the product lifecycle; — specifies requirements for risk assessment and treatment of cybersecurity risks; — specifies requirements on activities that can be applied to ensure an appropriate level of cybersecurity at every phase of the product lifecycle; — provides elements and considerations for product category specific standards in order to facilitate a harmonized approach. This document does not provide vertical product category specific activities and elements.

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prEN ISO 25652 Viešoji apklausa

Komentavimo iki data 2026-01-06

Nuosėdos, dirvožemis, dumblas ir atliekos. Perfluoralkilų ir polifluoralkilų grupes turinčių cheminių medžiagų (PFAS) analizė efektyviosios skysčių chromatografijos ir masių spektrometrijos metodu (ISO/DIS 25652:2025)

This document specifies a method for quantitative determination of various perfluorinated hydrocarbons by means of High-Performance Liquid Chromatography (HPLC) and mass spectrometry in soil, sludge, sediment and waste (see Table 1). For many substances to which this document applies a limit of quantification (LOQ) of 0.1 to 10 μg/kgdm can be achieved. The method can be applied to the analysis of additional PFAS not specified in the scope, if validity is proven by proper in-house validation protocols. For each target compound both, eventually occurring branched, isomers and the respective non-branched isomer are quantified together. In this method the amount of linear and branched PFAS is quantified using the response factor of the linear PFAS in the calibration standard and the total area of the linear and branched PFAS (Annex 1 gives more explanation)

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prEN ISO 14644-15 Viešoji apklausa

Komentavimo iki data 2026-01-15

Švariosios patalpos ir su jomis susijusi kontroliuojamoji aplinka. 15 dalis. Įrangos ir medžiagų tinkamumo naudoti vertinimas pagal ore sklindančių cheminių medžiagų koncentraciją (ISO/FDIS 14644-15:2025)

ISO 14644-15:2017 provides requirements and guidelines for assessing the chemical airborne cleanliness of equipment and materials which are foreseen to be used in cleanrooms and associated controlled environments which are linked to the ISO standard for cleanliness classes by chemical concentration (see ISO 14644‑8). The following are outside the scope of ISO 14644-15:2017: - health and safety requirements; - compatibility with cleaning agents and techniques; - cleanability; - biocontamination; - specific requirements of equipment and materials for processes and products; - design details of equipment.

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prEN 13040-1 Viešoji apklausa

Komentavimo iki data 2025-12-16

Dirvožemio gerinimo medžiagos ir auginimo terpės. Mėginių paruošimas. 1 dalis. Mėginių paruošimas cheminiams ir fizikiniams tyrimams, sausųjų medžiagų kiekio, drėgnio ir laboratorijoje tankinamos medžiagos piltinio tankio nustatymas

This document specifies a routine method for preparing a sample of organic soil improver, inorganic soil improver, growing medium, compost or digestate prior to chemical analysis and physical testing. The procedures described herein apply only to those samples that are supplied to a laboratory in the form in which they will be used for their intended purpose and to samples with a manufacturer’s guidance for reconstitution. NOTE 1 The determination of the laboratory bulk density is given in Annex A. NOTE 2 The results of an interlaboratory trial to determine moisture content are given in Annex B. NOTE 3 The results of an interlaboratory trial to determine laboratory bulk density are given in Annex B.

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prEN 12939 Viešoji apklausa

Komentavimo iki data 2025-12-18

Šiluminės statybinių medžiagų ir gaminių savybės. Šiluminės varžos nustatymas apsaugotos karštosios plokštės ir šilumos srauto matuoklio metodais. Stori didelės ir vidutinės šiluminės varžos gaminiai

This document specifies procedures to determine the thermal resistance of products whose thicknesses exceed the maximum thickness for guarded hot plate or heat flow meter apparatus. Most of the procedures described in this standard require apparatus that allows tests on specimens up to 100 mm thick . This document gives guidelines to assess the relevance of the thickness effect, i.e. to establish whether the thermal resistance of a thick product can or cannot be calculated as the sum of the thermal resistances of slices cut from the product, these guidelines complement the indications given in ISO 8302:1991[1] on the guarded hot plate apparatus. This document describes testing conditions which prevent the onset of convection which could take place in some products under the considered temperature differences and thicknesses.

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prEN IEC 60953-1:2025 Viešoji apklausa

Komentavimo iki data 2026-01-14

Garo turbinų priimamųjų šiluminių bandymų taisyklės. 1 dalis. Tikslusis didelių kondensacinių garo turbinų bandymo metodas

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prEN 4914-100 Viešoji apklausa

Komentavimo iki data 2026-01-20

Aerospace series - Test procedures for electromechanical all-or-nothing relays

This document specifies the test procedures of electromechanical all-or-nothing relays for use in aircraft electrical systems to EN 2282. This document represents the aeronautical version of the standard EN 116000-3 from which it draws inspiration.

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prEN 18192 Viešoji apklausa

Komentavimo iki data 2025-12-16

Mūro gaminiai. Mūro gaminių aplinkosauginės produktų deklaracijos. EN 15804:2012+A2:2019 papildančios produkto kategorijos taisyklės

This document provides product category rules (PCR) guidance for the development of environmental declarations for masonry units according to EN 15804:2012+A2:2019. This document defines the parameters to be reported, the EPD types (and life cycle stages) to be covered, the rules to be followed in order to generate life cycle inventories (LCI) and conduct life cycle impact assessments (LCIA), and the data quality to be used in the development of EPDs. This document is also applicable to clay construction products manufactured with the same materials and using the same processes as clay masonry units, In addition to the common parts of EN 15804:2012+A2:2019, this document: — defines the system boundaries; — defines the modelling and assessment of material-specific characteristics; — defines allocation procedures for multi-output processes along the production chain; — defines allocation procedures for reuse and recycling; — includes the rules for calculating the LCI and the LCIA underlying the EPD; — provides guidance/specific rules for the determination of the reference service life (RSL); — gives guidance on the establishment of default scenarios; and — gives guidance on default functional units for masonry products. This document is intended to be used for cradle to gate, cradle to gate with options or cradle to grave assessments, when the intention is clearly stated in the system boundary description.

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prEN 12390-10 Viešoji apklausa

Komentavimo iki data 2025-12-18

Sukietėjusio betono bandymai. 10 dalis. Betono atsparumo karbonizacijai esant atmosferinei anglies dioksido koncentracijai nustatymas

This document specifies a method of determining the carbonation rate of a concrete, expressed in mm/√a. This document establishes a procedure where a standardized climate controlled chamber is used and where specimens are placed on a natural exposure site protected from direct rainfall. The standardized climate controlled chamber procedure is the reference method. These procedures are applicable for the initial testing of concrete, including those manufactured with slowly reacting binders, provided that the ages at which the carbonation depth is measured, the number of measurements required to calculate the carbonation rate, as well as the length of exposure to CO2, are appropriately selected, as described in this document. These procedures are not applicable for factory production control.

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prEN 14420-7 Viešoji apklausa

Komentavimo iki data 2026-01-08

Jungiamosios žarnų detalės su veržikliais. 7 dalis. Kumštelinės movos

This document specifies the design, materials, dimensions and marking requirements for cam locking couplings that serve as the link between hoses and connections to transport liquids, solids and gases, except liquid gas and steam. For all sizes of aluminium cast material couplings and for all couplings of size DN 100, the pressure range is from -0,8 bar to 10 bar in the working temperature range from -20 °C to +65 °C. All other couplings according to this document are capable of operating within the pressure range from 0,8 bar to 16 bar in the working temperature range from -20 °C to +65 °C.

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EN 62841-4-2:2019/prA2:2025 Viešoji apklausa

Komentavimo iki data 2026-01-28

Elektriniai varikliniai rankiniai įrankiai, kilnojamieji įrankiai ir vejų bei sodų mašinos. Sauga. 4-2 dalis. Ypatingieji reikalavimai, keliami gyvatvorių genėtuvams

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prEN ISO 29981 Viešoji apklausa

Komentavimo iki data 2026-01-27

Pieno gaminiai. Bifidobakterijų skaičiavimas. Kolonijų skaičiavimo būdas (ISO 29981:2024)

This document specifies a method for the selective enumeration of bifidobacteria in milk products by using a colony-count technique at 37 °C under anaerobic conditions. The method is applicable to milk products, such as fermented (e.g. yoghurts) and non-fermented milks (e.g. pasteurized milks, skim milks, whey protein concentrates), milk powders and formulae (e.g. infant formulae, follow-up formulae for older infants, products for young children) where these microorganisms are present and viable, in combination with other lactic acid bacteria or alone. The method is also applicable to starter and probiotic cultures. For proposed quality criteria of dairy products, see, for example, CXS 243-2003. Bifidobacteria used in milk products usually belong to the following species (e.g. References [7] and [10]): — Bifidobacterium adolescentis; — B. animalis subsp. animalis; — B. animalis subsp. lactis; — B. bifidum; — B. breve; — B. longum subsp. infantis; — B. longum subsp. longum.

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prEN IEC 60335-2-6:2025/prAA:2025 Viešoji apklausa

Komentavimo iki data 2026-01-28

Buitiniai ir panašios paskirties elektriniai prietaisai. Sauga. 2-6 dalis. Ypatingieji reikalavimai, keliami stacionariosioms viryklėms, kaitlentėms, orkaitėms ir panašiems prietaisams

This European standard deals with the safety of stationary electric cooking appliances, such as cooking ranges, hobs, and ovens, for household use, their rated voltage being not more than 250 V for single-phase appliances connected between one phase and neutral, and 480 V for other appliances including direct current (DC) supplied appliances and battery-operated appliances

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ISO/DIS 37200 Naujas

Komentavimo iki data 2026-02-09

Šiuolaikinės vergovės rizikos valdymas. Nurodymai dėl prekybos žmonėmis ir priverstinio darbo prevencijos, nustatymo ir atsako į juos

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