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prEN ISO 23548 Viešoji apklausa

Komentavimo iki data 2025-08-05

Radioaktyvumo matavimas. Alfa spinduliuotę skleidžiantys radionuklidai. Bendrieji tyrimo metodai taikant gama spektrometriją (ISO 23548:2024)

This document describes a generic test method for measuring alpha emitting radionuclides, for all types of samples (soil, sediment, construction material, foodstuff, water, airborne, environmental bio-indicator, human biological samples as urine, faeces etc.) by alpha spectrometry. This method can be used for any type of environmental study or monitoring of alpha emitting radionuclides activities. If relevant, this test method requires appropriate sample pre-treatment followed by specific chemical separation of the test portion in order to obtain a thin source proper to alpha spectrometry measurement. This test method can be used to determine the activity, specific activity or activity concentration of a sample containing alpha emitting radionuclides such as 210Po, 226Ra, 228Th, 229Th, 230Th, 232Th, 232U,234U, 235U, 238U, 238Pu, 239+240Pu, 241Am or 243+244Cm. This test method can be used to measure very low levels of activity, one or two orders of magnitude less than the usual natural levels of alpha emitting radionuclides. Annexes B of UNSCEAR 2000 and UNSCEAR 2008 give, respectively, typical natural activity concentrations for air, foods, drinking waters and, soils and building materials. The detection limit of the test method depends on the amount of the sample material analysed (mass or volume) after concentration, chemical yield, thickness of measurement source and counting time. The quantity of the sample to be collected and analysed depends on the expected activity of the sample and the detection limit to achieve.

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prEN 18196 Viešoji apklausa

Komentavimo iki data 2025-08-12

Dumbliai ir jų produktai. Neorganinio arseno dumbliuose ir jų produktuose nustatymas anijonų mainų efektyviosios skysčių chromatografijos (HPLC) ir induktyviai susietos plazmos masių spektrometrijos (ICP-MS) metodu

This document describes a method for the determination of inorganic arsenic in algae by anion-exchange HPLC-ICP-MS following water bath extraction. Inorganic arsenic consists of arsenite, As(III) and arsenate, As(V). A representative test portion of the sample is treated with a diluted nitric acid and hydrogen peroxide solution in a heated water bath. Hereby the arsenic species are extracted into solution and As(III) is oxidised to As(V). The inorganic arsenic is selectively separated from other arsenic compounds using anion exchange HPLC (High Performance Liquid Chromatography) coupled on-line to the element-specific detector ICP-MS (Inductively Coupled Plasma Mass Spectrometry) for the determination of the mass fraction of inorganic arsenic. External calibration with solvent matrix-matched standards is used for quantification of the amount of inorganic arsenic. The method is based on method EN16802: Inorganic arsenic in food of plant and marine origin by HPLC-ICPMS, but covers more algae species. The present AsSugar species in certain algae can cause As peaks which might overlap with the As peaks related to the inorganic As. The current method includes a gradient elution method with quality criteria to ensure a correct identification of the inorganic arsenic.

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EN IEC 60691:2023/prA2:2025 Viešoji apklausa

Komentavimo iki data 2025-09-03

Šiluminiai saugikliai. Reikalavimai ir naudojimo vadovas

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prEN 378-1 Viešoji apklausa

Komentavimo iki data 2025-09-04

Šaldymo sistemos ir šilumos siurbliai. Saugos ir aplinkosauginiai reikalavimai. 1 dalis. Pagrindiniai reikalavimai, apibrėžtys, klasifikavimas ir atrankos kriterijai

This document specifies the requirements for the safety of persons and property, provides guidance for the protection of the environment and establishes procedures for the operation, maintenance and repair of refrigerating systems and the recovery of refrigerants. The term “refrigerating system” used in this document includes heat pumps. This part of EN 378 specifies the classification and selection criteria applicable to refrigerating systems. These classification and selection criteria are used in Parts 2, 3 and 5. This document applies to: a) refrigerating systems, stationary or mobile, of all sizes except to vehicle air conditioning systems covered by a specific product standard e.g. [7] b) secondary cooling or heating systems; c) the location of the refrigerating systems; d) replaced parts and added components after adoption of this document if they are not identical in function and in the capacity. Systems using refrigerants other than those listed in Part 5 of this standard are not covered by this document. Clause 7 specifies how to determine the refrigerant quantity safety limit in a given space, which, when exceeded, requires additional protective measures to reduce the risk. This document is not applicable to refrigerating systems which were manufactured before the date of its publication as a European Standard except for extensions and modifications to the system which were implemented after publication. This document is applicable to new refrigerating systems, extensions or modifications of already existing systems, and for existing stationary systems, being transferred to and operated on another site. This document also applies in the case of the conversion of a system to another refrigerant type, in which case conformity to the relevant clauses of Parts 1, 2, 3 and 5 of the standard is expected to be assessed. Product family standards dealing with the safety of refrigerating systems take precedence over horizontal and generic standards covering the same subject.

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prEN ISO 17078-2 Viešoji apklausa

Komentavimo iki data 2025-07-13

Naftos ir gamtinių dujų pramonė. Gręžimo ir gavybos įranga. 2 dalis. Srauto reguliavimo įtaisai, jungiami prie šerdžių su šonine kišene (ISO/DIS 17078-2:2025)

ISO 17078-2:2007 provides requirements for subsurface flow-control devices used in side-pocket mandrels (hereafter called flow-control devices) intended for use in the worldwide petroleum and natural gas industry. This includes requirements for specifying, selecting, designing, manufacturing, quality-control, testing and preparation for shipping of flow-control devices. Additionally, it includes information regarding performance testing and calibration procedures. The installation and retrieval of flow-control devices is outside the scope of ISO 17078-2:2007. Additionally, ISO 17078-2:2007 is not applicable to flow-control devices used in centre-set mandrels or with tubing-retrievable applications. ISO 17078-2:2007 does not include requirements for side-pocket mandrels, running, pulling, and kick-over tools, and latches that might or might not be covered in other ISO specifications. Reconditioning of used flow-control devices is outside of the scope of ISO 17078-2:2007.

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prEN 15181 Viešoji apklausa

Komentavimo iki data 2025-07-17

Dujinių orkaičių suvartojamos energijos matavimo metodas

This European Standard specifies the method of test for determining the gas energy consumption in gasfired domestic ovens when they are being used in one or more of the oven cooking modes defined in 3.1. It applies to the gasfired domestic ovens which are capable of utilizing gases of group H or group E, or third family gases, possibly after conversion according to instructions for use. This European Standard applies to these gasfired domestic ovens, whether they are separate appliances or component parts of domestic cooking appliances. This European Standard also applies to domestic appliances that can utilize gas and/or electrical energy to provide heat for cooking when the ovens are utilizing gas energy to provide heat for cooking, but not when electric energy is used to provide any or all of the heat for cooking in the oven. It is not applicable to: — microwave combination ovens; — small cavities ovens (3.2); — oven cavities not provided with devices to detect and control the temperature for the preparation of food; — cooking modes others than defined in 3.1.1 and 3.1.2; This European Standard is concerned neither with safety nor with overall performance requirements.

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EN ISO 4042:2022/prA1 Viešoji apklausa

Komentavimo iki data 2025-08-07

Tvirtinimo detalės. Elektrocheminių dangų sistemos. 1 keitinys (ISO 4042:2022/DAM 1:2025)

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prEN 1364-1 Viešoji apklausa

Komentavimo iki data 2025-08-12

Nelaikančiųjų elementų atsparumo ugniai bandymai. 1 dalis. Sienos

This document specifies a method for determining the fire resistance of non-loadbearing walls. This document is used in conjunction with EN 1363-1. It is applicable to internal non-loadbearing walls (partitions), with and without glazing, non-loadbearing walls consisting almost wholly of glazing (glazed non-loadbearing walls) and other internal and external non-loadbearing walls with and without glazing. The fire resistance of external non-loadbearing walls can be determined under internal or external exposure conditions. In the latter case the external fire exposure curve given in EN 1363-2 is used. This document is not applicable to: a) curtain walls (external non-loadbearing walls suspended in front of the floor slab), unless explicitly permitted under EN 1364-3 or EN 1364-4 which contain details of the methodology to be used; b) non-loadbearing walls containing door assemblies that are tested according to EN 1634-1. Specific requirements for testing glazed elements or non-loadbearing walls incorporating glazing are given in Annex A. Specific requirements relating to the testing of non-loadbearing external and internal walls designed to span horizontally between two independently proven fire resisting vertical structural elements are given in Annex B.

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prEN 18223 Viešoji apklausa

Komentavimo iki data 2025-09-02

Skaitmeninis gaminio pasas. Sistemų sąveikumas

The scope of this document includes: — the semantic description of a product, including its properties where relevant and the semantic aspects to represent the product lifecycle; — a common information model allowing for the implementation of data dictionary systems; — metadata models and formats to be used in exchange and representation, allowing for the integration of dictionaries; — rules on how to systematically use such metadata models when developing product group specific data models and dictionaries; — technical and organizational interoperability. This document follows the approach of standard interoperability layers and proposes the following aspects in this regard.

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prEN 12572-1 Naujas

Komentavimo iki data 2025-09-09

Dirbtinės laipiojimo konstrukcijos. 1 dalis. Dirbtinių laipiojimo konstrukcijų su saugos taškais saugos reikalavimai ir bandymo metodai

This document specifies the safety requirements and test methods for artificial climbing structures with protection points (hereafter referred to as ACS). This document is applicable for ACS in normal use for sport climbing. This document is not applicable to ice climbing, dry tooling and playground equipment.

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prEN IEC 62301:2025 Archyvuotas

Komentavimo iki data 2025-07-09

Prietaisų ir įrangos parengties būsenos galios matavimas

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prEN IEC 62264-4:2025 Viešoji apklausa

Komentavimo iki data 2025-07-18

Įmonės valdymo sistemų integracija. 4 dalis. Gamybos operacijų valdymo integracijos objektų modelių požymiai

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EN IEC 60601-2-22:2020/prAA:2025 Viešoji apklausa

Komentavimo iki data 2025-08-08

Elektrinė medicinos įranga. 2-22 dalis. Ypatingieji būtinosios saugos ir esminių eksploatacinių charakteristikų reikalavimai, keliami chirurgijos, kosmetologijos, terapijos ir diagnostikos lazerinei įranga

The amendment to EN IEC 60601-2-22:2020 contains the Annexes ZA (Normative references to international publications with their corresponding European publications) and ZZ (Relationship between this European standard and the General Safety and Performance Requirements of Regulation (EU) 2017/745 aimed to be covered). These two Annexes are necessary for the harmonization of the standard to the Regulation (EU) 2017/745.

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prEN IEC 63584-210:2025 Viešoji apklausa

Komentavimo iki data 2025-08-27

Atvirasis įkrovimo prieigų protokolas 2.1 (paspartintas procesas)

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prEN 18219 Viešoji apklausa

Komentavimo iki data 2025-09-02

Skaitmeninis gaminio pasas. Unikalieji identifikatoriai

This document defines the principles and specifies the requirements and guidelines for unique product identifiers, unique economic operator identifiers, and unique facility identifiers used in digital product passports. It covers the following areas: a) global uniqueness; b) persistence; c) syntax; d) semantics; e) interoperability; f) openness. This document accommodates unique product identifiers at three granularity levels of specificity: model, batch, or individual item, to support various operational needs. This document describes identification (ID) schemes that use issuing agencies, self-issuing systems, or a combination of both.

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EN 61291-5-2:2017/prA1:2025 Archyvuotas

Komentavimo iki data 2025-07-09

Optiniai stiprintuvai. 5-2 dalis. Kvalifikacinio įvertinimo reikalavimai. Skaidulinių optinių stiprintuvų patikimumo įvertinimas

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prEN ISO 9053-1 Viešoji apklausa

Komentavimo iki data 2025-07-17

Akustika. Orinės varžos nustatymas. 1 dalis. Statinio oro srauto metodas (ISO/DIS 9053-1:2025)

This document specifies the measurement of the determination of the static airflow resistance[1,2], in a laminar flow regime, of porous materials for acoustical applications.

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prEN ISO 7753 Viešoji apklausa

Komentavimo iki data 2025-08-05

Branduolinio kritiškumo sauga. Su eksploatavimu susijęs kritiškumo avarijų signalizavimo sistemų naudojimas (ISO 7753:2023)

This document provides requirements and guidance regarding the use of CAAS for operations of a nuclear facility. Requirements and guidance on CAAS design are provided in the IEC 60860. This document is applicable to operations with fissile materials outside nuclear reactors but within the boundaries of nuclear establishments. This document applies when a need for CAAS has been established. Information about the need for CAAS is given in Annex C. This document does not include details of administrative steps, which are considered to be activities of a robust management system (ISO 14943 provides details of administrative steps). Details of nuclear accident dosimetry and personnel exposure evaluations are not within the scope of this document. This document is concerned with gamma and neutron radiation rate-sensing systems. Specific detection criteria can also be met with integrating systems; systems detecting either neutron or gamma radiation can also be used. Equivalent considerations then apply.

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prEN 12929-1 Viešoji apklausa

Komentavimo iki data 2025-08-26

Lynų kelio įrenginių, suprojektuotų žmonėms vežti, saugos reikalavimai. Bendrieji reikalavimai. 1 dalis. Reikalavimai, keliami visiems įrenginiams

This document specifies the safety requirements applicable to all installations. In particular, it will include new requirements for better taking into account the effects of wind. It will also include new requirements relating to the prevention of accidents and the protection of worker

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prEN ISO 11133 Viešoji apklausa

Komentavimo iki data 2025-09-02

Maisto grandinės, pašarų ir vandens mikrobiologija. Mitybos terpių ir reagentų paruošimas, gamyba, laikymas ir veiksmingumo tyrimas (ISO/DIS 11133:2025)

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prEN 18122 Viešoji apklausa

Komentavimo iki data 2025-08-05

Aukštos vaikų kėdės ir pakylos su lapteliais. Pakylos su lapteliais. Reikalavimai ir bandymo metodai

This document specifies safety requirements and test methods for learning towers for domestic use that are intended to raise children to allow them to carry out tasks on kitchen worktops, bathroom sinks, etc. in a standing position. Learning towers are normally used by children from when they are able to stand unaided up to approximately 6 years old. Note If the product offers other functions other standards can be applied.

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prEN IEC 63474:2025 Archyvuotas

Komentavimo iki data 2025-07-09

Elektrinė ir elektroninė buitinė ir biuro įranga. Tinkliniu budėjimo režimu veikiančios prijungiamosios įrangos energijos matavimas

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prEN 601 Viešoji apklausa

Komentavimo iki data 2025-08-10

Aliuminis ir aliuminio lydiniai. Liejiniai. Su maisto produktais besiliečiančių liejinių cheminė sudėtis

This document specifies the maximum mass content of alloying elements and impurities in aluminium and aluminium alloy cast materials and articles designed to be in contact with foodstuff. It contains provisions for the demonstration of conformity of products with the present document. NOTE Materials include ingots and liquid metal. Articles are finished goods.

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ISO/DIS 8820-3 Viešoji apklausa

Komentavimo iki data 2025-08-04

Road vehicles — Fuse-links — Part 3: Fuse-links with tabs (blade type) Type C (medium), Type E (high current) and Type F (miniature)

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EN 60675:1995/prAB:2025 Viešoji apklausa

Komentavimo iki data 2025-08-27

Tiesioginio veikimo buitiniai elektriniai patalpų šildytuvai. Eksploatacinių charakteristikų matavimo metodai

Applies to electric direct-acting room heaters. They may be portable, stationary, fixed or built-in. It defines the main performance characteristics and the methods for measuring these characteristics. For thermal-storage room heaters, see IEC 60531.

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