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Total records found: 263
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prEN IEC 61284:2025 Public enquiry
Comment end date 2026-01-28
Overhead lines - Requirements and tests for fittings
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prEN 13654-2 Public enquiry
Comment end date 2026-01-12
Soil improvers and growing media - Determination of nitrogen - Part 2: Dumas method

This European Standard specifies a method for the determination of nitrogen in soil improvers and growing media. The dry combustion method was developed originally as a manual method by Dumas. Its application is improved greatly due to the use of modern automated equipment and is applicable to all forms of nitrogen. NOTE The requirements of the standard may differ from the national legal requirements for the declaration of the products concerned.

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prEN 15316-7-1 Public enquiry
Comment end date 2026-02-17
Energy performance of buildings - Method for calculation of system energy requirements and system efficiencies - Part 7-1: DHW instantaneous heat recovery- Module M8-13

This calculation module applies to instantaneous domestic hot water heat recovery using a counter-flow heat exchanger between the drain water and the incoming domestic cold water. This module calculates the recovered heat, to be taken into account in the overall calculation procedure of the energy performance of the building. The scope of this document is to standardize the: - required inputs; - calculation methods; - required outputs; of the instantaneous heat recovery from domestic hot water drains. This document provides a calculation method for one calculation interval. This calculation is intended to be connected to the whole building calculation model and takes into account the external conditions and system controls that may influence the instantaneous heat recovery from domestic hot water drains. This document does not apply to storage heat recovery or the use of drain water as a source for heat pumps. This document does not apply to sizing or inspection of domestic hot water heat recovery devices. Table 1 shows the relative position of this document within the set of EPB standards in the context of the modular structure as set out in EN ISO 52000-1. NOTE 1 The same Table is found in CEN ISO/TR 52000-2, with, for each module, the numbers of the relevant EPB standards and accompanying technical reports that are published or in preparation. NOTE 2 The modules represent EPB standards, although one EPB standard might cover more than one module and one module might be covered by more than one EPB standard, for instance a simplified and a detailed method respectively. See also Clause 2 and Table A.1 and Table B.1.

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prEN 18254 Archived
Comment end date 2025-12-16
Soil improvers and growing media - Determination of the inorganic arsenic content

This document specifies a method for extraction, separation, and determination of inorganic arsenic (iAs) in growing media and soil improvers using anion-exchange high performance liquid chromatography (HPLC) or ion chromatography (IC) coupled to ICP-MS. 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 document 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 document decides which standard to apply. NOTE A soil improver 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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prEN IEC 60115-4-10:2025/prAA:2025 Public enquiry
Comment end date 2025-12-24
Fixed resistors for use in electronic equipment - Part 4-10: Blank detail specification: Power resistors with axial leads for through-hole assembly on circuit boards (THT), for general electronic equipment, classification level G

This part of IEC 60115 is applicable to fixed power resistors with axial leads for through hole assembly (THT) on circuit boards for use in electronic equipment. The document is applicable to the drafting of detail specifications for fixed low-power film resistors with leads classified to level G, which is defined in IEC 60115-1:2020, 3.4 for general electronic equipment, typically operated under benign or moderate environmental conditions, where the major requirement is function. Examples for level G include consumer products and telecommunication user terminals. This detail specification is based upon the blank detail specification IEC 60115-4-10:202X. This detail specification establishes test schedules and performance requirements permitting the quality assessment of the resistors covered herein according to the quality assessment procedures prescribed by IEC 60115-1:2020, Annex Q.

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EN ISO 6145-7:2018/prA1 Public enquiry
Comment end date 2026-01-20
Gas analysis - Preparation of calibration gas mixtures using dynamic methods - Part 7: Thermal mass-flow controllers - Amendment 1: Correction of formula C.4 (ISO 6145-7:2018/DAM 1:2025)
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prEN 3660-064 Public enquiry
Comment end date 2026-01-27
Aerospace series - Cable outlet accessories for circular and rectangular electrical and optical connectors - Part 064: Cable outlet, style K, straight, for heat shrinkable boot, shielded, sealed, self locking - Product standard

This document defines a range of cable outlets, style K, straight, shielded, sealed, self-locking (anti-rotational), heat shrinkable boot, and/or metallic bands for use under the following conditions: The mating connectors are listed in EN 3660 002. Temperature range Class N: −65 °C to 200 °C; Class K: −65 °C to 260 °C; Class W: −65 °C to 175 °C; Class T: −65 °C to 175 °C (Nickel PTFE plating); Class Z: −65 °C to 175 °C (zinc nickel plating); Class V: −65 °C to 175 °C (Tin zinc plating, non-reflective); Class D: −65 °C to 175 °C (Tin zinc plating dark non-reflective). Associated electrical accessories: EN 3660 033 Metallic band (for shield termination). These cable outlets are designed for termination of overall shielding braid and/or individual cable shields. They accommodate/permit the termination of heat shrinkable boots.

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prEN ISO 28706-2 Public enquiry
Comment end date 2026-02-12
Vitreous and porcelain enamels - Determination of resistance to chemical corrosion - Part 2: Determination of resistance to chemical corrosion by boiling acids, boiling neutral liquids, alkaline liquids and/or their vapours (ISO/DIS 28706‑2:2025)

ISO 28706-2:2017 specifies a test method for the determination of the resistance of flat surfaces of vitreous and porcelain enamels to boiling acids, boiling neutral liquids, alkaline liquids and/or their vapours. This method allows the determination of the resistance of vitreous and porcelain enamels to the liquid and vapour phases of the corrosive medium simultaneously.

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prEN ISO 22123-1 Public enquiry
Comment end date 2026-02-17
Information technology - Cloud computing - Part 1: Vocabulary (ISO/IEC 22123-1:2023)

ISO/IEC 22123-1:2023 defines terms used in the field of cloud computing.

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prEN 18256 Archived
Comment end date 2025-12-16
Digestate - Determination of the residual biogas potential

This document specifies a method for the determination of the residual biogas potential in digestate in an anaerobic environment.

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prEN ISO 19123-2 New
Comment end date 2025-12-21
Geographic information - Schema for coverage geometry and functions - Part 2: Coverage implementation schema (ISO/DIS 19123-2:2025)

This document specifies a concrete[1] implementable, conformance-testable coverage structure based on the abstract schema for coverages defined in the ISO 19123 schema for coverage geometry. This document defines a structure that is suitable for encoding in many encoding formats. [1] "concrete" is used here as a contrast to "abstract" in the sense described in the Introduction.

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prEN 13598-2 Public enquiry
Comment end date 2026-01-27
Plastics piping systems for non-pressure underground drains and sewers - Unplasticized poly(vinyl chloride) (PVC-U), polypropylene (PP) and polyethylene (PE) - Part 2: Specifications for manholes and inspection chambers

This document is part of a System Standard for plastics piping systems of a particular material for a specified application. System Standards are based on the results of the work being undertaken in ISO/TC 138 "Plastics pipes, fittings and valves for the transport of fluids", which is a Technical Committee of the International Organization for Standardization (ISO). They are supported by separate standards on test methods to which references are made throughout the System Standard. The System Standards are consistent with general standards on functional requirements and on recommended practice for installation. This document does not cover sewage pump chambers, valve chambers and similar products. This document specifies the definitions and requirements for unplasticized polyvinyl chloride (PVC-U), polypropylene (PP) and polyethylene (PE) manholes and inspection chambers having a base with a flow channel and their joints to the piping system, intended for use in non-pressure underground drains and sewers for wastewater, up to a maximum depth of 6 m from ground level to the invert of the flow channel. This document is applicable to manholes and inspection chambers, intended for use buried in the ground outside a building structure only; reflected by the marking of products by "U". This document is applicable to manholes and inspection chambers intended for use in pedestrian or vehicular trafficked areas. NOTE 2 Products complying with this document can also be used in non-traffic areas. NOTE 3 Products complying with this document can be installed in underground applications without additional static calculation. Manhole and inspection chamber components can be manufactured by various methods e.g. extrusion, injection moulding, rotational moulding, low-pressure moulding or factory fabricated. Manholes and inspection chambers complying with EN 13598-2 are made from a prescribed set of components that are assembled together or manufactured as a single unit. NOTE 4 The complete manhole or inspection chamber assembly also includes items which are not specified in this document (for example near surface or surface components such as covers, frames and gratings complying with the relevant part of EN 124[1]). NOTE 5 Manholes and inspection chambers can be subject to national regulations and / or local provisions.

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prEN ISO/IEC 42001 Public enquiry
Comment end date 2026-01-25
Information technology - Artificial intelligence - Management system (ISO/IEC 42001:2023)

This document specifies the requirements and provides guidance for establishing, implementing, maintaining and continually improving an AI management system within the context of an organization. This document is intended for use by an organization providing or using products or services that utilize AI systems. This document helps the organization develop or use AI systems responsibly in pursuing its objectives and meet applicable regulatory requirements, obligations related to interested parties and expectations from them. This document is applicable to any organization, regardless of size, type and nature, that provides or uses products or services that utilize AI systems.

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prEN 18261 Public enquiry
Comment end date 2026-01-05
Compost and digestate - Determination of polycyclic aromatic hydrocarbons (PAH) by gas chromatography (GC) and high performance liquid chromatography (HPLC)

This document specifies different methods for quantitative determination of 16 polycyclic aromatic hydrocarbons (PAH) (see Table 1) in compost or digestate, using GC-MS, GCMS/MS or HPLC UV DAD/FLD covering a wide range of PAH contamination levels (see Table 1). When using fluorescence detection, acenaphthylene cannot be measured. Table 1 — Target analytes of this document [...table not reproduced...] The limit of detection depends on the determinants, the equipment used, the quality of chemicals used for the extraction of the sample and the clean-up of the extract. This document contains decision tables based on the properties of the sample and the extraction and clean-up procedure to be used. The method may be applied to the analysis of other PAH not specified in the scope, provided suitability is proven by proper in-house validation experiments.

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prEN ISO 20387 Public enquiry
Comment end date 2026-01-06
Biotechnology - Biobanking - General requirements for biobanks (ISO/DIS 20387:2025)

This document specifies general requirements for the competence, impartiality and consistent operation of biobanks including quality control requirements to ensure that collections of biological material and associated data are of appropriate quality. This document is applicable to all organizations performing biobanking. This can include biobanking of biological material: a) from multicellular organisms (e.g. human, animal, fungus and plant); b) from microorganisms; c) derived from sources such as environmental samples (e.g. soil, sediment, water, air). Biobank users, regulatory authorities, organizations and schemes using peer-assessment, accreditation bodies, and others can also use this document in confirming or recognizing the competence of biobanks. This document does not apply to biological material intended for therapeutic use. NOTE 1 International, national or regional regulations or requirements can also apply to specific topics covered in this document. NOTE 2 For entities handling human materials procured and used for diagnostic and treatment purposes, ISO 15189 and other clinical standards are intended to apply first and foremost.

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EN IEC 61591:2023/prA1:2025 Public enquiry
Comment end date 2026-01-16
Amendment 1 - Cooking fume extractors - Methods for measuring performance
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prEN 12896-2 Public enquiry
Comment end date 2026-02-01
Public transport - Reference data model - Part 2: Public transport network

This document incorporates the following main data packages: - Network Description; - Fixed Object; - Tactical Planning Components; - Explicit Frame. It is composed of the following parts: - main document representing the data model for the concepts shared by the different domains covered by Transmodel (normative); - Annex A containing the data dictionary and attribute tables, i.e. the list of all the concepts presented in the main document together with their definitions (normative); - Annex B presenting the model evolution (informative). - Annex C, providing details of the significant technical changes between this document and EN 12896-2:2016 (informative).

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prEN ISO 13169 Public enquiry
Comment end date 2026-02-10
Water quality - Uranium - Test method using alpha liquid scintillation counting (ISO/DIS 13169:2025)

This document specifies the measurement method for the determination of total activity concentration of uranium isotopes in non-saline waters by extraction and liquid scintillation counting. This method covers the measurement of soluble uranium isotopes in water in activity concentrations between approximately 2·10−3 Bq/kg and 10 Bq/kg when analysing a 1 l test sample volume with a 60 000 s counting time with a typical alpha LSC instrument. The ratio 234U/238U can also be determined. This method has not been tested for the measurement of other uranium isotopes.

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FprEN IEC 63341-2:2025/prAA:2025 Public enquiry
Comment end date 2026-01-14
Railway applications - Hydrogen and fuel cell systems for rolling stock - Part 2: Hydrogen fuel system

This document amends EN IEC 63341-2 which applies to onboard hydrogen fuel systems used to supply the fuel cells for the traction power and the auxiliaries supply of rolling stock vehicles (such as hybrid vehicles as defined in EN IEC 62864-1). NOTE 1 This document may also be used as informative recommendations for applications with hydrogen internal combustion engines. EN IEC 63341-2 applies to hydrogen storage in gaseous form. Other means of storage (such as liquid, liquid cryo-compressed, metal hydrides) are not covered in this document. EN IEC 63341-2 applies to any rolling stock type (e.g. light rail vehicles, tramways, streetcars, metros, commuter trains, regional trains, high speed trains, locomotives). EN IEC 63341-2 addresses the mechanical, fluidic and electrical interfaces between the on-board hydrogen fuel system and fuelling station. The fuelling station, fuelling protocol and communication for the fuelling protocol are not in the scope of this document. EN IEC 63341-2 defines: – the scope of supply of hydrogen fuel system (HFS) and the description of the interfaces with sub-systems internal and external to the rolling stock such as fuel cell power system, fuelling station systems; – the environmental constraints; – the design requirements to support HFS compliance with railway applications; – the safety and reliability requirements to design and install the HFS for railway applications; – the marking and labelling requirements; – the requirements related to storage, transportation, installation and maintenance; – the validation (type, routine and investigation tests) requirements

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prEN 9300-002 Public enquiry
Comment end date 2026-01-20
Aerospace series - LOTAR - LOng Term Archiving and Retrieval of digital technical product documentation such as 3D, CAD and PDM data - Part 002: Requirements

This document specifies business requirements for processes intended to preserve digital data. NOTE Data are stored and maintained for the purpose of retrievability and usability during the required archiving period. In addition, for the purpose of some business requirements, data are authentically preserved and accessed. This document is intended to allow for different implementations based on a company’s specific business environment. This document is not intended to incorporate company specific requirements and does not dictate specific organizational structures within a company. This document does not specify a design or an implementation of an archive system. Actual implementations can distribute responsibilities or break out functionality differently. This document assumes that all requirements for configuration management of the product data are in place and therefore are not specifically described in this document.

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prEN 18262 Public enquiry
Comment end date 2026-02-03
Precast concrete products - Product specifications

This document provides specifications for the production of unreinforced, reinforced and prestressed precast concrete products protected from adverse weather conditions during production, and made of compact light-, normal- and heavyweight concrete according to EN 206 with no appreciable amount of entrapped air other than entrained air. Concrete containing fibres for other than mechanical properties (steel, polymer or other fibres) is also covered. This document also covers clay, EPS, and lightweight formwork blocks for beam-and-blocks floor systems. It does not cover precast reinforced components of lightweight aggregate concrete with open structure nor glassfibre reinforced concrete. It can also be used to specify products for which there is no standard.

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prEN IEC 61300-2-37:2025 Public enquiry
Comment end date 2025-12-24
Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 2-37: Tests - Cable bending for fibre optic protective housings and hardened connectors
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prEN IEC 62337:2025 Public enquiry
Comment end date 2026-01-09
Commissioning of electrical, instrumentation and control systems in the process industry - Specific phases and milestones
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prEN ISO 21010 Public enquiry
Comment end date 2026-01-29
Cryogenic vessels - Gas/material compatibility (ISO/DIS 21010:2025)

ISO 21010:2017 specifies gas/material compatibility requirements (such as chemical resistance) for cryogenic vessels, but it does not cover mechanical properties (e.g. for low-temperature applications). ISO 21010:2017 provides general guidance for compatibility with gases and detailed compatibility requirements for oxygen and oxygen-enriched atmospheres. This document also defines the testing methods for establishing oxygen compatibility of materials (metallic and non-metallic) to be used for cryogenic vessels and associated equipment. ISO 21010:2017 focuses on materials that are normally with or could be in contact with cryogenic fluids.

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prEN ISO 11300-4 Public enquiry
Comment end date 2026-02-03
Piping systems for rehabilitation of underground drains, sewers and water supply networks - Part 4: Thermoplastic composite materials (ISO/DIS 11300‑4:2025)

This document specifies requirements and test methods for pipes and fittings which are part of piping systems for the renovation of underground non-pressure drainage and sewerage networks. It is applicable to pipes, fittings and assemblies, made from thermoplastic composite materials, as manufactured and as installed. It is not applicable to the existing pipeline. It is applicable to technique families for renovation: — lining with spirally-wound (SWO) pipes; — lining with a rigidly anchored plastic inner layer (RAPL). and intended to be used at an operating temperature of 20 °C as the reference temperature. In the case of lining with SWO pipes, where the pipes, are formed on site, to a fixed or variable diameter, by spirally winding and jointing a pre-manufactured profiled plastics strip, this document applies to, strips made of unplasticized poly(vinyl chloride) (PVC U), or of polyethylene (PE), with or without steel stiffening elements, and installed with or without integral locking mechanism. In the case of lining with RAPL, where a single rigid annulus of structural cementitious grout is formed behind a plastics inner layer serving as permanent formwork anchored to the grout. This document applies to integrally joined profiled plastics strips of PVC-U or PE or studded sheets of PE, and grout systems with or without steel reinforcement. It does not apply to the structural design of the lining system. NOTE Systems with multiple annuli are available, but these are controlled by patent rights and not covered by this document.

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Total records found: 263
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