List of drafts

prEN 1931 Public enquiry

Comment end date 2026-11-01

Flexible sheets for waterproofing - Bitumen, plastic and rubber sheets for roof waterproofing - Determination of water vapour transmission properties

This document specifies a method for the determination of the water vapour transmission properties of waterproofing sheets. It is applicable to factory made bitumen, plastic and rubber sheets for roof waterproofing, damp proof sheets, damp proof courses, underlays and vapour control layers.

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prEN 18380 Public enquiry

Comment end date 2026-11-01

Water conditioning equipment inside buildings - Devices using UV LED units - Requirements for performance, safety and testing

This document specifies definitions, principles of construction, requirements and methods for testing the performance of UV devices (240 nm to 290 nm nominal) for potable water installations according to EN 806-2 which are permanently connected to the building’s supply. Devices described by this document can be installed at the point of entry (POE), within the water distribution system inside the building or at the point of use (POU). Additionally, the devices described in this document can be used in mobile or temporary potable water installations, where the system is not permanently connected to a water supply. UV devices in the sense of this document are UV bactericidal treatment devices or UV disinfection devices for one of three specified water qualities, determined by the observed UV transmittance. Devices can be standalone, integrated into a larger appliance or part of multi-staged treatment process. The document relates solely to the performance of the UV reactor.

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EN 17451:2024/prA1 Public enquiry

Comment end date 2026-11-07

Fixed firefighting systems - Automatic sprinkler systems - Design, assembly, installation and commissioning of pump sets

This document specifies design, assembly, installation and commissioning requirements for pump sets for use in sprinkler systems conforming to EN 12845:2015+A1:2019. Where applicable, this document can also be used for pump sets for other water based fixed firefighting systems.

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prEN 14509-2 Public enquiry

Comment end date 2026-11-08

Factory-made double skin metal faced insulating sandwich panels - Part 2: Structural applications

This document covers structural double skin metal faced insulating sandwich panels intended to be used as elements for structural applications in construction works in roofs, in external and internal walls (including partitions) and in ceilings (hereafter referred to as structural sandwich panels). The structural sandwich panels consist of two faces made of: — steel; — stainless steel; — aluminium; — aluminium alloys; — copper and insulating core made of — rigid polyurethane foam (PU) (see 3.1.23); — expanded polystyrene (EPS) (see 3.1.21); — extruded polystyrene foam (XPS) (see 3.1.22); — phenolic foam (PF) (see 3.1.20); — mineral wool (MW) (see 3.1.19) either by using an auto-adhesive bonding technique or by using a separate adhesive layer. Products which are — curved; — perforated (perforated face); — used for stabilization purposes having insulation core material of phenolic foam; — consisting of two or more clearly specified layers of different insulating core materials (multi-layered) or of different materials per face; — used as ceilings when fastening is under permanent tension load; — parts of clean room kits, conditioning room kits, cold storage room kits and cold storage building envelope and building kits; — reused are excluded from this product definition.

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EN 12152:2023/prA1 Public enquiry

Comment end date 2026-11-07

Curtain walling - Air permeability - Performance requirements and classification

This document specifies requirements and classification of air permeability of both fixed and openable parts of curtain walling, under positive and negative static air pressure. This document applies to curtain walling as specified in EN 13830. NOTE This version of EN 12152:2023 will supersede EN 12152:2002. Existing test results according to EN 12152:2002 could be considered still valid compared with this version of EN 12152.

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prEN 18037-2 Public enquiry

Comment end date 2026-11-07

Guidelines on a sectoral cybersecurity assessment - Part 2: Application of sectoral cybersecurity assessment results by ICT product manufacturers

This document provides guidance for sectoral stakeholders and product manufacturers in generating ICT product-relevant information based on EN 18037. Sectoral stakeholders are supported in applying the risk and cybersecurity assessment methodology so that the information needs of product manufacturers are covered by the sectoral assessment report. Product manufacturers receive guidance in using methodology according to EN 18037 for own assumptions of their ICT product’s sector-specific risks and security requirements. This document uses a step-by-step approach for guiding sectoral stakeholders and product manufacturers through the assessment. For each step, the relevant information provided by EN 18037 is summarized or referenced and the enhancements or clarifications in support of the information needs of the ICT product manufacturers are pointed out. From the perspective of product manufacturers, the re-use of existing product-specific specifications and certification tools is of particular relevance. Therefore, this document provides guidance how the results of sectoral assessments according to EN 18037 can be connected with these specifications and tools.

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prEN IEC 63758-5-6:2026 Public enquiry

Comment end date 2026-11-22

Qi specification - Version 2.3 - Part 5-6: Mpp - Communications physical layer (Informative) (Fast Track)

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prEN 1366-1 Public enquiry

Comment end date 2026-12-12

Fire resistance tests for service installations - Part 1: Ventilation ducts

This document specifies a method for determining the fire resistance of vertical and horizontal ventilation ducts including ancillary items such as access panels, attenuators, compensators and control dampers, which are integral part of the tested ducts. The test examines the behaviour of ducts exposed to fire from the outside (duct A) and fire inside the duct (duct B). This document is used in conjunction with EN 1363-1. Annex A provides general guidance and gives background information. This document is not applicable to: a) ducts whose fire resistance depends on the fire resistance performance of a ceiling or wall (where ducts are located in cavities enclosed by fire-resistant shafts or ceilings); b) ducts containing fire dampers at points where they pass through fire separations; c) one, two or three sided ducts; d) fixing of suspension devices (e.g. anchors) to floors or walls.

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prEN IEC 63202-7:2026 Public enquiry

Comment end date 2026-11-15

Photovoltaic cells - Part 7: Measurement of bending strength of crystalline silicon photovoltaic cells

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prEN 18283 Public enquiry

Comment end date 2026-12-05

Artificial Intelligence - Concepts, measures and requirements for managing bias in AI systems

This document defines concepts, measures and requirements for assessment and treatment of bias in AI systems. This includes bias unwanted by the AI Provider and AI Deployer according to their specification of the AI system, in the context of the AI Act. This encompasses consideration of data bias including any data used to build or assess the AI system, but also system or model bias that can result from algorithmic factors, such as algorithm design choices.

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EN 1993-4-1:2026/prA1 Public enquiry

Comment end date 2026-11-19

Eurocode 3 - Design of steel structures - Part 4-1: Silos

1.1 Scope of EN 1993 4 1 (1) prEN 1993 4 1 provides rules for the structural design of steel silos of circular or rectangular plan-form, being free-standing (on ground) or supported on a structural framework (elevated). (2) prEN 1993 4 1 is applicable to silos constructed from isotropic rolled plates that are stiffened or unstiffened, from corrugated sheeting that is stiffened or unstiffened and from flat or corrugated plates assembled into box structures of different geometries. It applies to vertical walls, hoppers, roof structures, transition junctions and support structures. (3) prEN 1993 4 1 does not apply to storage vessels for silage and haylage, or to the storage of materials that are not free-flowing (see EN 1991 4). This Part 4-1 also does not cover: - resistance to fire; - cylindrical silos with internal subdivisions; - internal structures within a single silo (except for internal ties, as defined in 12.5); - silos with capacity less than 100 kN (10 tonnes); - hoppers that are supported on a structural framework; - cases where special measures are necessary to limit the consequences of accidents. (4) This document is applicable to silos within the following dimensional limits (see EN 1991-4): - Silo aspect ratio hb/dc < 10 - Silo total height hb < 70 m - Silo equivalent diameter dc < 60 m NOTE These dimensional limitations are more limited than those of EN 1991-4 which also applies to silos constructed from other materials. (5) Where this standard applies to circular planform silos, the geometric form is restricted to axisymmetric structures, but unsymmetrical actions on them and supports that induce forces in the silo structure that are not axisymmetric are included. (6) This part is concerned only with the requirements for resistance and stability of steel silos. For other requirements (such as operational safety, functional performance, fabrication and erection, quality control, details like man-holes, flanges, filling devices, outlet gates and feeders, etc.), see other relevant standards and information. (7) This part is concerned with both isolated silo structures and silos that are connected to others to form a battery of silos, but throughout this document the term silo refers to a single cell within a battery. (8) Provisions relating to special requirements of seismic design are provided in EN 1998 4, which complements or adapts the provisions of Eurocode 3 specifically for this purpose. (9) The structural design of supporting structures for the silo are dealt with in EN 1993 1 1. The supporting structure is deemed to consist of all structural elements beneath the bottom flange of the lowest ring of the silo (see Figure 1.1), though information on some forms of support structure is given in Clause 8 of this document. (10) Foundations in reinforced concrete for steel silos are dealt with in EN 1992 (all parts) and EN 1997 (all parts). 1.2 Assumptions (1) Unless specifically stated, the provisions of EN 1990, EN 1991 (all parts) and EN 1993 1 (all parts) apply. (2) The design methods given in EN 1993 4 1 are applicable if: - the execution quality is as specified in EN 1090 2, and - the construction materials and products used are as specified in the relevant parts of EN 1993 (all parts), or in the relevant material and product specifications. Figure 1.1 - Terminology used in silo structures ...

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prEN 13126-5 Public enquiry

Comment end date 2026-11-14

Building hardware - Hardware for windows and door height windows - Requirements and test methods - Part 5: Devices that restrict the opening of windows and door height windows

This document specifies requirements and test methods for durability, strength, security and function of devices that restrict the opening of windows and door height windows to a maximum opening width. Depending on the requirements imposed in Member States on the basis of building regulations or in tenders for window or door height windows, the hardware manufacturer designs the restrictors to allow opening widths of for example max. 89 mm, max. 100 mm or max. 120 mm; for the use of restrictors in building components. This document does not apply to a) restrictors with an opening width limitation of more than 120 mm; b) child protective window restrictors intended to be installed by the end consumers; such restrictors from the DIY market are covered in EN 16281; c) restrictors for window designs with sliding sashes. NOTE 1 Restrictors and reverse restrictors can be either a separate item of hardware or an integral part of hardware, for example a part of the operating gear or an integral part of a hinge. NOTE 2 It is possible to use more than one restrictor on a single window. NOTE 3 The requirements included within this document take the needs for child safety into consideration. This document applies to restrictors that are intended to be factory installed in windows and door height windows by specialist companies in their production facilities.

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prEN 16409 Public enquiry

Comment end date 2026-12-13

Chemicals used for treatment of water intended for human consumption - Dolomitic lime

This European Standard is applicable to Dolomitic lime used for treatment of water intended for human consumption. It describes the characteristics of magnesium oxide and specifies the requirements and the corresponding test methods for Dolomitic lime. It gives information on its use in water treatment.

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prEN IEC 60335-2-65:2026 Public enquiry

Comment end date 2026-11-22

Household and similar electrical appliances - Safety - Part 2-65: Particular requirements for air-cleaning appliances

This European Standard deals with the safety of electric air-cleaning appliances, their rated voltage being not more than 250 V for single phase and 480 V for other appliances, for household purposes. Also includes appliances intended to be used by laymen in shops, in light industry and on farms..

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prEN IEC 63551-1:2026 Public enquiry

Comment end date 2026-11-22

Semiconductor devices - Chip-scale testing for autonomous vehicles - Part 1: Combined LD-PD for LiDAR

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prEN 1015-18 Public enquiry

Comment end date 2026-12-10

Methods of test for mortar for masonry - Part 18: Determination of water absorption coefficient due to capillary action of hardened mortar

This document specifies a method for determining the water absorption coefficient due to capillary action of hardened mortars containing mineral binders and normal, recycled and as well as light weight aggregates.

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prEN 18397 Public enquiry

Comment end date 2026-10-20

Properties of carbon dioxide streams in carbon steel pipelines

This document specifies requirements for the composition of CO2 streams relevant to the integrity of carbon steel pipeline systems, including limits on non-condensable components. It establishes the framework conditions for the supply, transportation and distribution of CO2 streams. Considerations related to the health effects of the CO2 stream (e.g. toxicity), environmental impact, or other properties of impurities are outside the scope of this document.

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prEN ISO 17078-1 Public enquiry

Comment end date 2026-11-21

Oil and gas industries including lower carbon energy - Drilling, production and injection equipment - Part 1: Side-pocket mandrels (ISO/DIS 17078-1:2026)

ISO 17078:2004 provides requirements for side-pocket mandrels used in the petroleum and natural gas industry. This part of ISO 17078 includes specifying, selecting, designing, manufacturing, quality control, testing, and preparation for shipping of side-pocket mandrels. This part of ISO 17078:2004 does not address nor include requirements for end connections between the side-pocket mandrels and the well conduit. The installation and retrieval of side-pocket mandrels is outside the scope of this part of ISO 17078:2004. Additionally, this part of ISO 17078:2004 does not include specifications for centre-set mandrels, or mandrels that employ or support tubing-retrievable flow control devices. This part of ISO 17078:2004 does not include gas-lift or any other flow-control valves or devices, latches, and/or associated wire line equipment that can or cannot be covered in other ISO specifications. The side-pocket mandrels to which this part of ISO 17078:2004 refers are independent devices that can accept installation of flow-control or other devices down-hole.

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prEN ISO 16119-1 Public enquiry

Comment end date 2026-12-10

Agricultural and forestry machinery - Environmental requirements for sprayers - Part 1: General (ISO/DIS16119-1:2026)

This part of ISO 16119 specifies general requirements for the design and performance of sprayers, as defined in ISO 5681, with regard to minimizing the potential risk of environmental contamination during use, including misuse foreseeable by the manufacturer. It also specifies the requirements for identification of the sprayer and certain of its components, and the minimum content of the instruction handbook. It is intended to be used with each of the other parts of ISO 16119, which give requirements specific to particular types of sprayers (see Annex A). This part of ISO 16119 is applicable to all types of sprayers used in agriculture, horticulture, forestry and other areas, except knapsack sprayers. It does not cover safety aspects (see ISO 4254 6). • Scope out liquid fertilizer application • Adding Part 5 - Aerial sprayers • Instruction handbook content • Annex A, table with techniques needs to be updated. • Additional standards for application equipment listed in Annex A and covered by mandate M435 and M471 of the EC shall be developed.

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prEN 1488 Public enquiry

Comment end date 2026-11-22

Building valves - Expansion groups - Tests and requirements

This document specifies, dimensions, materials and performance requirements (including methods of test) for expansion groups, of nominal sizes from DN 15 to DN 25, having working pressures from 0,1 MPa (1 bar) to 1,0 MPa (10 bar). Expansion groups are fitted to the cold potable water supply only for expansion purposes, e.g. of storage water heaters, having a maximum distribution temperature of 95 °C. Expansion groups limit pressure in the water heater to which they are fitted, that is produced by thermal expansion of the water, prevent the backflow of water into the supply pipe and prevent the discharged water to get into contact with the water in the water heater. Expansion groups do not control temperature and alone do not constitute the protection required for storage water heaters. NOTE The use of the device specified in this document does not override the need to use controls (e.g. thermostats and thermal cut-outs) which act directly on the power sources of water heaters (for more information see Annex A).

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prEN IEC 63758-5-4:2026 Public enquiry

Comment end date 2026-11-22

Qi specification - Version 2.3 - Part 5-4: Mpp - Foreign object detection (Fast Track)

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prEN 81-72 Public enquiry

Comment end date 2026-12-10

Safety rules for the construction and installation of lifts - Particular applications for passenger and goods passenger lifts - Part 72: Firefighters lifts

1.1 This document specifies the additional requirements to EN ISO 8100-1:2026 for new passenger and goods passenger lifts, which can be used to support firefighting and rescue under firefighters control. 1.2 This document does not apply to: - lifts for evacuation due to circumstances which introduce other hazards such as explosion threat, chemical or biological attack, flooding, storm damage, or earthquake. In these cases, this document can be used as a basis with further measures as required from risk assessment; - the provision of evacuation aids to assist when the evacuation lift is unavailable; - lifts with partially enclosed wells; - lifts installed in new or existing buildings, which are not included in fire resisting building structure. 1.3 This document does not define the use of other than the highest deck of a multi deck lift for firefighting operations. 1.4 The significant hazards covered by this document are listed in Annex H. 1.5 The following significant hazards are out of the scope of this document: - fire or smoke in the firefighters lift well, safe areas, machinery spaces or car; - ingress of water to the lift well during firefighting operations; - insufficient or incorrectly located firefighters lifts; - insufficient firefighters lift capacity; - inability of users to understand the use of the lift in firefighting operations; - entrapment in waiting area (safe area) due to absence of lift service or adjacent stairs; - structural collapse or failure of building services (including public supply network, lighting, ventilation) before the firefighting using lifts has been completed; - presence of harmful gases, potentially explosive atmosphere, extreme climate conditions, transport of dangerous goods; - unavailability of the firefighters lift. This document is not applicable to firefighters lifts manufactured before the date of its publication.

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prEN IEC 60794-1-32:2026 Public enquiry

Comment end date 2026-11-03

Optical fibre cables - Part 1-32: Generic specification - Optical cable elements - Buffered optical fibre

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prEN IEC 63758-10:2026 Public enquiry

Comment end date 2026-11-22

Qi Specification - Version 2.3 - Part 10: Communications physical layer (Fast Track)

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prEN ISO 527-6 Public enquiry

Comment end date 2026-12-06

Plastics - Determination of tensile properties - Part 6: Measurement of strain distribution for randomly oriented chopped strand- or fibre- reinforced plastic composites (ISO/DIS 527-6:2026)

This document outlines methods for measuring the strain distribution for randomly oriented chopped strand- or fibre-reinforced plastic composites, based upon the general principles given in ISO 527-4. The methods are used to statistically evaluate the inherent variation of strain-based properties. The main purpose of this document compared to existing standards is to evaluate the strain distribution due to the random orientation of chopped fibres, while ISO 527-4 is sufficient for evaluating only the bulk elastic modulus. This standard provides two methods for evaluating an inherent strain distribution of the material, Method A as using DIC analysis system and Method B as using several strain gauges with a short gauge length. The methods are suitable for use with fibre-reinforced thermosetting and thermoplastic composites incorporating discontinuous or chopped reinforcements such as mats, chopped strands or tapes, long-fibre injection or combination of such reinforcements. The methods are not normally suitable for continuous fibre-reinforced materials which generate homogeneous strain distribution on the surface of the test specimen.

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