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prEN 2593-001 Public enquiry

Comment end date 2026-10-31

Aerospace series — Bases for 10 A electromagnetic plug-in relays, two and four poles double thrown — Part 001: Technical specification

The present document specifies the characteristics, installation and mounting dimensions for plug-in relay bases for use with two and four poles double throw relays in accordance with EN 2548-001. Relay bases in accordance with this document shall be used at ambient temperatures between −70 °C and 125 °C and at altitudes up to 25 000 m.

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prEN IEC 60335-2-68:2026/prAA:2026 Public enquiry

Comment end date 2026-11-08

Household and similar electrical appliances - Safety - Part 2-68: Particular requirements for spray extraction machines, for commercial use

This standard deals with the safety of electrical portable, non-self-propelled motor-operated spray extraction machines with or without attachments and with or without electrical heating elements, intended for commercial indoor use. This standard applies to machines for commercial use. The following list, although not comprehensive, gives an indication of locations that are included in the scope: - public use areas such as hotels, schools, hospitals; - industrial locations, for example factories and manufacturing shops; - retail outlets, for example shops and supermarkets; - business premises, for example offices and banks; - rental services for those machines; - all uses other than normal housekeeping purposes. The following power systems are covered: - mains powered motors up to a rated voltage of 250 V for single-phase appliances and 480 V for other appliances, - battery-operated machines. This standard applies to machines in which the pressure of the employed cleaning agent does not exceed 2,5 MPa, and in which the product of the pressure (in MPa) and the flow of cleaning agent (in litres per minute) does not exceed 100, and in which the temperature of the cleaning agent at the spray nozzle outlet does not exceed 85 °C. This standard does not apply to - vacuum cleaners and water-suction cleaning appliances for household use (IEC 60335-2-2); - floor treatment machines for commercial use (IEC 60335-2-67, IEC 60335-2-72); - wet and dry vacuum cleaners, including power brush, for commercial use (IEC 60335-2-69); - hand-held and transportable motor-operated electric tools (IEC 60745 series, IEC 61029 series, IEC 62841 series). - machines designed for use in corrosive or explosive environments (dust, vapour or gas); - machines designed for picking up hazardous dusts (as defined in IEC 60335-2-69), inflammable substances, or glowing particles; - machines designed to handle hazardous solvents, such as flammable or explosive liquids;

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prEN 12457-1 Archived

Comment end date 2026-09-15

Granular waste materials, sludges, soil, soil-like materials and sediments - Leaching - Compliance test for leaching - Part 1: One-stage batch test at a liquid-to-solid ratio of 2 L/kg for materials with particle size below 4 mm (without or with size reduction)

This document in the series specifies a compliance test providing information on leaching of granular waste materials, sludges, soil, soil-like materials and sediments under the experimental conditions specified hereafter, and particularly a liquid to solid ratio of 2 L/kg dry matter. It applies to materials which have a particle size below 4 mm without or with size reduction. This document has been developed to investigate the leaching of inorganic and non-volatile organic substances from granular waste materials, sludges, soil, soil-like materials and sediments. It does not take into account the consequences of microbiological processes in organic degradable materials. The test procedure specified in this document produces an eluate which is subsequently characterized physically and chemically according to appropriate standard methods. This document includes two different procedures for eluate preparation prior to analysis, one procedure for non-volatile organic substances, inorganic substances and DOC and one for inorganic substances and DOC. When assessing only the leaching of inorganic substances and DOC, certain precautions are needed when assessing the leaching of organic substances can in some cases be omitted. This procedure cannot be applied to materials with a water content or such a water affinity that a good mixing of the solid with the predetermined quantity of liquid is not achievable. This procedure does not apply to materials reacting with the leachant, leading, for example, to excessive gas emission, a solidifying effect or an excessive heat release. In that case, the material can be wetted prior to carrying out the leaching test. This test cannot be used alone to determine the leaching behaviour of granular waste materials, sludges, soil, soil-like materials and sediments, as specified in EN 12920. This document does not address issues related to health and safety. This procedure cannot be applied to materials with a water content or such a water affinity that a good mixing of the solid with the predetermined quantity of liquid is not achievable. This procedure does not apply to materials reacting with the leachant, leading, for example, to excessive gas emission, a solidifying effect or an excessive heat release. In that case, the material can be wetted prior to carrying out the leaching test. This test cannot be used alone to determine the leaching behaviour of granular waste materials, sludges, soil, soil-like materials and sediments, as specified in EN 12920. This document does not address issues related to health and safety.

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EN 1991-4:2026/prA1 Public enquiry

Comment end date 2026-09-24

Eurocode 1 - Actions on structures - Part 4: Silos and tanks

1.1 Scope of EN 1991-4 (1) This document provides rules for calculating actions for the structural design of silos and tanks. NOTE 1 Silos are used for the storage of particulate solids. Tanks are used for the storage of liquids. NOTE 2 For limitations on rules for silos given in this document, see 1.3. NOTE 3 For limitations on rules for tanks given in this document, see 1.4. (2) This document includes some provisions for actions on silo and tank structures that are not only associated with the stored particulate solids or liquids (e.g. the effects of thermal differentials) but substantially affected by them. NOTE Liquid loads on tanks are very precisely defined. Many loads on silos are not known with great precision. This document provides guidance for many practical situations for which very limited certain knowledge is available, and the information is derived from the limited experimental and analytical information available, coupled with conclusions drawn from failure investigations. The information is not based on a sound statistical treatment of experimental data. (3) This document is intended for use with concrete, steel, aluminium, timber and FRP storage structures. NOTE FRP is the standard acronym for fibre reinforced polymer materials. (4) This document is also applicable for the structural assessment of existing silos and tanks, unless otherwise specified by the relevant authority or, if not specified, agreed between the relevant parties for the specific project. NOTE 1 Changes in filling or discharge arrangements, changes in the wall friction of inner surfaces, or in the use of the silo, including storage of different particulate solids, can be reasons for assessing existing silos. NOTE 2 Differentiation of the liquid stored can be a reason for assessing existing tanks. 1.2 Assumptions (1) The assumptions of EN 1990-1 apply. (2) This document is intended to be used in conjunction with EN 1990 1, with the other parts of EN 1991, EN 1992, EN 1993, EN 1995, EN 1997, EN 1998 and EN 1999 where relevant to the design of silos and tanks. 1.3 Limitations on silos 1.3.1 Geometrical limitations (1) The following geometrical limitations apply to the design rules for silos and silo batteries (see 3.2.59 and 3.2.60) covered by this document: - the silo planform cross-section shapes are limited to those shown in Figure 1.1c. NOTE 1 Further information concerning planform cross-section geometries is given in Clause 7. NOTE 2 For the determination of the effective diameter dc of the silo see Figure 1.1c; - the following dimensional limitations on the aspect ratio for free-standing single cell silos hc/dc, the overall height hb and the effective diameter dc apply (see Figure 1.1): hc/dc < 10 (1.1) hb < 100 m (1.2) dc < 60 m (1.3) NOTE 3 See Figure 1.1 for hc, dc and hb. - the structural transition lies in a single horizontal plane (see Figure 1.1a). [Figure 1.1 - Silo forms showing dimensions and pressure notation] (2) Only hoppers that are conical (i.e. axisymmetric), rectangular pyramidal with a/b ≤ 1,5, wedge-shaped (i.e. with two vertical end walls on opposite sides) or oblique are covered by this document. Other hopper shapes and hoppers with internal structures require special considerations. (3) Silos with an oblique conical hopper used to achieve an eccentric outlet are covered by this document. (4) Silos with an oblique hopper are covered, but generally silos with a systematically non-symmetric geometry are not specifically covered by this document. These situations include a chisel hopper (i.e. a wedge hopper beneath a circular cylinder) and hoppers with an elongated outlet other than wedge shaped. 1.3.2 Limitations on the stored particulate solids (1) The following limitations on the stored particulate solids apply to the design rules for silos contained in this document: ...

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prEN 3475-808 Public enquiry

Comment end date 2026-10-15

Aerospace series - Cables, electrical, aircraft use - Test methods - Part 808: Cross-talk

This document specifies a method for measuring the cross-talk of a cable or between cables.

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prEN 18381 Public enquiry

Comment end date 2026-10-17

Biological durability of wood and wood-based products - Preparation of wood and wood-based material specimens before leaching testing

This document specifies a method for preparing treated wood test specimens prior leaching test to obtain water samples from treated wood which has been in conditions designed to simulate treated wood exposed out of ground contact (wood held in the storage yard after treatment and which has been in conditions designed to simulate outdoor, out of ground contact situations, use Class 3), or continuous contact with the ground or with water (use Class 4 or 5). This document is also applicable to untreated wood and modified wood. NOTE 1 Test methods written in CEN/TC 38 include how to prepare specimens of wood and wood-based materials before leaching tests. NOTE 2 EN 350 can be considered when using this document for testing untreated wood or modified wood, regarding reference wood species, number of test specimens etc.

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prEN IEC 60335-2-79:2026/prAA:2026 Public enquiry

Comment end date 2026-11-08

Household and similar electrical appliances - Safety - Part 2-79: Particular requirements for high pressure cleaners and steam cleaners

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prEN ISO 2076 Public enquiry

Comment end date 2026-09-30

Textiles - Man-made fibres - Generic names and specific names (ISO/DIS 2076:2026)

This document defines the generic names used to designate the different categories of man-made fibres, based on a main polymer, currently manufactured on an industrial scale for textile and other purposes, together with the distinguishing attributes that characterize them. The term “man-made fibres” has been adopted for those fibres obtained by a manufacturing process, as distinct from materials which occur naturally in fibrous form. This document gives recommendations of rules for the creation of the generic name (see Annex A). NOTE These rules have been introduced in the sixth edition of ISO 2076, and thus, they are not applicable to the existing generic names of the previous editions.

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prEN IEC 61757-1-1:2026 Archived

Comment end date 2026-09-16

Fibre optic sensors - Part 1-1: Strain measurement - Strain sensors based on fibre bragg gratings

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prEN 304 619 V1.0.0 (2026-07) Public enquiry

Comment end date 2026-10-08

Cyber Security (CYBER); CRA; Cybersecurity requirements for software that searches for, removes, or quarantines malicious software

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prEN IEC 60034-33:2026 Public enquiry

Comment end date 2026-10-09

Rotating electrical machines - Part 33: Synchronous hydrogenerators including motor-generators - Specific requirements

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ISO/DIS 18209-1 Public enquiry

Comment end date 2026-11-03

Biotechnology — Biobanking of parasites — Part 1: Helminths

This document provides requirements for the biobanking of helminths as parasitic resources including the collection, safeguarding, classification, proliferation, preservation, storage and distribution of helminths. This document sets requirements for the quality of helminths and their associated data, the data collection, and safety management when handling the helminths as a source of human disease infection. This document is applicable to all organizations performing biobanking with helminths used for research and development. NOTE International, national or regional regulations or requirements, or multiple of them, can also apply to specific topics covered in this document.

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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 ISO 12217-2 Public enquiry

Comment end date 2026-10-25

Small craft - Stability and buoyancy assessment and categorization - Part 2: Sailing boats (ISO/DIS 12217-2:2026)

This document specifies methods for evaluating the stability and buoyancy of intact (i.e. undamaged) boats. The flotation characteristics of boats susceptible to swamping are also encompassed. The evaluation of stability and buoyancy properties using this document will enable the boat to be assigned to a design category (A, B, C or D) appropriate to its design and maximum load. This document is principally applicable to boats propelled primarily by sail (even if fitted with an auxiliary engine) of 6 m up to and including 24 m hull length. However, it can also be applied to boats less than 6 m if they are habitable multihulls or can be applied if they do not attain the desired design category specified in ISO 12217‑3 and they are decked and have quick-draining recesses which comply with ISO 11812. In relation to habitable multihulls, this document includes assessment of susceptibility to inversion, definition of viable means of escape and requirements for inverted flotation. This document excludes: — inflatable and rigid-inflatable boats covered by the ISO 6185 series, except for references made in the ISO 6185 series to specific clauses of the ISO 12217 series; — gondolas and pedalos; — surfboards including sailing surfboards; and — hydrofoils and foil stabilized boats when not operating in the displacement mode. NOTE Displacement mode means that the boat is only supported by hydrostatic forces. It does not include or evaluate the effects on stability of towing, fishing, dredging or lifting operations, which need to be separately considered if appropriate.

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prEN 18374 Archived

Comment end date 2026-09-15

Earthworks - Geotechnical laboratory tests - Lime and/or hydraulic binder treated materials - Test for determining the treatment suitability of a soil

This document specifies a test method to determine the suitability of a soil to be treated with lime and/or hydraulic binders, with regard to volumetric swelling and mechanical strength, within a period not exceeding two to three weeks. This test can be integrated into the general method of a study of treatment of materials with lime and/or a hydraulic binder, in compliance with standard EN 16907 4. It is applicable to soils and alternative (or anthropogenic) materials treated with lime and/or hydraulic binders for the construction of embankments and capping layers; in the areas of roads, railways and airports; industrial or commercial platforms; hydraulic works and road foundations. The results of this test: — are only valid for the configuration tested (soil, treatment product, dosage); — are in no case usable for dimensioning a structure including treated materials. The values currently accepted to define treatment suitability are indicated for information in Annex A.

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prEN 304 633 V1.0.0 (2026-07) Public enquiry

Comment end date 2026-10-08

Cyber Security (CYBER); CRA; Cybersecurity requirements for Internet connected toys covered by Directive 2009/48/EC that have social interactive features (e.g. speaking or filming) or that have location tracking features

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prEN IEC 63560:2026 Public enquiry

Comment end date 2026-10-11

Germicidal equipment - Excimer sources - Safety

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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 IEC 60645-5:2026 Archived

Comment end date 2026-09-09

Electroacoustics - Audiometric equipment - Part 5: Instruments for the measurement of aural acoustic impedance/admittance

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prEN 301 441 V2.2.0 (2026-07) Public enquiry

Comment end date 2026-09-20

Satellite Earth Stations and Systems (SES); Mobile Earth Stations (MES), including handheld earth stations, for Satellite Personal Communications Networks (S-PCN) operating in the 1,6 GHz/2,4 GHz frequency band under the Mobile Satellite Service (MSS); Harmonised Standard for access to radio spectrum

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prEN IEC 60704-2-21:2026 Public enquiry

Comment end date 2026-10-11

Household and similar electrical appliances - Test code for the determination of airborne acoustical noise - Part 2-21: Particular requirements for coffee preparation appliances

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prEN 196-18 Public enquiry

Comment end date 2026-10-13

Methods of testing cement - Part 18: Determination of whiteness or colour of cement and clinker

This document describes a method for the determination of whiteness and the colour of common cements and clinkers. This method can be used to determine the whiteness of white cements defined in the EN 197-1. This document does not apply to colour measurements on cement-based formulated products or cement-based products. The method is based on the measurement of the CIE XYZ trichromatic coordinates and describes the mathematical procedure for converting these coordinates into the CIE 1976 (L*a*b*) colour space. NOTE Although the possible values of the L* parameter range from 0 to 100, this document applies to the range between 70 and 100 (photopic vision).

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prEN 14509-2 Public enquiry

Comment end date 2026-11-08

Factory-made double skin metal faced insulating panels for 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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