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EN 1991-1-4:2026/prA1 Public enquiry
Comment end date 2026-10-15
Eurocode 1 - Actions on structures - Part 1-4: Wind actions

1.1 Scope of EN 1991-1-4 (1) This document gives rules for the determination of natural wind actions for the structural design of building and civil engineering works for each of the loaded areas under consideration. This includes actions applied to the whole structure or parts of it, as well as wind-exposed elements attached to the structure. (2) This document is applicable to: - buildings and other civil engineering works with heights up to 200 m; - guyed masts, other open lattice structures and chimneys with heights up to 300 m; - bridges having no span greater than 200 m. (3) The rules contained in this document allow the evaluation of characteristic wind actions on land-based structures. (4) This document is applicable to offshore coastal structures. NOTE Additional or amended provisions can be necessary. (5) This document does not give guidance on non-synoptic winds (e.g. thunderstorms, downbursts, microbursts, tornadoes, etc.), mixed wind climates, nor does it give guidance on how to account for local effects (e.g. thermal effects, funnelling, strong arctic thermal surface inversion, etc.). (6) This document addresses simplified procedures for dynamic effects, mostly based on the assumption of a dominant single-mode response (see Annex E, Annex F and Annex G). General criteria for performing a full dynamic analysis under aerodynamic excitation are not treated in this document. (7) Wind pressure effects of passing vehicles are outside the scope of this document. NOTE See EN 1991 2 for wind effects from passing trains. 8) This document also provides guidance on wind tunnel testing and numerical modelling which can be needed or desirable when the shape or structural behaviour are unusual or do not strictly fall within the rules of the document, or in cases of unusual orography or other surroundings. 1.2 Assumptions (1) The assumptions given in EN 1990-1:2023+A1:2026, 1.2 apply.

prEN 3766 Public enquiry
Comment end date 2026-10-24
Aerospace series - Rivet, blind, nut plate, universal head, in heat resisting steel, passivated - Metric series

This document specifies the characteristics of blind nut plate rivets with universal head, in heat resisting steel, passivated, metric series, for maximum operating temperature 650 °C .

prEN IEC 60335-2-72:2026/prAA:2026 Public enquiry
Comment end date 2026-11-08
Household and similar electrical appliances - Safety - Part 2-72: Particular requirements for floor treatment machines with or without traction drive, for commercial use

his Document deals with the safety of powered ride-on and powered walk-behind machines intended for commercial indoor or outdoor use for the following applications: - sweeping, - scrubbing, - wet or dry pick-up, - polishing, - application of wax, sealing products and powder-based detergents, - shampooing of floors. These machines have a cleaning motion which is more linear than lateral or periodic. 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; - all uses other than normal housekeeping purposes. These machines may be equipped with a traction drive system. The following power systems are covered: - internal combustion engines, - mains powered motors up to a rated voltage of 250 V for single-phase appliances and 480 V for other appliances, - battery-operated machines. Battery-operated machines may be equipped with a built-in battery charger. This standard does not apply to - floor treatment appliances for household use (IEC 60335-2-10); - floor treatment machines for commercial use (IEC 60335-2-67); - spray extraction machines for commercial use (IEC 60335-2-68); - wet and dry vacuum cleaners, including power brush, for commercial use (IEC 60335-2-69); - road sweepers; - machines designed for use on slopes with a gradient exceeding 20 %; - machines equipped with a power take-off (PTO); - 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 for use in vehicles or on board of ships or aircraft.

prEN 1538 Public enquiry
Comment end date 2026-11-05
Execution of special geotechnical work - Diaphragm walls

This European Standard establishes general principles for the execution of diaphragm walls as either retaining walls or cut-off walls. NOTE 1 This standard covers only structures constructed in a trench excavated with a support fluid or in dry conditions, where soil is removed and replaced by concrete or slurry and with wall thickness B ≥ 40 cm. NOTE 2 Diaphragm walls can be permanent or temporary structures. NOTE 3 The following types of structure are considered: a) retaining walls: usually constructed to support the sides of an excavation in the ground. They include: 1) cast in situ concrete diaphragm walls; 2) precast concrete diaphragm walls; 3) reinforced slurry walls; b) cut-off walls: usually constructed to prevent migration of groundwater, clear or polluted, or of other contaminants present in the ground. They include: 1) slurry walls (possibly with membranes or sheet piles); 2) plastic concrete walls. NOTE 4 Walls formed shallow vertical trenches (typically excavations with a ratio of depth over thickness D/B < 5 or D < 5 m) are not covered by this standard.

prEN ISO 13356 Public enquiry
Comment end date 2026-10-31
Implants for surgery - Alumina ceramic material: Zirconia - Yttria-stabilized tetragonal zirconia (Y-TZP) (ISO/DIS 13356:2026)

This document specifies the requirements and corresponding test methods for a biocompatible and bio-inert ceramic bone-substitute material based on yttriastabilized tetragonal zirconia (yttria tetragonal zirconia polycrystal, Y-TZP) for use as a material for surgical implants.

prEN 15376 Public enquiry
Comment end date 2026-10-22
Automotive fuels - Ethanol as a blending component for petrol - Requirements and test methods

This document specifies requirements and test methods for marketed and delivered ethanol to be used as an extender for automotive fuel for petrol engine vehicles in accordance with the requirements of EN 228 [5]. It is applicable to ethanol used for blending at all levels up to and including 85 % (V/V). NOTE For the purposes of this document, the term “% (m/m)” and “% (V/V)” are used to represent respectively the mass fraction, µ, and the volume fraction, φ.

EN ISO 5367:2023/prA1:2026 Public enquiry
Comment end date 2026-10-24
Anaesthetic and respiratory equipment - Breathing sets and connectors - Amendment 1: Additional requirements for connectors for accessory access connection port (ISO 5367:2023/DAmd1:2026)

Additional requirements for connectors for accessory access connection port

prEN ISO 23279 Public enquiry
Comment end date 2026-11-12
Non-destructive testing of welds - Ultrasonic testing - Characterization of discontinuities in welds (ISO/DIS 23279:2026)

ISO 23279:2017 specifies how to characterize indications from discontinuities by classifying them as originating from planar or non-planar embedded discontinuities. This procedure is also suitable for indications from discontinuities that break the surface after removal of the weld reinforcement.

EN 1995-1-2:2025/prA1 Public enquiry
Comment end date 2026-11-12
Eurocode 5 - Design of timber structures - Part 1-2: Structural fire design

1.1 Scope of EN 1995-1-2 (1) This document deals with the design of timber structures for the accidental situation of fire exposure and it is intended to be used in conjunction with EN 1995-1-1 and EN 1991-1-2. This document only identifies differences from, or supplements to, normal temperature design. (2) This document applies to timber structures required to fulfil a loadbearing function, separating function or both. (3) This document gives principles and application rules for the design of structures for specified requirements in respect of the aforementioned functions and the levels of performance. (4) This document applies to structures, or parts of structures, that are within the scope of EN 1995-1-1 and are designed accordingly. (5) The methods given in this document are applicable to all products covered by European technical product specifications made reference to in this document. 1.2 Assumptions (1) In addition to the general assumptions of EN 1990, the following assumptions apply: - the choice of the relevant design fire scenario is made by appropriate qualified and experienced personnel, or is given by the relevant national regulation; - any fire protection measure taken into account in the design will be adequately maintained.

prEN 1127-2 Public enquiry
Comment end date 2026-11-26
Explosive atmospheres - Explosion prevention and protection - Part 2: Basic concepts and methodology for mining

This document specifies methods for explosion prevention and protection in mining by outlining the basic concepts and methodology for the design and construction of equipment, protective systems and components. This document applies to Group I equipment, protective systems and components intended for use in underground parts of mines and those parts of their surface installations at risk from firedamp and/or combustible dust. NOTE Detailed information on specific equipment, protective systems and components is contained in the relevant individual standards. Safety-relevant data regarding flammable materials and explosive atmospheres are required for the design and construction of the explosion protection measures. This document specifies methods for the identification and assessment of hazardous situations that may lead to explosions and describes the design and construction measures appropriate for the required safety. This is achieved by: — risk assessment; — risk reduction. The safety of equipment, protective systems, and components can be achieved by eliminating hazards and/or limiting the risk, i.e.: a) by appropriate design (without using safeguarding); b) by safeguarding; c) by information for use; d) by any other preventive measures. Measures in accordance with a) (prevention) and b) (protection) against explosions are dealt with in Clause 6 of this document; measures according to c) against explosions are dealt with in Clause 7 of this document. Measures in accordance with d) are not described in this document. They are dealt with in EN ISO 12100:2010, Clause 6. The preventive and protective measures described in this document will not provide the required level of protection unless the equipment, protective systems and components are operated in line with their intended use and are installed and maintained according to the relevant codes of practice or requirements. This document is applicable to any equipment, protective systems and components intended to be used in potentially explosive atmospheres. These atmospheres can arise from flammable materials processed, used or released by the equipment, protective systems and components or from materials in the vicinity of the equipment, protective systems and components and/or from the materials of construction of the equipment, protective systems and components. As shot firing can release potentially explosive atmospheres, this document is also applicable to the equipment used for shot firing, apart from the explosives and detonators. This document is applicable to equipment, protective systems and components at all stages of use. This document is not applicable to: — medical devices intended for use in a medical environment; — equipment, protective systems and components where the explosion hazard results exclusively from the presence of explosives or unstable chemical substances; — equipment, protective systems and components where the explosion can result from reaction of substances with oxidising agents other than atmospheric oxygen or by other hazardous reactions or conditions other than atmospheric conditions; — equipment intended for use in domestic and non-commercial environments where explosive atmospheres may only rarely be created and solely as a result of the accidental leakage of fuel gas; — personal protective equipment covered by Regulation (EU) 2016/425; the design and construction of systems containing desired, controlled combustion processes, unless they can act as ignition sources in potentially explosive atmospheres; — mines where firedamp and/or combustible dust are not naturally present and surface installations such as coal preparation plants, power plants, coke oven plants etc. in which an explosive atmosphere can be present, but which are not part of a coal mine. These are covered by EN 1127-1:2019.

prEN IEC 60447:2026 Public enquiry
Comment end date 2026-10-16
Basic and safety principles for man-machine interface, marking and identification - Actuating principles
EN ISO 15002:2024/prA1 Public enquiry
Comment end date 2026-10-17
Flow control devices for connection to a medical gas supply system - Amendment 1 (ISO 15002:2023/DAM 1:2026)
prEN 16423 Public enquiry
Comment end date 2026-11-12
Liquefied petroleum gases - Determination of dissolved residue - Gas chromatographic method using liquid, on-column injection

This European Standard specifies a method for the determination of the dissolved residual matter, also known as evaporation residue, in liquefied petroleum gases (LPG), by gas chromatography in the range of (10 to 600) mg/kg (ppm mass). This test method quantifies soluble organic compounds (hydrocarbon materials), sometimes called ‘evaporation residue’, which can be present in liquefied petroleum gases and which are substantially less volatile than the LPG product, i.e. with a boiling point between 174 °C and 522 °C (C10 to C40). Higher boiling materials, or materials that adhere permanently to the chromatographic column, will not be detected. WARNING - This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

EN 1995-2:2026/prA1 Public enquiry
Comment end date 2026-11-12
Eurocode 5 - Design of timber structures - Part 2: Bridges

(1) This document gives design rules for the structural parts of bridges made of timber or other wood-based materials, either singly or compositely with concrete, steel or other materials. (2) The provisions of this document supplement, and in some cases modify or supersede, provisions given EN 1995-1-1. (3) Prestressed timber-concrete composite (TCC) members are not covered by this document. The design of stress-laminated timber decks used as part of a TCC system is covered. (4) TCC structures which rely on friction between wood and concrete are not covered by this document.

prEN 12915-2 Public enquiry
Comment end date 2026-12-06
Products used for the treatment of water intended for human consumption - Granular activated carbon - Part 2: Reactivated granular activated carbon

This document is applicable to reactivated granular activated carbon used for treatment of water intended for human consumption. This document describes the characteristics of reactivated granular activated carbon and specifies the requirements and the corresponding test methods for reactivated granular activated carbon. This document gives information on the use of reactivated granular activated carbon in water treatment.

prEN ISO 19232-1 New
Comment end date 2026-10-08
Non-destructive testing - Image quality of radiographs - Part 1: Determination of the image quality value using wire-type image quality indicators (ISO/DIS 19232‑1:2026)

This document specifies a device and a method for the determination of the image quality of radiographs using wire-type image quality indicators.

prEN ISO 4638 Public enquiry
Comment end date 2026-10-12
Polymeric materials, cellular flexible - Determination of air flow permeability (ISO/FDIS 4638:2026)

Applicable to test pieces cut from products of cellular materials. Useful for two purposes: a) studying the structure of cellular products in connection with their physical properties and their method of manufacture and b) ensuring product quality (quality assurance). Describes principle, apparatus, test piece and conditions, procedure and calculation and expression of the results. Three figures deliver the details for testing.

prEN 14509-4 Public enquiry
Comment end date 2026-11-08
Factory-made double skin metal faced insulating sandwich panels - Part 4: Test methods for fixing of panels to substructure and for determining restraining effect on substructure

This document specifies test methods for determination of characteristics for fixing of factory-made double skin metal faced insulating sandwich panels (hereafter referred to as sandwich panels) to substructure and for stabilization of substructure. Sandwich panels are used for both self-supporting and structural applications in roofs, in external and internal walls (including partitions) and in ceilings in buildings as well as those in cold store applications.

EN 1990-2:2026/prA1 Public enquiry
Comment end date 2026-11-12
Eurocode - Basis of structural and geotechnical design - Part 2: Assessment of existing structures

(1) This document provides provisions for the assessment of existing structures, including geotechnical structures, and the general principles for interventions, to be used in conjunction with prEN 1990-1. NOTE This document is based on the general requirements and principles of structural reliability provided in prEN 1990-1. (2) Unless otherwise specified, prEN 1990-1 applies. (3) This document covers general principles regarding actions for assessment, complementing EN 1991 (all parts). NOTE Provisions for seismic actions due to earthquake are provided in EN 1998-3. (4) This document does not cover the design of new structural parts that will be integrated into an existing structure. NOTE For the design of new structural parts, see prEN 1990-1. (5) This document does not provide: — specific rules for initiation of assessment; — specific rules on how to undertake interventions that may be carried out as a result of an assessment; — material-specific technical provisions for existing structures; — provisions for seismic assessment and retrofitting of existing structures. NOTE For provisions for seismic assessment and retrofitting of existing structures, see EN 1998-3.

prEN IEC 63758-1-1:2026 Public enquiry
Comment end date 2026-11-22
Qi specification - Version 2.3 - Part 1-1: General - Introduction (Fast Track)
prEN 12697-14 New
Comment end date 2026-10-08
Bituminous mixtures - Test methods - Part 14: Water content

This document describes a test method for the determination of the water content of samples of bituminous mixtures. The test method is suitable for checking conformity to a product specification, where required. Exposure levels are related to both handling procedures and ventilation provision and it is emphasized that adequate training should be given to staff employed in the usage of these substances.

prEN IEC 62973-3:2025/prAA:2026 Public enquiry
Comment end date 2026-10-09
Railway applications - Rolling stock - Batteries for auxiliary power supply systems - Part 3: Lead acid batteries

The part 3 of IEC 62973 will get a European annex. The European Annex will only contain additions regarding European operating conditions (such as temperature) and requirements (such as discharging/charging characteristic) as well as general additions (which are contained in EN 50547 but have not been adopted into the IEC).

prEN 304 625 V1.0.0 (2026-08) Public enquiry
Comment end date 2026-10-26
Cyber Security (CYBER); CRA; Cybersecurity requirements for physical and virtual network interfaces
prEN 196-5 Public enquiry
Comment end date 2026-11-05
Methods of testing cement - Part 5: Pozzolanicity test for pozzolanic cement

In this document, the pozzolanicity of a cement is assessed by comparing the concentration of calcium ion, expressed as calcium oxide, present in the aqueous solution in contact with the hydrated cement, after a fixed period of time, with the quantity of calcium ion capable of saturating a solution of the same alkalinity.

EN 1993-1-6:2025/prA1 Public enquiry
Comment end date 2026-11-19
Eurocode 3 - Design of steel structures - Part 1-6: Strength and stability of shell structures

1.1 Scope (1) EN 199316 provides rules for the structural design of plated steel structures that have the form of a shell of revolution (axisymmetric shell). (2) This document is applicable to unstiffened fabricated axisymmetric shells formed from isotropic rolled plates using both algebraic and computational procedures, and to stiffened axisymmetric shells with different wall constructions using computational procedures. It also applies to associated circular or annular plates and to beam section rings and stringer stiffeners where they form part of the complete shell structure. The general computational procedures are applicable to all shell forms. (3) This document does not apply to manufactured shells or to shell panels or to elliptical shell forms, except that its computational procedures are applicable to all shell structures. This document does not apply to structures under seismic or other dynamic loading. It does not cover the aspects of leakage of stored liquids or solids. (4) Cylindrical and conical panels are not explicitly covered by this document. However, the provisions of 9.8 can be used provided that appropriate boundary conditions are taken into account. (5) This document defines the characteristic and design values of the resistance of the structure. (6) This document is concerned with the requirements for design against the ultimate limit states of: — plastic failure; — cyclic plasticity; — buckling; — fatigue. (7) Overall equilibrium of the structure (sliding, uplifting, overturning) is not included in this document. Special considerations for specific applications are included in the relevant application parts of EN 1993. (8) Detailed formulae for the simple calculation of unstiffened cylinders, cones and spherical domes are given in the Annexes. (9) Provisions for simple calculations on specific stiffened shell types are given in EN 199341. (10) This document is intended for application to steel shell structures. Where no standard exists for shell structures made of other metals, including high strength steels, the provisions of this document are applicable provided the appropriate material properties of the metal are taken into account. (11) The provisions of this document are intended to be applied within the temperature ranges defined in the relevant EN 1993 application parts. (12) Where no application part defines a different range, this document applies to structures within the following limits: — design metal temperatures lie within the range −50 °C to +100 °C, except when using the special provisions given in 5.1; — radius to thickness ratios (r/t) within the range 50 to 2 000; — manufactured circular hollow sections according to EN 10210 and EN 10219 are outside the scope of this document and are covered by EN 199311. However, if no other provisions are available, the rules of this document are useful for manufactured circular hollow sections. In particular, this document is applicable to the design of manufactured piles (see EN 19935) provided the imperfections and tolerance requirements of EN 19935 are adopted in place of those specified in this document, and where no other standard covers the specific pile geometry. NOTE 1 Experimental and theoretical data relating to manufactured circular hollow sections were not considered when this document was drafted. The application of this document to such structures therefore remains the responsibility of the user. NOTE 2 The stress design rules of this document can be rather conservative if applied to some geometries and loading conditions for relatively thickwalled shells. NOTE 3 Thinner shells than r/t = 2 000 can be treated using these provisions but the provisions have not been verified for such thin shells. NOTE 4 The maximum temperature is restricted so that the influence of creep can be ignored where high temperature creep effects are not covered by the relevant application part. [...]

Total records found: 314
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