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prEN 18357 Archived
Comment end date 2026-09-15
Digital declaration of performance and conformity (DoPC) of construction products - Methodology, general requirements and criteria to develop data templates

This document specifies a methodology, with general requirements and criteria, for the development of the data templates for the declaration of performance and conformity (DoPC) of construction products. NOTE This document integrates a data template structure from EN ISO 23387:2025 [4] to be used for DoPC of construction products, together with a methodology for experts to develop domain specific data templates, following EN ISO 23386:2020 [3] and the standards from CEN/CLC/JTC 24. Annex A provides guidance for the development of data templates for harmonized technical specifications (hTS) and European assessment documents (EAD), for product technical committees (TCs) and other stakeholders.

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: ...

ISO/DIS 19072-1 Public enquiry
Comment end date 2026-10-04
Road vehicles — Connection interface for pyrotechnic devices, two-way and three-way connections — Part 1: Pocket interface definition
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.

ISO/DIS 22859 Public enquiry
Comment end date 2026-10-23
Biotechnology — Biobanking — Requirements for human mesenchymal stromal cells derived from umbilical cord tissue

This document specifies requirements for the biobanking of human mesenchymal stromal cells derived from umbilical cord tissue (i.e. Wharton’s jelly), further referred to as hUC-MSCs, including the collection of umbilical cord tissue and associated data, isolation, culture characterization, quality control, cryopreservation, storage, thawing, disposal, distribution and transport..This document is applicable to all organizations performing biobanking of hUC-MSCs used for research and development. This document does not apply to hUC-MSCs for the purpose of in vivo application in humans, clinical applications or therapeutic use. NOTE International, national or regional regulations or requirements, or multiple of them, can also apply to specific topics covered in this document.

prEN 3614 Public enquiry
Comment end date 2026-10-02
Aerospace series - Bolt, normal hexagonal head, relieved shank, long thread, in heat resisting steel FE-PA2601 (A286), silver plated - Classification: 900 MPa / 650 °C

This document specifies the characteristics of silver plated bolts, normal hexagonal head with relieved shank and long thread in heat resisting steel FE-PA2601 (A286), for aerospace applications. Classification: 900 MPa /650 °C

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
ISO/DIS 24651 Public enquiry
Comment end date 2026-10-23
Biotechnology — Biobanking — Requirements for human mesenchymal stromal cells derived from bone marrow

This document specifies requirements for the biobanking of human mesenchymal stromal cells derived from bone marrow (hBM-MSCs), including the collection of bone marrow and associated data, isolation, culture, characterization, quality control, cryopreservation, storage, thawing, disposal, distribution and transport. This document is applicable to all organizations performing biobanking with hBM-MSCs used for research. This document does not apply to hBM-MSCs for the purpose of in vivo application in humans, cell therapy, clinical applications, tissue engineering or therapeutic use. NOTE International, national or regional regulations or requirements, or multiple of them, can also apply to specific topics covered in this document.

prEN ISO 17640 Public enquiry
Comment end date 2026-11-12
Non-destructive testing of welds - Ultrasonic testing - Techniques, testing levels, and assessment (ISO/DIS 17640:2026)

This document specifies techniques for the manual ultrasonic testing of fusion-welded joints in metallic materials of thickness ≥8 mm which exhibit low ultrasonic attenuation (especially that due to scatter) at object temperatures from 0 °C to 60 °C. It is primarily intended for use on full penetration welded joints where both the welded and parent material are ferritic. Where material-dependent ultrasonic values are specified in this document, they are based on steels having an ultrasonic sound velocity of (5 920 ± 50) m/s for longitudinal waves and (3 255 ± 30) m/s for transverse waves. This document specifies four testing levels, each corresponding to a different probability of detection of imperfections. Guidance on the selection of testing levels A, B, and C is given in Annex A. This document specifies that the requirements of testing level D, which is intended for special applications, be in accordance with general requirements. Testing level D can only be used when defined by specification. This includes tests of metals other than ferritic steel, tests on partial penetration welds, tests with automated equipment, and tests at object temperatures outside the range 0 °C to 60 °C. This document can be used for the assessment of discontinuities, for acceptance purposes, by either of the following techniques: a) evaluation based primarily on length and echo amplitude of the discontinuity; b) evaluation based on characterization and sizing of the discontinuity by probe movement techniques.

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.

prEN ISO 3269 Public enquiry
Comment end date 2026-10-01
Fasteners - Acceptance inspection (ISO/DIS 3269:2026)

This document specifies an inspection procedure to be used by the purchaser where no prior agreement exists. It also specifies a reference acceptance procedure for acceptance or rejection of an inspection lot, when no agreement can be reached between the purchaser and the supplier, or where conformance to specification is disputed. It applies to inspection lots of bolts, screws, studs, nuts, pins, washers, rivets and other related fasteners. This document applies to fasteners not intended for high volume machine assembly, special-purpose applications or specially engineered applications requiring more advanced in-process control and lot traceability. For in-process control or final inspection by the manufacture and sorting, see ISO 16426.

prEN IEC 60073:2026 Public enquiry
Comment end date 2026-10-16
Basic and safety principles for man-machine interface, marking and identification - Coding principles for indicators and actuators
EN 573-3:2026/prA1 Public enquiry
Comment end date 2026-10-17
Aluminium and aluminium alloys - Chemical composition and form of wrought products - Part 3: Chemical composition and form of products

This document specifies the chemical composition limits of wrought aluminium and wrought aluminium alloys and form of products. NOTE The chemical composition limits of aluminium and aluminium alloys specified herein are completely identical with those registered with the Aluminium Association, 1525, Wilson Boulevard, Suite 600, Arlington, VA 22209, USA, for the corresponding alloys.

prEN ISO 15110 Public enquiry
Comment end date 2026-11-12
Paints and varnishes - Artificial weathering including acidic deposition (ISO/DIS 15110:2026)

ISO 15110:2017 specifies a so-called acid dew and fog test (ADF test) as an accelerated laboratory test method for simulating, by the use of artificial acidic precipitation, the damaging effects of acidic atmospheric precipitation in association with UV radiation, neutral condensed precipitation, and changing temperature and humidity. This test method is intended to be used in evaluating, on the basis of relative performance rankings, the suitability of painted materials for use in outdoor environments with acidic precipitation. It is not intended to generate the same extent of damage or the same damage pattern as in outdoor weathering, but rather to give a ranking which is similar to that which would be obtained in outdoor weathering. The method produces damage which is more homogeneous, allows fewer specimens to be exposed (and hence more rapid testing) and enables evaluation of the exposed specimens to be carried out using methods which are more objective than visual assessment.

prEN IEC 63470:2026 New
Comment end date 2026-09-20
Guideline for gate oxide reliability and robustness evaluation procedures for silicon carbide power mosfets (Fast Track)
EN ISO 14020:2023/prA1 Public enquiry
Comment end date 2026-10-04
Environmental statements and programmes for products - Principles and general requirements - Amendment 1 (ISO 14020:2022/DAM 1:2026)
prEN IEC 62990-1:2026 Public enquiry
Comment end date 2026-10-16
Workplace atmospheres - Part 1: Gas detection equipment - Performance requirements of detectors for toxic gases
prEN 304 621 V1.0.5 (2026-08) Public enquiry
Comment end date 2026-10-27
Cyber Security (CYBER); CRA; Cybersecurity requirements for Network Management systems
prEN IEC 60086-5:2026 Public enquiry
Comment end date 2026-11-15
Primary batteries - Part 5: Safety of batteries with aqueous electrolyte
EN 50171:2021/prA1:2026 Public enquiry
Comment end date 2026-09-27
Central safety power supply systems

This document specifies the general requirements for central power supply systems for an independent energy supply to essential safety equipment. This standard covers systems that are permanently connected to AC supply voltages not exceeding 1 000 V and use batteries as an alternative power source. Central safety power supply systems are intended to ensure energy supply to emergency escape lighting in the event of normal supply failure and may be suitable for energizing other essential safety equipment, for example: – electric circuits of automatic fire extinguishing installations; – paging systems and signalling safety installations; – smoke extraction equipment; – carbon monoxide warning systems; – special safety installations related to specific buildings, e.g. high-risk areas. The power supply of CPS systems should be dedicated only to the essential safety equipment, and not for other type of loads such as general purpose IT or industrial systems etc. Combinations of the aforementioned safety equipment types are permitted together on the same central safety power supply system providing the availability for safety equipment loads is not impaired. A fault occurring in a circuit should not cause the interruption in any other circuit used to supply essential safety equipment. Schematic representations of typical central safety power supply equipment are depicted in Clause 4. Power supply systems for fire alarm equipment that are covered by EN 54 (series) are excluded.

prEN ISO 7396-1 Archived
Comment end date 2026-09-12
Medical gas pipeline systems - Part 1: Pipeline systems for compressed medical gases and vacuum (ISO/FDIS 7396-1:2026)

ISO 7396-1:2016 specifies requirements for design, installation, function, performance, testing, commissioning and documentation of pipeline systems used in healthcare facilities for the following: - oxygen; - nitrous oxide; - medical air; - carbon dioxide; - oxygen/nitrous oxide mixtures (see Note 1); - helium/oxygen mixtures; - (*) oxygen 93; - gases and gas mixtures classified as medical device, gases delivered to medical devices or intended for medical purposes or gases and gas mixtures for medicinal use not specified above; - air for driving surgical tools; - nitrogen for driving surgical tools; - vacuum. NOTE 1 Regional or national regulations may prohibit the distribution of oxygen/nitrous oxide mixtures in medical gas pipeline systems. NOTE 2 Anaesthetic gas scavenging disposal systems are covered in ISO 7396‑2. This part of ISO 7396 includes requirements for supply systems, pipeline distribution systems, control systems, monitoring and alarm systems and non-interchangeability between components of different gas/vacuum systems. This part of ISO 7396 specifies safety requirements for pipeline systems used in healthcare facilities, both public and private. It applies to all facilities providing healthcare services regardless of type, size, location or range of services, including, but not limited to: a) acute care healthcare facilities; b) internal patient continuing care healthcare facilities; c) long-term care facilities; d) community-based providers; e) ambulatory and external patient care clinics (e.g. day surgery, endoscopy clinics and doctors' offices). NOTE 3 This part of ISO 7396 may also be used as reference for pipeline systems for medical gases and vacuum intended to be installed in places other than healthcare facilities. ISO 7396-1:2016 applies to the following different types of oxygen supply systems: - supply systems in which all sources of supply deliver oxygen; in this case the concentration of the oxygen will be greater than 99%; - supply systems in which all sources of supply deliver oxygen 93; in this case the concentration of the oxygen may vary between 90% and 96%; NOTE 4 A mixture of oxygen 93 and oxygen may be delivered by a medical gas supply system. In this case the concentration of the gas can vary between 90% and >99%. ISO 7396-1:2016 also applies to: - extensions of existing pipeline distribution systems; - modifications of existing pipeline distribution systems; - modifications or replacement of supply systems or sources of supply. Oxygen concentrators for domiciliary use are excluded from the scope of this part of ISO 7396. NOTE 5 Requirements for oxygen concentrators for domiciliary use are specified in ISO 80601‑2-69. (*) EN 14931 defines additional requirements for hyperbaric application, in particular for flows and pressures of compressed air required to pressurize the hyperbaric chamber and to drive other connected services. Also included are requirements for oxygen and other treatment gases administered to patients. ISO 7396-1:2016 does not apply to vacuum systems intended to be used in dentistry. ISO 7396-1:2016 does not apply to filling systems for transportable cylinders and transportable cylinder bundle systems.

prEN IEC 62087-1:2026 Public enquiry
Comment end date 2026-10-18
Audio, video, and related equipment - Determination of power consumption - Part 1: General
prEN 302 977 V2.1.13 (2026-08) Public enquiry
Comment end date 2026-11-08
Satellite Earth Stations and Systems (SES); Vehicle-Mounted Earth Stations (VMES) operating in the 14/12 GHz frequency bands; Harmonised Standard for access to radio spectrum
prEN IEC 60598-2-3:2026 Public enquiry
Comment end date 2026-11-08
Luminaires - Part 2-3: Particular requirements - Luminaires for road and street lighting
ISO 15195:2018/DAmd 1 Public enquiry
Comment end date 2026-09-24
Laboratory medicine — Requirements for the competence of calibration laboratories using reference measurement procedures — Amendment 1
Total records found: 293
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