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Total records found: 293
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prEN 17754 New
Comment end date 2026-04-21
Inorganic fertilizers - Determination of specific micronutrients

This document specifies references to methods for the determination of the content of the following specific micronutrients in inorganic fertilizers: — the total boron content; — the total cobalt content; — the total copper and zinc content; — the total iron content; — the total manganese content; — total molybdenum content; — the water-soluble boron content; — the water-soluble cobalt content; — the water-soluble copper content; — the water-soluble iron content; — the water-soluble manganese content; — the water-soluble molybdenum content; — the water-soluble zinc content; — the sum of declared micronutrients in compound micronutrient fertilizers. This document is applicable to the fertilizing products blends where a blend is a mix of at least two of the following components: fertilizers, liming materials, soil improvers, growing media, inhibitors, plant biostimulants, and where the following category: inorganic fertilizers is the highest % in the blend by mass or volume, or in the case of liquid form by dry mass. If inorganic fertilizer is not the highest % in the blend, the European Standard for the highest % of the blend applies. In case a fertilizing product blend is composed of components in equal quantity, the user decides which standard to apply. Variations in analytical methods for fertilizing product blends can lead to differing results as some components or matrix interactions can affect the outcome. Validation procedures have shown that developed standard methods are robust and reliable across diverse product compositions, but possible interferences and unexpected results when analysing fertilizing product blends are possible. An overview of the references to methods for the determination of the specific micronutrients is given in Table 1.

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prEN IEC 61400-16:2026 Public enquiry
Comment end date 2026-06-03
Wind energy generation systems - Part 16: Standard format for sharing power curves and associated information
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prEN 14453 Public enquiry
Comment end date 2026-06-07
Devices to prevent pollution by backflow of potable water - Pipe interrupter with permanent atmospheric vent DN 10 to DN 20 - Family D, type C

This document specifies the field of application, the dimensional, the physico-chemical properties and the properties of general hydraulic, mechanical and acoustic design of pipe interrupters with permanent atmospheric vent family D Type C, intended to prevent pollution of potable water by backflow, caused by backsiphoning only. It is applicable to pipe interrupters with permanent atmospheric vent in denominations DN 10 up to DN 20. It covers pipe interrupters with permanent atmospheric vent of PN 10 that are capable of working without modification or adjustment: - at any pressure, up to 1 MPa (10 bar); - with any pressure variation, up to 1 MPa (10 bar); - in permanent duty at a limited temperature of 65 °C and for maximum 1 h at 90 °C. It specifies also the test methods and requirements for verifying their characteristics, the marking and the presentation at delivery. Backflow protection devices integrated in flushing valves are similar to DC and are not covered under this document. The requirements are stated in EN 12541.

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prEN IEC 62133-2:2026 Public enquiry
Comment end date 2026-05-08
Secondary cells and batteries containing alkaline or other non-acid electrolytes - Safety requirements for portable sealed secondary lithium cells, and for batteries made from them, for use in portable applications - Part 2: Lithium systems
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prEN ISO 5183-1 Public enquiry
Comment end date 2026-05-19
Resistance welding equipment - Electrode adaptors, male taper 1:10 - Part 1: Conical fixing, taper 1:10 (ISO/FDIS 5183-1:2026)
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prEN 10219-1 Public enquiry
Comment end date 2026-05-28
Cold formed welded steel structural hollow sections - Part 1: Technical delivery conditions

This document specifies the technical delivery conditions for electric welded and submerged arc welded cold formed structural steel hollow sections of circular, square, rectangular or elliptical forms and applies to structural hollow sections formed cold without subsequent heat treatment other than the heat treatment of the weld line. NOTE 1 The requirements for tolerances, dimensions and sectional properties in EN 10219-2. NOTE 2 The provisions that apply under the Construction Products Regulations (CPR) are specified in EN 10380. NOTE 3 The attention of users is drawn to the fact that whilst cold formed grades in this document can have equivalent mechanical properties to hot-finished grades in EN 10210-1 the sectional properties of square and rectangular hollow sections in EN 10219-2 and EN 10210-2 are not equivalent. NOTE 4 A range of steel grades is specified in this document and the user should select the grade most appropriate to the intended use and service conditions. The grades and mechanical properties, but not the final supply condition of cold formed hollow sections are generally comparable with those in EN 10025-2, EN 10025-3, EN 10025-4, EN 10025-5, EN 10025-6, EN 10149-2 and EN 10149-3.

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EN 50615:2015/prA1:2026 New
Comment end date 2026-06-24
Household and similar electrical appliances - Safety - Particular requirements for devices for fire prevention and suppression for electric hobs, and gas hobs having automatic burner control systems (cooktops)

This European standard deals with the safety of electric devices used for detection, prevention and suppression of fire originated: - from a cooking process, or - from flammable material left on the hob. NOTE The provisions of this document, duly adapted to the specific installation and conditions of use, may be taken into consideration as guidance also for the protection from fire originated from the use of portable cooking appliances or from grills in the oven cavity. The devices covered by this European Standard may operate by interaction with, or integration of, other devices such as smoke detectors, fire detectors, motion detectors, CO detectors and fire extinguishers that are covered by their specific applicable standards.

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prEN 16914 Archived
Comment end date 2026-04-19
Aluminium and aluminium alloys - Hot-rolled armour plates in weldable aluminium alloy - Technical delivery conditions

This document specifies the technical delivery conditions for weldable aluminium alloy plates for armour applications with a nominal thickness between 10 mm and 70 mm for ARAL1 material and between 10 mm and 80 mm for ARAL2 material.

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prEN 10250-3 Public enquiry
Comment end date 2026-05-14
Open die steel forgings for general engineering purposes - Part 3: Alloy special steels

This document specifies the technical delivery requirements for open die forgings, forged bars and products pre-forged and finished in ring rolling mills, manufactured from alloy special steel and supplied in the quenched and tempered condition. The majority of steels listed in this document are identical to steels specified in EN ISO 683-1 and EN ISO 683-2 and more extensive information on hardenability and technological properties is given in these standards. General information on technical delivery conditions is given in EN 10021.

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prEN IEC 60598-2-12:2026 Public enquiry
Comment end date 2026-05-20
Luminaires - Part 2-12: Particular requirements - Mains socket-outlet mounted nightlights
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EN 50716:2023/prA1:2026 Public enquiry
Comment end date 2026-06-05
Railway Applications - Requirements for software development

The amendment will address misunderstandings on provisions for AI/ML by providing additional guidance and clarifications without changing the fundamental technical requirements and recommendations of the standard. The amendment and its limitation to broadly editorial changes is based on following considerations: • Limited Standardization for AI: While AI/ML holds promise for various applications, current standardization efforts specific to AI/ML in safety-critical domains like railway are still in their early stages. This lack of mature and widely accepted standards for verifying and validating AI/ML systems in these contexts makes it challenging to reference or directly incorporate such technologies into the scope of EN 50716 (with less restrictive provisions) at this time. • Promoting Flexibility and Innovation: By clarifying the existing provisions and adding guidance without imposing new requirements, the amendment allows for flexibility and encourages developers to explore the potential of AI/ML (where is safe to do so). The following areas have already been identified by WG28 for the amendment: • Explicitly remind the scope of Table A.3: State that the table's techniques and measures are primarily intended for the design of the software architecture for safety-related functions (e.g. does not strictly apply to support tools). • Provide guidance on AI/ML usage: Explicitly acknowledge the potential of AI/ML in non-safety-critical areas and offer examples of possible applications (complementary to current recommendation for Basic Integrity, “-”, in Table A.3 for 13. Artificial Intelligence and Machine Learning). • Guidance on Support Tools: Ensure a consistent understanding of the AI/ML provisions related to support tools (& programming languages). This represent current view on potential changes - other areas may be identified during the amendment drafting, keeping into account the above mentioned limitations to broadly editorial changes.

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prEN ISO 9308-2 Public enquiry
Comment end date 2026-06-13
Water quality - Enumeration of Escherichia coli and coliform bacteria - Part 2: Most probable number method (ISO/DIS 9308-2:2026)

This document specifies a method for the enumeration of E. coli and coliform bacteria in water. The method is based on the growth of target organisms in a liquid medium and calculation of the “Most Probable Number” (MPN) of organisms by reference to MPN tables or by use of appropriate formulae 1]. This method can be applied to a range of types of water (for example drinking water, groundwater, surface water, recreational water and wastewater),[2-5] including those containing a considerable amount of suspended matter and high background counts of heterotrophic bacteria. Users should satisfy themselves that any product used has been validated for its intended use (e.g. chlorinated drinking water) and should generate performance characteristics using ISO13843.[6] Performance characteristic data generated prior to 2017 using ISO TR 13843[7] is also acceptable. If a water sample has some background colour, the incubated sample should be compared to a blank control of the same water sample This method relies upon the detection of E. coli based upon expression of the enzyme β‑D‑glucuronidase and consequently does not detect some enteropathogenic strains of E. coli, which do not typically express this enzyme. Additionally, there are a small number of other E. coli strains that do not express β‑D‑glucuronidase. As they are β‑D‑galactosidase positive, they will appear as coliform bacteria.

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prEN IEC 63418:2026 Public enquiry
Comment end date 2026-05-20
Fixed accessories intended for household and similar purposes that supply power through an interface
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prEN ISO 3826-3 Archived
Comment end date 2026-04-16
Plastics collapsible containers for human blood and blood components - Part 3: Blood bag systems with integrated features (ISO/DIS 3826‑3:2026)

ISO 3826-3:2006 specifies requirements, including performance requirements, for integrated features on plastic, collapsible, non-vented, sterile containers (blood bag systems). The integrated features refer to: leucocyte filter; pre-donation sampling device; top and bottom bag; platelet storage bag; needle stick protection device. In addition to ISO 3826-1:2003, which specifies the requirements of conventional containers, ISO 3826-3:2006 specifies additional requirements for blood bag systems using multiple units. Unless otherwise specified, all tests specified in ISO 3826-3:2006 apply to the plastic container as prepared ready for use.

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EN IEC 62443-4-1:2018/prAA:2026 Public enquiry
Comment end date 2026-05-20
Security for industrial automation and control systems - Part 4-1: Secure product development lifecycle requirements

This document specifies process requirements for the secure development of products used in industrial automation and control systems. It defines a secure development life-cycle (SDL) for the purpose of developing and maintaining secure products. This life-cycle includes security requirements definition, secure design, secure implementation (including coding guidelines), verification and validation, defect management, patch management and product end-of-life. These requirements can be applied to new or existing processes for developing, maintaining and retiring hardware, software or firmware for new or existing products. These requirements apply to the developer and maintainer of the product, but not to the integrator or user of the product. A summary list of the requirements in this document can be found in Annex B.

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prEN IEC 60876-1:2026 Public enquiry
Comment end date 2026-05-15
Fibre optic interconnecting devices and passive components - Fibre optic spatial switches - Part 1: Generic specification
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prEN 50388-1:2026 Public enquiry
Comment end date 2026-06-05
Fixed installations and rolling stock for railway applications - Technical criteria for the coordination between electric traction power supply systems and rolling stock to achieve interoperability - Part 1: General

This document establishes requirements for the electrical aspects to achieve technical compatibility between rolling stock and electric traction systems, limited to: - co-ordination of protection principles between power supply and traction units, i.e. separation sections, train set current or power limitation, short circuit current discrimination, circuit breaker coordination and use of regenerative braking; - co-ordination of installed power on the line and the power demand of trains, i.e. traction unit power factor, train set current or power limitation, electric system performance, type and characterization; - compatibility assessment relating to harmonics and dynamic effects. Informative values are given for some parts of the existing European railway networks, in annexes. NOTE For those railways within the scope of EU Interoperability Directive, definitive values are set out in the register of infrastructure published in accordance with Article 49 of Directive (EU) 2016/797, and the list of items included in the register is described in the commission decision (EU) 2019/777. The following electric traction systems are within the scope of this document: - railways; - guided mass transport systems that are integrated with railways; - material transport systems that are integrated with railways. Information is given on electrification parameters to enable train operating companies to confirm, after consultation with the rolling stock manufacturers, that risks of non-compatibility are minimized and that there will be no consequential disturbance on the electrification system. The interaction between pantograph and overhead contact line is dealt with in EN 50367:2020. The interaction with the control-command and signalling subsystem is not dealt with in this document. Basic considerations have been included concerning the use of traction units with onboard electric traction energy storage in the electric traction power system. Details of this are dealt with in CLC/TS 50729:2025.

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prEN IEC 60335-2-25:2026 Public enquiry
Comment end date 2026-06-17
Household and similar electrical appliances - Safety - Part 2-25: Particular requirements for microwave ovens, including combination microwave ovens

This European Standard deals with the safety of microwave ovens for household and similar use, their rated voltage being not more than 250 V.

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prEN ISO 17254 Archived
Comment end date 2026-04-07
Dentistry - Coiled springs for use in orthodontics (ISO/DIS 17254:2026)

ISO 17254:2016 applies to coiled springs for use in orthodontic appliances. It gives details of methods to compare the physical and mechanical properties of coiled springs, the test methods by which they can be determined, as well as packaging and labelling requirements.

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EN 673:2024/prA1 New
Comment end date 2026-04-21
Glass in building - Determination of thermal transmittance (U value) - Calculation method

This document specifies a calculation method to determine the thermal transmittance of glass with flat and parallel surfaces. This document applies to uncoated glass (including glass with structured surfaces, e.g. patterned glass), coated glass and materials not transparent in the far infrared which is the case for soda lime glass products, borosilicate glass, glass ceramic, alkaline earth silicate glass and alumino silicate glass. It applies also to multiple glazing comprising such glasses and/or materials. It does not apply to multiple glazing which include in the gas space sheets or foils that are far infrared transparent. The procedure specified in this document determines the U value (thermal transmittance) in the central area of glazing. The edge effects due to the thermal bridge through the spacer of an insulating glass unit or through the window frame are not included. Furthermore, energy transfer due to solar radiation is not taken into account. The effects of Georgian and other bars are excluded from the scope of this document. NOTE EN ISO 10077 1:2017 provides a methodology for calculating the overall U value of windows, doors and shutters [1], taking account of the U value calculated for the glass components according to this document. Also excluded from the calculation methodology are any effects due to gases that absorb infrared radiation in the 5 to 50 µm range. The primary purpose of this document is product comparison, for which a vertical position of the glazing is specified. In addition, U values are calculated using the same procedure for other purposes, in particular for predicting: - heat loss through glass; - conduction heat gains in summer; - condensation on glass surfaces; - the effect of the absorbed solar radiation in determining the solar factor [2]. Reference can be made to [3], [4] and [5] or other European Standards dealing with heat loss calculations for the application of glazing U values determined by this standard. Reference can be made to [6] for detailed calculations of U values of glazing, including shading devices. Vacuum Insulating Glass (VIG) is excluded from the scope of this document. For determination of the U value of VIG, please refer to EN 674 or ISO 19916-1. A procedure for the determination of emissivity is given in EN 12898. The rules have been made as simple as possible consistent with accuracy.

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ISO/DIS 25782 Public enquiry
Comment end date 2026-05-03
Carbon fixation rate in farmed photosynthetic microalgae — methods for sampling and analysis
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prEN IEC 61969-3:2026 Public enquiry
Comment end date 2026-05-22
Mechanical structures for electrical and electronic equipment - Outdoor enclosures - Part 3: Environmental requirements, tests and safety aspects
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prEN ISO 4254-18 Public enquiry
Comment end date 2026-06-08
Agricultural machinery - Safety - Part 18: Forage loader wagons and forage transport wagons (ISO/DIS 4254-18:2026)

This document, intended to be used together with ISO 4254-1, specifies the safety requirements and their verification for the design and construction of — trailed forage loader wagons, — trailed forage cutter-loader wagons, — trailed forage transport wagons, — silage and forage body intended to be affixed to a carrier vehicle, — trailers with a load push/push-off device, slats or alternating moving floor which is intended for the use by only one person (operator). In addition, it specifies the type of information on safe working practices including residual risks to be provided by the manufacturer. This document is not applicable to: — self-propelled forage loader wagons, self-propelled forage cutter loader wagons and self-propelled forage transport wagons, — trailers with a tipping body, balanced or semi-mounted, used in agriculture.

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prEN ISO 16484-5 Public enquiry
Comment end date 2026-06-09
Building automation and control systems (BACS) - Part 5: Data communication protocol (ISO/DIS 16484-5:2026)

The purpose of this document is to define data communication services and protocols for computer equipment used for monitoring and control of HVAC&R and other building systems and to define, in addition, an abstract, object-oriented representation of information communicated between such equipment, thereby facilitating the application and use of digital control technology in buildings.

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prEN ISO 23401-3 Archived
Comment end date 2026-04-07
Dentistry - Denture lining materials - Part 3: Soft type materials for long-term use (ISO/DIS 23401-3:2026)

This document specifies requirements for soft type denture lining materials suitable for long-term use and the test methods to determine compliance with these requirements. This document also specifies requirements for packaging, marking the products and for the instructions for use to be supplied by the manufacturer. These materials may also be used for maxillofacial prostheses. This document is not applicable to hard type denture lining materials or soft type denture lining materials for short-term use.

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Total records found: 293
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