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prEN ISO 23696-2 Public enquiry
Comment end date 2025-10-28
Water quality - Determination of nitrate in water using small-scale sealed tubes - Part 2: Chromotropic acid colour reaction (ISO 23696-2:2023)

This document specifies a method for the determination of nitrate as NO3-N in water of various origin such as natural water (including groundwater, surface water and bathing water), drinking water and wastewater, in a measuring range of concentration between 0,20 mg/l and 30 mg/l of NO3-N using the small-scale sealed tube method. Different measuring ranges of small-scale sealed tube methods can be required. The measuring ranges can vary depending on the type of the small-scale sealed tube method of different manufacturers. It is up to the user to choose the small-scale sealed tube test with the appropriate application range or to adapt samples with concentrations exceeding the measuring range of a test by preliminary dilution. NOTE 1 The results of a small-scale sealed tube test are most precise in the middle of the application range of the test. Manufacturers' small-scale sealed tube methods are based on chromotropic colour reaction, depending on the typical operating procedure of the small-scale sealed tube used, see Clause 9. NOTE 2 Laws, regulations or standards can require that the data is expressed as NO3 after conversion with the stoichiometric conversion factor 4,426 81 in Clause 11. NOTE 3 In the habitual language, use of sewage treatment and on the displays of automated sealed-tube test devices, NO3 without indication of the negative charge has become the common notation for the parameter nitrate and especially for the parameter nitrate-N. This notation is adopted in this document even though not being quite correct chemical nomenclature.

prEN IEC 63550-3:2025 Public enquiry
Comment end date 2025-11-12
Semiconductor devices - Neuromorphic devices - Part 3: Evaluation method of spike dependent plasticity in memristor devices
prEN 13157 Public enquiry
Comment end date 2025-12-18
Cranes - Safety - Hand powered cranes

This document specifies requirements for the following hand powered cranes defined in Clause 3: - hand chain blocks; - lever hoists; - jaw winches; - hand powered trolleys supporting lifting machines; NOTE Hand powered trolleys placed on the market on their own and intended to be used with products within the scope of this document are considered as interchangeable equipment as defined in Directive 2006/42/EC. - drum winches; - pulley blocks. This document deals with the following significant hazards, hazardous situations or hazardous events relevant to hand powered cranes, when it is used as intended and under conditions of misuse which are reasonably foreseeable by the manufacturer: - mechanical hazards; - thermal hazards; - material/substance hazards; - ergonomic hazards; - hazards associated with the environment in which they are used. This document does not cover hazards related to the lifting of persons. This document is not applicable to hand powered cranes for: - use in ambient temperature outside the range of - 10°C to + 50°C, however for some lifting medium the minimum temperature will be higher than −10 °C; - use in direct contact with food stuffs or pharmaceuticals requiring a high level of cleanliness for hygiene reasons; - handling specific hazardous materials (e.g. explosives, hot molten masses, radiating materials); - operation in an explosive atmosphere. This document is not applicable to hand powered cranes manufactured before the date of its publication.

prEN 18246 Archived
Comment end date 2025-10-21
Digital product passport - Data authentication, reliability and integrity

This document defines the requirements and frameworks for secure information processing and communication to safeguard integrity, authenticity and reliability in the digital product passport (DPP) data exchange, minimizing product fraud and counterfeiting through data verification and integrity enforcement mechanisms. This document provides a framework for establishing trust, interoperability, and interoperation via secure electronically signed data construct (ESDC) for multi-actor applications, applicable across various sectors and in multilingual environments. Existing hardware and software systems for unique product identification and storage of this identification are to be considered. The following is out of the scope of this document: system architecture for DPP, DPP use cases, secure elements related to data carriers and cryptographic security features for unique product identifiers. NOTE 1 While not disrupting existing traceability and authentication systems, this document facilitates interoperability by introducing an ESDC scheme to be combined with existing data constructs to cover and preserve existing data models. NOTE 2 Annex A includes illustrative examples and references to supporting implementations, intended to demonstrate approaches that promote interoperability across diverse environments. These references are provided to assist stakeholders in selecting appropriate solutions that comply with applicable legal obligations and technical standards, while preserving existing systems.

prEN 18225 Public enquiry
Comment end date 2025-11-11
Feather and down - Composition labelling of processed feathers and down blended with other materials for filling purposes

This document establishes provisions for the composition labelling of the components of fillings containing both plumage and non-plumage materials. It is applicable to feathers and down, blended with other materials, used as fillings of manufactured articles at each stage in their commercial distribution. This document is applicable for fillings totally containing more than 2 % of non-plumage materials. This document is not applicable for fillings totally containing more than 5 % of foreign matter (see 3.7).

prEN IEC 63058:2025 Public enquiry
Comment end date 2025-11-26
Switchgear and controlgear and their assemblies for low voltage - Environmental aspects
prEN IEC 62705:2025 Public enquiry
Comment end date 2025-12-17
Nuclear facilities - Instrumentation and control important to safety – Radiation monitoring systems (RMS): Characteristics and lifecycle

IEC 62705:2022 gives requirements for the lifecycle management of radiation monitoring systems (RMS) and gives guidance on the application of existing IEC standards covering the design and qualification of systems and equipment. The purpose of this document is to lay down requirements for the lifecycle management of RMSs and give application guidance. This document is intended to be consistent with the latest versions of International Standards dealing with radiation monitors, sampling of radioactive materials, instruments calibration, hardware and software design, classification, and qualification. This document is applicable to RMSs installed in nuclear facilities intended for use during normal operation, anticipated operational occurrences (AOO), design basis accidents (DBA) and design extension conditions (DEC), including severe accidents (SA). This second edition cancels and replaces the first edition published in 2014. This edition includes the following significant technical changes with respect to the previous edition: - modification of the title. - to be consistent with the categorization of the accident condition. - to update the references to new standards published since the first edition. - to update the terms and definitions.

prEN IEC 63554:2025 Public enquiry
Comment end date 2025-10-29
LED lamps - Safety requirements
prEN ISO 24181-1 Archived
Comment end date 2025-10-21
Rare earth - Determination of non-rare earth impurities in individual rare earth metals and their oxides - ICP-AES - Part 1: Analysis of Al, Ca, Mg, Fe and Si (ISO 24181-1:2024)

This document describes procedures for the determination of non-rare earth impurities in individual rare earth metals and their oxides through the use of inductively coupled plasma atomic emission spectroscopy (ICP-AES). Magnesium (Mg), aluminum (Al), silicon (Si), calcium (Ca) and iron (Fe) are included as non- rare earth impurity elements, and the measurement ranges for each impurity element are specified. The applicable measurement range (mass fraction %) of magnesium, aluminum, silicon and calcium is from 0,001 to 0,2, and that of iron is from 0,001 to 0,5. The verified measurement ranges in the interlaboratory tests are described later in this document.

prEN IEC 61249-2-54:2025 Public enquiry
Comment end date 2025-11-12
Materials for printed boards and other interconnecting structures - Part 2-54: Reinforced base materials clad and unclad - Halogenated modified or unmodified resin system, woven e-glass laminate sheets of defined dissipation factor (less than 0,005 at 10 GHz) and flammability (vertical burning test), copper-clad for high speed applications
prEN ISO 16958 Public enquiry
Comment end date 2025-11-25
Milk, milk products, infant formula and adult nutritionals - Determination of fatty acids composition - Capillary gas chromatographic method (ISO/FDIS 16958:2025)

ISO 16958:2015 specifies a method for the quantification of individual and/or all fatty acids in the profile of milk, milk products, infant formula and adult nutritional formula, containing milk fat and/or vegetable oils, supplemented or not supplemented with oils rich in long chain polyunsaturated fatty acids (LC-PUFA). This also includes groups of fatty acids often labelled [i.e. trans fatty acids (TFA), saturated fatty acids (SFA), monounsaturated fatty acids (MUFA), polyunsaturated fatty acids (PUFA), omega-3, omega-6 and omega-9 fatty acids] and/or individual fatty acids [i.e. linoleic acid (LA), α-linolenic acid (ALA), arachidonic acid (ARA), eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA)]. The determination is performed by direct transesterification in food matrices, without prior fat extraction, and consequently it is applicable to liquid samples or reconstituted powder samples with water having total fat ≥ 1,5 % m/m. The fat extracted from products containing less than 1,5 % m/m fat can be analysed with the same method after a preliminary fat extraction using methods referenced in Clause 2. Dairy products, like soft or hard cheeses with acidity level ≤ 1 mmol/100 g of fat, can be analysed after a preliminary fat extraction using methods referenced in Clause 2. For products supplemented or enriched with PUFA with fish oil or algae origins, the evaporation of solvents should be performed at the lowest possible temperature (e.g. max. 40 °C) to recover these sensitive fatty acids.

prEN ISO 16634-2 Public enquiry
Comment end date 2025-12-16
Food products - Determination of the total nitrogen content by combustion according to the Dumas principle and calculation of the crude protein content -Part 2: Cereals, pulses and cereal coproducts (ISO/DIS 16634-2:2025)

ISO 16634-2:2016 specifies a method for the determination of the total nitrogen content and the calculation of the crude protein content of cereals, pulses and milled cereal products. This method, like the Kjeldahl method (see References [1] and [6]), does not distinguish between protein nitrogen and non-protein nitrogen. For the calculation of the protein content, various conversion factors are used (see 3.2).

prEN 50625-1:2025 Public enquiry
Comment end date 2025-12-19
Collection, logistics & treatment requirements for WEEE - Part 1: General treatment requirements

This document sets general requirements for the treatment of waste electrical and electronic equipment (WEEE) except for preparing for re-use. The requirements for the treatment process preparing for re-use are described in EN 50614:2020. This document is supplemented, for example by standards covering specific equipment. NOTE 1 This document is intended to cover WEEE arising from electrical and electronic equipment as listed under Annex III of Directive 2012/19/EU. NOTE 2 For the purposes of this document, treatment includes recovery or disposal operations, including preparation prior to recovery or disposal. This document addresses all operators involved in the treatment including related handling, sorting, and storage of WEEE. This document applies to operators processing WEEE and non-WEEE at the same facility and in the same process, regardless the size of the WEEE-related activities.

EN ISO 80601-2-13:2022/prA1 Public enquiry
Comment end date 2025-11-25
Medical electrical equipment - Part 2-13: Particular requirements for basic safety and essential performance of an anaesthetic workstation - Amendment 1 (ISO 80601-2-13:2022/DAM 1:2025)
prEN 300 386 V3.0.0 (2025-08) Public enquiry
Comment end date 2025-10-27
Telecommunication network equipment; Harmonised Standard for ElectroMagnetic Compatibility (EMC) requirements
prEN ISO 6346 Public enquiry
Comment end date 2025-11-11
Freight containers - Coding, identification and marking (ISO/DIS 6346:2025)

1.1 This document provides a system for the identification and presentation of information about freight containers. The identification system is intended for general application, for example in documentation, control and communications (including automatic data processing systems), as well as for display on the containers themselves. The methods of displaying identification and certain other data (including operational data) on containers by means of permanent marks are included. 1.2 This document specifies: a) a container identification system, with an associated system for verifying the accuracy of its use, having: — mandatory marks for the presentation of the identification system for visual interpretation, and — features to be used in optional Automatic Equipment Identification (AEI) and electronic data interchange (EDI); b) a coding system for data on container size and type, with corresponding marks for their display; c) operational marks, both mandatory and optional; d) physical presentation of marks on the container. 1.3 All markings not denoted as ‘optional’ shall be considered mandatory. The terms “mandatory” and “optional” in this document are used to differentiate those ISO marking provisions which shall necessarily be fulfilled by all containers from those which are not required of all containers. The optional marks are included to further comprehension and promote uniform application of the optional mark. If a choice has been made to display an optional mark, the provisions laid down in this document relating to the mark shall be applied. The terms “mandatory” and “optional” do not refer to requirements of any regulatory body. 1.4 This document applies to all freight containers covered by International Standards ISO 668, parts 1 to 5 of ISO 1496, ISO 8323 and should, wherever appropriate and practicable, be applied: — to containers other than those covered by the International Standards mentioned in Clause 2; — to container-related and/or detachable equipment. NOTE 1 Containers marked according to previous editions of ISO 6346 need not be re-marked. 1.5 This document does not cover temporary operational marks of any kind, permanent marks, data plates, etc. which may be required by intergovernmental agreements, national legislation or nongovernmental organizations. NOTE 2 Some of the major international conventions whose container-marking requirements are not covered in this document are as follows: — International Convention for Safe Containers (1972, as amended) (CSC), International Maritime Organization (IMO); — Customs Convention on Containers 1956 and 1972, related to temporary admission and transport under customs seal. — Convention on Temporary Admission (Istanbul, 26 June 1990), related to temporary admission. It should not be assumed that this list is exhaustive. This document does not cover the display of technical data on tank containers (see ISO 1496-3), nor does it, in any way, include identification marks or safety signs for items of cargo which may be carried in freight containers.

PrLST 1581 Public enquiry
Comment end date 2025-11-28
Buckwheat. Requirements for purchase and supply

Šiame Lietuvos standarte pateikiami superkamų ir tiekiamų grikių – vienmečių medingųjų javų (Fagopyrum sagittatum, Fagopyrum esculentum) (toliau – grikiai), supirkimo ir tiekimo reikalavimai.

prEN 40000-1-2 Public enquiry
Comment end date 2025-12-14
Cybersecurity requirements for products with digital elements - Part 1-2: Principles for cyber resilience

This document specifies general cybersecurity principles and general risk management activities for all products with digital elements, hereafter also referred to as 'products'. This document covers every stage of the product lifecycle to ensure and maintain an appropriate level of cybersecurity based on the risks. This document also provides generic elements to support the development of coherent product-category-specific standards (vertical standards). This document: — establishes generic cybersecurity principles applicable to all stages of the product lifecycle; — specifies requirements for risk assessment and treatment of cybersecurity risks; — specifies requirements on activities that can be applied to ensure an appropriate level of cybersecurity at every phase of the product lifecycle; — provides elements and considerations for product category specific standards in order to facilitate a harmonized approach. This document does not provide vertical product category specific activities and elements.

prEN IEC 60794-1-135:2025 Archived
Comment end date 2025-10-15
Optical fibre cables - Part 1-135: Generic specification - Basic optical cable test procedures - Mechanical tests methods - Sheave test, Method E35
prEN IEC 62109-2:2025 Public enquiry
Comment end date 2025-10-29
Safety of power converters for use in photovoltaic power systems - Part 2: Particular requirements for inverters
prEN IEC 63187-1:2025 Public enquiry
Comment end date 2025-11-12
Systems engineering - System safety - Complex systems in defence programmes Part 1 - Concepts, terminology and requirements
prEN 13832-1 Public enquiry
Comment end date 2025-11-27
Footwear protecting against chemicals - Part 1: Terminology and test methods

This document specifies test methods for the determination of the resistance of footwear against selected chemicals for the following circumstances: splashing, degradation, and permeation.

prEN 12939 Public enquiry
Comment end date 2025-12-18
Thermal performance of building materials and products - Determination of thermal resistance by means of guarded hot plate and heat flow meter methods - Thick products of high and medium thermal resistance

This document specifies procedures to determine the thermal resistance of products whose thicknesses exceed the maximum thickness for guarded hot plate or heat flow meter apparatus. Most of the procedures described in this standard require apparatus that allows tests on specimens up to 100 mm thick . This document gives guidelines to assess the relevance of the thickness effect, i.e. to establish whether the thermal resistance of a thick product can or cannot be calculated as the sum of the thermal resistances of slices cut from the product, these guidelines complement the indications given in ISO 8302:1991[1] on the guarded hot plate apparatus. This document describes testing conditions which prevent the onset of convection which could take place in some products under the considered temperature differences and thicknesses.

prEN ISO 16911-1 Archived
Comment end date 2025-10-14
Stationary source emissions - Manual and automatic determination of velocity and volume flow rate in ducts - Part 1: Manual reference method (ISO/DIS 16911-1:2025)

This document specifies a method for periodic determination of the axial velocity and volume flow rate of gas within emissions ducts and stacks. It is applicable for use in circular or rectangular ducts with measurement locations meeting the requirements of ISO 15259. Minimum and maximum duct sizes are driven by practical considerations of the measurement devices described within this document. NOTE ISO 15259 is identical to EN 15259[12]. This document requires all flow measurements to have demonstrable metrological traceability to national or international primary standards. This document applies to a range of monitoring objectives with different uncertainty requirements, ranging from very stringent (Emission Trading Schemes and calibration of automated flow measuring systems) to less demanding (support of isokinetic sampling). The level of quality control within this document is determined by the uncertainty requirements of the monitoring objective. Monitoring objectives are grouped based on the required quality control. The document specifies which requirements and performance characteristics apply to specified measurement objectives and application areas. The methods specified in this document can be used as a standard reference method, if the user demonstrates that the performance characteristics of the methods are equal to or better than the performance criteria specified in this document and that the expanded uncertainty of the measurement results obtained by the methods, expressed with a level of confidence of 95 %, is determined and reported. The results for each method defined in this document have different uncertainties within a range of 1 % to 10 % at flow velocities of 20 m/s. Other methods can be used provided that the user can demonstrate equivalence, e.g. based on the principles of EN 14793[11].

prEN 62675:2025 Public enquiry
Comment end date 2025-10-29
Secondary cells and batteries containing alkaline or other non-acid electrolytes - Sealed nickel-metal hydride prismatic rechargeable cells and batteries for use in industrial applications.
Total records found: 250
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