Latest Standards, Engineering Specifications, Manuals and Technical Publications

This document applies to photovoltaic (PV) system components and communication networks supporting the communication of the DC shutdown equipment using power line communication.
This document defines how to propagate the operational state of the entire PV system (normal / shutdown) to the individual power production components comprising the PV system. The document also describes requirements and constraints associated with power line communication networks that are used to support this application.
NOTE 1 It is possible to have systems communicating in different ways to the method covered in this document.
E.g., in systems where all components of the PLC communication are from the same manufacturer. For those systems this document does not apply.
NOTE 2 Not included in the scope of this document are requirements for DC shutdown initiator mechanism, disconnection and de-energization.
NOTE 3 This document does not address whether DC shutdown is required or not.
NOTE 4 EMC requirements are not included in this document.

The CEN 16157 multipart standard specifies and defines component aspects supporting the shared use of data and information in the field of traffic and travel. The component aspects include the modelling approach, the data content, the data structure and relationships and the communications specification.
This document defines a mapping from UML models, compliant with EN 16157-1, into JavaScript Object Notation (JSON) using JSON Schema as specified in draft 2020-12 and subsequent versions.
The schema mapping conforms to the JSON format defined by the Internet Engineering Task Force (IETF) in RFC 8259.
In the context of describing generation of schema, this refers to the webtool made available as part of the CEN 16157 multipart standard, which can generate the JSON schema mapping specified in this document.

This document establishes the air interface for radio frequency identification (RFID) devices operating in the 860 MHz to 930 MHz industrial, scientific and medical (ISM) band used in item management applications. This document specifies a common technical specification for RFID devices that can be used to develop standards for applications using this radio identification (RAIN) air interface. This document is intended to improve compatibility and encourage inter-operability of products for the growing RFID market in the international marketplace. This document establishes the forward and return link parameters for technical attributes including, but not limited to, operating frequency, operating channel accuracy, occupied channel bandwidth, maximum effective isotropic radiated power (EIRP), spurious emissions, modulation, duty cycle, data coding, bit rate, bit rate accuracy, bit transmission order, and, where appropriate, operating channels, frequency hop rate, hop sequence, spreading sequence, and chip rate. This document further specifies the communications protocol used in the air interface. This document describes the physical and logical requirements for a passive backscatter, Interrogator-talks-first (ITF), radio frequency identification system operating in the 860 MHz to 930 MHz frequency range. This document specifies: physical interactions (the signalling layer of the communication link) between Interrogators and Tags; logical operating procedures and commands between Interrogators and Tags; the collision arbitration scheme used to identify a specific tag in a multiple-tag environment; optional security commands that allow the use of crypto suites of ISO/IEC 29167-1:2014.

The present document is composed of the following data packages:
— Indicators;
— Reusable components;
— Explicit frames for statistics
— Query.
This document itself is composed of the following parts:
— main document representing the conceptual foundations and corresponding data model (normative);
— Annex A containing the data dictionary and attribute tables, i.e. the list of all the concepts presented in the main document together with their definitions (normative);
— Annex B presenting the model evolution (informative);
— Annex C, providing details of the significant technical changes between this document and EN 12896-8:2019 (informative)

This document specifies requirements for process development for forming, sealing and assembly of packaging for medical devices to be terminally sterilized, when utilizing heat sealing technologies.
This document recommends minimum heat sealing equipment features to support subsequent validation, process control and monitoring.
This document applies to both preformed sterile barrier systems and sterile barrier systems.
This document utilizes the sterile barrier system specification to develop the process specification using the principles of risk management.
This document is intended to be used prior to process validation.
NOTE            ISO 11607-2 provides requirements for process specification and process validation.

The OpRa scope is the definition of a minimum set of Public Transport raw data needed to enable PT quantitative analysis.
OpRa does not go into the domain of service quality measurement and reporting: service quality analysis will use data provided by OpRa, but quality definition remains a contractual level issue between a Public Transport Authority and a Public Transport Operator or an operator’s internal choice for a purely private service. OpRa reports unbiased actual data (i.e. measured or observed), described and aggregated in a shared and understandable way.
OpRa focuses mainly on observed/measured and registered information, i.e. information which cannot be changed anymore in the future. This information is mainly an output of the domain “operations monitoring & control" as defined by Transmodel.
Based on the actual service, including delays and cancelled vehicle journeys, etc., OpRa considers the recorded reality of operation, either through individual observed and registered data at a given sampling interval (raw data) or in an aggregate way (indicators) and provides the data exchange format.
The approach documented in detail in this document is coherent with EU Directive 2010/40. It relates to the Article 4 of the Delegated Regulation EU 2017/1926 [16], as regards the historic data. OpRa proposes to complement NeTEx (dedicated to the static scheduled information), for the historic data, based on the underlying conceptual data reference model Transmodel EN 12896, similarly to the requirement of the Delegated Regulation EU 2017/1926 referring to the static scheduled information2.

IEC 61851-23:2023 applies to the EV supply equipment to provide energy transfer between the supply network and electric vehicles (EVs), with a rated maximum voltage at side A of up to 1 000 V AC or up to 1 500 V DC and a rated maximum voltage at side B up to 1 500 V DC.
This document specifies the EV supply equipment of system A, system B and system C as defined in Annex AA, Annex BB and Annex CC. Other systems are under consideration.
This document provides the requirements for bidirectional power transfer (BPT) EV supply equipment for system A, with a rated maximum voltage at side A up to 1 000 V AC or 1 500 V DC. The requirements for reverse power transfer (RPT) and BPT for system B and system C are under consideration and are not specified in this document.
This second edition cancels and replaces the first edition published in 2014. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) the structure has been rearranged according to IEC 61851-1:2017;
b) electrical safety requirements in Clause 8 and Clause 12 have been revised based on the requirements in IEC 62477-1 and inspired by the hazard based safety approach of IEC 62368-1;
c) test methods for checking conformity to the stated requirements have been mostly added; general provisions for compliance tests have been specified in Clause 102;
d) specific requirements and/or information for the following functions have been added: energy transfer with thermal management system (101.2), bi-directional power transfer control (Annex DD), multi- side B separated EV supply equipment (Annex FF), and communication and energy transfer process (Annex GG);
e) Annex AA (system A), Annex BB (system B) and Annex CC (system C) have been updated including additions in conjunction with b) and c). This document has been limited to be applicable to system A, system B and system C;
f) the former Annex DD and Annex EE have been deleted. A new Annex EE, with the requirements for the artificial test load, has been added.
g) a new informative annex for the touch current and the touch impulse current (Annex HH) has been added

This document specifies restoration by electric arc welding and is limited to the head of the rails only.
This document describes the approval systems for consumables and procedures used in manual metal arc and flux cored metal deposit rail repair welding. This document includes the quality-related tasks and responsibilities of personnel involved in the electric arc repair welding of rails. This document applies to plain rail and switches and crossings manufactured from new Vignole railway rails R200, R220, R260, R260Mn, and R350HT grades rails of 27 kg/m and above as contained in EN 13674-1, EN 13674-2 and EN 13674-4.
The permitted welding processes are limited to Electric Arc (EA) in accordance with EN ISO 4063 and are by description Process No 111: SMAW (Shielded Metal Arc Welding) and Process No 114: FCAW (Flux Cored Arc Welding).
This document can be applied in situ, at line side or at out of track locations. The flash welded leg ends of austenitic manganese steel crossings are included in this document, except when located within 500 mm of manganese crossings. Where repairs are required within 500 mm, refer to EN 16725.

IEC/IEEE 62395-1:2024 specifies requirements for electrical resistance trace heating systems and includes general test requirements. This first edition cancels and replaces the second edition published in 2013. This edition constitutes a technical revision. This edition includes the following significant technical changes, apart from general revisions of IEC 62395-1 and harmonization with IEEE 515 [1] and IEEE 515.1 [2], with respect to the previous edition: a) Added control and monitoring requirements for fire sprinkler systems and safety showers. b) Provided a supplemental ice bath method for verification of rated output. c) Provided constructional and type test requirements for glands used to terminate heating devices to an exposed enclosure.

This document specifies an analytical method with a puffing regime according to ISO 5501-2 to determine aerosol collected mass (ACM) and nicotine in the aerosol from aerosol heated tobacco products, in combination with a specific tobacco heating device (THD).

This document defines general terms for district heating and/or cooling systems.

This document specifies the general requirements for evaluating the vibration of various coupled industrial machine types with operating speeds between 120 r/min and 30 000 r/min when measurements are made in-situ. This document gives guidelines for applying evaluation criteria for measurements taken on non-rotating and rotating parts under normal operating conditions. The guidelines are presented in terms of both steady running vibration values and in terms of changes to vibration values which can occur in these steady values. This document is applicable to these machine types: steam turbines and generators with outputs ≤40 MW; steam turbines and generators with output power >40 MW and operating speeds other than 1 500 r/min, 1 800 r/min, 3 000 r/min or 3 600 r/min (although generators seldom fall into this category); rotary compressors; industrial gas turbines with output power ≤3 MW; turbofans; electric motors of any type, if the coupling is flexible. When a motor is rigidly coupled to a machine type covered by any other part of the ISO 20816 series, see also that other part; rolls and mills; conveyors; blowers or fans with a rated power greater than 300 kW or which are not flexibly supported, see also ISO 14694. This document is applicable to machines including a gear unit. ISO 20816-9 contains information for special acceptance tests related to gear units. This document is applicable to in-situ broad-band vibration measurements taken on the shafts, bearings, bearing pedestals or housings of machines close to bearings under steady-state operating conditions within their operating speed range. The requirements relate to both acceptance tests and operational monitoring. The evaluation criteria apply to both continuous and non-continuous monitoring. This document is applicable to machines which have gears or rolling bearings but does not address the diagnostic evaluation of the condition of those gears or bearings. This document is applicable only for the vibration produced by the machine set itself and not for vibration that is transmitted to the machine set from external sources.

This document specifies basic control strategies, minimum functional requirements, basic driver interface elements, and test procedures for verifying the system requirements for collision evasive lateral manoeuvre systems (CELM). Specific methods for object detection and other environmental perception technologies are not described in this document. This document applies to light vehicles and heavy trucks. Vehicles equipped with trailers are not within the scope of this document.

IEC/IEEE 60880:2026 provides requirements for the software of computer-based systems of nuclear power plants performing functions of safety category A as defined by IEC 61226. As an IEC/IEEE standard developed according to the Dual Logo Agreement, when used within the context of IEEE, this document is considered to provide an acceptable set of requirements for achieving the quality and dependability objectives for the software used in IEEE Class 1E safety systems, subsystems and components.
According to the definition in IEC 61513, I&C systems of safety class 1 are intended to support category A functions, but can also support functions of lower categories. However the system requirements are always determined by the functions of the highest category implemented.
For software of I&C system performing only category B and C functions in NPP as defined by IEC 61226, the requirements and guidance of IEC 62138 are applicable.
This document provides requirements for the purpose of achieving highly dependable software. It addresses each stage of software generation and documentation, including requirements specification, design, implementation, verification and validation testing.
This is the first edition developed according to the IEC/IEEE Dual Logo Agreement. This edition cancels and replaces the second IEC edition published in 2006. It constitutes a technical revision.
The revision of the standard is intended to accomplish the following:
- To take into account the fact that software engineering techniques advanced significantly in the intervening years.
- To align the standard with the new IAEA document SSG-39.
- To align as far as possible the definitions in the standard with the International Atomic Energy Agency, IAEA Nuclear Safety and Security Glossary, 2022 (Interim) Edition, IAEA, Vienna (2022).
- To adapt the requirements associated with standards published or revised since the second edition of IEC 60880, especially IEC 61513, IEC 61226, IEC 62138, IEC 60987, IEC 62340, IEC 62645 and IEC 62671.
- To review the existing requirements.

IEC 62047-56:2026 specifies the requirements and test method for characteristics of MEMS metal oxide semiconductor (MOS) type gas sensor.

This document establishes general principles for the measurement and evaluation of vibration using measurements made on rotating or non-rotating parts of complete machines. It is applicable to vibration measurements on non-rotating parts and to both absolute and relative radial shaft vibration with regard to the monitoring of radial clearances, but does not apply to axial shaft vibration, unless otherwise stated. The evaluation criteria, which are presented in terms of both vibration magnitude and change in vibration, relate to both operational monitoring and acceptance tests. They have been provided primarily with regard to securing reliable, safe, long-term operation of the machine while minimizing any adverse effects on associated equipment. This document also gives guidance on setting operating limits. NOTE 1 The evaluation criteria for different machine types are included in other parts of the ISO 10816 series and the ISO 20816 series. NOTE 2 The term “shaft vibration” is used throughout the ISO 10816 series and the ISO 20816 series because, in most cases, vibration measurements are made on machine shafts. However, the ISO 10816 series and the ISO 20816 series are also applicable to measurements made on other rotating elements of the machine if such elements are found or known to be more suitable, provided that the guidelines set in this document are met. The evaluation criteria are only applicable to the vibration produced by the machine itself and not the vibration transmitted to it from outside. This document does not apply to torsional vibration. NOTE 3 For information regarding the evaluation of torsional vibration, see e.g. ISO 3046-5, ISO 22266-1 or VDI 2039.

This document specifies an analytical method with a puffing regime according to ISO 5501-1 to determine aerosol collected mass (ACM) and nicotine in the aerosol from electrically heated tobacco products, in combination with a specific tobacco heating device (THD).

This document specifies part properties, design freedom, strengths and applications of additively manufactured (AM) ceramic materials. It is aimed at product planners and designers and provides the necessary basic knowledge about ceramics and the possibilities specific to AM ceramics, including strengths and limitations of the most utilized ceramic AM process categories. In-depth previous knowledge in these areas is not assumed.

This document specifies the assessment of copper winding sulfur corrosion in power equipment. It is applicable to the sulfur corrosion resistance testing of copper windings in newly installed and in-service power equipment.

This document describes a ECMA 404:2017 JSON implementation of ISO 19115-1 and ISO 19157-1 as a proof of concept. The resulting JSON encoding is not a formal json specification but is intended to proof the feasibilty of the approach taken and the implicated encoding principles. The document provides a set of JSON schema files which define a JSON encoding of the concepts defined by conceptual schemas in ISO 19115-1 and ISO 19157-1. The JSON representation is scoped to exchange via HTTP. In this document, only a subset of the content of both ISO 19115-1 and ISO 19157-1 is included, in order to simplify the process of defining the resulting JSON schema. For the same reason, ISO 19115-2:2019 is currently not included. The subset is chosen to be a core operational set of both ISO 19115- and ISO 19157-1. This document describes the procedure used to generate JSON schema from ISO geographic information conceptual models related to metadata. The procedure includes creation of an UML implementation model for JSON implementation derived from the ISO 19115-1 and ISO 19157-1 conceptual schemas.

IEC TS 60071-4:2026, which is a technical specification, gives guidance on conducting insulation co-ordination studies which propose internationally recognized recommendations:
• for the computational modelling of electrical systems, and
• for the implementation of deterministic and probabilistic methods adapted to the use of numerical programmes.
Its objective is to give information in terms of methods, modelling and examples that support the application of the approaches presented in IEC 60071-2:2023, and for the selection of insulation levels of equipment or installations, as defined in IEC 60071-1:2019.
This edition cancels and replaces IEC TR 60071-4, published in 2004. This edition constitutes a technical revision.

This part of IEC 63223 series [2] provides an overview of asset management, its principles and value creation options for the management of network assets in power systems.
This document can be applied to all types of network assets and by all types and sizes of power network companies. The term power network company does not necessarily refer to legally structured companies.
In this document, network assets refer mainly to the physical assets of the electrical energy network, meaning items, equipment, or systems that have potential or actual value for the electric company and are part of the power lines and substations responsible for the transmission and distribution of electrical energy. Examples of network assets that can be included in the asset portfolio of a power network company are presented in IEC 63223-2:2026 [6], 4.2.2.

This part of IEC 63478 describes the measurement methods for users’ quality of experience (QoE) parameters on multimedia conferencing services.

This part of IEC 62146 includes generalities of capacitors used on alternating current circuitbreakers and introduces specifications for grading capacitors. Regarding grading capacitors, their function is to control the voltage distribution across the individual interrupter units of a multi-break circuit-breaker.
Capacitors can also be used in parallel to the interrupter unit on single break circuit-breakers to modify the Transient Recovery Voltage (TRV). This TRV capacitor application is covered by IEC 62146-2:2023.
Capacitors for high-voltage alternating circuit breakers are sub-components for the circuitbreaker and are specified in accordance with the circuit-breaker specifications according to IEC 62271-1, IEC 62271-100, and if applicable to IEC 62271-203.
This document applies to grading capacitors falling into one or both of the following categories for:
− mounting on air-insulated circuit-breakers.
− mounting on enclosed circuit-breakers (for example immersed in insulating gas, in oil, etc.).
The testing for each of the above applications is in some cases different.
The object of this document is:
− to define uniform rules regarding performances, testing and rating;
− to define specific safety rules;
− to provide a guidance for installation and operation.
NOTE CIGRÉ TB-368 presents a study about the operating environment of voltage grading capacitors applied to high-voltage circuit-breakers (see [2]1).
This document does not apply to capacitors not directly associated with high-voltage alternating current circuit-breakers.

IEC TR 62240-2:2026 focuses on original equipment manufacturers (OEMs) using commercial off the shelf (COTS) semiconductor microcircuits for high performance, high reliability and long duration applications. This document supports OEMs in the preparation and maintenance of their semiconductor electronic component management plan (ECMP). IEC TR 62240-2:2026 describes a process and a method for selecting digital semiconductor microcircuits by ensuring that their lifetime is compatible with the requirements of aerospace, defence and high performance (ADHP) applications (generally in connection with functional environments). Methods and guidelines are provided to assess the long-term reliability of COTS semiconductor microcircuits in such applications; they mainly apply during the electronic design phase when selecting semiconductor microcircuits and assessing the application reliability. Moreover, this document focuses on the intrinsic wear-out and the lifetime of COTS semiconductor microcircuits processed of less than or equal to 90 nm feature size (also called deep sub-micron (DSM) semiconductor microcircuits) and puts aside, at this time, packaging wear-out and random failure mechanisms. In this view, physics of failure (PoF) is at the heart of the approach.
This edition includes the following significant technical changes with respect to the previous edition:
a) introduction of an additional alternative path and approach where lifetime is assessed by the original component manufacturer based on user or original equipment manufacturer microcircuit mission profile;
b) update of Figure 1 with regard to the introduction of the additional alternative path & approach;
c) removal of the mention of SiC & GaN technologies from the considerations in 4.2.2 as the Scope indicates that the principles (process and method) described in this document can be applied to all types of semiconductor technologies.

This document provides product category rules (c-PCR), that are complementary to EN 15804:2012+A2:2019, for Type III environmental declarations for sandwich panels within the scope of EN 14509 1:— and EN 14509 2:—, which are used for non-structural and structural purposes in building envelopes and for sandwich panels with perforated faces and for sandwich panels with core materials others than defined in EN 14509 1:— and EN 14509 2:—.
Manufactured on industrial plant, double skin metal faced insulating sandwich panels are designed to be laid with overlapping edges in the following applications:
—   roofs and discontinuous roofing;
—   outer walls and wall cladding;
—   walls (incl. partition walls) and (suspended) ceilings inside the building envelope.
This document is intended to be used cradle-to-grave, declaring modules A1-A3, modules C1-C4 and module D, according to EN 15804:2012+A2:2019
NOTE   The assessment of social and economic performances at product level is not covered by this document.

This document provides requirements and guidelines for selecting the measuring device, measuring geometry and temperature control unit for tests involving rotational and oscillatory rheometry. The general principles of test performance are described and example evaluations of rotational and oscillatory rheometry are provided.

IEC 60794-3-11:2026 sets forth detailed requirements and characteristics specific to this type of optical fibre cables for duct, direct buried, and lashed installation. This document includes functional, mechanical, environmental and optical requirements, recommended features and test methods for assessing the product against the stated requirements. The specified test methods, where applicable, are those referenced in IEC 60794-1-1 and IEC 60794-1-2. The requirements of this document supplement those of the sectional specification IEC 60794‑3 and the family specification IEC 60794-3-10.
This edition includes the following significant technical changes with respect to the previous edition:
a) subclause 5.2.2 has been enlarged to include fibre type B-657.B2;
b) this document has been updated to include multimode optical fibres.

IEC TS 63102:2026 highlights the recommended technical methods of grid code compliance assessment of renewable energy (RE) power plants connected to the grid, including wind power plants, photovoltaic (PV) power plants, and hybrid power plants. Hybrid power plants refer to wind/PV power plants equipped with energy storage systems or combined power plants based on wind, PV, and energy storage. The electrical behaviour of RE power plants in this document includes the operating area, control performance, fault ride-through capability, power quality, oscillation, and grid adaptability.
Compliance assessment is the process of determining whether the electrical behaviour of RE power plants meets the specific technical requirements in grid codes or technical regulations. The assessment methods include compliance field test, compliance simulation, hardware-in-the-loop (HIL) simulation and compliance monitoring. The input for compliance assessment includes relevant supporting documents, test results, validated simulation models, controller hardware, and continuous monitoring data. This document focuses exclusively on assessment methods from a technical perspective. It does not address certification-related procedures.
This document is applicable to RE power plants connected to the electrical power grid.
This second edition cancels and replaces the first edition published in 2021. This edition includes the following significant technical changes with respect to the previous edition:
a) in terms of scope, wind and PV power plants are replaced by the renewable energy power plants that includes wind power plants, PV power plants and hybrid power plants. Oscillation and grid adaptability are added in the assessment scope;
b) Clause 5 optimizes the descriptions of compliance field testing, compliance simulation, HIL simulation and compliance monitoring assessment methods, and recommends corresponding assessment methods according to different phases of renewable energy power plants and various assessment items;
c) Clause 6 supplements compliance field test methods for reactive power capability assessment;
d) Clause 7 adds synthetic inertia response and voltage slope control to control performance assessment, adjusts recommended contents for field testing and HIL simulation, f) improves applicable conditions and reference procedures of assessment methods, and updates illustrative charts and figures;
e) Clause 8 adds cascaded under and over voltage ride-through assessment cases, and refines simulation procedures and requirements for simulation results;
f) Clause 9 incorporates compliance simulation and monitoring methods into power quality assessment;
g) oscillation assessment is newly introduced, adopting combined time-domain and frequency-domain simulation as well as monitoring methods, with the consideration of renewable energy power plants connected to grid via HVDC;
i) grid adaptability assessment is newly supplemented, specifically covering the following withstand capability, such as voltage unbalance factor, flicker and harmonics, phase angle jump and grid strength;
j) Annex A adds topological structure examples of renewable energy power plants, compliance simulation setup, and improves contents including HIL simulation setup, monitoring of electrical performance and harmonics simulation.

IEC 63407:2026 is applicable to automatic couplers, consisting of an automated connection device (ACD) and an ACD counterpart, of standardized configuration, intended for use in electric vehicle conductive charging systems which incorporate control means, with rated operating voltage up to 1 500 V DC. This document applies to high power DC interfaces intended for use in isolated conductive charging systems, for circuits specified in IEC 61851‑23‑1.
The requirements of this document apply only to automatic couplers defined in Annex A, Annex B, Annex C and Annex D of this document.

This document gives the background to the requirements specified in the EN 15427 series of standards and CEN/TS 15427 series of technical specifications.

This document specifies the technical delivery requirements for seamless and welded butt-welding fittings (elbows, concentric and eccentric reducers, equal and reducing tees, caps) made of austenitic and austenitic-ferritic (duplex) stainless steel without specific inspection requirements.
This document specifies:
—   steel grades and their chemical compositions;
—   mechanical properties;
—   dimensions and tolerances;
—   requirements for inspection and testing;
—   inspection documents;
—   marking;
—   handling and packaging.

This document specifies the additional technical delivery conditions for castings made from all cast iron materials.
This document applies to iron castings produced in sand or permanent moulds or by centrifugal casting, continuous casting or investment casting.

This document specifies requirements and technical specifications for information presented in tactile lettering in the built environment.
NOTE   For the definition of built environment see ISO 21542.
It sets out rules for content, design, arrangement and application of information elements so that blind and partially sighted people are able to locate, identify, fluently read and interpret this information.
This document does not specify technical methods for producing tactile lettering.
This document is only applicable to permanently installed tactile lettering.

This document specifies an accelerated method for the determination of wet-scrub resistance. The determination of cleanability is not covered in the scope of this document.
NOTE            The ability of coatings to withstand wear caused by repeated cleaning operations is an important consideration both from a practical point of view and when comparing and rating such coatings. Since wet-scrub resistance depends not only on the quality of a coating but also on the substrate, the method of application, the drying conditions and other factors, the results obtained are not directly transferable to actual practice. In this document, the evaluation of the coating is based on a defined substrate, a fixed application method, specified drying conditions and a defined method of wet scrubbing.

The document covers all aspects which are relevant for the design of all kinds of water wells abstracting from or injecting water to the groundwater or for groundwater observation.
This document does not apply to horizontal wells and closed loop geothermal systems. The document defines design requirements of water wells for public and private users in
accordance with groundwater protection goals. It gives guideline for all planning steps from
preliminary to final executive project design.
This document specifies a sequential method for designing a well. Based on the hydrogeological
conditions and the objectives of the well, a step-by-step process of dimensioning the
well is defined. This methodology includes dimensioning of the drilling, filter packs, sealing and
screen. Furthermore, selection of appropriate materials, the pump and all other additional well
equipment is established. With regard to the planning process references are provided to drilling
methods, geophysical well logging, well development and pumping tests.

This document specifies calculation methods for determining the required mass flow to be relieved for each specified conditions described in Table 1.
Recommendations for pressure relief devices for cryostats are given in Annex A.

This document gives guidance to the design of ventilative cooling systems while referring to relevant standards to ensure coherence and avoiding overlapping. In this document different design approaches for use of natural, mechanical or hybrid ventilative cooling can be found, starting at the feasibility phase before going into the design phase. In addition, this document gives guidance on where to find additional information on the design, calculation and maintenance of such systems.
This document is applicable to buildings specified according to the thermal indoor environmental aspects used for human occupancy where production processes don’t have a major impact on the indoor environmental quality. This document is applicable to residential and non-residential buildings.
This document applies to all types of buildings: new and retrofit, residential and non-residential.
This document is applicable to:
-   mechanical ventilative cooling
-   natural ventilative cooling
-   hybrid ventilative cooling
-   airing as a supplement to ventilative cooling specifically relevant during e.g. power failures
-   supplementary free cooling as a supplement to ventilative cooling
The design of supplementary free cooling systems and active cooling systems are not part of the normative part of the document. However, the interface between ventilative cooling systems and supplementary free cooling systems as well as the interface between ventilative cooling and active cooling systems are mentioned informatively.
Design of ventilative cooling systems commonly considers other aspects like energy use, acoustic, draught, solar gain control, outdoor air quality, user acceptance, burglary and cleaning and maintenance, though these are not covered in detail in this document.
This document only covers temperature control.
This document does not apply to:
-   moisture control
-   waterborne
-   heat losses.

IEC 60335-2-17:2022 deals with the safety of electric blankets, pads, clothing and other flexible appliances that heat the bed or human body, for household and similar purposes, their rated voltage being not more than 250 V including direct current (DC) supplied appliances and battery-operated appliances.
This standard also applies to control units supplied with the appliance.
Appliances not intended for normal household use but which nevertheless possibly pose be a source of danger to the public, such as appliances intended to be used in beauty parlours or by persons in cold ambient temperatures, are within the scope of this standard.
Requirements and tests for clothing are given in normative Annex CC.
As far as is practicable, this standard deals with the common hazards presented by appliances that are encountered by all persons in and around the home. However, in general, it does not take into account
– persons (including children) whose physical, sensory or mental capabilities or lack of experience and knowledge prevents them from using the appliance safely without supervision or instruction;
– children playing with the appliance.
Children are considered to be old enough to use an appliance without supervision when they have been adequately instructed by a parent or guardian and are deemed competent to use the appliance safely.
Attention is drawn to the fact that
– for appliances intended to be used in vehicles or on board ships or aircraft, additional requirements can be necessary;
– in many countries, additional requirements are specified by the national health authorities, the national authorities responsible for the protection of labour and similar authorities.
This standard does not apply to
– appliances intended to be used in locations where special conditions prevail, such as the presence of a corrosive or explosive atmosphere (dust, vapour or gas);
– rigid bed warmers, such as those of metal or ceramic material;
– water bed heaters (IEC 60335-2-66);
– heating appliances for breeding and rearing animals (IEC 60335-2-71);
– foot warmers and heating mats (IEC 60335-2-81);
– appliances specifically intended for use under medical supervision (IEC 60601-2-35);
– heated carpets (IEC 60335-2-106).
This fourth edition cancels and replaces the third edition published in 2012, Amendment 1:2015 and Amendment 2:2019. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) alignment with IEC 60335-1:2020;
b) conversion of some notes to normative text (Clause 1, 19.106, 21.103, 21.104, 21.110, 30.1, 30.102, Annex BB, CC.19.3);
c) clarification of the definition of control unit (3.6.105);
d) revision for adjusting the supply voltage of appliances, other than controlled appliances, when operation at rated power input times a factor is specified (5.12);
e) clarification of testing of blankets that cannot be folded with five thicknesses (19.101);
f) updated compliance criteria to include breakage of electrodes (21.1);
g) clarification of the test method for mattresses based on the rigidity index of the flexible part (21.111.1, Annex DD);
h) clarification for testing heating elements with a non-circular construction (21.111.3);
i) addition of requirements to protect the user from overheating in the event of an interruption in the mains supply (22.110)
j) inclusion of pressure test method from IEC 60320-1:2001 (30.1);
k) update of test methods for resistance to fire tests (30.101.1, 30.102).
This part 2 is to be used in conjunction with the latest edition of IEC 60335-1 and its amendments unless that edition precludes it; in that case, the latest edition that does not preclude it is used. It was established on the basis of the sixth edition (2020) of that standard.

REN/HF-00301561

RTBR/SMG-0019R1

DEN/ERM-TGAERO-31-1

DEN/ERM-TG28-561

The present document specifies technical requirements, limits and test methods for Short Range Devices in the non-
specific category operating in the frequency range 25 MHz to 1 000 MHz.
The non specific SRD category is defined by the EU Commission Decision 2019/1345/EU [i.3] as:
"The non-specific short-range device category covers all kinds of radio devices, regardless of the application or the
purpose, which fulfil the technical conditions as specified for a given frequency band. Typical uses include telemetry,
telecommand, alarms, data transmissions in general and other applications".
These radio equipment types are capable of transmitting up to 500 mW effective radiated power and operating indoor or
outdoor.
NOTE: The relationship between the present document and the essential requirements of article 3.2 of
Directive 2014/53/EU [i.2] is given in Annex A

REN/MSG-TFES-15-3

ABSTRACT
This test method deals with the acceptance criteria for the magnetic particle examination of forged steel crankshafts and forgings having large main bearing journal or crankpin diameters. Covered here are three classes of forgings, which shall be evaluated under two areas of inspection, namely: major critical areas, and minor critical areas. During inspection, magnetic particle indications shall be classified as: surface indications, which include nonmetallic inclusions or stringers, open or twist cracks, flakes, or pipes; open or pinpoint indications; and non-open indications. Procedures for dimpling, depressing, inspection, and product marking are also mentioned.
SCOPE
1.1 This is an acceptance specification for the magnetic particle inspection of forged steel crankshafts having main bearing journals or crankpins 4 in. [200 mm] or larger in diameter.  
1.2 There are three classes, with acceptance standards of increasing severity:  
1.2.1 Class 1.  
1.2.2 Class 2 (originally the sole acceptance standard of this specification).  
1.2.3 Class 3 (formerly covered in Supplementary Requirement S1 of Specification A456 – 64 (1970)).  
1.3 This specification is not intended to cover continuous grain flow crankshafts (see Specification A983/A983M); however, Specification A986/A986M may be used for this purpose.
Note 1: Specification A668/A668M is a product specification which may be used for slab-forged crankshaft forgings that are usually twisted in order to set the crankpin angles, or for barrel forged crankshafts where the crankpins are machined in the appropriate configuration from a cylindrical forging.  
1.4 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.  
1.5 Unless the order specifies the applicable “M” specification designation, the material shall be furnished to the inch units.  
1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

SIGNIFICANCE AND USE
5.1 Research O.N. correlates with commercial automotive spark-ignition engine antiknock performance under mild conditions of operation.  
5.2 Research O.N. is used by engine manufacturers, petroleum refiners and marketers, and in commerce as a primary specification measurement related to the matching of fuels and engines.  
5.2.1 Empirical correlations that permit calculation of automotive antiknock performance are based on the general equation:
Values of k1,  k2, and k3 vary with vehicles and vehicle populations and are based on road-O.N. determinations.  
5.2.2 Research O.N., in conjunction with Motor O.N., defines the antiknock index of automotive spark-ignition engine fuels, in accordance with Specification D4814. The antiknock index of a fuel approximates the Road octane ratings for many vehicles, is posted on retail dispensing pumps in the U.S., and is referred to in vehicle manuals.
This is more commonly presented as:
5.2.3 Research O.N. is also used either alone or in conjunction with other factors to define the Road O.N. capabilities of spark-ignition engine fuels for vehicles operating in areas of the world other than the United States.  
5.3 Research O.N. is used for measuring the antiknock performance of spark-ignition engine fuels that contain oxygenates.  
5.4 Research O.N. is important in relation to the specifications for spark-ignition engine fuels used in stationary and other nonautomotive engine applications.
SCOPE
1.1 This laboratory test method covers the quantitative determination of the knock rating of liquid spark-ignition engine fuel in terms of Research O.N., including fuels that contain up to 25 % v/v of ethanol. However, this test method may not be applicable to fuel and fuel components that are primarily oxygenates.2 The sample fuel is tested using a standardized single cylinder, four-stroke cycle, variable compression ratio, carbureted, CFR engine run in accordance with a defined set of operating conditions. The O.N. scale is defined by the volumetric composition of PRF blends. The sample fuel knock intensity is compared to that of one or more PRF blends. The O.N. of the PRF blend that matches the K.I. of the sample fuel establishes the Research O.N.  
1.2 The O.N. scale covers the range from 0 to 120 octane number but this test method has a working range from 40 to 120 Research O.N. Typical commercial fuels produced for spark-ignition engines rate in the 88 to 101 Research O.N. range. Testing of gasoline blend stocks or other process stream materials can produce ratings at various levels throughout the Research O.N. range.  
1.3 The values of operating conditions are stated in SI units and are considered standard. The values in parentheses are the historical inch-pound units. The standardized CFR engine measurements continue to be in inch-pound units only because of the extensive and expensive tooling that has been created for this equipment.  
1.4 For purposes of determining conformance with all specified limits in this standard, an observed value or a calculated value shall be rounded “to the nearest unit” in the last right-hand digit used in expressing the specified limit, in accordance with the rounding method of Practice E29.  
1.5 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. For specific warning statements, see Section 8, 14.4.1, 15.5.1, 16.6.1, Annex A1, A2.2.3.1, A2.2.3.3 (6) and (9), A2.3.5, X3.3.7, X4.2.3.1, X4.3.4.1, X4.3.9.3, X4.3.11.4, and X4.5.1.8.  
1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Gu...

SIGNIFICANCE AND USE
3.1 These tests are useful in sampling and testing solvent bearing bituminous compounds to establish uniformity of shipments.
SCOPE
1.1 These test methods cover procedures for sampling and testing solvent bearing bituminous compounds for use in roofing and waterproofing.  
1.2 The test methods appear in the following order:    
Section  
Sampling  
4  
Uniformity  
5  
Weight per gallon  
6  
Nonvolatile content  
7  
Solubility  
8  
Ash content  
9  
Water content  
10  
Consistency  
11  
Behavior at 60 °C [140 °F]  
12  
Pliability at –0 °C [32 °F]  
13  
Aluminum content  
14  
Reflectance of aluminum roof coatings  
15  
Strength of laps of rolled roofing adhered with roof adhesive  
16  
Adhesion to damp, wet, or underwater surfaces  
17  
Mineral stabilizers and bitumen  
18  
Mineral matter  
19  
Volatile organic content  
20  
1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the standard.  
1.4 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

SIGNIFICANCE AND USE
5.1 Coefficients of linear thermal expansion are used, for example, for design purposes and to determine if failure by thermal stress may occur when a solid body composed of two different materials is subjected to temperature variations.  
5.2 This test method is comparable to Test Method D3386 for testing electrical insulation materials, but it covers a more general group of solid materials and it defines test conditions more specifically. This test method uses a smaller specimen and substantially different apparatus than Test Methods E228 and D696.  
5.3 This test method may be used in research, specification acceptance, regulatory compliance, and quality assurance.
SCOPE
1.1 This test method determines the technical coefficient of linear thermal expansion of solid materials using thermomechanical analysis techniques.  
1.2 This test method is applicable to solid materials that exhibit sufficient rigidity over the test temperature range such that the sensing probe does not produce indentation of the specimen.  
1.3 The recommended lower limit of coefficient of linear thermal expansion measured with this test method is 5 μm/(m·°C). The test method may be used at lower (or negative) expansion levels with decreased accuracy and precision (see Section 12).  
1.4 This test method is applicable to the temperature range from −120 °C to 900 °C. The temperature range may be extended depending upon the instrumentation and calibration materials used.  
1.5 SI units are the standard. No other units of measurement are included in this standard.  
1.6 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.7 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ABSTRACT
This specification covers unreinforced vulcanized rubber sheets made from ethylene propylene diene terpolymer (EPDM) or butyl (IIR), intended for use in preventing water under hydrostatic pressure from entering a structure. The tests and property limits used to characterize these sheets are specific for each classification and are minimum values to make the product fit for its intended purpose. Types used to identify the principal polymer component of the sheet include: type I - ethylene propylene diene terpolymer, and type II - butyl. The sheet shall be formulated from the appropriate polymers and other compounding ingredients. The thickness, tensile strength, elongation, tensile set, tear resistance, brittleness temperature, and linear dimensional change shall be tested to meet the requirements prescribed. The water absorption, factory seam strength, water vapour permeance, hardness durometer, resistance to soil burial, resistance to heat aging, and resistance to puncture shall be tested to meet the requirements prescribed.
SCOPE
1.1 This specification covers unreinforced vulcanized rubber sheets made from ethylene propylene diene terpolymer (EPDM) or butyl (IIR), intended for use in preventing water under hydrostatic pressure from entering a structure.  
1.2 The tests and property limits used to characterize these sheets are specific for each classification and are minimum values to make the product fit for its intended purpose.  
1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the standard.  
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

SIGNIFICANCE AND USE
5.1 This test method is useful in characterizing certain petroleum products, as one element in establishing uniformity of shipments and sources of supply.  
5.2 See Guide D117 for applicability to mineral oils used as electrical insulating oils.  
5.3 The Saybolt Furol viscosity is approximately one tenth the Saybolt Universal viscosity, and is recommended for characterization of petroleum products such as fuel oils and other residual materials having Saybolt Universal viscosities greater than 1000 s.  
5.4 Determination of the Saybolt Furol viscosity of bituminous materials at higher temperatures is covered by Test Method E102/E102M.
SCOPE
1.1 This test method covers the empirical procedures for determining the Saybolt Universal or Saybolt Furol viscosities of petroleum products at specified temperatures between 21 and 99 °C [70 and 210 °F]. A special procedure for waxy products is indicated.  
Note 1: Test Methods D445 and D2170/D2170M are preferred for the determination of kinematic viscosity. They require smaller samples and less time, and provide greater accuracy. Kinematic viscosities may be converted to Saybolt viscosities by use of the tables in Practice D2161. It is recommended that viscosity indexes be calculated from kinematic rather than Saybolt viscosities.  
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined.  
1.3 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

SIGNIFICANCE AND USE
5.1 This test method simulates the hydrostatic loading conditions which are often present in actual sandwich structures, such as marine hulls. This test method can be used to compare the two-dimensional flexural stiffness of a sandwich composite made with different combinations of materials or with different fabrication processes. Since it is based on distributed loading rather than concentrated loading, it may also provide more realistic information on the failure mechanisms of sandwich structures loaded in a similar manner. Test data should be useful for design and engineering, material specification, quality assurance, and process development. In addition, data from this test method would be useful in refining predictive mathematical models or computer code for use as structural design tools. Properties that may be obtained from this test method include:  
5.1.1 Panel surface deflection at load,  
5.1.2 Panel face-sheet strain at load,  
5.1.3 Panel bending stiffness,  
5.1.4 Panel shear stiffness,  
5.1.5 Panel strength, and  
5.1.6 Panel failure modes.
SCOPE
1.1 This test method determines the two-dimensional flexural properties of sandwich composite plates subjected to a distributed load. The test fixture uses a relatively large square panel sample which is simply supported all around and has the distributed load provided by a water-filled bladder. This type of loading differs from the procedure of Test Method C393, where concentrated loads induce one-dimensional, simple bending in beam specimens.  
1.2 This test method is applicable to composite structures of the sandwich type which involve a relatively thick layer of core material bonded on both faces with an adhesive to thin-face sheets composed of a denser, higher-modulus material, typically, a polymer matrix reinforced with high-modulus fibers.  
1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. Within the text the inch-pound units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with the standard.  
1.4 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

SIGNIFICANCE AND USE
4.1 Different electroplating systems can be corroded under the same conditions for the same length of time. Differences in the average values of the radius or half-width or of penetration into an underlying metal layer are significant measures of the relative corrosion resistance of the systems. Thus, if the pit radii are substantially higher on samples with a given electroplating system, when compared to other systems, a tendency for earlier failure of the former by formation of visible pits is indicated. If penetration into the semi-bright nickel layer is substantially higher, a tendency for earlier failure by corrosion of basis metal is evident.
SCOPE
1.1 This test method provides a means for measuring the average dimensions and number of corrosion sites in an electroplated decorative nickel plus chromium or copper plus nickel plus chromium coating on steel after the coating has been subjected to corrosion tests. This test method is useful for comparing the relative corrosion resistances of different electroplating systems and for comparing the relative corrosivities of different corrosive environments. The numbers and sizes of corrosion sites are related to deterioration of appearance. Penetration of the electroplated coatings leads to appearance of basis metal corrosion products.  
1.2 The values stated in SI units are to be regarded as the standard.  
1.3 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

SIGNIFICANCE AND USE
5.1 Often the most critical stress to which a sandwich panel core is subjected is shear. The effect of repeated shear stresses on the core material can be very important, particularly in terms of durability under various environmental conditions.  
5.2 This test method provides a standard method of obtaining the sandwich core shear fatigue response. Uses include screening candidate core materials for a specific application, developing a design-specific core shear cyclic stress limit, and core material research and development.
Note 3: This test method may be used as a guide to conduct spectrum loading. This information can be useful in the understanding of fatigue behavior of core under spectrum loading conditions, but is not covered in this standard.  
5.3 Factors that influence core fatigue response and shall therefore be reported include the following: core material, core geometry (density, cell size, orientation, etc.), specimen geometry and associated measurement accuracy, specimen preparation, specimen conditioning, environment of testing, specimen alignment, loading procedure, loading frequency, force (stress) ratio and speed of testing (for residual strength tests).
Note 4: If a sandwich panel is tested using the guidance of this standard, the following may also influence the fatigue response and should be reported: facing material, adhesive material, methods of material fabrication, adhesive thickness and adhesive void content. Further, core-to-facing strength may be different between precured/bonded and co-cured facings in sandwich panels with the same core and facing materials.
SCOPE
1.1 This test method determines the effect of repeated shear forces on core material used in sandwich panels. Permissible core material forms include those with continuous bonding surfaces (such as balsa wood and foams) as well as those with discontinuous bonding surfaces (such as honeycomb).  
1.2 This test method is limited to test specimens subjected to constant amplitude uniaxial loading, where the machine is controlled so that the test specimen is subjected to repetitive constant amplitude force (stress) cycles. Either shear stress or applied force may be used as a constant amplitude fatigue variable.  
1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined. Within the text, the inch-pound units are shown in brackets.  
1.4 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ABSTRACT
This specification covers three types of aluminum-pigmented asphalt roof coatings suitable for application to roofing or masonry surfaces by brush or spray. Type I is nonfibered, Type II is fibered with asbestos, and Type III is fibered other than asbestos. The coatings shall adhere to chemical requirements such as composition limits for water, nonvolatile matter, metallic aluminum, and insolubility in CS2. They shall also meet physical requirements as to uniformity, consistency, and luminous reflectance.
SCOPE
1.1 This specification covers asphalt-based, aluminum-pigmented roof coatings suitable for application to roofing or masonry surfaces by brush or spray.  
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined.  
1.3 The following precautionary caveat pertains only to the test method portion, Section 8, of this specification: 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

This document relates to EN 50288 1, Multi-element metallic cables used in analogue and digital communication and control. It covers overall screened work area cables, characterized up to 2GHz, backward compatible to cables specified up to 500MHz, used in work area wiring for information technology, generic-cabling systems. The electrical, mechanical, transmission and environmental performance characteristics of the cables, related to their reference test methods, are detailed. This sectional specification is expected to be read in conjunction with EN 50288 1, which contains the essential provisions for its application. The cables covered by this sectional specification are intended to operate with voltages and currents normally encountered in communication systems. These cables are not intended to be used in conjunction with low impedance sources, for example, the electric power supplies of public utility mains.

This document relates to EN 50288 1, Multi-element metallic cables used in analogue and digital communication and control. It covers overall screened horizontal cables, characterized up to 2GHz, backward compatible to cables specified up to 500MHz, used in data centre and horizontal floor and building backbone wiring for information technology, generic-cabling systems. The electrical, mechanical, transmission and environmental performance characteristics of the cables, related to their reference test methods, are detailed. This sectional specification is expected to be read in conjunction with EN 50288 1, which contains the essential provisions for its application. The cables covered by this sectional specification are intended to operate with voltages and currents normally encountered in communication systems. These cables are not intended to be used in conjunction with low impedance sources, for example, the electric power supplies of public utility mains.

This document relates to EN 50288 1, Multi-element metallic cables used in analogue and digital communication and control. It covers screened cables, characterized up to 2GHz, used in work area wiring for information technology, generic-cabling systems. The electrical, mechanical, transmission and environmental performance characteristics of the cables, related to their reference test methods, are detailed. This sectional specification is expected to be read in conjunction with EN 50288 1, which contains the essential provisions for its application. The cables covered by this sectional specification are intended to operate with voltages and currents normally encountered in communication systems. These cables are not intended to be used in conjunction with low impedance sources, for example, the electric power supplies of public utility mains.

RTS/TSGC-0329521vh50

RTS/TSGC-0329523vh70

DEN/ERM-TGAERO-31-2

RTS/LI-00190-2