Source for standards, engineering specifications, manuals and technical publications

NOTE Throughout this standard, the abbreviation ACS (ASSEMBLY for construction site, see 3.1.101) is used for a low-voltage switchgear and controlgear assembly intended for use on construction and similar sites.
This part of 61439 defines the specific requirements of ACS as follows:
- ASSEMBLIES for which the rated voltage does not exceed 1 000 V in case of AC or 1 500 V in case of DC;
- ASSEMBLIES where the nominal primary voltage and the nominal secondary voltage of transformers incorporated in ACS are within the limits specified above;
- ASSEMBLIES intended for use on construction sites, both indoors and outdoors, i.e. temporary places of work to which the public do not generally have access and where building construction, installation, repairs, alteration or demolition of property (buildings) or civil engineering (public works) or excavation or any other similar operations are carried out;
- transportable (semi-fixed) or mobile ASSEMBLIES with enclosure.
The manufacture and/or assembly may be carried out other than by the original manufacturer.
This standard does not apply to individual devices and self-contained components, such as motor starters, fuse switches, electronic equipment, etc. which will comply with the relevant product standards.
This standard does not apply to ASSEMBLIES for use in the administrative centres of construction sites (offices, cloakrooms, ASSEMBLY rooms, canteens, restaurants, dormitories, toilets, etc.).
Requirements for electrical protection provided by equipment manufactured according to this International Standard are given in IEC 60364-7-704.

This part of IEC 60695 summarises the test methods that are used in the assessment of the corrosivity of fire effluent. It presents a brief summary of test methods in common use, either as international standards, national or industry standards. It includes special observations on their relevance, for electrotechnical products and their materials, to real fire scenarios and gives recommendations on their use.

IEC 60127-4:2026 relates to universal modular fuse-links (UMF) for printed circuits and other substrate systems, used for the protection of electric appliances, electronic equipment, and component parts thereof, normally intended to be used indoors. It does not apply to fuse-links for appliances intended to be used under special conditions, such as in a corrosive or explosive atmosphere. These fuses are normally intended to be mounted or replaced only by appropriately skilled persons using specialized equipment. This document applies in addition to the requirements of IEC 60127-1. The objectives of this part of IEC 60127 are as given in IEC 60127-1, with the additional requirement of a degree of non-interchangeability. This fourth edition cancels and replaces the third edition published in 2005, Amendment 1:2008 and Amendment 2:2012. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) align to IEC 60127-1:2023, third edition;
b) enhance the rated current of UMFs to 100A and provide the corresponding maximum voltage drop and maximum sustained dissipation;
c) modify the figures;
d) update the normative references to the latest version.
This International Standard is to be used in conjunction with IEC 60127-1:2023

IEC 60747-14-12:2026 specifies the performance test methods for CMOS imager-based gas sensors. It includes the terms and definitions, the test environmental conditions, the test system, the test methods, and the test report. This document is applicable to the performance test of both CMOS gas sensors based on lens-free imaging and CMOS gas sensors based on lens imaging.

This document is applicable to all types of water wells, whether for public or private use, abstracting from or injecting water to the groundwater, in a variety of applications. These include potable water abstraction, industrial use, irrigation, dewatering, aquifer recharge, and geothermal applications, or for groundwater observation (see Clause 13).
This document does not apply to horizontal wells, groundwater quality monitoring wells in potentially contaminated sites, and closed loop geothermal systems.
This document defines design requirements of water wells for public and private users in accordance with groundwater protection goals. It gives guidelines for all planning steps from preliminary to final executive project design.
A sequential method for designing and dimensioning a well is specified. Based on the hydrogeological conditions and the objectives of the well, a step-by-step process for dimensioning the well is defined. This methodology includes dimensioning for the drilling, filter packs, sealings and screens. Furthermore, selection of appropriate materials, the pump and all other additional well equipment is outlined. With regard to the planning process references are provided for drilling methods, geophysical well logging, well development and pumping tests.

This document covers the track and trace events for the return flow of e-Commerce items, more specifically, the events that are most useful to the original recipient (if any) and the E-Commerce company that sent the item in the first place.
It provides a minimum set of events formulated in language that is understood by sellers and buyers of E-Commerce products. The logistic service providers (LSPs) involved can "map" their own internal events to the events described in this document.
A return flow is always linked to a forward flow that is the subject of CEN/TS 18055-1.
This document aims to describe only those events that are related to the returns flow. Therefore, this document defines and describes the exact moment that the forward flows stop and the associated return flow starts.
This document covers the following four cases of return flows:
-   unsuccessful delivery (item remains in possession of the last mile operator);
-   return to sender or equivalent party (delivered and later returned parcel);
-   a service for recipients to send (parts of) a received shipment back;
-   returns caused by failure to meet regulatory or cross-border procedure requirements.
Each of these cases will be covered in separate clauses of the document.
NOTE   There are some processes in case 3 that need to occur before the parcel enters into the Returns Flow and they are generally executed by the E-Commerce company (or a party acting on its behalf) ).
This document will not describe those "precursor" processes in any detail, but it will describe the minimum requirements in terms of information needed by the first LSP to be able to start to execute the Return Flow effectively and efficiently. The precursor process is similar to the RMA (= Return Materials Authorization) process used in business-to-business environments.
This document does not cover the logistical flows within the facilities of the producers and sellers of the items. These fall outside the responsibility of the CEN/TC 331 domain.
This document does not cover all events necessary for an LSP to track items within its own facilities.

IEC 61800-9-1:2026 specifies the general methodology to energy efficiency standardization for any extended product by using the guidance of the extended product approach (EPA). It enables product committees for driven equipment connected to motor systems (so called extended products) to interface with the relative power losses of the connected motor system (e.g. power drive system) in order to calculate the system energy efficiency for the whole application. This is based on specified calculation models for speed/load profiles, the duty profiles and relative power losses of appropriate torque versus speed operating points. This document is applicable to motor systems operated by a motor starter or by a converter (power drive system). This document does not specify requirements for environmental impact declarations. Power drive systems designed to drive DC motors are not included in the scope of this document. This document is a group energy efficiency publication as defined in IEC Guide 118 with the energy efficiency function to establish a clear and simple system methodology for the comparison of the energy performance of motor systems to help product and system improvement.
This edition includes the following significant technical changes with respect to the previous edition:
a) addition of Annex D - Examples of indexing and evaluation of energy consumption;
b) correction of errors of symbols in several formulas and tables.

IEC 60728-103:2026 specifies the measuring methods, performance requirements and data publication requirements for active wideband equipment of cable networks for television signals, sound signals and interactive services with digital signals only.
This document:
- applies to all amplifiers used in cable networks;
- covers the frequency range 5 MHz to 3 000 MHz;
NOTE The upper limit of 3 000 MHz is an example, but not a strict value.
- applies to one-way and two-way equipment;
- specifies the basic methods of measurement of the operational characteristics of the active equipment in order to assess the performance of this equipment;
- identifies the performance specifications to be published by the manufacturers;
- states the minimum performance requirements of certain parameters.
While IEC 60728-3:2017 has served as a basis for its development, this document describes the methods of measurement for digital modulated signals only. It also covers the Data Over Cable Service Interface Specification (DOCSIS) 4.0 requirements with additional digital modulation schemes as well as for the extended frequency ranges:
- up to 1 794 MHz for the forward path;
- up to 684 MHz for the return path.
IEC 60728-3:2017, fifth edition, has served as a basis for the development of this document.

IEC 60704-2-7:2026 applies to electrical fans (including their accessories and their component parts) for household and similar use, designed for AC or DC supply.
The motor, the impeller and their housing, if any, form a single unit.
These particular requirements apply to:
– comfort fans (conventional and bladeless),
– table fans,
– pedestal fans,
– ceiling fans,
– wall bracket fans,
– ceiling bracket fans,
– louvre fans,
– tower fans,
– handheld fans,
– neckband fans,
– embedded fans,
– ventilating fans.
This document does not apply to:
– fans that are part of a central ventilation system,
– fans that are part of an appliance (for example cooling fans),
– fans with additional functions (for example heating, humidifying).
This third edition cancels and replaces the second edition published in 2020. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) alignment with IEC 60704-1:2021;
b) scope has been expanded to handheld, neckband and embedded fans;
c) positioning and mounting have been reworked;
d) test concept of partition ventilating fans has changed to measure both inlet and outlet side together.
This Part 2-7 is to be used in conjunction with IEC 60704-1:2021, Household and similar electrical appliances - Test code for the determination of airborne acoustical noise - Part 1: General requirements.

IEC 60704-2-8:2026 applies to electric shavers, hair clippers or trimmers for domestic and similar use. This document does not apply to shavers, hair clippers or trimmers that are powered by means other than electrical, for example by a spring-device. If possible, this document can also be applied to analogous electrically operated devices, such as depilating devices. This third edition cancels and replaces the second edition published in 2020. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) alignment with IEC 60704-1:2021;
b) stabilizing period and check of the battery status has been redefined;
c) position of the appliance during test has been redefined.
This Part 2-8 is intended to be used in conjunction with fourth edition of IEC 60704-1:2021, Household and similar electrical appliances - Test code for the determination of airborne acoustical noise - Part 1: General requirements.

This document specifies a spectrometric method for the determination of the chlorophyll content of rapeseed. It is not applicable to the determination of chlorophyll in oils.

IEC 62899-202-13:2026 specifies a test pattern as well as resistance and thickness measurement methods for the conductive layer in printed and in-mould-electronics.

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 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.

IEC 60115-8-10:2026 is applicable to the drafting of detail specifications for surface mount (SMD) low-power film resistors, classified to level G, based on the definition of the product classification levels in IEC 60115‑1:2020, 3.4. This edition includes the following significant technical changes with respect to the previous edition IEC 60115‑8‑1:2014: a) it supports solderability testing for both traditional lead-bearing soldering and up-to-date lead-free soldering, as required; b) it supports the provision of detailed visual acceptance criteria; c) it includes the requirement for a visual examination of the primary and proximity packaging; d) it provides for the inclusion of specific visual acceptance criteria, to be applied in addition to those given in Annex B of the sectional specification IEC 60115‑8:2023.