Infoteenus
17 METROLOOGIA JA MÕÕTMINE. FÜÜSIKALISED NÄHTUSED
Uued standardid
EVS-EN IEC 62301:2026
Measurement of standby power for appliances and equipment
Käsitlusala: This document specifies methods of measurement of electrical power in standby mode(s) and other non-active modes (such as off mode) and the reporting of the results.
The measurement of power and energy use in networked standby mode, is covered by IEC 63474:2026.
This document applies to electronic and electrical equipment powered by:
– low voltage AC power (LV ≤ 1 000 V AC), or
– low voltage DC power (LV ≤ 1 500 V DC) that is ripple-free, measured between conductors or between a conductor and earth, or
– extra low voltage AC power (ELV ≤ 50 V AC), or
– extra low voltage DC power (ELV ≤ 120 V DC) that is ripple-free, measured between conductors or between a conductor and earth, or
– an external power supply that provides low voltage or extra low voltage AC or DC power, or – a separate source of extra low voltage DC power, or
– an internal main battery.
Conditions that are out of scope:
– active modes (primary function)
– networked standby mode (which is covered by IEC 63474:2026)
– conditions where main batteries are being charged other than in maintenance mode
– disconnected condition of the equipment.
This document applies to the following product groups where a non-active mode is present:
– household appliances, electrical and electronic equipment such as information technology equipment, audio, video and multimedia systems and equipment,
– gas burning equipment with electrical components.
NOTE 1 The measurement of power, energy use and performance of products during their intended use (when performing their primary functions) are generally specified in product standards and are not covered by this document.
Where this document is referenced by performance standards or procedures, these are to define and name the relevant non-active mode to which this test procedure is applied.
NOTE 2 Non-active modes for lighting equipment and the measurement of power is specified in IEC 63103 [2].
NOTE 3 Edge equipment can also include auxiliary batteries.
Annex A shows the conceptual framework of power modes and functions.
This document does not specify safety requirements. It does not specify minimum performance requirements nor does it set maximum limits on power or energy use.
This group energy efficiency publication is primarily intended to be used as an energy efficiency standard for the products mentioned in the scope, but is also intended to be used by TCs in the preparation of publications for products which are included in the boundary mentioned in the scope of this document.
The measurement of power and energy use in networked standby mode, is covered by IEC 63474:2026.
This document applies to electronic and electrical equipment powered by:
– low voltage AC power (LV ≤ 1 000 V AC), or
– low voltage DC power (LV ≤ 1 500 V DC) that is ripple-free, measured between conductors or between a conductor and earth, or
– extra low voltage AC power (ELV ≤ 50 V AC), or
– extra low voltage DC power (ELV ≤ 120 V DC) that is ripple-free, measured between conductors or between a conductor and earth, or
– an external power supply that provides low voltage or extra low voltage AC or DC power, or – a separate source of extra low voltage DC power, or
– an internal main battery.
Conditions that are out of scope:
– active modes (primary function)
– networked standby mode (which is covered by IEC 63474:2026)
– conditions where main batteries are being charged other than in maintenance mode
– disconnected condition of the equipment.
This document applies to the following product groups where a non-active mode is present:
– household appliances, electrical and electronic equipment such as information technology equipment, audio, video and multimedia systems and equipment,
– gas burning equipment with electrical components.
NOTE 1 The measurement of power, energy use and performance of products during their intended use (when performing their primary functions) are generally specified in product standards and are not covered by this document.
Where this document is referenced by performance standards or procedures, these are to define and name the relevant non-active mode to which this test procedure is applied.
NOTE 2 Non-active modes for lighting equipment and the measurement of power is specified in IEC 63103 [2].
NOTE 3 Edge equipment can also include auxiliary batteries.
Annex A shows the conceptual framework of power modes and functions.
This document does not specify safety requirements. It does not specify minimum performance requirements nor does it set maximum limits on power or energy use.
This group energy efficiency publication is primarily intended to be used as an energy efficiency standard for the products mentioned in the scope, but is also intended to be used by TCs in the preparation of publications for products which are included in the boundary mentioned in the scope of this document.
Alusdokumendid: IEC 62301:2026; EN IEC 62301:2026
Asendab: EVS-EN 50564:2011
ISO/IEC Guide 98-3:2008/Amd 1:2026
Uncertainty of measurement — Part 3: Guide to the expression of uncertainty in measurement (GUM:1995) — Amendment 1: Nonlinearity in measurement models
Käsitlusala: Amendment to ISO/IEC Guide 98-3:2008
Alusdokumendid:
ISO/IEC Guide 98-5:2026
Guide to the expression of uncertainty in measurement — Part 5: Examples
Käsitlusala:
Alusdokumendid:
IEC 60909-0:2026
Short-circuit currents in three-phase AC systems - Part 0: Calculation of currents
Käsitlusala: IEC 60909-0:2026 This part of IEC 60909 is applicable to the calculation of short-circuit currents in low-voltage three-phase AC systems, in high-voltage three-phase AC systems, and operating at a nominal frequency of 50 Hz or 60 Hz.
Systems at highest voltages of 550 kV and above with long transmission lines are outside the scope of this document.
Systems at highest voltages of 550 kV and above with long transmission lines are outside the scope of this document.
Alusdokumendid:
Asendab: IEC 60909-0:2016
IEC 60645-6:2022/AMD1:2026
Amendment 1 - Electroacoustics - Audiometric equipment - Part 6: Instruments for the measurement of otoacoustic emissions
Käsitlusala:
Alusdokumendid:
IEC 60645-6:2022+AMD1:2026 CSV
Electroacoustics - Audiometric equipment - Part 6: Instruments for the measurement of otoacoustic emissions
Käsitlusala: IEC 606045-6:2022+AMD1:2026 CSV applies to instruments designed primarily for the measurement of otoacoustic emissions in the human external auditory meatus evoked by acoustic probe stimuli. This document defines the characteristics to be specified by the manufacturer, specifies minimum mandatory functions for two types of instruments and provides performance specifications applicable to both instrument types. This document describes methods to be used to demonstrate conformance with the specifications in this document and guidance on methods for periodic calibration. The purpose of this document is to ensure that measurements made under comparable test conditions with different instruments complying with this document will be consistent. Instruments can provide a measurement function not specifically within the scope of this document and still comply with the relevant requirements of this document for the functions that are within the scope. This document is not intended to restrict development or incorporation of new features, nor to discourage innovative approaches. IEC 606045-6:2022 cancels and replaces the first edition published in 2009. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) the nominal test frequency used in DPOAE is now defined as the higher of the two frequencies, f2;
b) the permitted deviation of the stimulus signal for TEOAE has been specified;
c) the frequency range for DPOAE stimulus signals has been redefined,
d) the stimulus level requirements for TEOAE have been redefined;
e) the stimulus level requirements for DPOAE have been redefined;
f) the harmonic distortion requirements for DPOAE have been redefined;
g) a minimum measurement range for DPOAE has been added.
This edition includes the following significant technical changes with respect to the previous edition:
a) the nominal test frequency used in DPOAE is now defined as the higher of the two frequencies, f2;
b) the permitted deviation of the stimulus signal for TEOAE has been specified;
c) the frequency range for DPOAE stimulus signals has been redefined,
d) the stimulus level requirements for TEOAE have been redefined;
e) the stimulus level requirements for DPOAE have been redefined;
f) the harmonic distortion requirements for DPOAE have been redefined;
g) a minimum measurement range for DPOAE has been added.
Alusdokumendid:
IEC 63580:2026
Measuring equipment for electrical and electromagnetic quantities - Environmental aspects
Käsitlusala: IEC 63580:2026 provides guidance to manufacturers of measuring equipment for electrical and electromagnetic quantities (ME3Q) in evaluating and improving the environmental impact of their products, and in enabling effective communication using common references for environmental information throughout the supply chain.
This document covers only the below fixed installed measuring equipment:
IEC 61557-12, power metering and monitoring devices (PMD);
IEC 62586-1, power quality instruments (PQI);
IEC 60688, transducers (TRD);
IEC 62974-1, devices for data management (DDM).
This document covers only the below fixed installed measuring equipment:
IEC 61557-12, power metering and monitoring devices (PMD);
IEC 62586-1, power quality instruments (PQI);
IEC 60688, transducers (TRD);
IEC 62974-1, devices for data management (DDM).
Alusdokumendid:
IEC TR 62669:2026
Case studies supporting IEC 62232 - Determination of RF field strength, power density and SAR in the vicinity of radiocommunication base stations for the purpose of evaluating human exposure
Käsitlusala: IEC TR 62669:2026 presents a series of case studies in which electromagnetic field (EMF) exposure is evaluated in accordance with IEC 62232:2025 [1]. The case studies presented in this document involve intentionally radiating base stations (BSs). The BS transmits on one or more antennas using one or more frequencies in the range 110 MHz to 300 GHz. RF exposure assessments consider, as a minimum, the contribution of ambient sources in at least the 100 kHz to 300 GHz frequency range.
Case studies presented in this document illustrate typical usage of IEC 62232:2025 for the RF exposure assessments of the most common BS types, deployed in mobile and wireless networks, such as small cells, street cells, macro BSs, and parabolic dish antennas used for wireless transmission or mobile backhaul. Many case studies also illustrate the implementation of the actual maximum approach and RF exposure assessment of massive multiple-input, multiple-output (mMIMO) BSs, which are deployed in operational mobile networks, such as 5G.
The case studies are provided for guidance only and are not a substitute for a thorough understanding of the requirements of IEC 62232:2025. Based on the technical outcome and lessons learned from each case study, suggestions are made about RF assessment topics to be considered in the next edition of IEC 62232. New assessment techniques for metrics specified in ICNIRP-2020 [2], such as whole-body average SAR (wbSAR) above 10 GHz and absorbed power density (APD), are also introduced.
NOTE 1 Trade names and trademarks of measurement equipment and computation tools given in this document and in the attached test reports are examples of suitable products available commercially. This information is given for the convenience of users of this document and does not constitute an endorsement by IEC of these products.
NOTE 2 The lower frequency considered for ambient sources, 100 kHz, is derived from ICNIRP-2020 [2] and ICNIRP-1998 [3]. Some applicable exposure limit guidelines, however, require ambient fields to be evaluated as low as 3 kHz, e.g. IEEE Std C95.1-2019 [4] and Safety Code 6 [5].
This third edition cancels and replaces the second edition published in 2019. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) additional case studies and technical updates illustrating the implementation of IEC 62232:2025;
b) general implementation of the actual maximum approach for beamforming antennas;
c) validation of power or EIRP control features;
d) in-situ measurement and implementation of extrapolation methods;
e) introduction of emerging laboratory measurement methods for product compliance assessments.
Case studies presented in this document illustrate typical usage of IEC 62232:2025 for the RF exposure assessments of the most common BS types, deployed in mobile and wireless networks, such as small cells, street cells, macro BSs, and parabolic dish antennas used for wireless transmission or mobile backhaul. Many case studies also illustrate the implementation of the actual maximum approach and RF exposure assessment of massive multiple-input, multiple-output (mMIMO) BSs, which are deployed in operational mobile networks, such as 5G.
The case studies are provided for guidance only and are not a substitute for a thorough understanding of the requirements of IEC 62232:2025. Based on the technical outcome and lessons learned from each case study, suggestions are made about RF assessment topics to be considered in the next edition of IEC 62232. New assessment techniques for metrics specified in ICNIRP-2020 [2], such as whole-body average SAR (wbSAR) above 10 GHz and absorbed power density (APD), are also introduced.
NOTE 1 Trade names and trademarks of measurement equipment and computation tools given in this document and in the attached test reports are examples of suitable products available commercially. This information is given for the convenience of users of this document and does not constitute an endorsement by IEC of these products.
NOTE 2 The lower frequency considered for ambient sources, 100 kHz, is derived from ICNIRP-2020 [2] and ICNIRP-1998 [3]. Some applicable exposure limit guidelines, however, require ambient fields to be evaluated as low as 3 kHz, e.g. IEEE Std C95.1-2019 [4] and Safety Code 6 [5].
This third edition cancels and replaces the second edition published in 2019. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) additional case studies and technical updates illustrating the implementation of IEC 62232:2025;
b) general implementation of the actual maximum approach for beamforming antennas;
c) validation of power or EIRP control features;
d) in-situ measurement and implementation of extrapolation methods;
e) introduction of emerging laboratory measurement methods for product compliance assessments.
Alusdokumendid:
Asendab: IEC TR 62669:2019
Asendatud standardid
IEC 60909-0:2016
Short-circuit currents in three-phase a.c. systems - Part 0: Calculation of currents
Käsitlusala: IEC 60909-0:2016 is applicable to the calculation of short-circuit currents in low-voltage three-phase AC systems, and in high-voltage three-phase AC systems, operating at a nominal frequency of 50 Hz or 60 Hz. It establishes a general, practicable and concise procedure leading to results which are generally of acceptable accuracy and deals with the calculation of short-circuit currents in the case of balanced or unbalanced short circuits. This second edition cancels and replaces the first edition published in 2001. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- contribution of windpower station units to the short-circuit current;
- contribution of power station units with ful size converters to the short-circuit current;
- new document structure.
This publication is to be read in conjunction with IEC TR 60909-1:2002, IEC TR 60909-2:2008, IEC 60909-3:2009 and IEC TR 60909-4:2000.
- contribution of windpower station units to the short-circuit current;
- contribution of power station units with ful size converters to the short-circuit current;
- new document structure.
This publication is to be read in conjunction with IEC TR 60909-1:2002, IEC TR 60909-2:2008, IEC 60909-3:2009 and IEC TR 60909-4:2000.
Alusdokumendid:
Asendatud: IEC 60909-0:2026
IEC TR 62669:2019
Case studies supporting IEC 62232 - Determination of RF field strength, power density and SAR in the vicinity of radiocommunication base stations for the purpose of evaluating human exposure
Käsitlusala: IEC/TR 62669:2019(E) is a Technical Report. This document presents a series of case studies in which electromagnetic (EM) fields are evaluated in accordance with IEC 62232:2017. The case studies presented in this document involve intentionally radiating base stations (BS). The BS transmit on one or more antennas using one or more frequencies in the range 110 MHz to 100 GHz and RF exposure assessments take into account the contribution of ambient sources at least in the 100 kHz to 300 GHz frequency range.
Each case study has been chosen to illustrate a typical BS evaluation scenario and employs the methods detailed in IEC 62232:2017. The case studies are provided for guidance only and are not a substitute for a thorough understanding of the requirements of IEC 62232:2017. Based on the lessons learned from each case study, recommendations about RF assessment topics to be considered in the next revision of IEC 62232 are proposed. The methodologies and approaches described in this document are useful for the assessment of early 5G products introduced for consumer trials or deployments.
This document provides background and rationale for applying a compliance approach based on the actual maximum transmitted power or EIRP. Guidance for collecting and analysing information about the transmitted power of a base station and evaluating its actual maximum RF exposure based on modelling studies or measurement studies on operational sites (in networks, sub-networks or field trials) is also presented.
Each case study has been chosen to illustrate a typical BS evaluation scenario and employs the methods detailed in IEC 62232:2017. The case studies are provided for guidance only and are not a substitute for a thorough understanding of the requirements of IEC 62232:2017. Based on the lessons learned from each case study, recommendations about RF assessment topics to be considered in the next revision of IEC 62232 are proposed. The methodologies and approaches described in this document are useful for the assessment of early 5G products introduced for consumer trials or deployments.
This document provides background and rationale for applying a compliance approach based on the actual maximum transmitted power or EIRP. Guidance for collecting and analysing information about the transmitted power of a base station and evaluating its actual maximum RF exposure based on modelling studies or measurement studies on operational sites (in networks, sub-networks or field trials) is also presented.
Alusdokumendid:
Asendatud: IEC TR 62669:2026
Kavandid
prEN ISO 13160
Water quality - Strontium 90 and strontium 89 - Test methods using liquid scintillation counting or proportional counting (ISO/DIS 13160:2026)
Käsitlusala: Warning — Persons using this document should be familiar with normal laboratory practice. This document does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user to establish appropriate safety and health practices and to determine the applicability of any other restrictions.
Warning — It is absolutely essential that tests conducted according to this document be carried out by suitably trained staff.
This document specifies methods to determine 90Sr and 89Sr by liquid scintillation counting (LSC) or proportional counting (PC) in supply water, drinking water, rainwater, surface and ground water, marine water, as well as cooling water, industrial water, domestic, and industrial wastewater after proper sampling, handling and test sample preparation.
The detection limit depends on the sample volume, the instrument used, the sample counting time, the background count rate, the detection efficiency and the chemical yield. The method described in this document, using currently available LSC and PC instruments, has a detection limit of approximately 2 mBq·l−1 and 10 mBq·l−1 for 90Sr and 89Sr, respectively, for a volume of 2 l and a measuring time of 60 000 s, which is lower than the WHO criteria for safe consumption of drinking water (100 Bq·l−1 for 89Sr and 10 Bq·l−1 for 90Sr)[4].
The methods described in this document are applicable in the event of an emergency situation. When contamination contains fresh fission products, the contribution of 89Sr to the total amount of radioactive Sr is not negligible. This document provides test methods to determine the activity concentration of 90Sr in presence of 89Sr, and to determine the activity concentration of 90Sr in large volume of water sample (>50 L).
The analysis of 90Sr and 89Sr adsorbed to suspended matter is not covered by this method. Filtration of the test sample and a chemical separation are required to separate and purify Sr from a test portion of the sample as the analysis of 90Sr and 89Sr adsorbed to suspended matter is not covered by this method.
It is the user’s responsibility to ensure the validity of this test method selected for the water samples tested.
Warning — It is absolutely essential that tests conducted according to this document be carried out by suitably trained staff.
This document specifies methods to determine 90Sr and 89Sr by liquid scintillation counting (LSC) or proportional counting (PC) in supply water, drinking water, rainwater, surface and ground water, marine water, as well as cooling water, industrial water, domestic, and industrial wastewater after proper sampling, handling and test sample preparation.
The detection limit depends on the sample volume, the instrument used, the sample counting time, the background count rate, the detection efficiency and the chemical yield. The method described in this document, using currently available LSC and PC instruments, has a detection limit of approximately 2 mBq·l−1 and 10 mBq·l−1 for 90Sr and 89Sr, respectively, for a volume of 2 l and a measuring time of 60 000 s, which is lower than the WHO criteria for safe consumption of drinking water (100 Bq·l−1 for 89Sr and 10 Bq·l−1 for 90Sr)[4].
The methods described in this document are applicable in the event of an emergency situation. When contamination contains fresh fission products, the contribution of 89Sr to the total amount of radioactive Sr is not negligible. This document provides test methods to determine the activity concentration of 90Sr in presence of 89Sr, and to determine the activity concentration of 90Sr in large volume of water sample (>50 L).
The analysis of 90Sr and 89Sr adsorbed to suspended matter is not covered by this method. Filtration of the test sample and a chemical separation are required to separate and purify Sr from a test portion of the sample as the analysis of 90Sr and 89Sr adsorbed to suspended matter is not covered by this method.
It is the user’s responsibility to ensure the validity of this test method selected for the water samples tested.
Alusdokumendid: ISO/DIS 13160; prEN ISO 13160
prEN IEC 60704-2-14:2026
Household and similar electrical appliances - Test code for the determination of airborne acoustical noise - Part 2-14: Particular requirements for refrigerating appliances
Käsitlusala: Addition:
These particular requirements apply to refrigerating appliances (fitted with their accessories) for household and similar use, supplied from the mains or from batteries.
NOTE This document does not apply to air conditioners.
These particular requirements apply to refrigerating appliances (fitted with their accessories) for household and similar use, supplied from the mains or from batteries.
NOTE This document does not apply to air conditioners.
Alusdokumendid: 59M/198/CDV; prEN IEC 60704-2-14:2026
prEN IEC 60216-4:2026
Electrical insulating materials - Thermal endurance properties - Part 4: Ageing ovens
Käsitlusala: This part of IEC 60216 covers minimum requirements for ventilated and electrically heated ovens with or without forced air circulation, for thermal endurance evaluation of electrical insulation. From design prospective this document covers either single-chamber or multi-chamber ovens.
It covers ovens designed to operate over all or part of the temperature range from 20 °C above ambient to 500 °C.
It gives acceptance tests and in-service monitoring tests for these ageing ovens.
It covers ovens designed to operate over all or part of the temperature range from 20 °C above ambient to 500 °C.
It gives acceptance tests and in-service monitoring tests for these ageing ovens.
Alusdokumendid: 112/732/CDV; prEN IEC 60216-4:2026
prEN IEC 60243-2:2026
Electric strength of insulating materials - Test methods - Part 2: Additional requirements for tests using direct voltage
Käsitlusala: This part of IEC 60243 gives requirements additional to those in IEC 60243-1:2013 for the determination of the electric strength of solid insulating materials under direct voltage stress.
Alusdokumendid: 112/733/CDV; prEN IEC 60243-2:2026