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17 Metrology and measurement. Physical phenomena
New standards
EVS-EN IEC 60704-2-20:2026
Household and similar electrical appliances - Test code for the determination of airborne acoustical noise - Part 2-20: Particular requirements for wet hard floor cleaning appliances
Scope: IEC 60704-2-20:2026 specifies the determination of airborne acoustical noise of mains operated and cordless wet hard floor cleaning appliances for household or similar use. In the case of appliances with combined functionality, this document only addresses the wet cleaning functionality. This document does not apply to wet hard floor cleaning appliances for industrial or professional purposes and robotic wet hard floor cleaning appliances. This document is not intended for cleaning appliances according to IEC 60335-2-79, IEC 60704-2-1, IEC 60704-2-17. This document describes the determination of the noise emission of wet hard floor cleaners under normal operating conditions on hard floor in accordance with 4.6 of IEC/ASTM 62885-6:2023. For determining and verifying noise emission values declared in product specifications, see IEC 60704-3. This document is intended 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.
Base documents: IEC 60704-2-20:2026; EN IEC 60704-2-20:2026
EVS-EN IEC 62127-3:2023/A1:2026
Ultrasonics - Hydrophones - Part 3: Properties of hydrophones for ultrasonic fields
Scope: Amendment to EN IEC 62127-3:2023
Base documents: IEC 62127-3:2022/AMD1:2026; EN IEC 62127-3:2023/A1:2026
IEC TR 63145-400-20:2026
Eyewear display - Part 400-20: Introduction to sensing functions - 3D sensing
Scope: IEC TR 63145-400-20:2026, which is a Technical Report, provides general information, main features and applications of 3D sensing used for eyewear display, and to clarify the normative aspects of the standardization in this technology area.
The 3D sensing techniques mentioned in this document are mainly based on optical, non-contact principles.
Base documents:
IEC TS 62749:2026
Assessment of power quality - Characteristics of electricity supplied by public networks
Scope: IEC TS 62749:2026 specifies the expected characteristics of electricity at the point of supply of public low, medium and high voltage, 50 Hz or 60 Hz, networks, as well as power quality assessment methods. This document does not apply for systems operated above 230 kV.
The boundaries between the various voltage levels can be different for different countries or regions. In the context of this document, the following terms for system voltage are used:
- low voltage (LV) refers to UN ≤ 1 kV;
- medium voltage (MV) refers to 1 kV
- high voltage (HV) refers to 35 kV
Because of existing network structures, in some countries or regions, the boundary between medium and high voltage can be different. While power quality is related to EMC in a number of ways, especially because compliance with power quality requirements depends on the control of cumulative effect of electromagnetic emission from all or multiple equipment and installations, this document is not an EMC publication (see also Annex E).
This third edition cancels and replaces the second edition published in 2020. This edition includes the following significant technical changes with respect to the previous edition:
- clarification that harmonic orders recommended in this document are up to 40th;
- 4.6 is modified accordingly;
- iteration that this document does not apply for systems operated above 230 kV;
- deletion of Annex C;
- improvement of 4.10;
- update of profiles and addition of new profiles;
- modifications to align with EN 50160:2022 and EN 50160:2022/AMD1:2025.
Base documents:
Replaced standards
IEC TS 62749:2020
Assessment of power quality - Characteristics of electricity supplied by public networks
Scope: IEC TS 62749:2020 specifies the expected characteristics of electricity at the SUPPLY TERMINALS of public low, medium and high voltage, 50 Hz or 60 Hz, networks.
NOTE 1 The boundaries between the various voltage levels can be different for different countries/regions. In the context of this TS, the following terms for system voltage are used:
- low voltage (LV) refers to less than or equal to 1 kV;
- medium voltage (MV) refers to between 1 kV and 35 kV;
- high voltage (HV) refers to between 35 kV and 230 kV.
While power quality is related to EMC in a number of ways this document is not an EMC publication. This second edition cancels and replaces the first edition published in 2015. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) minimum number of remaining data for weekly analysis,
b) improvement of the compatibility between EN 50160 and IEC TS 62749,
c) further explanation of the conception of daily sliding window,
d) further explanation of the aggregation method used for events,
e) further explanation of the relation between Power Quality and EMC,
f) addition of a new definition of mains communicating system (MCS),
g) addition of a new Annex G: Other phenomena,
h) transfer of the main content of IEC TR 62510 to IEC TS 62749.
Base documents:
Drafts
prEN ISO 1042
Laboratory glassware - One-mark volumetric flasks (ISO/DIS 1042:2026)
Scope: This document specifies requirements for an internationally acceptable series of one-mark volumetric flasks, suitable for general laboratory purposes.
The specifications in this document are in accordance with ISO 384 and with OIML Recommendation No. 4
[1].
Base documents: ISO/DIS 1042; prEN ISO 1042
prEN IEC 60704-2-17:2026
Household and similar electrical appliances - Test code for the determination of airborne acoustical noise - Part 2-17: Particular requirements for floor cleaning robots
Scope: This document specifies the determination of airborne acoustical noise to electrical floor cleaning robots including their accessories, docking stations and their component parts for
household use or under conditions similar to those in households.
This document describes the determination of the noise emission of floor cleaning robots under
normal operating conditions on carpet and hard floors.
This document does not apply to cleaning robots for industrial or professional purposes,
manually operated vacuum cleaners and cleaning robots for outdoor use.
Base documents: 59F/561/CDV; prEN IEC 60704-2-17:2026