33.160.50 - Accessories

IEC 63034:2020 specifies the characteristics of microspeakers as well as the relevant test methods on microspeakers using steady-state sinusoidal signals, sinusoidal chirp, multi-tone or noise. The main characteristics include, but are not limited to, impedance, displacement, amplitude frequency response, distortion, and power handling.

The present document, together with ETSI EN 301 489-1 [1], covers the assessment of wireless microphones, similar
RF audio link equipment, cordless audio, including low power Band II transmitters and in-ear monitoring, intended for
the transmission of music and speech, and associated ancillary equipment, in respect of ElectroMagnetic Compatibility
(EMC).
Technical specifications related to the antenna port and emissions from the enclosure port of wireless microphones,
similar RF audio link ...view more

This part of IEC 60268 specifies methods of measurement for the electrical impedance,
sensitivity, directional response pattern, dynamic range and external influences of sound
system microphones, and also details the characteristics to be specified by the manufacturer.
It applies to sound system microphones for all applications for speech and music. It does not
apply to measurement microphones, but it does apply to each audio channel of microphones
having more than one channel, for example ...view more

NEW!IEC 60268-4:2018 is available as IEC 60268-4:2018 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 60268-4:2018 specifies methods of measurement for the electrical impedance, sensitivity, directional response pattern, dynamic range and external influences of sound system microphones, and also details the characteristics to be specified by the manufacturer. It applies to sound system microp...view more

IEC 60974-14:2018 specifies requirements for the verification of arc welding and external monitoring equipment. This document also serves for practical implementation of the verification procedure for arc welding equipment.
This document can be applied at the time of installation and any other times or intervals the user deems appropriate to ensure the equipment is capable of operating to the manufacturer’s specification or other specifications deemed applicable by the user.

IEC 60268-4:2018 is available as IEC 60268-4:2018 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
IEC 60268-4:2018 specifies methods of measurement for the electrical impedance, sensitivity, directional response pattern, dynamic range and external influences of sound system microphones, and also details the characteristics to be specified by the manufacturer. It applies to sound system microp...view more

This part 3 of EN 50332 specifies sound dose measurement, and the alerts associated, to reduce the risk of listeners developing hearing impairment when using a Personal Music Player (PMP). The standard does not cover exposure from other sources than PMPs.

The present document specifies technical characteristics and methods of measurements for Assistive Listening Devices
(ALDs) comprising personal hearing aid systems including inductive systems, personal sound amplifiers, and associated
accessories for ALDs, e.g. remote controls and audio streaming devices.
The present document applies to equipment operating on radio frequencies up to 3 GHz (as shown in table 1) using
analogue, digital and hybrid (using both analogue and digital) modulation.
...view more

The present document specifies the technical characteristics and methods of measurement for the following types of
equipment:
1) Assistive Listening Devices;
2) Radio Microphones;
3) In-ear Monitoring Systems;
4) WMAS (Wireless Multichannel Audio Systems;
5) Tour Guide Systems;
with Class C receivers which have significantly reduced performance requirements with respect to sensitivity, adjacent
channel selectivity, and receiver blocking compared to those with Class A receivers. It does n...view more

The present document specifies the technical characteristics and methods of measurement for the following types of
equipment:
a) Assistive Listening Devices (ALDs);
b) Radio Microphones;
c) In-Ear Monitoring Systems;
d) Wireless Multichannel Audio Systems (WMAS);
e) Tour Guide Systems;
with Class B receivers which have reduced performance requirements with respect to sensitivity, adjacent channel
selectivity, and receiver blocking compared to those with Class A receivers. It does not nec...view more

This part 3 of EN 50332 specifies sound dose measurement, and the alerts associated, to reduce the risk of listeners developing hearing impairment when using a Personal Music Player (PMP). The standard does not cover exposure from other sources than PMPs.

IEC corrigendum

REN/ERM-TG17-18-C1

IEC corrigendum

Applies to working standard microphones with removable protection grids meeting the requirements of EN 61094-4 and to laboratory standard microphones meeting the requirements of EN 61094-1. Describes methods of determining the pressure sensitivity by comparison with either a laboratory standard microphone that has been calibrated according to EN 61094-2, or another working standard microphone that has been calibrated according to this part of EN 61094.

This part of IEC 61094
• specifies a primary method of determining the complex free-field sensitivity of laboratory
standard microphones so as to establish a reproducible and accurate basis for the
measurement of sound pressure under free-field conditions,
• is applicable to laboratory standard microphones meeting the requirements of
IEC 610941,
• is intended for use by laboratories with highly experienced staff and specialized
equipment.
NOTE The calibration principle described in this ...view more

IEC 61094-3:2016 specifies a primary method of determining the complex free-field sensitivity of laboratory standard microphones so as to establish a reproducible and accurate basis for the measurement of sound pressure under free-field conditions. It is applicable to laboratory standard microphones meeting the requirements of IEC 61094-1. It is intended for use by laboratories with highly experienced staff and specialized equipment. This second edition cancels and replaces the first edition pub...view more

IEC 61730-1:2016 specifies and describes the fundamental construction requirements for photovoltaic (PV) modules in order to provide safe electrical and mechanical operation. Specific topics are provided to assess the prevention of electrical shock, fire hazards, and personal injury due to mechanical and environmental stresses. This part of IEC 61730 pertains to the particular requirements of construction. IEC 61730-2 defines the requirements of testing. This International Standard series lays d...view more

This International Standard applies to directional loudspeaker array systems of any kind, and
to the parts of which they are composed or which are used as auxiliaries in such systems.
This standard deals with the determination of the performance of directional loudspeaker
array systems, the comparison of these system types, and the determination of their proper
practical application, by listing the characteristics which are useful for their specification. It
specifies uniform measurement me...view more