BS EN IEC 60942:2018 - Electroacoustics. Sound calibrators

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BS EN IEC 60942:2018

Electroacoustics. Sound calibrators

Status : Current   Published : March 2018



IEC 60942:2017 is also available as

IEC 60942:2017 RLV

which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.

IEC 60942:2017 specifies the performance requirements for three classes of sound calibrator: class LS (Laboratory Standard), class 1 and class 2. Acceptance limits are smallest for class LS and greatest for class 2 instruments. Class LS sound calibrators are normally used only in the laboratory; class 1 and class 2 are considered as sound calibrators for field use. A class 1 sound calibrator is primarily intended for use with a class 1 sound level meter and a class 2 sound calibrator primarily with a class 2 sound level meter, as specified in IEC 61672-1. The acceptance limits for class LS sound calibrators are based on the use of a laboratory standard microphone, as specified in IEC 61094-1, for demonstrations of conformance to the requirements of this document. The acceptance limits for class 1 and class 2 sound calibrators are based on the use of a working standard microphone, as specified in IEC 61094-4, for demonstrations of conformance to the requirements of this document. This fourth edition cancels and replaces the third edition published in 2003, of which it constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:

a) deletion of the class designations, class LS/C, class 1/C and class 2/C;

b) addition of two further class designations, class LS/M and class 1/M, specifically for pistonphones;

c) addition of an amended criterion for assessing conformance to a specification: conformance is now demonstrated when (a) measured deviations from design goals do not exceed the applicable acceptance limits and (b) the uncertainty of measurement does not exceed the corresponding maximum-permitted uncertainty;

d) modification to the short-term level fluctuation test of the sound pressure level stability;

e) change to some environmental test conditions to avoid icing;

f) addition of an alternative test for immunity to radio-frequency fields using transverse electromagnetic (TEM) waveguides.

Standard NumberBS EN IEC 60942:2018
TitleElectroacoustics. Sound calibrators
Publication Date26 March 2018
Cross ReferencesEN 61094-4:1995, EN 55016-1-1, EN 61094-5, IEC 61672-1, EN ISO 266:1997, IEC 61000-6-3:2006, ISO 266:1997, EN 55016-2-3:2017, EN 55022:2006, EN 61000-6-2:2005, IEC 61094-1:2000, CISPR 22:2008, IEC 61000-6-3:2006/AMD1:2010, EN 61000-4-3:2006, IEC 60942:2003, IEC 61000-4-20:2010, EN 61000-6-1:2007, IEC 61000-4-3:2006, EN 61094-1:2000, IEC 61000-4-2:2008, EN 61000-6-3:2007/A1:2011/AC:2012, IEC 61000-6-2:2005, EN 61000-4-2:2009, IEC 61094-4:1995, CISPR 16-2-3:2006, IEC 61000-6-1:2005, ISO/IEC Guide 23:1982, EN 61000-6-3:2007, EN 61000-4-20:2010, EN 61672-1, VIM, CISPR 16-1-1, IEC 60050-801:1994, IEC 61094-5, ISO/IEC Guide 99, EN 60942 (IEC 60942:2003) AS, ISO/IEC Guide 98-4:2012, IEC 61094-2:2009, IEC 60942:2003, EN 61094-2 (IEC 61094-2:2009) AS, OIML R 97:1990
ReplacesBS EN 60942:2003
International RelationshipsEN 60974-12:2011,EN IEC 60942:2018,IEC 60942:2017
Draft Superseded By15/30326444 DC
DescriptorsAcoustoelectric devices, Sound sources, Performance testing, Sound intensity, Acoustic measurement, Signal distortion, Performance, Grades (quality), Acoustic testing, Accuracy, Approval testing, Environment (working), Acoustic equipment, Frequencies, Calibration, Sound-level meters, Measurement characteristics, Sound generators, Stability
Title in FrenchÉlectroacoustique. Calibreurs acoustiques
Title in GermanElektroakustik. Schallkalibratoren
ISBN978 0 580 90820 0
File Size1.309 MB

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