UNE-EN IEC 60942:2018
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Electroacoustics - Sound calibrators (Endorsed by Asociación Española de Normalización in April of 2018.)
Hardcopy , PDF
English
01-04-2018
06-02-2019
This International Standard 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 International Standard. 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 International
Standard.
To promote consistency of testing of sound calibrators and ease of use, this International
Standard contains three normative Annexes - Annex A Pattern evaluation tests , Annex B
Periodic tests , Annex C Pattern evaluation report , and two informative Annexes - Annex D
Relationship between tolerance interval, corresponding acceptance interval and the maximum
permitted uncertainty of measurement and Annex E Example assessments of conformance to
specifications of this International Standard .
This International Standard does not include requirements for equivalent free-field or random201
incidence sound pressure levels, such as can be used in the overall sensitivity adjustment of a
sound level meter.
A sound calibrator may provide other functions, for example, tonebursts. Requirements for
these other functions are not included in this International Standard.
| Committee |
CTN 209/SC 29
|
| DocumentType |
Standard
|
| Pages |
64
|
| PublisherName |
Asociación Española de Normalización
|
| Status |
Superseded
|
| Standards | Relationship |
| EN IEC 60942:2018 | Identical |
| BS 622:1967 | Identical |
| IEC 60942:2017 | Identical |
| DIN EN IEC 60942:2018-07 | Equivalent |
| BS EN IEC 60942:2018 | Equivalent |
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