NF EN 61252 : 1995 AMD 2 2017
Current
The latest, up-to-date edition.
ELECTROACOUSTICS - SPECIFICATIONS FOR PERSONAL SOUND EXPOSURE METERS
12-01-2013
Committees responsible
National foreword
Introduction
Specification
1 Scope
2 Normative references
3 Definitions
4 General performance requirements
5 Reference conditions
6 Absolute acoustical sensitivity
7 Frequency weighting
8 Linearity of response to steady signals
9 Response to short-duration signals
10 Response to unipolar pulses
11 Latching overload indicator
12 Sensitivity to various environments
13 Instrument marking
14 Instruction manual
Annexes
A (informative) Sound exposures and corresponding
normalized 8-h-average sound levels
B (informative) Recommended tests to verify the
performance of a personal sound exposure meter
Tables
1 Design-goal A-frequency weighting relative to
response at 1 kHz and the tolerances delta A that
apply to the performance of a complete personal
sound exposure meter
A.1 Sound exposures and corresponding normalized 8-h-
average sound levels
B.1 Minimum set of target conditions for 1 kHz steady-
signal linearity tests
B.2 Conditions for testing response to short-duration
signals
Figure
1 Functional elements of a personal sound exposure
meter
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