SN EN ISO 11957:2010
Current
The latest, up-to-date edition.
Hardcopy
01-01-2010
1 Scope
2 Normative references
3 Definitions
4 Test environment and choice of suitable
quality
5 instrumentation
6 Measurement of sound insulation performance in the
laboratory
6.1 General
6.2 Cabin location
6.3 Cabin mounting and conditions
6.4 Measurement of the sound pressure level in the
room
6.5 Measurement of the sound pressure level inside
the cabin
6.6 Sound pressure insulation, Dp
6.7 Measurement of noise inside the cabin due to
noise sources forming an integral part of the
cabin (internal noise level, LpA)
7 Measurement of sound insulation performance in situ
7.1 General
7.2 External sound field
7.3 Cabin mounting and conditions
7.4 Microphone positions in the room
7.5 Microphone positions inside the cabin
7.6 Apparent sound pressure insulation, D'p
7.7 Measurement of noise inside the cabin due to
noise sources forming an integral part of the
cabin (internal noise level, LpA)
8 Weighted sound pressure insulation
9 Estimated cabin noise insulation for a specific
noise spectrum
10 Uncertainty
11 Information to be recorded
11.1 Test object
11.2 Test conditions
11.3 Instrumentation
11.4 Acoustical data
11.5 Further information
12 Information to be reported
Annexes
A Estimated cabin noise insulation for a specific noise
spectrum
B Bibliography
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