Measurement
All sound data quoted has been measured in the third-octave band limited values, using
a Real Time Analyser calibrated sound intensity meter in accordance with
BS EN ISO9614 Part 1: 1995.
All Sound Power Levels quoted are calculated from measured sound intensity according
BS EN ISO9614 Part 1: 1995.
Sound
Overall
dB(A)
Frequency (Hz) dB
Measurement 63 125 250 500 1000 2000 4000 8000
CR12
Power 74 72 83 76 68 68 65 60 50
Pressure @10m 46 44 55 48 40 40 37 32 22
CR16
Power 74 72 83 76 68 68 65 60 50
Pressure @10m 46 44 55 48 40 40 37 32 22
CR22/DR10
Power 78 82 87 74 74 73 70 63 62
Pressure @10m 50 54 59 46 46 45 42 35 34
Power 82 83 80 82 79 78 74 67 59
CR26/DR12
Pressure @10m 54 55 52 54 51 50 46 39 31
CR30/DR15
Power 78 82 87 74 74 73 70 63 62
Pressure @10m 50 54 59 46 46 45 42 35 34
Power 82 83 80 82 79 78 74 67 59
CR35/DR20
Pressure @10m 54 55 52 54 51 50 46 39 31
CR50/DR25
Power 81 85 90 77 77 76 73 66 65
Pressure @10m 53 57 62 49 49 48 45 38 37
Power 85 86 83 85 82 81 77 70 62
CR60/DR30
Pressure @10m 57 58 55 57 54 53 49 42 34
CR65/DR35
Power 81 85 90 77 77 76 73 66 65
Pressure @10m 53 57 62 49 49 48 45 38 37
Power 85 86 83 85 82 81 77 70 62
CR75/DR45
Pressure @10m 57 58 55 57 54 53 49 42 34
CR80/DR40
Power 83 80 90 80 77 79 75 68 67
Pressure @10m 55 52 62 52 49 51 47 40 39
Power 87 88 85 87 84 83 79 72 64
CR95/DR50
Pressure @10m 59 60 57 59 56 55 51 44 36
CR105/DR55
Power 82 80 90 80 77 79 75 68 67
Pressure @10m 55 52 62 52 49 51 47 40 39
Power 87 88 85 87 84 83 79 72 64
CR130/DR70
Pressure @10m 59 60 57 59 56 55 51 44 36
Power 84 81 90 81 78 81 77 70 69
CR140/DR75
Pressure @10m 56 53 62 53 50 53 49 42 41
Power 88 89 86 88 85 84 80 73 65
CR165/DR95
Pressure @10m 60 61 58 60 57 56 52 45 37
OUTDOOR