PRODUCT INFORMATION
INDEX
DATE
Dep. 2
IC-G-D-00-042e E
March 2015
SOUND PRESSURE LEVEL IN GAS ENGINES
2/3
Notes
-
Sound power levels obtained as per the
ISO 9614-2
standard.
-
Sound pressure levels measured at 1 m from the engine, calculated as per the
UNE-EN ISO-11203:1996
standard.
-
The uncertainty of the results is for class 3 determinations with a maximum standard deviation of
=
4
dB(A)
.
4.
NOISE EMISSION AT 1500 RPM
The following table shows the
sound pressure
distribution in octave frequency bands and the total sound level
with the engine running continuously at
1500 rpm and at 100% power
.
F/SFGLD/SFGM
ENGINES
180 240 360 480 560
LpA IN FREQUENCY
BANDS (
H
z)
125
250
500
1000
2000
4000
--
73
83
87
84
79
72
82
87
90
89
86
70
81
86
88
86
80
73
83
88
90
89
82
76
92
89
89
89
85
LpA,
dB(A)
90 95 92 95 97
HGM ENGINES
240
420
560
LpA IN FREQUENCY
BANDS (
H
z)
125
250
500
1000
2000
4000
73
83
85
88
92
89
71
81
84
87
90
89
73
83
85
88
92
89
LpA,
dB(A)
96 94 96
Notes
-
Sound power levels obtained as per the
ISO 9614-2
standard.
-
Sound pressure levels measured at 1 m from the engine, calculated as per the
UNE-EN ISO-11203:1996
standard.
-
The uncertainty of the results is for class 3 determinations with a maximum standard deviation of
=
4
dB(A)
.
1.18
O&M_2.002211.810_A_10_2016
