Document ID: chunk:federal_register_of_legislation:F2005L03990:front:0:p28
Version: federal_register_of_legislation:F2005L03990
Segment Type: other
Provision Reference: 
Character Range: 69522–69995

a suitable multiple of the chosen unit (for example, 1, 2, 5, 10, 20 millimetres). SI units shall be used, except for vehicle velocity, where km/h may be used, and for accelerations due to impact where g, with g = 9.81 m/s2, may be used.

Figure 1.
Frequency response curve

 CFC   FL       FH     FN     N  Logarithmic scale
       Hz       Hz     Hz

a       0.5    dB
b      +0.5;-1  dB
c      +0.5;-4  dB
1,000   0.1     1,000  1,650  d  -9                 dB/octave