Sordin left/RIGHT CC Manual Del Usuario página 8

ATTENUATION DATA (Table 1)
Responsible manufacturer: Sordin AB, Rörläggarvägen 8, SE-331 53 Värnamo, Sweden, tel: +46-370-69
35 50.
f = Frequencies at which attenuation is measured
M = Mean value
f
s = Standard deviation
f
APV (M –s ) = Assumed Protection Value
f f
H = High frequency attenuation value (predicted noise level reduction for noise where L
M = Medium frequency attenuation value (predicted noise level reduction for noise where L
L = Low frequency attenuation value (predicted noise level reduction for noise where L
SNR = Single Number Rating (the value that is subtracted from the measured C-weighted sound pressure
level, L , in order to estimate the effective A-weighted sound level inside the ear)
C
W = Weight (gram)
CRITERION LEVELS (Table 4)
Typical values in accordance with EN 352-4:2001/A1:2005, appendix A, with the volume set to maximum.
H = High frequency sound pressure level (L
M = Medium frequency sound pressure level (L
L = Low frequency sound pressure level (L
MATERIALS
PARTS
Cups
Attenuation foam
Sealing rings
Headband
1
Cup supporting arm
Sordin left/RIGHT CC-1 and CO CC-1 (Headband),
1
–L
C
–L
C
MATERIALS
ABS
PE (Polyether)
PVC, PU foam
POM
PA (Polyamide)
2
= 1.2 dB),
A
–L = 2 dB),
C A
= 6 dB).
A
PARTS
Adapter, Holder
Height adjustment brushings
Spring cover
Helmet spring
Screws
Sordin left/RIGHT CC-2 and CO CC-2 (Helmet mounted)
2
8
–L
C
–L
C
MATERIALS
PA (Polyamide)
2
TPE
TPE
2
Stainless steel
2
Stainless steel
= –2 dB)
A
–L = +2 dB)
C A
= +10 dB)
A