Husqvarna HP310-1, Operator'S Manual

Page: 12 / 247

• Sf = Standard deviation.
• APV (Mf-Sf) = Assumed Protection Value.
• H = High frequency attenuation value (predicted
noise level reduction for noise where L
C
-L
A
= -2 dB).
M = Medium frequency attenuation value (predicted
noise level reduction for noise where L
C
-L
A
= +2 dB).
L = Low frequency attenuation value (predicted
noise level reduction for noise where L
C
-L
A
= +10
dB).
• SNR = Single Number Rating (the value that is
subtracted from the measured C-weighted sound
pressure level, L
C
, in order to estimate the effective
A-weighted sound level inside the ear.
Responsible manufacturer: Husqvarna AB, SE-561 82
Huskvarna, Sweden, tel: +46-36-146500.
Battery
Type Article number
3.7V
DC
Li-ion Husqvarna: 594 95 62-01
Materials
Part Material Part Material
Inner ear cup ABS Headband POM+TPE
Outer ear cup, left ABS Helmet fork PA66GF30
Outer ear cup, right ABS+TPE Helmet fork spring Steel
Inserts PUR Screws Steel
Sealing rings ABS+TPE
12 579 - 005 - 05.07.2019