Stronghold Global Product Guide 2022 - Catalog - Page 33
Key to our ranges:
VALUE
BEST
SELLER
PREMIUM
ECO
IN THIS SECTION:
34
HEADBAND
38
HELMET MOUNTED
41
What are the standards for Hearing protection?
Every hearing protection product will come with an Single Number Rating (SNR), and this
allows you to compare the protection offered by different products in order for you to
make the best decision. The higher the SNR level, the more protection the product gives.
Here are the SNRs required to remain compliant at various noise levels:
NOISE LEVEL
MINIMUM SNR
IDEAL SNR
MAXIMUM SNR
85db
5
9-14
18
90db
10
14-19
23
95db
15
19-24
28
100db
20
24-29
33
105db
25
29-34
38
110db
30
34-39
43
HEARIING PROTECTION
EAR PLUGS
EN 352 – Hearing protectors, general requirements
Standard DIN EN 352 regulates general
requirements for hearing protection as part
of protective workwear.
Selection of appropriate hearing protection
in accordance with DIN EN 352 depends
on the specific working conditions and the
type of noise occurring at the workplace.
Requirements for hearing protection are
regulated accordingly and classified into
the following types:
EN 352-1 – Earmuffs
Earmuffs in accordance with standard DIN
EN 352-1 are defined as hearing protectors
that enclose each of the wearer's external
ears with a functional capsule. As it is often
desirable to frequently put on and take off
ear protection in areas with variable noise
exposure, earmuffs are recommended for
such environments.
EN 352-2 – Earplugs
DIN EN 352-2 defines earplugs as all
hearing protectors that are worn directly in
the auditory canal or ear cavity.
EN 352-3 – Earmuffs attached
to industrial safety helmets
Standard DIN EN 352-3 describes all
earmuffs that are directly attached to
industrial safety helmets.
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