EAVE WORK MKI, User Manual

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Industrial safety helmet attachment (Table K):
EAVE WORK MKI ear defenders are certified for use with the helmet detailed in table K
of this document.
Explanation of the industrial safety helmet attachment table:
1. Helmet manufacturer
2. Helmet model
4. Head size: S = Small, M = Medium, L = Large
Explanation of the attenuation data table (Table L):
1. Frequency (Hz)
2. Mean attenuation (dB)
3. Standard deviation (dB)
4. Assumed Protection Value, APV (
α
= 1)(dB)
Explanation of criterion levels (Table M):
Criterion level is the sound pressure level in dB(A) of the noise environment resulting in a
sound level of 85 dB(A) effective to the ear while wearing the hearing protectors. Three
different criterion levels are defined related to the frequent content of the noise.
H = criterion level for high frequency noise.
M = criterion level for medium frequency noise.
L = criterion level for low frequency noise.
K) Helmet certified for use with EAVE WORK MKI ear defenders
Helmet Manufacturer Helmet Model Head size
JSP
JSP
Centurion
EVO 3
EVOlite
Concept Vented Reduced
Peak White Safety Helmet
L
L
L
These helmet mounted hearing protectors are suitable for persons with medium
to large headsize circumference (56-61 cm) and with medium to large height from the
top of the head to the centre of the ear canal. A smaller height may lead to improper
fit and may reduce the hearing protector’s noise attenuation properties.