PIP Consumables Catalogue JULY 2024 ED1 DIGITAL V3 - Flipbook - Page 105
The testing procedure can be separated into 2 diferent areas:
Exposure to sounds greater than 85 dB may cause hearing
loss. General estimates of some work-related noises are listed
in the chart below.
ALLOWABLE NOISE LEVEL
1
1
1
2
10 - 13
10 - 13
10 - 13
14 - 17
Less than 90dB
Less than 90dB
Less than 90dB
Less than 90dB
Power Lawn Mower: 90dB
Belt Sander: 93dB
Tractor: 96db
Electric Drill: 98dB
Bulldozer: 105dB
2
2
3
3
4
14 - 17
14 - 17
18 - 21
18 - 21
22 - 25
90 - 95dB
90 - 95dB
95 - 100dB
95 - 100dB
100 - 105dB
Blasting: 110dB
Nail Gun: 110dB
Chainsaw: 120dB
Propeller Aircraft: 120dB
Gun Shot: 130dB
Rivetting Hammers: 130dB
Jet Engine Aircraft: 140dB
5
5
5
5
5
5
5
26 - 36
26 - 36
26 - 36
26 - 36
26 - 36
26 - 36
26 - 36
110 - 115dB
110 - 115dB
115 - 120dB
115 - 120dB
125 - 130dB
125 - 130dB
135 - 140dB
SAFE AREA
Ringing Telephone: 80dB
Loud Radio: 80dB
Busy Traffic: 80dB
Band Saws: 85dB
RISK AREA
CLASS SLC80DB
HARMFUL RANGE
NOISE LEVEL EXAMPLES
PLEASE NOTE: This table is a general guide only and is not an absolute basis for noise levels selection
as some equipment may operate at diferent noise levels. Every worksite should be tested by OH&S.
How do I choose my hearing protection?
The choice of hearing protection depends on a number
of factors including level of noise, comfort, and the suitability
of the hearing protection for both the worker and the
environment. Most importantly, the hearing protection
should provide the desired noise reduction.
It is best where protection must be used, to provide a
choice of a number of diferent types of hearing protection.
Each hearing protection device is given a class rating from
1 to 5 to show the level of noise reduction achieved.
If the noise exposure is intermittent, earmufs are more
desirable, since it may be inconvenient to remove and
reinsert earplugs.
1) Mechanical Testing: Where the device is subjected
to physical forces, stretching, heating and concussion to simulate real wearing conditions over a period of time.
2) Audiometric Testing: This is a subjective test.
A minimum number of human test subjects are selected at
random and given a hearing test to establish if they fall into
the category of
