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Noise At Work
Date 4th Dec 2017
Shaun Knott MIOA
Noisetaking the
ROCKETout of the
SCIENCE
Get a Consultant
- V -
Do It Yourself
Details
Shaun Knott Construction Specialist
Casella Measurement
Directive 200310EC
Published Feb 15th 2003
Revised October 2005
The Basics
The Best Excuse Ever
The Basics
The Basics
L A F MX
LAF MX LC pk
LAF MN LA eq (Leq)
L epd
L= Level ACZ= Weighting FSI = Speed The measurement
LCpk
Peak noise is the highest point measured and also has legislation as to its level
70
80
90
LA
TIME
So We Need
LAF MX
LAF MN
LA eq (Leq)
LC pk
L epd
Ln90
Ln50
Measurement from the meter
(steady) at normal operator
position
Measurement from the meter
highest noise level recorded
Calculated measurement
based on actual time
exposure from the LAeq
LAeq is the amount of noise we would be exposed to if we stayed in the same
area for 8 hours
It is not our actual exposure
However
We need LAeq to calculate our exposure
Some noise meters do not give LAeq and
therefore should not be used
When measuring we use the meter to give us
a Steady Measurement or if thatrsquos not possible
we measure one complete cycle
What is LAeq
Working out Leprsquod
Difference
between 2 dB
Values (dB)
Add to
Highest (dB)Hours
0 3 12 92 103
1 25 8 90 101
2 2 7 89 100
3 2 6 89 100
4 15 5 88 99
5 15 4 87 98
6 1 3 86 97
7 1 2 84 95
8 1 1 81 92
9 05 frac12 78 89
10 05 frac14 75 86
11 05
12 05
gt12 0
= 86 + 92
We take the difference between
the two (6) using the table look at
the amount to be added (1) and
add it to the higher
So
86 + 92 = 93 dBA
Decibel Addition Table
Difference between 2 dB
Values (dB)Add to Highest (dB)
0 3
1 25
2 2
3 2
4 15
5 15
6 1
7 1
8 1
9 05
10 05
11 05
12 05
gt12 0
What is Leprsquod
Leprsquod is the actual exposure based on time exposed
LAeq
Below Lower Action
Employer must
bull Reduce risks to lowest practicable level
bull Keep records and make them available including audiometry (if done)
bull Buy quiet
Below Lower Action
bull 80dB(A) LEPd
bull 112 Pascals (LCPK= 135dB)
bull Take action as in regulations
Above Lower Action
bull Identify all employees at risk
bull Put up signs
bull Review if any changes to noise levels
bull Repeat assessment lt2 years
bull Inform employees of risk
bull Provide choice of PPE on request (first aid)
bull Provide training education
bull Noise Control
Employer must
Upper Exposure Action
bull 85dB LEPd
bull 140 Pascals (LCPK= 137dB)
bull Take action as in regulations
Above Upper Action
bull Demarcate as Noise Hazard Zones
bull PPE must be used at all times
bull Noise control to reduce exposure
bull If Lepd is over 95dBA then must use octave band
method to check if hearing protection is effective
Note For peak action level take the same action as
for second action level
EMPLOYER MUSThellip
Exposure Limit Value
bull 87dB(A) LEPd exposure limit
bull 140dB LCPK exposure limit (200 Pascals)
bull Is the maximum permissible estimated operator noise dose
whilst wearing (and not wearing) hearing protection
bull Value at the ear after taking into account any PPE
bull Therefore necessary to calculate effectiveness of PPE
bull NOT a target but minimum acceptable
bull Target these individuals first
Audiometry
bull Employees over the second action
level have the right to a hearing
check (audiometric test)
bull As a preventative measure
individuals who may be
susceptible to noise below this
level should also be tested eg
those with previous damage
Hearing Protection
The Basics
A bit about
the
Ear amp Hearing
What do we need to measure for correct hearing protection
bull Octave band method
ndash Needs frequency analyser 315Hz - 8KHz
bull HML Method
ndash Needs C and A weighted LEQ
bull SNR Method
ndash Needs an A or a C weighted LEQ
bull Octave band is the preferred method
3M Disposable Ear Plugs
PNR = M-(H-M) 4 x (LC - LA - 2)
OR
PNR = M-(H-M) 8 x (LC - LA - 2)
LAeq Octaversquos less
octave attenuation
LAeq or LCeq - SNR
Noise ndash v ndash Health and Safety
85 dB A (Leprsquod) - (87 dB A (Leprsquod))70 dB A (Leprsquod)
Health amp Safety Noise
Somewhere in here after protection
Narrowing Down Available Options
OR
Lets Just Make It
Quieter
Engineered Noise Reduction
Implications
bull Cost
bull New assessment
bull Review PPE
bull Increase noise control
bull Action plan
bull Time
A quick word ldquoThe Environmentrdquo
bull Section 61 Notices and section 60 Notices PPG24
bull Dealing with the Local Authorities
bull Compliance and conformance
bull Noise Dust No Vibration etc etc etc
bull The right equipment doing the work for you
Questions
Questions
Contact Details
Shaun Knott01234 844100
07730 818267
Noisetaking the
ROCKETout of the
SCIENCE
Get a Consultant
- V -
Do It Yourself
Details
Shaun Knott Construction Specialist
Casella Measurement
Directive 200310EC
Published Feb 15th 2003
Revised October 2005
The Basics
The Best Excuse Ever
The Basics
The Basics
L A F MX
LAF MX LC pk
LAF MN LA eq (Leq)
L epd
L= Level ACZ= Weighting FSI = Speed The measurement
LCpk
Peak noise is the highest point measured and also has legislation as to its level
70
80
90
LA
TIME
So We Need
LAF MX
LAF MN
LA eq (Leq)
LC pk
L epd
Ln90
Ln50
Measurement from the meter
(steady) at normal operator
position
Measurement from the meter
highest noise level recorded
Calculated measurement
based on actual time
exposure from the LAeq
LAeq is the amount of noise we would be exposed to if we stayed in the same
area for 8 hours
It is not our actual exposure
However
We need LAeq to calculate our exposure
Some noise meters do not give LAeq and
therefore should not be used
When measuring we use the meter to give us
a Steady Measurement or if thatrsquos not possible
we measure one complete cycle
What is LAeq
Working out Leprsquod
Difference
between 2 dB
Values (dB)
Add to
Highest (dB)Hours
0 3 12 92 103
1 25 8 90 101
2 2 7 89 100
3 2 6 89 100
4 15 5 88 99
5 15 4 87 98
6 1 3 86 97
7 1 2 84 95
8 1 1 81 92
9 05 frac12 78 89
10 05 frac14 75 86
11 05
12 05
gt12 0
= 86 + 92
We take the difference between
the two (6) using the table look at
the amount to be added (1) and
add it to the higher
So
86 + 92 = 93 dBA
Decibel Addition Table
Difference between 2 dB
Values (dB)Add to Highest (dB)
0 3
1 25
2 2
3 2
4 15
5 15
6 1
7 1
8 1
9 05
10 05
11 05
12 05
gt12 0
What is Leprsquod
Leprsquod is the actual exposure based on time exposed
LAeq
Below Lower Action
Employer must
bull Reduce risks to lowest practicable level
bull Keep records and make them available including audiometry (if done)
bull Buy quiet
Below Lower Action
bull 80dB(A) LEPd
bull 112 Pascals (LCPK= 135dB)
bull Take action as in regulations
Above Lower Action
bull Identify all employees at risk
bull Put up signs
bull Review if any changes to noise levels
bull Repeat assessment lt2 years
bull Inform employees of risk
bull Provide choice of PPE on request (first aid)
bull Provide training education
bull Noise Control
Employer must
Upper Exposure Action
bull 85dB LEPd
bull 140 Pascals (LCPK= 137dB)
bull Take action as in regulations
Above Upper Action
bull Demarcate as Noise Hazard Zones
bull PPE must be used at all times
bull Noise control to reduce exposure
bull If Lepd is over 95dBA then must use octave band
method to check if hearing protection is effective
Note For peak action level take the same action as
for second action level
EMPLOYER MUSThellip
Exposure Limit Value
bull 87dB(A) LEPd exposure limit
bull 140dB LCPK exposure limit (200 Pascals)
bull Is the maximum permissible estimated operator noise dose
whilst wearing (and not wearing) hearing protection
bull Value at the ear after taking into account any PPE
bull Therefore necessary to calculate effectiveness of PPE
bull NOT a target but minimum acceptable
bull Target these individuals first
Audiometry
bull Employees over the second action
level have the right to a hearing
check (audiometric test)
bull As a preventative measure
individuals who may be
susceptible to noise below this
level should also be tested eg
those with previous damage
Hearing Protection
The Basics
A bit about
the
Ear amp Hearing
What do we need to measure for correct hearing protection
bull Octave band method
ndash Needs frequency analyser 315Hz - 8KHz
bull HML Method
ndash Needs C and A weighted LEQ
bull SNR Method
ndash Needs an A or a C weighted LEQ
bull Octave band is the preferred method
3M Disposable Ear Plugs
PNR = M-(H-M) 4 x (LC - LA - 2)
OR
PNR = M-(H-M) 8 x (LC - LA - 2)
LAeq Octaversquos less
octave attenuation
LAeq or LCeq - SNR
Noise ndash v ndash Health and Safety
85 dB A (Leprsquod) - (87 dB A (Leprsquod))70 dB A (Leprsquod)
Health amp Safety Noise
Somewhere in here after protection
Narrowing Down Available Options
OR
Lets Just Make It
Quieter
Engineered Noise Reduction
Implications
bull Cost
bull New assessment
bull Review PPE
bull Increase noise control
bull Action plan
bull Time
A quick word ldquoThe Environmentrdquo
bull Section 61 Notices and section 60 Notices PPG24
bull Dealing with the Local Authorities
bull Compliance and conformance
bull Noise Dust No Vibration etc etc etc
bull The right equipment doing the work for you
Questions
Questions
Contact Details
Shaun Knott01234 844100
07730 818267
Get a Consultant
- V -
Do It Yourself
Details
Shaun Knott Construction Specialist
Casella Measurement
Directive 200310EC
Published Feb 15th 2003
Revised October 2005
The Basics
The Best Excuse Ever
The Basics
The Basics
L A F MX
LAF MX LC pk
LAF MN LA eq (Leq)
L epd
L= Level ACZ= Weighting FSI = Speed The measurement
LCpk
Peak noise is the highest point measured and also has legislation as to its level
70
80
90
LA
TIME
So We Need
LAF MX
LAF MN
LA eq (Leq)
LC pk
L epd
Ln90
Ln50
Measurement from the meter
(steady) at normal operator
position
Measurement from the meter
highest noise level recorded
Calculated measurement
based on actual time
exposure from the LAeq
LAeq is the amount of noise we would be exposed to if we stayed in the same
area for 8 hours
It is not our actual exposure
However
We need LAeq to calculate our exposure
Some noise meters do not give LAeq and
therefore should not be used
When measuring we use the meter to give us
a Steady Measurement or if thatrsquos not possible
we measure one complete cycle
What is LAeq
Working out Leprsquod
Difference
between 2 dB
Values (dB)
Add to
Highest (dB)Hours
0 3 12 92 103
1 25 8 90 101
2 2 7 89 100
3 2 6 89 100
4 15 5 88 99
5 15 4 87 98
6 1 3 86 97
7 1 2 84 95
8 1 1 81 92
9 05 frac12 78 89
10 05 frac14 75 86
11 05
12 05
gt12 0
= 86 + 92
We take the difference between
the two (6) using the table look at
the amount to be added (1) and
add it to the higher
So
86 + 92 = 93 dBA
Decibel Addition Table
Difference between 2 dB
Values (dB)Add to Highest (dB)
0 3
1 25
2 2
3 2
4 15
5 15
6 1
7 1
8 1
9 05
10 05
11 05
12 05
gt12 0
What is Leprsquod
Leprsquod is the actual exposure based on time exposed
LAeq
Below Lower Action
Employer must
bull Reduce risks to lowest practicable level
bull Keep records and make them available including audiometry (if done)
bull Buy quiet
Below Lower Action
bull 80dB(A) LEPd
bull 112 Pascals (LCPK= 135dB)
bull Take action as in regulations
Above Lower Action
bull Identify all employees at risk
bull Put up signs
bull Review if any changes to noise levels
bull Repeat assessment lt2 years
bull Inform employees of risk
bull Provide choice of PPE on request (first aid)
bull Provide training education
bull Noise Control
Employer must
Upper Exposure Action
bull 85dB LEPd
bull 140 Pascals (LCPK= 137dB)
bull Take action as in regulations
Above Upper Action
bull Demarcate as Noise Hazard Zones
bull PPE must be used at all times
bull Noise control to reduce exposure
bull If Lepd is over 95dBA then must use octave band
method to check if hearing protection is effective
Note For peak action level take the same action as
for second action level
EMPLOYER MUSThellip
Exposure Limit Value
bull 87dB(A) LEPd exposure limit
bull 140dB LCPK exposure limit (200 Pascals)
bull Is the maximum permissible estimated operator noise dose
whilst wearing (and not wearing) hearing protection
bull Value at the ear after taking into account any PPE
bull Therefore necessary to calculate effectiveness of PPE
bull NOT a target but minimum acceptable
bull Target these individuals first
Audiometry
bull Employees over the second action
level have the right to a hearing
check (audiometric test)
bull As a preventative measure
individuals who may be
susceptible to noise below this
level should also be tested eg
those with previous damage
Hearing Protection
The Basics
A bit about
the
Ear amp Hearing
What do we need to measure for correct hearing protection
bull Octave band method
ndash Needs frequency analyser 315Hz - 8KHz
bull HML Method
ndash Needs C and A weighted LEQ
bull SNR Method
ndash Needs an A or a C weighted LEQ
bull Octave band is the preferred method
3M Disposable Ear Plugs
PNR = M-(H-M) 4 x (LC - LA - 2)
OR
PNR = M-(H-M) 8 x (LC - LA - 2)
LAeq Octaversquos less
octave attenuation
LAeq or LCeq - SNR
Noise ndash v ndash Health and Safety
85 dB A (Leprsquod) - (87 dB A (Leprsquod))70 dB A (Leprsquod)
Health amp Safety Noise
Somewhere in here after protection
Narrowing Down Available Options
OR
Lets Just Make It
Quieter
Engineered Noise Reduction
Implications
bull Cost
bull New assessment
bull Review PPE
bull Increase noise control
bull Action plan
bull Time
A quick word ldquoThe Environmentrdquo
bull Section 61 Notices and section 60 Notices PPG24
bull Dealing with the Local Authorities
bull Compliance and conformance
bull Noise Dust No Vibration etc etc etc
bull The right equipment doing the work for you
Questions
Questions
Contact Details
Shaun Knott01234 844100
07730 818267
Details
Shaun Knott Construction Specialist
Casella Measurement
Directive 200310EC
Published Feb 15th 2003
Revised October 2005
The Basics
The Best Excuse Ever
The Basics
The Basics
L A F MX
LAF MX LC pk
LAF MN LA eq (Leq)
L epd
L= Level ACZ= Weighting FSI = Speed The measurement
LCpk
Peak noise is the highest point measured and also has legislation as to its level
70
80
90
LA
TIME
So We Need
LAF MX
LAF MN
LA eq (Leq)
LC pk
L epd
Ln90
Ln50
Measurement from the meter
(steady) at normal operator
position
Measurement from the meter
highest noise level recorded
Calculated measurement
based on actual time
exposure from the LAeq
LAeq is the amount of noise we would be exposed to if we stayed in the same
area for 8 hours
It is not our actual exposure
However
We need LAeq to calculate our exposure
Some noise meters do not give LAeq and
therefore should not be used
When measuring we use the meter to give us
a Steady Measurement or if thatrsquos not possible
we measure one complete cycle
What is LAeq
Working out Leprsquod
Difference
between 2 dB
Values (dB)
Add to
Highest (dB)Hours
0 3 12 92 103
1 25 8 90 101
2 2 7 89 100
3 2 6 89 100
4 15 5 88 99
5 15 4 87 98
6 1 3 86 97
7 1 2 84 95
8 1 1 81 92
9 05 frac12 78 89
10 05 frac14 75 86
11 05
12 05
gt12 0
= 86 + 92
We take the difference between
the two (6) using the table look at
the amount to be added (1) and
add it to the higher
So
86 + 92 = 93 dBA
Decibel Addition Table
Difference between 2 dB
Values (dB)Add to Highest (dB)
0 3
1 25
2 2
3 2
4 15
5 15
6 1
7 1
8 1
9 05
10 05
11 05
12 05
gt12 0
What is Leprsquod
Leprsquod is the actual exposure based on time exposed
LAeq
Below Lower Action
Employer must
bull Reduce risks to lowest practicable level
bull Keep records and make them available including audiometry (if done)
bull Buy quiet
Below Lower Action
bull 80dB(A) LEPd
bull 112 Pascals (LCPK= 135dB)
bull Take action as in regulations
Above Lower Action
bull Identify all employees at risk
bull Put up signs
bull Review if any changes to noise levels
bull Repeat assessment lt2 years
bull Inform employees of risk
bull Provide choice of PPE on request (first aid)
bull Provide training education
bull Noise Control
Employer must
Upper Exposure Action
bull 85dB LEPd
bull 140 Pascals (LCPK= 137dB)
bull Take action as in regulations
Above Upper Action
bull Demarcate as Noise Hazard Zones
bull PPE must be used at all times
bull Noise control to reduce exposure
bull If Lepd is over 95dBA then must use octave band
method to check if hearing protection is effective
Note For peak action level take the same action as
for second action level
EMPLOYER MUSThellip
Exposure Limit Value
bull 87dB(A) LEPd exposure limit
bull 140dB LCPK exposure limit (200 Pascals)
bull Is the maximum permissible estimated operator noise dose
whilst wearing (and not wearing) hearing protection
bull Value at the ear after taking into account any PPE
bull Therefore necessary to calculate effectiveness of PPE
bull NOT a target but minimum acceptable
bull Target these individuals first
Audiometry
bull Employees over the second action
level have the right to a hearing
check (audiometric test)
bull As a preventative measure
individuals who may be
susceptible to noise below this
level should also be tested eg
those with previous damage
Hearing Protection
The Basics
A bit about
the
Ear amp Hearing
What do we need to measure for correct hearing protection
bull Octave band method
ndash Needs frequency analyser 315Hz - 8KHz
bull HML Method
ndash Needs C and A weighted LEQ
bull SNR Method
ndash Needs an A or a C weighted LEQ
bull Octave band is the preferred method
3M Disposable Ear Plugs
PNR = M-(H-M) 4 x (LC - LA - 2)
OR
PNR = M-(H-M) 8 x (LC - LA - 2)
LAeq Octaversquos less
octave attenuation
LAeq or LCeq - SNR
Noise ndash v ndash Health and Safety
85 dB A (Leprsquod) - (87 dB A (Leprsquod))70 dB A (Leprsquod)
Health amp Safety Noise
Somewhere in here after protection
Narrowing Down Available Options
OR
Lets Just Make It
Quieter
Engineered Noise Reduction
Implications
bull Cost
bull New assessment
bull Review PPE
bull Increase noise control
bull Action plan
bull Time
A quick word ldquoThe Environmentrdquo
bull Section 61 Notices and section 60 Notices PPG24
bull Dealing with the Local Authorities
bull Compliance and conformance
bull Noise Dust No Vibration etc etc etc
bull The right equipment doing the work for you
Questions
Questions
Contact Details
Shaun Knott01234 844100
07730 818267
The Basics
The Best Excuse Ever
The Basics
The Basics
L A F MX
LAF MX LC pk
LAF MN LA eq (Leq)
L epd
L= Level ACZ= Weighting FSI = Speed The measurement
LCpk
Peak noise is the highest point measured and also has legislation as to its level
70
80
90
LA
TIME
So We Need
LAF MX
LAF MN
LA eq (Leq)
LC pk
L epd
Ln90
Ln50
Measurement from the meter
(steady) at normal operator
position
Measurement from the meter
highest noise level recorded
Calculated measurement
based on actual time
exposure from the LAeq
LAeq is the amount of noise we would be exposed to if we stayed in the same
area for 8 hours
It is not our actual exposure
However
We need LAeq to calculate our exposure
Some noise meters do not give LAeq and
therefore should not be used
When measuring we use the meter to give us
a Steady Measurement or if thatrsquos not possible
we measure one complete cycle
What is LAeq
Working out Leprsquod
Difference
between 2 dB
Values (dB)
Add to
Highest (dB)Hours
0 3 12 92 103
1 25 8 90 101
2 2 7 89 100
3 2 6 89 100
4 15 5 88 99
5 15 4 87 98
6 1 3 86 97
7 1 2 84 95
8 1 1 81 92
9 05 frac12 78 89
10 05 frac14 75 86
11 05
12 05
gt12 0
= 86 + 92
We take the difference between
the two (6) using the table look at
the amount to be added (1) and
add it to the higher
So
86 + 92 = 93 dBA
Decibel Addition Table
Difference between 2 dB
Values (dB)Add to Highest (dB)
0 3
1 25
2 2
3 2
4 15
5 15
6 1
7 1
8 1
9 05
10 05
11 05
12 05
gt12 0
What is Leprsquod
Leprsquod is the actual exposure based on time exposed
LAeq
Below Lower Action
Employer must
bull Reduce risks to lowest practicable level
bull Keep records and make them available including audiometry (if done)
bull Buy quiet
Below Lower Action
bull 80dB(A) LEPd
bull 112 Pascals (LCPK= 135dB)
bull Take action as in regulations
Above Lower Action
bull Identify all employees at risk
bull Put up signs
bull Review if any changes to noise levels
bull Repeat assessment lt2 years
bull Inform employees of risk
bull Provide choice of PPE on request (first aid)
bull Provide training education
bull Noise Control
Employer must
Upper Exposure Action
bull 85dB LEPd
bull 140 Pascals (LCPK= 137dB)
bull Take action as in regulations
Above Upper Action
bull Demarcate as Noise Hazard Zones
bull PPE must be used at all times
bull Noise control to reduce exposure
bull If Lepd is over 95dBA then must use octave band
method to check if hearing protection is effective
Note For peak action level take the same action as
for second action level
EMPLOYER MUSThellip
Exposure Limit Value
bull 87dB(A) LEPd exposure limit
bull 140dB LCPK exposure limit (200 Pascals)
bull Is the maximum permissible estimated operator noise dose
whilst wearing (and not wearing) hearing protection
bull Value at the ear after taking into account any PPE
bull Therefore necessary to calculate effectiveness of PPE
bull NOT a target but minimum acceptable
bull Target these individuals first
Audiometry
bull Employees over the second action
level have the right to a hearing
check (audiometric test)
bull As a preventative measure
individuals who may be
susceptible to noise below this
level should also be tested eg
those with previous damage
Hearing Protection
The Basics
A bit about
the
Ear amp Hearing
What do we need to measure for correct hearing protection
bull Octave band method
ndash Needs frequency analyser 315Hz - 8KHz
bull HML Method
ndash Needs C and A weighted LEQ
bull SNR Method
ndash Needs an A or a C weighted LEQ
bull Octave band is the preferred method
3M Disposable Ear Plugs
PNR = M-(H-M) 4 x (LC - LA - 2)
OR
PNR = M-(H-M) 8 x (LC - LA - 2)
LAeq Octaversquos less
octave attenuation
LAeq or LCeq - SNR
Noise ndash v ndash Health and Safety
85 dB A (Leprsquod) - (87 dB A (Leprsquod))70 dB A (Leprsquod)
Health amp Safety Noise
Somewhere in here after protection
Narrowing Down Available Options
OR
Lets Just Make It
Quieter
Engineered Noise Reduction
Implications
bull Cost
bull New assessment
bull Review PPE
bull Increase noise control
bull Action plan
bull Time
A quick word ldquoThe Environmentrdquo
bull Section 61 Notices and section 60 Notices PPG24
bull Dealing with the Local Authorities
bull Compliance and conformance
bull Noise Dust No Vibration etc etc etc
bull The right equipment doing the work for you
Questions
Questions
Contact Details
Shaun Knott01234 844100
07730 818267
The Best Excuse Ever
The Basics
The Basics
L A F MX
LAF MX LC pk
LAF MN LA eq (Leq)
L epd
L= Level ACZ= Weighting FSI = Speed The measurement
LCpk
Peak noise is the highest point measured and also has legislation as to its level
70
80
90
LA
TIME
So We Need
LAF MX
LAF MN
LA eq (Leq)
LC pk
L epd
Ln90
Ln50
Measurement from the meter
(steady) at normal operator
position
Measurement from the meter
highest noise level recorded
Calculated measurement
based on actual time
exposure from the LAeq
LAeq is the amount of noise we would be exposed to if we stayed in the same
area for 8 hours
It is not our actual exposure
However
We need LAeq to calculate our exposure
Some noise meters do not give LAeq and
therefore should not be used
When measuring we use the meter to give us
a Steady Measurement or if thatrsquos not possible
we measure one complete cycle
What is LAeq
Working out Leprsquod
Difference
between 2 dB
Values (dB)
Add to
Highest (dB)Hours
0 3 12 92 103
1 25 8 90 101
2 2 7 89 100
3 2 6 89 100
4 15 5 88 99
5 15 4 87 98
6 1 3 86 97
7 1 2 84 95
8 1 1 81 92
9 05 frac12 78 89
10 05 frac14 75 86
11 05
12 05
gt12 0
= 86 + 92
We take the difference between
the two (6) using the table look at
the amount to be added (1) and
add it to the higher
So
86 + 92 = 93 dBA
Decibel Addition Table
Difference between 2 dB
Values (dB)Add to Highest (dB)
0 3
1 25
2 2
3 2
4 15
5 15
6 1
7 1
8 1
9 05
10 05
11 05
12 05
gt12 0
What is Leprsquod
Leprsquod is the actual exposure based on time exposed
LAeq
Below Lower Action
Employer must
bull Reduce risks to lowest practicable level
bull Keep records and make them available including audiometry (if done)
bull Buy quiet
Below Lower Action
bull 80dB(A) LEPd
bull 112 Pascals (LCPK= 135dB)
bull Take action as in regulations
Above Lower Action
bull Identify all employees at risk
bull Put up signs
bull Review if any changes to noise levels
bull Repeat assessment lt2 years
bull Inform employees of risk
bull Provide choice of PPE on request (first aid)
bull Provide training education
bull Noise Control
Employer must
Upper Exposure Action
bull 85dB LEPd
bull 140 Pascals (LCPK= 137dB)
bull Take action as in regulations
Above Upper Action
bull Demarcate as Noise Hazard Zones
bull PPE must be used at all times
bull Noise control to reduce exposure
bull If Lepd is over 95dBA then must use octave band
method to check if hearing protection is effective
Note For peak action level take the same action as
for second action level
EMPLOYER MUSThellip
Exposure Limit Value
bull 87dB(A) LEPd exposure limit
bull 140dB LCPK exposure limit (200 Pascals)
bull Is the maximum permissible estimated operator noise dose
whilst wearing (and not wearing) hearing protection
bull Value at the ear after taking into account any PPE
bull Therefore necessary to calculate effectiveness of PPE
bull NOT a target but minimum acceptable
bull Target these individuals first
Audiometry
bull Employees over the second action
level have the right to a hearing
check (audiometric test)
bull As a preventative measure
individuals who may be
susceptible to noise below this
level should also be tested eg
those with previous damage
Hearing Protection
The Basics
A bit about
the
Ear amp Hearing
What do we need to measure for correct hearing protection
bull Octave band method
ndash Needs frequency analyser 315Hz - 8KHz
bull HML Method
ndash Needs C and A weighted LEQ
bull SNR Method
ndash Needs an A or a C weighted LEQ
bull Octave band is the preferred method
3M Disposable Ear Plugs
PNR = M-(H-M) 4 x (LC - LA - 2)
OR
PNR = M-(H-M) 8 x (LC - LA - 2)
LAeq Octaversquos less
octave attenuation
LAeq or LCeq - SNR
Noise ndash v ndash Health and Safety
85 dB A (Leprsquod) - (87 dB A (Leprsquod))70 dB A (Leprsquod)
Health amp Safety Noise
Somewhere in here after protection
Narrowing Down Available Options
OR
Lets Just Make It
Quieter
Engineered Noise Reduction
Implications
bull Cost
bull New assessment
bull Review PPE
bull Increase noise control
bull Action plan
bull Time
A quick word ldquoThe Environmentrdquo
bull Section 61 Notices and section 60 Notices PPG24
bull Dealing with the Local Authorities
bull Compliance and conformance
bull Noise Dust No Vibration etc etc etc
bull The right equipment doing the work for you
Questions
Questions
Contact Details
Shaun Knott01234 844100
07730 818267
The Basics
The Basics
L A F MX
LAF MX LC pk
LAF MN LA eq (Leq)
L epd
L= Level ACZ= Weighting FSI = Speed The measurement
LCpk
Peak noise is the highest point measured and also has legislation as to its level
70
80
90
LA
TIME
So We Need
LAF MX
LAF MN
LA eq (Leq)
LC pk
L epd
Ln90
Ln50
Measurement from the meter
(steady) at normal operator
position
Measurement from the meter
highest noise level recorded
Calculated measurement
based on actual time
exposure from the LAeq
LAeq is the amount of noise we would be exposed to if we stayed in the same
area for 8 hours
It is not our actual exposure
However
We need LAeq to calculate our exposure
Some noise meters do not give LAeq and
therefore should not be used
When measuring we use the meter to give us
a Steady Measurement or if thatrsquos not possible
we measure one complete cycle
What is LAeq
Working out Leprsquod
Difference
between 2 dB
Values (dB)
Add to
Highest (dB)Hours
0 3 12 92 103
1 25 8 90 101
2 2 7 89 100
3 2 6 89 100
4 15 5 88 99
5 15 4 87 98
6 1 3 86 97
7 1 2 84 95
8 1 1 81 92
9 05 frac12 78 89
10 05 frac14 75 86
11 05
12 05
gt12 0
= 86 + 92
We take the difference between
the two (6) using the table look at
the amount to be added (1) and
add it to the higher
So
86 + 92 = 93 dBA
Decibel Addition Table
Difference between 2 dB
Values (dB)Add to Highest (dB)
0 3
1 25
2 2
3 2
4 15
5 15
6 1
7 1
8 1
9 05
10 05
11 05
12 05
gt12 0
What is Leprsquod
Leprsquod is the actual exposure based on time exposed
LAeq
Below Lower Action
Employer must
bull Reduce risks to lowest practicable level
bull Keep records and make them available including audiometry (if done)
bull Buy quiet
Below Lower Action
bull 80dB(A) LEPd
bull 112 Pascals (LCPK= 135dB)
bull Take action as in regulations
Above Lower Action
bull Identify all employees at risk
bull Put up signs
bull Review if any changes to noise levels
bull Repeat assessment lt2 years
bull Inform employees of risk
bull Provide choice of PPE on request (first aid)
bull Provide training education
bull Noise Control
Employer must
Upper Exposure Action
bull 85dB LEPd
bull 140 Pascals (LCPK= 137dB)
bull Take action as in regulations
Above Upper Action
bull Demarcate as Noise Hazard Zones
bull PPE must be used at all times
bull Noise control to reduce exposure
bull If Lepd is over 95dBA then must use octave band
method to check if hearing protection is effective
Note For peak action level take the same action as
for second action level
EMPLOYER MUSThellip
Exposure Limit Value
bull 87dB(A) LEPd exposure limit
bull 140dB LCPK exposure limit (200 Pascals)
bull Is the maximum permissible estimated operator noise dose
whilst wearing (and not wearing) hearing protection
bull Value at the ear after taking into account any PPE
bull Therefore necessary to calculate effectiveness of PPE
bull NOT a target but minimum acceptable
bull Target these individuals first
Audiometry
bull Employees over the second action
level have the right to a hearing
check (audiometric test)
bull As a preventative measure
individuals who may be
susceptible to noise below this
level should also be tested eg
those with previous damage
Hearing Protection
The Basics
A bit about
the
Ear amp Hearing
What do we need to measure for correct hearing protection
bull Octave band method
ndash Needs frequency analyser 315Hz - 8KHz
bull HML Method
ndash Needs C and A weighted LEQ
bull SNR Method
ndash Needs an A or a C weighted LEQ
bull Octave band is the preferred method
3M Disposable Ear Plugs
PNR = M-(H-M) 4 x (LC - LA - 2)
OR
PNR = M-(H-M) 8 x (LC - LA - 2)
LAeq Octaversquos less
octave attenuation
LAeq or LCeq - SNR
Noise ndash v ndash Health and Safety
85 dB A (Leprsquod) - (87 dB A (Leprsquod))70 dB A (Leprsquod)
Health amp Safety Noise
Somewhere in here after protection
Narrowing Down Available Options
OR
Lets Just Make It
Quieter
Engineered Noise Reduction
Implications
bull Cost
bull New assessment
bull Review PPE
bull Increase noise control
bull Action plan
bull Time
A quick word ldquoThe Environmentrdquo
bull Section 61 Notices and section 60 Notices PPG24
bull Dealing with the Local Authorities
bull Compliance and conformance
bull Noise Dust No Vibration etc etc etc
bull The right equipment doing the work for you
Questions
Questions
Contact Details
Shaun Knott01234 844100
07730 818267
The Basics
L A F MX
LAF MX LC pk
LAF MN LA eq (Leq)
L epd
L= Level ACZ= Weighting FSI = Speed The measurement
LCpk
Peak noise is the highest point measured and also has legislation as to its level
70
80
90
LA
TIME
So We Need
LAF MX
LAF MN
LA eq (Leq)
LC pk
L epd
Ln90
Ln50
Measurement from the meter
(steady) at normal operator
position
Measurement from the meter
highest noise level recorded
Calculated measurement
based on actual time
exposure from the LAeq
LAeq is the amount of noise we would be exposed to if we stayed in the same
area for 8 hours
It is not our actual exposure
However
We need LAeq to calculate our exposure
Some noise meters do not give LAeq and
therefore should not be used
When measuring we use the meter to give us
a Steady Measurement or if thatrsquos not possible
we measure one complete cycle
What is LAeq
Working out Leprsquod
Difference
between 2 dB
Values (dB)
Add to
Highest (dB)Hours
0 3 12 92 103
1 25 8 90 101
2 2 7 89 100
3 2 6 89 100
4 15 5 88 99
5 15 4 87 98
6 1 3 86 97
7 1 2 84 95
8 1 1 81 92
9 05 frac12 78 89
10 05 frac14 75 86
11 05
12 05
gt12 0
= 86 + 92
We take the difference between
the two (6) using the table look at
the amount to be added (1) and
add it to the higher
So
86 + 92 = 93 dBA
Decibel Addition Table
Difference between 2 dB
Values (dB)Add to Highest (dB)
0 3
1 25
2 2
3 2
4 15
5 15
6 1
7 1
8 1
9 05
10 05
11 05
12 05
gt12 0
What is Leprsquod
Leprsquod is the actual exposure based on time exposed
LAeq
Below Lower Action
Employer must
bull Reduce risks to lowest practicable level
bull Keep records and make them available including audiometry (if done)
bull Buy quiet
Below Lower Action
bull 80dB(A) LEPd
bull 112 Pascals (LCPK= 135dB)
bull Take action as in regulations
Above Lower Action
bull Identify all employees at risk
bull Put up signs
bull Review if any changes to noise levels
bull Repeat assessment lt2 years
bull Inform employees of risk
bull Provide choice of PPE on request (first aid)
bull Provide training education
bull Noise Control
Employer must
Upper Exposure Action
bull 85dB LEPd
bull 140 Pascals (LCPK= 137dB)
bull Take action as in regulations
Above Upper Action
bull Demarcate as Noise Hazard Zones
bull PPE must be used at all times
bull Noise control to reduce exposure
bull If Lepd is over 95dBA then must use octave band
method to check if hearing protection is effective
Note For peak action level take the same action as
for second action level
EMPLOYER MUSThellip
Exposure Limit Value
bull 87dB(A) LEPd exposure limit
bull 140dB LCPK exposure limit (200 Pascals)
bull Is the maximum permissible estimated operator noise dose
whilst wearing (and not wearing) hearing protection
bull Value at the ear after taking into account any PPE
bull Therefore necessary to calculate effectiveness of PPE
bull NOT a target but minimum acceptable
bull Target these individuals first
Audiometry
bull Employees over the second action
level have the right to a hearing
check (audiometric test)
bull As a preventative measure
individuals who may be
susceptible to noise below this
level should also be tested eg
those with previous damage
Hearing Protection
The Basics
A bit about
the
Ear amp Hearing
What do we need to measure for correct hearing protection
bull Octave band method
ndash Needs frequency analyser 315Hz - 8KHz
bull HML Method
ndash Needs C and A weighted LEQ
bull SNR Method
ndash Needs an A or a C weighted LEQ
bull Octave band is the preferred method
3M Disposable Ear Plugs
PNR = M-(H-M) 4 x (LC - LA - 2)
OR
PNR = M-(H-M) 8 x (LC - LA - 2)
LAeq Octaversquos less
octave attenuation
LAeq or LCeq - SNR
Noise ndash v ndash Health and Safety
85 dB A (Leprsquod) - (87 dB A (Leprsquod))70 dB A (Leprsquod)
Health amp Safety Noise
Somewhere in here after protection
Narrowing Down Available Options
OR
Lets Just Make It
Quieter
Engineered Noise Reduction
Implications
bull Cost
bull New assessment
bull Review PPE
bull Increase noise control
bull Action plan
bull Time
A quick word ldquoThe Environmentrdquo
bull Section 61 Notices and section 60 Notices PPG24
bull Dealing with the Local Authorities
bull Compliance and conformance
bull Noise Dust No Vibration etc etc etc
bull The right equipment doing the work for you
Questions
Questions
Contact Details
Shaun Knott01234 844100
07730 818267
LCpk
Peak noise is the highest point measured and also has legislation as to its level
70
80
90
LA
TIME
So We Need
LAF MX
LAF MN
LA eq (Leq)
LC pk
L epd
Ln90
Ln50
Measurement from the meter
(steady) at normal operator
position
Measurement from the meter
highest noise level recorded
Calculated measurement
based on actual time
exposure from the LAeq
LAeq is the amount of noise we would be exposed to if we stayed in the same
area for 8 hours
It is not our actual exposure
However
We need LAeq to calculate our exposure
Some noise meters do not give LAeq and
therefore should not be used
When measuring we use the meter to give us
a Steady Measurement or if thatrsquos not possible
we measure one complete cycle
What is LAeq
Working out Leprsquod
Difference
between 2 dB
Values (dB)
Add to
Highest (dB)Hours
0 3 12 92 103
1 25 8 90 101
2 2 7 89 100
3 2 6 89 100
4 15 5 88 99
5 15 4 87 98
6 1 3 86 97
7 1 2 84 95
8 1 1 81 92
9 05 frac12 78 89
10 05 frac14 75 86
11 05
12 05
gt12 0
= 86 + 92
We take the difference between
the two (6) using the table look at
the amount to be added (1) and
add it to the higher
So
86 + 92 = 93 dBA
Decibel Addition Table
Difference between 2 dB
Values (dB)Add to Highest (dB)
0 3
1 25
2 2
3 2
4 15
5 15
6 1
7 1
8 1
9 05
10 05
11 05
12 05
gt12 0
What is Leprsquod
Leprsquod is the actual exposure based on time exposed
LAeq
Below Lower Action
Employer must
bull Reduce risks to lowest practicable level
bull Keep records and make them available including audiometry (if done)
bull Buy quiet
Below Lower Action
bull 80dB(A) LEPd
bull 112 Pascals (LCPK= 135dB)
bull Take action as in regulations
Above Lower Action
bull Identify all employees at risk
bull Put up signs
bull Review if any changes to noise levels
bull Repeat assessment lt2 years
bull Inform employees of risk
bull Provide choice of PPE on request (first aid)
bull Provide training education
bull Noise Control
Employer must
Upper Exposure Action
bull 85dB LEPd
bull 140 Pascals (LCPK= 137dB)
bull Take action as in regulations
Above Upper Action
bull Demarcate as Noise Hazard Zones
bull PPE must be used at all times
bull Noise control to reduce exposure
bull If Lepd is over 95dBA then must use octave band
method to check if hearing protection is effective
Note For peak action level take the same action as
for second action level
EMPLOYER MUSThellip
Exposure Limit Value
bull 87dB(A) LEPd exposure limit
bull 140dB LCPK exposure limit (200 Pascals)
bull Is the maximum permissible estimated operator noise dose
whilst wearing (and not wearing) hearing protection
bull Value at the ear after taking into account any PPE
bull Therefore necessary to calculate effectiveness of PPE
bull NOT a target but minimum acceptable
bull Target these individuals first
Audiometry
bull Employees over the second action
level have the right to a hearing
check (audiometric test)
bull As a preventative measure
individuals who may be
susceptible to noise below this
level should also be tested eg
those with previous damage
Hearing Protection
The Basics
A bit about
the
Ear amp Hearing
What do we need to measure for correct hearing protection
bull Octave band method
ndash Needs frequency analyser 315Hz - 8KHz
bull HML Method
ndash Needs C and A weighted LEQ
bull SNR Method
ndash Needs an A or a C weighted LEQ
bull Octave band is the preferred method
3M Disposable Ear Plugs
PNR = M-(H-M) 4 x (LC - LA - 2)
OR
PNR = M-(H-M) 8 x (LC - LA - 2)
LAeq Octaversquos less
octave attenuation
LAeq or LCeq - SNR
Noise ndash v ndash Health and Safety
85 dB A (Leprsquod) - (87 dB A (Leprsquod))70 dB A (Leprsquod)
Health amp Safety Noise
Somewhere in here after protection
Narrowing Down Available Options
OR
Lets Just Make It
Quieter
Engineered Noise Reduction
Implications
bull Cost
bull New assessment
bull Review PPE
bull Increase noise control
bull Action plan
bull Time
A quick word ldquoThe Environmentrdquo
bull Section 61 Notices and section 60 Notices PPG24
bull Dealing with the Local Authorities
bull Compliance and conformance
bull Noise Dust No Vibration etc etc etc
bull The right equipment doing the work for you
Questions
Questions
Contact Details
Shaun Knott01234 844100
07730 818267
So We Need
LAF MX
LAF MN
LA eq (Leq)
LC pk
L epd
Ln90
Ln50
Measurement from the meter
(steady) at normal operator
position
Measurement from the meter
highest noise level recorded
Calculated measurement
based on actual time
exposure from the LAeq
LAeq is the amount of noise we would be exposed to if we stayed in the same
area for 8 hours
It is not our actual exposure
However
We need LAeq to calculate our exposure
Some noise meters do not give LAeq and
therefore should not be used
When measuring we use the meter to give us
a Steady Measurement or if thatrsquos not possible
we measure one complete cycle
What is LAeq
Working out Leprsquod
Difference
between 2 dB
Values (dB)
Add to
Highest (dB)Hours
0 3 12 92 103
1 25 8 90 101
2 2 7 89 100
3 2 6 89 100
4 15 5 88 99
5 15 4 87 98
6 1 3 86 97
7 1 2 84 95
8 1 1 81 92
9 05 frac12 78 89
10 05 frac14 75 86
11 05
12 05
gt12 0
= 86 + 92
We take the difference between
the two (6) using the table look at
the amount to be added (1) and
add it to the higher
So
86 + 92 = 93 dBA
Decibel Addition Table
Difference between 2 dB
Values (dB)Add to Highest (dB)
0 3
1 25
2 2
3 2
4 15
5 15
6 1
7 1
8 1
9 05
10 05
11 05
12 05
gt12 0
What is Leprsquod
Leprsquod is the actual exposure based on time exposed
LAeq
Below Lower Action
Employer must
bull Reduce risks to lowest practicable level
bull Keep records and make them available including audiometry (if done)
bull Buy quiet
Below Lower Action
bull 80dB(A) LEPd
bull 112 Pascals (LCPK= 135dB)
bull Take action as in regulations
Above Lower Action
bull Identify all employees at risk
bull Put up signs
bull Review if any changes to noise levels
bull Repeat assessment lt2 years
bull Inform employees of risk
bull Provide choice of PPE on request (first aid)
bull Provide training education
bull Noise Control
Employer must
Upper Exposure Action
bull 85dB LEPd
bull 140 Pascals (LCPK= 137dB)
bull Take action as in regulations
Above Upper Action
bull Demarcate as Noise Hazard Zones
bull PPE must be used at all times
bull Noise control to reduce exposure
bull If Lepd is over 95dBA then must use octave band
method to check if hearing protection is effective
Note For peak action level take the same action as
for second action level
EMPLOYER MUSThellip
Exposure Limit Value
bull 87dB(A) LEPd exposure limit
bull 140dB LCPK exposure limit (200 Pascals)
bull Is the maximum permissible estimated operator noise dose
whilst wearing (and not wearing) hearing protection
bull Value at the ear after taking into account any PPE
bull Therefore necessary to calculate effectiveness of PPE
bull NOT a target but minimum acceptable
bull Target these individuals first
Audiometry
bull Employees over the second action
level have the right to a hearing
check (audiometric test)
bull As a preventative measure
individuals who may be
susceptible to noise below this
level should also be tested eg
those with previous damage
Hearing Protection
The Basics
A bit about
the
Ear amp Hearing
What do we need to measure for correct hearing protection
bull Octave band method
ndash Needs frequency analyser 315Hz - 8KHz
bull HML Method
ndash Needs C and A weighted LEQ
bull SNR Method
ndash Needs an A or a C weighted LEQ
bull Octave band is the preferred method
3M Disposable Ear Plugs
PNR = M-(H-M) 4 x (LC - LA - 2)
OR
PNR = M-(H-M) 8 x (LC - LA - 2)
LAeq Octaversquos less
octave attenuation
LAeq or LCeq - SNR
Noise ndash v ndash Health and Safety
85 dB A (Leprsquod) - (87 dB A (Leprsquod))70 dB A (Leprsquod)
Health amp Safety Noise
Somewhere in here after protection
Narrowing Down Available Options
OR
Lets Just Make It
Quieter
Engineered Noise Reduction
Implications
bull Cost
bull New assessment
bull Review PPE
bull Increase noise control
bull Action plan
bull Time
A quick word ldquoThe Environmentrdquo
bull Section 61 Notices and section 60 Notices PPG24
bull Dealing with the Local Authorities
bull Compliance and conformance
bull Noise Dust No Vibration etc etc etc
bull The right equipment doing the work for you
Questions
Questions
Contact Details
Shaun Knott01234 844100
07730 818267
LAeq is the amount of noise we would be exposed to if we stayed in the same
area for 8 hours
It is not our actual exposure
However
We need LAeq to calculate our exposure
Some noise meters do not give LAeq and
therefore should not be used
When measuring we use the meter to give us
a Steady Measurement or if thatrsquos not possible
we measure one complete cycle
What is LAeq
Working out Leprsquod
Difference
between 2 dB
Values (dB)
Add to
Highest (dB)Hours
0 3 12 92 103
1 25 8 90 101
2 2 7 89 100
3 2 6 89 100
4 15 5 88 99
5 15 4 87 98
6 1 3 86 97
7 1 2 84 95
8 1 1 81 92
9 05 frac12 78 89
10 05 frac14 75 86
11 05
12 05
gt12 0
= 86 + 92
We take the difference between
the two (6) using the table look at
the amount to be added (1) and
add it to the higher
So
86 + 92 = 93 dBA
Decibel Addition Table
Difference between 2 dB
Values (dB)Add to Highest (dB)
0 3
1 25
2 2
3 2
4 15
5 15
6 1
7 1
8 1
9 05
10 05
11 05
12 05
gt12 0
What is Leprsquod
Leprsquod is the actual exposure based on time exposed
LAeq
Below Lower Action
Employer must
bull Reduce risks to lowest practicable level
bull Keep records and make them available including audiometry (if done)
bull Buy quiet
Below Lower Action
bull 80dB(A) LEPd
bull 112 Pascals (LCPK= 135dB)
bull Take action as in regulations
Above Lower Action
bull Identify all employees at risk
bull Put up signs
bull Review if any changes to noise levels
bull Repeat assessment lt2 years
bull Inform employees of risk
bull Provide choice of PPE on request (first aid)
bull Provide training education
bull Noise Control
Employer must
Upper Exposure Action
bull 85dB LEPd
bull 140 Pascals (LCPK= 137dB)
bull Take action as in regulations
Above Upper Action
bull Demarcate as Noise Hazard Zones
bull PPE must be used at all times
bull Noise control to reduce exposure
bull If Lepd is over 95dBA then must use octave band
method to check if hearing protection is effective
Note For peak action level take the same action as
for second action level
EMPLOYER MUSThellip
Exposure Limit Value
bull 87dB(A) LEPd exposure limit
bull 140dB LCPK exposure limit (200 Pascals)
bull Is the maximum permissible estimated operator noise dose
whilst wearing (and not wearing) hearing protection
bull Value at the ear after taking into account any PPE
bull Therefore necessary to calculate effectiveness of PPE
bull NOT a target but minimum acceptable
bull Target these individuals first
Audiometry
bull Employees over the second action
level have the right to a hearing
check (audiometric test)
bull As a preventative measure
individuals who may be
susceptible to noise below this
level should also be tested eg
those with previous damage
Hearing Protection
The Basics
A bit about
the
Ear amp Hearing
What do we need to measure for correct hearing protection
bull Octave band method
ndash Needs frequency analyser 315Hz - 8KHz
bull HML Method
ndash Needs C and A weighted LEQ
bull SNR Method
ndash Needs an A or a C weighted LEQ
bull Octave band is the preferred method
3M Disposable Ear Plugs
PNR = M-(H-M) 4 x (LC - LA - 2)
OR
PNR = M-(H-M) 8 x (LC - LA - 2)
LAeq Octaversquos less
octave attenuation
LAeq or LCeq - SNR
Noise ndash v ndash Health and Safety
85 dB A (Leprsquod) - (87 dB A (Leprsquod))70 dB A (Leprsquod)
Health amp Safety Noise
Somewhere in here after protection
Narrowing Down Available Options
OR
Lets Just Make It
Quieter
Engineered Noise Reduction
Implications
bull Cost
bull New assessment
bull Review PPE
bull Increase noise control
bull Action plan
bull Time
A quick word ldquoThe Environmentrdquo
bull Section 61 Notices and section 60 Notices PPG24
bull Dealing with the Local Authorities
bull Compliance and conformance
bull Noise Dust No Vibration etc etc etc
bull The right equipment doing the work for you
Questions
Questions
Contact Details
Shaun Knott01234 844100
07730 818267
Working out Leprsquod
Difference
between 2 dB
Values (dB)
Add to
Highest (dB)Hours
0 3 12 92 103
1 25 8 90 101
2 2 7 89 100
3 2 6 89 100
4 15 5 88 99
5 15 4 87 98
6 1 3 86 97
7 1 2 84 95
8 1 1 81 92
9 05 frac12 78 89
10 05 frac14 75 86
11 05
12 05
gt12 0
= 86 + 92
We take the difference between
the two (6) using the table look at
the amount to be added (1) and
add it to the higher
So
86 + 92 = 93 dBA
Decibel Addition Table
Difference between 2 dB
Values (dB)Add to Highest (dB)
0 3
1 25
2 2
3 2
4 15
5 15
6 1
7 1
8 1
9 05
10 05
11 05
12 05
gt12 0
What is Leprsquod
Leprsquod is the actual exposure based on time exposed
LAeq
Below Lower Action
Employer must
bull Reduce risks to lowest practicable level
bull Keep records and make them available including audiometry (if done)
bull Buy quiet
Below Lower Action
bull 80dB(A) LEPd
bull 112 Pascals (LCPK= 135dB)
bull Take action as in regulations
Above Lower Action
bull Identify all employees at risk
bull Put up signs
bull Review if any changes to noise levels
bull Repeat assessment lt2 years
bull Inform employees of risk
bull Provide choice of PPE on request (first aid)
bull Provide training education
bull Noise Control
Employer must
Upper Exposure Action
bull 85dB LEPd
bull 140 Pascals (LCPK= 137dB)
bull Take action as in regulations
Above Upper Action
bull Demarcate as Noise Hazard Zones
bull PPE must be used at all times
bull Noise control to reduce exposure
bull If Lepd is over 95dBA then must use octave band
method to check if hearing protection is effective
Note For peak action level take the same action as
for second action level
EMPLOYER MUSThellip
Exposure Limit Value
bull 87dB(A) LEPd exposure limit
bull 140dB LCPK exposure limit (200 Pascals)
bull Is the maximum permissible estimated operator noise dose
whilst wearing (and not wearing) hearing protection
bull Value at the ear after taking into account any PPE
bull Therefore necessary to calculate effectiveness of PPE
bull NOT a target but minimum acceptable
bull Target these individuals first
Audiometry
bull Employees over the second action
level have the right to a hearing
check (audiometric test)
bull As a preventative measure
individuals who may be
susceptible to noise below this
level should also be tested eg
those with previous damage
Hearing Protection
The Basics
A bit about
the
Ear amp Hearing
What do we need to measure for correct hearing protection
bull Octave band method
ndash Needs frequency analyser 315Hz - 8KHz
bull HML Method
ndash Needs C and A weighted LEQ
bull SNR Method
ndash Needs an A or a C weighted LEQ
bull Octave band is the preferred method
3M Disposable Ear Plugs
PNR = M-(H-M) 4 x (LC - LA - 2)
OR
PNR = M-(H-M) 8 x (LC - LA - 2)
LAeq Octaversquos less
octave attenuation
LAeq or LCeq - SNR
Noise ndash v ndash Health and Safety
85 dB A (Leprsquod) - (87 dB A (Leprsquod))70 dB A (Leprsquod)
Health amp Safety Noise
Somewhere in here after protection
Narrowing Down Available Options
OR
Lets Just Make It
Quieter
Engineered Noise Reduction
Implications
bull Cost
bull New assessment
bull Review PPE
bull Increase noise control
bull Action plan
bull Time
A quick word ldquoThe Environmentrdquo
bull Section 61 Notices and section 60 Notices PPG24
bull Dealing with the Local Authorities
bull Compliance and conformance
bull Noise Dust No Vibration etc etc etc
bull The right equipment doing the work for you
Questions
Questions
Contact Details
Shaun Knott01234 844100
07730 818267
Decibel Addition Table
Difference between 2 dB
Values (dB)Add to Highest (dB)
0 3
1 25
2 2
3 2
4 15
5 15
6 1
7 1
8 1
9 05
10 05
11 05
12 05
gt12 0
What is Leprsquod
Leprsquod is the actual exposure based on time exposed
LAeq
Below Lower Action
Employer must
bull Reduce risks to lowest practicable level
bull Keep records and make them available including audiometry (if done)
bull Buy quiet
Below Lower Action
bull 80dB(A) LEPd
bull 112 Pascals (LCPK= 135dB)
bull Take action as in regulations
Above Lower Action
bull Identify all employees at risk
bull Put up signs
bull Review if any changes to noise levels
bull Repeat assessment lt2 years
bull Inform employees of risk
bull Provide choice of PPE on request (first aid)
bull Provide training education
bull Noise Control
Employer must
Upper Exposure Action
bull 85dB LEPd
bull 140 Pascals (LCPK= 137dB)
bull Take action as in regulations
Above Upper Action
bull Demarcate as Noise Hazard Zones
bull PPE must be used at all times
bull Noise control to reduce exposure
bull If Lepd is over 95dBA then must use octave band
method to check if hearing protection is effective
Note For peak action level take the same action as
for second action level
EMPLOYER MUSThellip
Exposure Limit Value
bull 87dB(A) LEPd exposure limit
bull 140dB LCPK exposure limit (200 Pascals)
bull Is the maximum permissible estimated operator noise dose
whilst wearing (and not wearing) hearing protection
bull Value at the ear after taking into account any PPE
bull Therefore necessary to calculate effectiveness of PPE
bull NOT a target but minimum acceptable
bull Target these individuals first
Audiometry
bull Employees over the second action
level have the right to a hearing
check (audiometric test)
bull As a preventative measure
individuals who may be
susceptible to noise below this
level should also be tested eg
those with previous damage
Hearing Protection
The Basics
A bit about
the
Ear amp Hearing
What do we need to measure for correct hearing protection
bull Octave band method
ndash Needs frequency analyser 315Hz - 8KHz
bull HML Method
ndash Needs C and A weighted LEQ
bull SNR Method
ndash Needs an A or a C weighted LEQ
bull Octave band is the preferred method
3M Disposable Ear Plugs
PNR = M-(H-M) 4 x (LC - LA - 2)
OR
PNR = M-(H-M) 8 x (LC - LA - 2)
LAeq Octaversquos less
octave attenuation
LAeq or LCeq - SNR
Noise ndash v ndash Health and Safety
85 dB A (Leprsquod) - (87 dB A (Leprsquod))70 dB A (Leprsquod)
Health amp Safety Noise
Somewhere in here after protection
Narrowing Down Available Options
OR
Lets Just Make It
Quieter
Engineered Noise Reduction
Implications
bull Cost
bull New assessment
bull Review PPE
bull Increase noise control
bull Action plan
bull Time
A quick word ldquoThe Environmentrdquo
bull Section 61 Notices and section 60 Notices PPG24
bull Dealing with the Local Authorities
bull Compliance and conformance
bull Noise Dust No Vibration etc etc etc
bull The right equipment doing the work for you
Questions
Questions
Contact Details
Shaun Knott01234 844100
07730 818267
What is Leprsquod
Leprsquod is the actual exposure based on time exposed
LAeq
Below Lower Action
Employer must
bull Reduce risks to lowest practicable level
bull Keep records and make them available including audiometry (if done)
bull Buy quiet
Below Lower Action
bull 80dB(A) LEPd
bull 112 Pascals (LCPK= 135dB)
bull Take action as in regulations
Above Lower Action
bull Identify all employees at risk
bull Put up signs
bull Review if any changes to noise levels
bull Repeat assessment lt2 years
bull Inform employees of risk
bull Provide choice of PPE on request (first aid)
bull Provide training education
bull Noise Control
Employer must
Upper Exposure Action
bull 85dB LEPd
bull 140 Pascals (LCPK= 137dB)
bull Take action as in regulations
Above Upper Action
bull Demarcate as Noise Hazard Zones
bull PPE must be used at all times
bull Noise control to reduce exposure
bull If Lepd is over 95dBA then must use octave band
method to check if hearing protection is effective
Note For peak action level take the same action as
for second action level
EMPLOYER MUSThellip
Exposure Limit Value
bull 87dB(A) LEPd exposure limit
bull 140dB LCPK exposure limit (200 Pascals)
bull Is the maximum permissible estimated operator noise dose
whilst wearing (and not wearing) hearing protection
bull Value at the ear after taking into account any PPE
bull Therefore necessary to calculate effectiveness of PPE
bull NOT a target but minimum acceptable
bull Target these individuals first
Audiometry
bull Employees over the second action
level have the right to a hearing
check (audiometric test)
bull As a preventative measure
individuals who may be
susceptible to noise below this
level should also be tested eg
those with previous damage
Hearing Protection
The Basics
A bit about
the
Ear amp Hearing
What do we need to measure for correct hearing protection
bull Octave band method
ndash Needs frequency analyser 315Hz - 8KHz
bull HML Method
ndash Needs C and A weighted LEQ
bull SNR Method
ndash Needs an A or a C weighted LEQ
bull Octave band is the preferred method
3M Disposable Ear Plugs
PNR = M-(H-M) 4 x (LC - LA - 2)
OR
PNR = M-(H-M) 8 x (LC - LA - 2)
LAeq Octaversquos less
octave attenuation
LAeq or LCeq - SNR
Noise ndash v ndash Health and Safety
85 dB A (Leprsquod) - (87 dB A (Leprsquod))70 dB A (Leprsquod)
Health amp Safety Noise
Somewhere in here after protection
Narrowing Down Available Options
OR
Lets Just Make It
Quieter
Engineered Noise Reduction
Implications
bull Cost
bull New assessment
bull Review PPE
bull Increase noise control
bull Action plan
bull Time
A quick word ldquoThe Environmentrdquo
bull Section 61 Notices and section 60 Notices PPG24
bull Dealing with the Local Authorities
bull Compliance and conformance
bull Noise Dust No Vibration etc etc etc
bull The right equipment doing the work for you
Questions
Questions
Contact Details
Shaun Knott01234 844100
07730 818267
Below Lower Action
Employer must
bull Reduce risks to lowest practicable level
bull Keep records and make them available including audiometry (if done)
bull Buy quiet
Below Lower Action
bull 80dB(A) LEPd
bull 112 Pascals (LCPK= 135dB)
bull Take action as in regulations
Above Lower Action
bull Identify all employees at risk
bull Put up signs
bull Review if any changes to noise levels
bull Repeat assessment lt2 years
bull Inform employees of risk
bull Provide choice of PPE on request (first aid)
bull Provide training education
bull Noise Control
Employer must
Upper Exposure Action
bull 85dB LEPd
bull 140 Pascals (LCPK= 137dB)
bull Take action as in regulations
Above Upper Action
bull Demarcate as Noise Hazard Zones
bull PPE must be used at all times
bull Noise control to reduce exposure
bull If Lepd is over 95dBA then must use octave band
method to check if hearing protection is effective
Note For peak action level take the same action as
for second action level
EMPLOYER MUSThellip
Exposure Limit Value
bull 87dB(A) LEPd exposure limit
bull 140dB LCPK exposure limit (200 Pascals)
bull Is the maximum permissible estimated operator noise dose
whilst wearing (and not wearing) hearing protection
bull Value at the ear after taking into account any PPE
bull Therefore necessary to calculate effectiveness of PPE
bull NOT a target but minimum acceptable
bull Target these individuals first
Audiometry
bull Employees over the second action
level have the right to a hearing
check (audiometric test)
bull As a preventative measure
individuals who may be
susceptible to noise below this
level should also be tested eg
those with previous damage
Hearing Protection
The Basics
A bit about
the
Ear amp Hearing
What do we need to measure for correct hearing protection
bull Octave band method
ndash Needs frequency analyser 315Hz - 8KHz
bull HML Method
ndash Needs C and A weighted LEQ
bull SNR Method
ndash Needs an A or a C weighted LEQ
bull Octave band is the preferred method
3M Disposable Ear Plugs
PNR = M-(H-M) 4 x (LC - LA - 2)
OR
PNR = M-(H-M) 8 x (LC - LA - 2)
LAeq Octaversquos less
octave attenuation
LAeq or LCeq - SNR
Noise ndash v ndash Health and Safety
85 dB A (Leprsquod) - (87 dB A (Leprsquod))70 dB A (Leprsquod)
Health amp Safety Noise
Somewhere in here after protection
Narrowing Down Available Options
OR
Lets Just Make It
Quieter
Engineered Noise Reduction
Implications
bull Cost
bull New assessment
bull Review PPE
bull Increase noise control
bull Action plan
bull Time
A quick word ldquoThe Environmentrdquo
bull Section 61 Notices and section 60 Notices PPG24
bull Dealing with the Local Authorities
bull Compliance and conformance
bull Noise Dust No Vibration etc etc etc
bull The right equipment doing the work for you
Questions
Questions
Contact Details
Shaun Knott01234 844100
07730 818267
Below Lower Action
bull 80dB(A) LEPd
bull 112 Pascals (LCPK= 135dB)
bull Take action as in regulations
Above Lower Action
bull Identify all employees at risk
bull Put up signs
bull Review if any changes to noise levels
bull Repeat assessment lt2 years
bull Inform employees of risk
bull Provide choice of PPE on request (first aid)
bull Provide training education
bull Noise Control
Employer must
Upper Exposure Action
bull 85dB LEPd
bull 140 Pascals (LCPK= 137dB)
bull Take action as in regulations
Above Upper Action
bull Demarcate as Noise Hazard Zones
bull PPE must be used at all times
bull Noise control to reduce exposure
bull If Lepd is over 95dBA then must use octave band
method to check if hearing protection is effective
Note For peak action level take the same action as
for second action level
EMPLOYER MUSThellip
Exposure Limit Value
bull 87dB(A) LEPd exposure limit
bull 140dB LCPK exposure limit (200 Pascals)
bull Is the maximum permissible estimated operator noise dose
whilst wearing (and not wearing) hearing protection
bull Value at the ear after taking into account any PPE
bull Therefore necessary to calculate effectiveness of PPE
bull NOT a target but minimum acceptable
bull Target these individuals first
Audiometry
bull Employees over the second action
level have the right to a hearing
check (audiometric test)
bull As a preventative measure
individuals who may be
susceptible to noise below this
level should also be tested eg
those with previous damage
Hearing Protection
The Basics
A bit about
the
Ear amp Hearing
What do we need to measure for correct hearing protection
bull Octave band method
ndash Needs frequency analyser 315Hz - 8KHz
bull HML Method
ndash Needs C and A weighted LEQ
bull SNR Method
ndash Needs an A or a C weighted LEQ
bull Octave band is the preferred method
3M Disposable Ear Plugs
PNR = M-(H-M) 4 x (LC - LA - 2)
OR
PNR = M-(H-M) 8 x (LC - LA - 2)
LAeq Octaversquos less
octave attenuation
LAeq or LCeq - SNR
Noise ndash v ndash Health and Safety
85 dB A (Leprsquod) - (87 dB A (Leprsquod))70 dB A (Leprsquod)
Health amp Safety Noise
Somewhere in here after protection
Narrowing Down Available Options
OR
Lets Just Make It
Quieter
Engineered Noise Reduction
Implications
bull Cost
bull New assessment
bull Review PPE
bull Increase noise control
bull Action plan
bull Time
A quick word ldquoThe Environmentrdquo
bull Section 61 Notices and section 60 Notices PPG24
bull Dealing with the Local Authorities
bull Compliance and conformance
bull Noise Dust No Vibration etc etc etc
bull The right equipment doing the work for you
Questions
Questions
Contact Details
Shaun Knott01234 844100
07730 818267
Above Lower Action
bull Identify all employees at risk
bull Put up signs
bull Review if any changes to noise levels
bull Repeat assessment lt2 years
bull Inform employees of risk
bull Provide choice of PPE on request (first aid)
bull Provide training education
bull Noise Control
Employer must
Upper Exposure Action
bull 85dB LEPd
bull 140 Pascals (LCPK= 137dB)
bull Take action as in regulations
Above Upper Action
bull Demarcate as Noise Hazard Zones
bull PPE must be used at all times
bull Noise control to reduce exposure
bull If Lepd is over 95dBA then must use octave band
method to check if hearing protection is effective
Note For peak action level take the same action as
for second action level
EMPLOYER MUSThellip
Exposure Limit Value
bull 87dB(A) LEPd exposure limit
bull 140dB LCPK exposure limit (200 Pascals)
bull Is the maximum permissible estimated operator noise dose
whilst wearing (and not wearing) hearing protection
bull Value at the ear after taking into account any PPE
bull Therefore necessary to calculate effectiveness of PPE
bull NOT a target but minimum acceptable
bull Target these individuals first
Audiometry
bull Employees over the second action
level have the right to a hearing
check (audiometric test)
bull As a preventative measure
individuals who may be
susceptible to noise below this
level should also be tested eg
those with previous damage
Hearing Protection
The Basics
A bit about
the
Ear amp Hearing
What do we need to measure for correct hearing protection
bull Octave band method
ndash Needs frequency analyser 315Hz - 8KHz
bull HML Method
ndash Needs C and A weighted LEQ
bull SNR Method
ndash Needs an A or a C weighted LEQ
bull Octave band is the preferred method
3M Disposable Ear Plugs
PNR = M-(H-M) 4 x (LC - LA - 2)
OR
PNR = M-(H-M) 8 x (LC - LA - 2)
LAeq Octaversquos less
octave attenuation
LAeq or LCeq - SNR
Noise ndash v ndash Health and Safety
85 dB A (Leprsquod) - (87 dB A (Leprsquod))70 dB A (Leprsquod)
Health amp Safety Noise
Somewhere in here after protection
Narrowing Down Available Options
OR
Lets Just Make It
Quieter
Engineered Noise Reduction
Implications
bull Cost
bull New assessment
bull Review PPE
bull Increase noise control
bull Action plan
bull Time
A quick word ldquoThe Environmentrdquo
bull Section 61 Notices and section 60 Notices PPG24
bull Dealing with the Local Authorities
bull Compliance and conformance
bull Noise Dust No Vibration etc etc etc
bull The right equipment doing the work for you
Questions
Questions
Contact Details
Shaun Knott01234 844100
07730 818267
Upper Exposure Action
bull 85dB LEPd
bull 140 Pascals (LCPK= 137dB)
bull Take action as in regulations
Above Upper Action
bull Demarcate as Noise Hazard Zones
bull PPE must be used at all times
bull Noise control to reduce exposure
bull If Lepd is over 95dBA then must use octave band
method to check if hearing protection is effective
Note For peak action level take the same action as
for second action level
EMPLOYER MUSThellip
Exposure Limit Value
bull 87dB(A) LEPd exposure limit
bull 140dB LCPK exposure limit (200 Pascals)
bull Is the maximum permissible estimated operator noise dose
whilst wearing (and not wearing) hearing protection
bull Value at the ear after taking into account any PPE
bull Therefore necessary to calculate effectiveness of PPE
bull NOT a target but minimum acceptable
bull Target these individuals first
Audiometry
bull Employees over the second action
level have the right to a hearing
check (audiometric test)
bull As a preventative measure
individuals who may be
susceptible to noise below this
level should also be tested eg
those with previous damage
Hearing Protection
The Basics
A bit about
the
Ear amp Hearing
What do we need to measure for correct hearing protection
bull Octave band method
ndash Needs frequency analyser 315Hz - 8KHz
bull HML Method
ndash Needs C and A weighted LEQ
bull SNR Method
ndash Needs an A or a C weighted LEQ
bull Octave band is the preferred method
3M Disposable Ear Plugs
PNR = M-(H-M) 4 x (LC - LA - 2)
OR
PNR = M-(H-M) 8 x (LC - LA - 2)
LAeq Octaversquos less
octave attenuation
LAeq or LCeq - SNR
Noise ndash v ndash Health and Safety
85 dB A (Leprsquod) - (87 dB A (Leprsquod))70 dB A (Leprsquod)
Health amp Safety Noise
Somewhere in here after protection
Narrowing Down Available Options
OR
Lets Just Make It
Quieter
Engineered Noise Reduction
Implications
bull Cost
bull New assessment
bull Review PPE
bull Increase noise control
bull Action plan
bull Time
A quick word ldquoThe Environmentrdquo
bull Section 61 Notices and section 60 Notices PPG24
bull Dealing with the Local Authorities
bull Compliance and conformance
bull Noise Dust No Vibration etc etc etc
bull The right equipment doing the work for you
Questions
Questions
Contact Details
Shaun Knott01234 844100
07730 818267
Above Upper Action
bull Demarcate as Noise Hazard Zones
bull PPE must be used at all times
bull Noise control to reduce exposure
bull If Lepd is over 95dBA then must use octave band
method to check if hearing protection is effective
Note For peak action level take the same action as
for second action level
EMPLOYER MUSThellip
Exposure Limit Value
bull 87dB(A) LEPd exposure limit
bull 140dB LCPK exposure limit (200 Pascals)
bull Is the maximum permissible estimated operator noise dose
whilst wearing (and not wearing) hearing protection
bull Value at the ear after taking into account any PPE
bull Therefore necessary to calculate effectiveness of PPE
bull NOT a target but minimum acceptable
bull Target these individuals first
Audiometry
bull Employees over the second action
level have the right to a hearing
check (audiometric test)
bull As a preventative measure
individuals who may be
susceptible to noise below this
level should also be tested eg
those with previous damage
Hearing Protection
The Basics
A bit about
the
Ear amp Hearing
What do we need to measure for correct hearing protection
bull Octave band method
ndash Needs frequency analyser 315Hz - 8KHz
bull HML Method
ndash Needs C and A weighted LEQ
bull SNR Method
ndash Needs an A or a C weighted LEQ
bull Octave band is the preferred method
3M Disposable Ear Plugs
PNR = M-(H-M) 4 x (LC - LA - 2)
OR
PNR = M-(H-M) 8 x (LC - LA - 2)
LAeq Octaversquos less
octave attenuation
LAeq or LCeq - SNR
Noise ndash v ndash Health and Safety
85 dB A (Leprsquod) - (87 dB A (Leprsquod))70 dB A (Leprsquod)
Health amp Safety Noise
Somewhere in here after protection
Narrowing Down Available Options
OR
Lets Just Make It
Quieter
Engineered Noise Reduction
Implications
bull Cost
bull New assessment
bull Review PPE
bull Increase noise control
bull Action plan
bull Time
A quick word ldquoThe Environmentrdquo
bull Section 61 Notices and section 60 Notices PPG24
bull Dealing with the Local Authorities
bull Compliance and conformance
bull Noise Dust No Vibration etc etc etc
bull The right equipment doing the work for you
Questions
Questions
Contact Details
Shaun Knott01234 844100
07730 818267
Exposure Limit Value
bull 87dB(A) LEPd exposure limit
bull 140dB LCPK exposure limit (200 Pascals)
bull Is the maximum permissible estimated operator noise dose
whilst wearing (and not wearing) hearing protection
bull Value at the ear after taking into account any PPE
bull Therefore necessary to calculate effectiveness of PPE
bull NOT a target but minimum acceptable
bull Target these individuals first
Audiometry
bull Employees over the second action
level have the right to a hearing
check (audiometric test)
bull As a preventative measure
individuals who may be
susceptible to noise below this
level should also be tested eg
those with previous damage
Hearing Protection
The Basics
A bit about
the
Ear amp Hearing
What do we need to measure for correct hearing protection
bull Octave band method
ndash Needs frequency analyser 315Hz - 8KHz
bull HML Method
ndash Needs C and A weighted LEQ
bull SNR Method
ndash Needs an A or a C weighted LEQ
bull Octave band is the preferred method
3M Disposable Ear Plugs
PNR = M-(H-M) 4 x (LC - LA - 2)
OR
PNR = M-(H-M) 8 x (LC - LA - 2)
LAeq Octaversquos less
octave attenuation
LAeq or LCeq - SNR
Noise ndash v ndash Health and Safety
85 dB A (Leprsquod) - (87 dB A (Leprsquod))70 dB A (Leprsquod)
Health amp Safety Noise
Somewhere in here after protection
Narrowing Down Available Options
OR
Lets Just Make It
Quieter
Engineered Noise Reduction
Implications
bull Cost
bull New assessment
bull Review PPE
bull Increase noise control
bull Action plan
bull Time
A quick word ldquoThe Environmentrdquo
bull Section 61 Notices and section 60 Notices PPG24
bull Dealing with the Local Authorities
bull Compliance and conformance
bull Noise Dust No Vibration etc etc etc
bull The right equipment doing the work for you
Questions
Questions
Contact Details
Shaun Knott01234 844100
07730 818267
Audiometry
bull Employees over the second action
level have the right to a hearing
check (audiometric test)
bull As a preventative measure
individuals who may be
susceptible to noise below this
level should also be tested eg
those with previous damage
Hearing Protection
The Basics
A bit about
the
Ear amp Hearing
What do we need to measure for correct hearing protection
bull Octave band method
ndash Needs frequency analyser 315Hz - 8KHz
bull HML Method
ndash Needs C and A weighted LEQ
bull SNR Method
ndash Needs an A or a C weighted LEQ
bull Octave band is the preferred method
3M Disposable Ear Plugs
PNR = M-(H-M) 4 x (LC - LA - 2)
OR
PNR = M-(H-M) 8 x (LC - LA - 2)
LAeq Octaversquos less
octave attenuation
LAeq or LCeq - SNR
Noise ndash v ndash Health and Safety
85 dB A (Leprsquod) - (87 dB A (Leprsquod))70 dB A (Leprsquod)
Health amp Safety Noise
Somewhere in here after protection
Narrowing Down Available Options
OR
Lets Just Make It
Quieter
Engineered Noise Reduction
Implications
bull Cost
bull New assessment
bull Review PPE
bull Increase noise control
bull Action plan
bull Time
A quick word ldquoThe Environmentrdquo
bull Section 61 Notices and section 60 Notices PPG24
bull Dealing with the Local Authorities
bull Compliance and conformance
bull Noise Dust No Vibration etc etc etc
bull The right equipment doing the work for you
Questions
Questions
Contact Details
Shaun Knott01234 844100
07730 818267
Hearing Protection
The Basics
A bit about
the
Ear amp Hearing
What do we need to measure for correct hearing protection
bull Octave band method
ndash Needs frequency analyser 315Hz - 8KHz
bull HML Method
ndash Needs C and A weighted LEQ
bull SNR Method
ndash Needs an A or a C weighted LEQ
bull Octave band is the preferred method
3M Disposable Ear Plugs
PNR = M-(H-M) 4 x (LC - LA - 2)
OR
PNR = M-(H-M) 8 x (LC - LA - 2)
LAeq Octaversquos less
octave attenuation
LAeq or LCeq - SNR
Noise ndash v ndash Health and Safety
85 dB A (Leprsquod) - (87 dB A (Leprsquod))70 dB A (Leprsquod)
Health amp Safety Noise
Somewhere in here after protection
Narrowing Down Available Options
OR
Lets Just Make It
Quieter
Engineered Noise Reduction
Implications
bull Cost
bull New assessment
bull Review PPE
bull Increase noise control
bull Action plan
bull Time
A quick word ldquoThe Environmentrdquo
bull Section 61 Notices and section 60 Notices PPG24
bull Dealing with the Local Authorities
bull Compliance and conformance
bull Noise Dust No Vibration etc etc etc
bull The right equipment doing the work for you
Questions
Questions
Contact Details
Shaun Knott01234 844100
07730 818267
The Basics
A bit about
the
Ear amp Hearing
What do we need to measure for correct hearing protection
bull Octave band method
ndash Needs frequency analyser 315Hz - 8KHz
bull HML Method
ndash Needs C and A weighted LEQ
bull SNR Method
ndash Needs an A or a C weighted LEQ
bull Octave band is the preferred method
3M Disposable Ear Plugs
PNR = M-(H-M) 4 x (LC - LA - 2)
OR
PNR = M-(H-M) 8 x (LC - LA - 2)
LAeq Octaversquos less
octave attenuation
LAeq or LCeq - SNR
Noise ndash v ndash Health and Safety
85 dB A (Leprsquod) - (87 dB A (Leprsquod))70 dB A (Leprsquod)
Health amp Safety Noise
Somewhere in here after protection
Narrowing Down Available Options
OR
Lets Just Make It
Quieter
Engineered Noise Reduction
Implications
bull Cost
bull New assessment
bull Review PPE
bull Increase noise control
bull Action plan
bull Time
A quick word ldquoThe Environmentrdquo
bull Section 61 Notices and section 60 Notices PPG24
bull Dealing with the Local Authorities
bull Compliance and conformance
bull Noise Dust No Vibration etc etc etc
bull The right equipment doing the work for you
Questions
Questions
Contact Details
Shaun Knott01234 844100
07730 818267
What do we need to measure for correct hearing protection
bull Octave band method
ndash Needs frequency analyser 315Hz - 8KHz
bull HML Method
ndash Needs C and A weighted LEQ
bull SNR Method
ndash Needs an A or a C weighted LEQ
bull Octave band is the preferred method
3M Disposable Ear Plugs
PNR = M-(H-M) 4 x (LC - LA - 2)
OR
PNR = M-(H-M) 8 x (LC - LA - 2)
LAeq Octaversquos less
octave attenuation
LAeq or LCeq - SNR
Noise ndash v ndash Health and Safety
85 dB A (Leprsquod) - (87 dB A (Leprsquod))70 dB A (Leprsquod)
Health amp Safety Noise
Somewhere in here after protection
Narrowing Down Available Options
OR
Lets Just Make It
Quieter
Engineered Noise Reduction
Implications
bull Cost
bull New assessment
bull Review PPE
bull Increase noise control
bull Action plan
bull Time
A quick word ldquoThe Environmentrdquo
bull Section 61 Notices and section 60 Notices PPG24
bull Dealing with the Local Authorities
bull Compliance and conformance
bull Noise Dust No Vibration etc etc etc
bull The right equipment doing the work for you
Questions
Questions
Contact Details
Shaun Knott01234 844100
07730 818267
3M Disposable Ear Plugs
PNR = M-(H-M) 4 x (LC - LA - 2)
OR
PNR = M-(H-M) 8 x (LC - LA - 2)
LAeq Octaversquos less
octave attenuation
LAeq or LCeq - SNR
Noise ndash v ndash Health and Safety
85 dB A (Leprsquod) - (87 dB A (Leprsquod))70 dB A (Leprsquod)
Health amp Safety Noise
Somewhere in here after protection
Narrowing Down Available Options
OR
Lets Just Make It
Quieter
Engineered Noise Reduction
Implications
bull Cost
bull New assessment
bull Review PPE
bull Increase noise control
bull Action plan
bull Time
A quick word ldquoThe Environmentrdquo
bull Section 61 Notices and section 60 Notices PPG24
bull Dealing with the Local Authorities
bull Compliance and conformance
bull Noise Dust No Vibration etc etc etc
bull The right equipment doing the work for you
Questions
Questions
Contact Details
Shaun Knott01234 844100
07730 818267
Noise ndash v ndash Health and Safety
85 dB A (Leprsquod) - (87 dB A (Leprsquod))70 dB A (Leprsquod)
Health amp Safety Noise
Somewhere in here after protection
Narrowing Down Available Options
OR
Lets Just Make It
Quieter
Engineered Noise Reduction
Implications
bull Cost
bull New assessment
bull Review PPE
bull Increase noise control
bull Action plan
bull Time
A quick word ldquoThe Environmentrdquo
bull Section 61 Notices and section 60 Notices PPG24
bull Dealing with the Local Authorities
bull Compliance and conformance
bull Noise Dust No Vibration etc etc etc
bull The right equipment doing the work for you
Questions
Questions
Contact Details
Shaun Knott01234 844100
07730 818267
Narrowing Down Available Options
OR
Lets Just Make It
Quieter
Engineered Noise Reduction
Implications
bull Cost
bull New assessment
bull Review PPE
bull Increase noise control
bull Action plan
bull Time
A quick word ldquoThe Environmentrdquo
bull Section 61 Notices and section 60 Notices PPG24
bull Dealing with the Local Authorities
bull Compliance and conformance
bull Noise Dust No Vibration etc etc etc
bull The right equipment doing the work for you
Questions
Questions
Contact Details
Shaun Knott01234 844100
07730 818267
OR
Lets Just Make It
Quieter
Engineered Noise Reduction
Implications
bull Cost
bull New assessment
bull Review PPE
bull Increase noise control
bull Action plan
bull Time
A quick word ldquoThe Environmentrdquo
bull Section 61 Notices and section 60 Notices PPG24
bull Dealing with the Local Authorities
bull Compliance and conformance
bull Noise Dust No Vibration etc etc etc
bull The right equipment doing the work for you
Questions
Questions
Contact Details
Shaun Knott01234 844100
07730 818267
Lets Just Make It
Quieter
Engineered Noise Reduction
Implications
bull Cost
bull New assessment
bull Review PPE
bull Increase noise control
bull Action plan
bull Time
A quick word ldquoThe Environmentrdquo
bull Section 61 Notices and section 60 Notices PPG24
bull Dealing with the Local Authorities
bull Compliance and conformance
bull Noise Dust No Vibration etc etc etc
bull The right equipment doing the work for you
Questions
Questions
Contact Details
Shaun Knott01234 844100
07730 818267
Engineered Noise Reduction
Implications
bull Cost
bull New assessment
bull Review PPE
bull Increase noise control
bull Action plan
bull Time
A quick word ldquoThe Environmentrdquo
bull Section 61 Notices and section 60 Notices PPG24
bull Dealing with the Local Authorities
bull Compliance and conformance
bull Noise Dust No Vibration etc etc etc
bull The right equipment doing the work for you
Questions
Questions
Contact Details
Shaun Knott01234 844100
07730 818267
Implications
bull Cost
bull New assessment
bull Review PPE
bull Increase noise control
bull Action plan
bull Time
A quick word ldquoThe Environmentrdquo
bull Section 61 Notices and section 60 Notices PPG24
bull Dealing with the Local Authorities
bull Compliance and conformance
bull Noise Dust No Vibration etc etc etc
bull The right equipment doing the work for you
Questions
Questions
Contact Details
Shaun Knott01234 844100
07730 818267
A quick word ldquoThe Environmentrdquo
bull Section 61 Notices and section 60 Notices PPG24
bull Dealing with the Local Authorities
bull Compliance and conformance
bull Noise Dust No Vibration etc etc etc
bull The right equipment doing the work for you
Questions
Questions
Contact Details
Shaun Knott01234 844100
07730 818267
Questions
Questions
Contact Details
Shaun Knott01234 844100
07730 818267
Contact Details
Shaun Knott01234 844100
07730 818267
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