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I accept no liability for any loss and/or damage suffered by any person in reliance to the data provided in this database. HSG 170 Vibration Solutions.
The Havs Calculator is very easy to use, just copy and paste the figures from the main HAVS Database
The Whole Body Calculator, works on the same principle.
I can speak personally on the subject of Noise, Many years of Working in noisy environments, and how hearing can be impaired and severely damaged.
These links are provided for your information
This database of hand/arm vibration levels is compiled using information provided by the manufacturers after many hours of careful study, many thanks to the companies that replied to my many emails and phone calls and also to the HAE
Next you will find the Daily and Weekly Noise Calculators from the HSE, extremely useful calculators, to keep you informed of the exposure limits. I can speak personally on this, as I was injured by Noise.
The last Parts of the Database are Calculators so we can make informed decisions if the Hearing Protection we can offer are adequate for the Noise levels that can be incurred in our daily working life.
http://www.thecc.org.uk/downloads/HAV.pdfVibration Databasehttp://www.scafftag.com/fshome.asphttp://www.invc.co.uk/http://www.hse.gov.uk/foi/internalops/fod/inspect/havs.pdfhttp://www.hse.gov.uk/vibration/http://www.hse.gov.uk/pubns/indg296.pdfhttp://www.industrialsafetytalk.com/news/toa/toa100.htmlhttp://www.tuc.org.uk/h_and_s/index.cfm?mins=343http://www.safeandhealthyworking.com/main-section/workplace-topics/vibration.cfmhttp://www.opsi.gov.uk/si/si2005/20051093.htmhttp://www.hse.gov.uk/noise/
Copyright M Sutton 27/04/06
Noise & Vibration Figures
Manufacturer Model Noise dB(A) Makita All Rotary Drills 2.5
Copyright M Sutton 27/04/06
DAILY HAVS EXPOSURE RECORD
SITE /
LOCATION:
PRINT FULL NAME:
JOB TITLE:
SIGNATURE DATE:
Tool Type Tool ID No Vibration
Level (m/s2)
Maximum Daily Use (hours)
1
2
3
4
Tool 1 Tool 2 Tool 3 Tool 4
Start Stop Usage(hrs)
Start Stop Usage(hrs)
Start Stop Usage(hrs)
Start Stop Usage(hrs)
Total time used: Total time used: Total time used: Total time used:
TOTAL EXPOSURE FOR THE DAY
Note: Record actual trigger time only, NOT time for the whole job
Precautions Taken:
Comments:
Supervisor : (Print Name)
Signature: Date:
DAILY HAVS EXPOSURE RECORD
SITE /
LOCATION:
PRINT FULL NAME:
JOB TITLE:
SIGNATURE DATE:
Tool Type Tool ID No Vibration
Level (m/s2)
Maximum Daily Use (hours)
1
2
3
4
Tool 1 Tool 2 Tool 3 Tool 4
Start Stop Usage(hrs)
Start Stop Usage(hrs)
Start Stop Usage(hrs)
Start Stop Usage(hrs)
Total time used: Total time used: Total time used: Total time used:
TOTAL EXPOSURE FOR THE DAY
Note: Record actual trigger time only, NOT time for the whole job
Precautions Taken:
Comments:
Supervisor : (Print Name)
Signature: Date:
DAILY HAVS EXPOSURE RECORD
SITE /
LOCATION:
PRINT FULL NAME:
JOB TITLE:
SIGNATURE DATE:
Tool Type Tool ID No Vibration
Level (m/s2)
Maximum Daily Use (hours)
1
2
3
4
Tool 1 Tool 2 Tool 3 Tool 4
Start Stop Usage(hrs)
Start Stop Usage(hrs)
Start Stop Usage(hrs)
Start Stop Usage(hrs)
Total time used: Total time used: Total time used: Total time used:
TOTAL EXPOSURE FOR THE DAY
Note: Record actual trigger time only, NOT time for the whole job
Precautions Taken:
Comments:
Supervisor : (Print Name)
Signature: Date:
DAILY HAVS EXPOSURE RECORD
SITE /
LOCATION:
PRINT FULL NAME:
JOB TITLE:
SIGNATURE DATE:
Tool Type Tool ID No Vibration
Level (m/s2)
Maximum Daily Use (hours)
1
2
3
4
Tool 1 Tool 2 Tool 3 Tool 4
Start Stop Usage(hrs)
Start Stop Usage(hrs)
Start Stop Usage(hrs)
Start Stop Usage(hrs)
Total time used: Total time used: Total time used: Total time used:
TOTAL EXPOSURE FOR THE DAY
Note: Record actual trigger time only, NOT time for the whole job
Precautions Taken:
Comments:
Supervisor : (Print Name)
Signature: Date:
Hand Arm Vibration - Exposure Points Ready Reckoner
40 80030 450 90025 315 625 125020 200 400 80019 180 360 720 145018 160 325 650 130017 145 290 580 115016 130 255 510 100015 115 225 450 900 135014 98 195 390 785 120013 85 170 340 675 100012 72 145 290 575 86511 61 120 240 485 72510 50 100 200 400 6009 41 81 160 325 4858 32 64 130 255 3857 25 49 98 195 2956 18 36 72 145 215
5.5 15 30 61 120 1805 13 25 50 100 150
4.5 10 20 41 81 1204 8 16 32 64 96
3.5 6 12 25 49 743 5 9 18 36 54
2.5 3 6 13 25 382 2 4 8 16 24
1.5 1 2 5 9 141 1 1 2 4 6
15 Mins 30 Mins 1 Hour 2 Hours 3 Hours
Daily Exposure Time
Vib
rati
on
Mag
nit
ud
e m
/s2
Hand Arm Vibration - Exposure Points Ready Reckoner
13501150 1450970 1200 1450800 1000 1200650 810 970 1300510 640 770 1000 1200390 490 590 785 865290 360 430 575 720240 305 365 485 605200 250 300 400 500160 205 245 325 405130 160 190 255 32098 125 145 195 24572 90 110 145 18050 63 75 100 12532 40 48 64 8018 23 27 36 458 10 12 16 20
4 Hours 5 Hours 6 Hours 8 Hours 10 Hours
Daily Exposure Time
Hand-arm vibration exposure calculator for proposed Control of Vibration at Work Regulations
Health and Safety Executive Version 2: November 2003
HAND-ARM VIBRATION EXPOSURE CALCULATOR Version 3 June 2005
Vibration Exposure Time to reach EAV Time to reach ELV Exposure Partial Partial
magnitude points t ti duration time exposure par exposure
m/s² r.m.s. per hour hours minutes hours minutes hours minutes points
Tool or process 1 0
Tool or process 2 0
Tool or process 3 0
Tool or process 4 0
Tool or process 5 0
Tool or process 6 0
0
Instructions for use: Daily Total
exposure exposure
Enter vibration magnitudes and exposure durations in the white areas. points
To calculate, press the Enter key, or move the cursor to a different cell.
The results are displayed in the yelllow areas.
To clear all cells, click on the 'Reset' button.
For more information, click the HELP tab below.
2.5 m/s2 A(8) 5 m/s2 A(8)
m/s² A(8)
m/s² A(8)
Whole-body vibration exposure calculator for proposed Control of Vibration at Work Regulations
Health and Safety Executive Version 2 October 2003
WHOLE-BODY VIBRATION EXPOSURE CALCULATOR Version 2.1 November 2003
Measured VDV measurement Vibration Exposure Partial Partial
VDV duration magnitude duration VDV exposure
hours minutes sec m/s² r.m.s. hours minutes sec part
Exposure 1 0 0 0
Exposure 2 0 0 0
Exposure 3 0 0 0
Exposure 4 0 0 0
Exposure 5 0 0 0
Exposure 6 0 0 0
0
Time to reach EAV Time to reach EAV Time to reach ELV Total Total
(VDV option) (A(8) option only) VDV exposure
time in time in time i
hours minutes hours hours minutes hours hours minutes hours
Exposure 1 0.000000 0.000000
Exposure 2
Exposure 3
Exposure 4
Exposure 5
Exposure 6
Instructions for use:
Enter values in the white areas. To calculate, press the Enter key, or move the cursor to a different cell.
Results are displayed in the yellow areas. To clear all cells, click on the 'Reset' button.
For more information, click on the HELP tab below. eVDV VDV
eVDV versiontrue VDV version
eVDV VDV time to EAV (hrs)time to EAV (hrs)
Exposure 1 0.00
Exposure 2 0.00
Exposure 3 0.00
Exposure 4 0.00
Exposure 5 0.00
Exposure 6 0.00
m/s1.75 m/s1.75 m/s² A(8)
(A(8) option)
9.1 m/s1.75 VDV 0.5 m/s2 A(8) 1.15 m/s2 A(8) m/s1.75 m/s² A(8)
Exposure Calculator
Job / task 1
Job / task 2
Job / task 3
Job / task 4
Job / task 5
Job / task 6
Job / task 7
Job / task 8
Total duration
Instructions for exposure calculator
Rounding noise levels to the nearest decibel and durations to the nearest 15 minutes (0.25 hours) is sufficiently precise.
Reference: Control of Noise at Work Regulations 2005, Schedule 1 Part 1
Noise Level (LAeq dB)
Exposure duration (hours)
Exposure points (job/task)
Exposure points per hour
Note: Exposure points can be used to prioritise noise control. The highest exposure points are given by the jobs, tasks, etc. which make the greatest contributions to daily noise exposure. Therefore, tackling these noise exposures will have the greatest e
You can enter data in the white cells only
Daily noise exposure (LEP,d)
Enter the LAeq (in dB) and select the daily exposure duration (in hours) in the white areas for up to eight jobs or tasks carried out by a person during their working day
Exposure points will appear for each entry and the overall daily personal noise exposure (LEP,d) will be displayed.
The Lower Exposure Action Value (an LEP,d of 80 dB) is represented by 32 exposure points, the Upper Exposure Action Value (LEP,d of 85 dB) by 100 points.
Weekly Noise Exposure Calculator
Day 1
Day 2
Day 3
Day 4
Day 5
Day 6
Day 7
dB
Instructions for weekly exposure calculator
Leave a blank for the days not worked.
Reference: Control of Noise at Work Regulations 2005, Schedule 1 Part 2
Daily exposure (LEP,d dB)
You can enter data in the white cells only
LEP,w
Enter the daily personl noise exposure LEP,d (in dB) in the white areas for the days worked in the week.
The weekly personal noise exposure (LEP,w) will be displayed.
(in dB) in the white areas for the days worked in the week.
This spreadsheet contains calculators for three different methods of estimating the performance of hearing protection.
Each of the methods requires you to have information about the noise, and about the capabilities of the protector you are assessing.
The HML method can be used if you know both the A-weighted and C-weighted noise levelsThe octave band method can be used if you know the noise levels in frequency bands The SNR method can be used if you know the C-weighted noise levels
All three methods are nearly equivalent in their accuracy in the majority of noise situations.
Each calculator is on a separate 'tab' within the spreadsheet. Click on the tab to go to the appropriate calculator.You can also move between the tabbed sheets by pressing Ctrl+Page Up or Ctrl+Page Down.
A-weighted noise level (dB)85-9090-9595-100100-105
The table below gives an indication of the protector factor that is likely to be suitable for different levels of noise. It based on the single number rating (SNR) value provided with a hearing protection device. The information is intended as a guide rat
This spreadsheet contains calculators for three different methods of estimating the performance of hearing protection.
Each of the methods requires you to have information about the noise, and about the capabilities of the protector you are assessing.
The HML method can be used if you know both the A-weighted and C-weighted noise levelsThe octave band method can be used if you know the noise levels in frequency bands The SNR method can be used if you know the C-weighted noise levels
All three methods are nearly equivalent in their accuracy in the majority of noise situations.
Each calculator is on a separate 'tab' within the spreadsheet. Click on the tab to go to the appropriate calculator.You can also move between the tabbed sheets by pressing Ctrl+Page Up or Ctrl+Page Down.
Select a protector with an SNR of …20 or less20-3025-3530 or more
The table below gives an indication of the protector factor that is likely to be suitable for different levels of noise. It based on the single number rating (SNR) value provided with a hearing protection device. The information is intended as a guide rat
HML Method
You can use this method if you know both the A-weighted and C-weighted noise levels
Data on the hearing protector H M
Noise levels
dB
dB at the ear
Colour codes:
Protector gives adequate protection, and does not 'over-protect'
Protector does not give adequate protection, or it 'over-protects'
Each calculator is on a separate 'tab' within the spreadsheet. Click on the tab to go to the appropriate calculator.You can also move between the tabbed sheets by pressing Ctrl+Page Up or Ctrl+Page Down.
A-weighted noise level, LA
C-weighted noise level, LC
Calculated level at the ear according to BS EN ISO 4869-2:1995 (a=1)
HSE recommends allowing 4dB for 'real-world' factors. Assume that this device will give:
You can use this method if you know both the A-weighted and C-weighted noise levels Enter values in all white cells.
L
dB
dB
Each calculator is on a separate 'tab' within the spreadsheet. Click on the tab to go to the appropriate calculator.You can also move between the tabbed sheets by pressing Ctrl+Page Up or Ctrl+Page Down.
Select a protector so that daily exposure is reduced to at least below 85 dB. Ideally, aim for between 80 and 75 at the ear. Avoid protectors resulting in less than 70 dB at the ear - this is 'over-protection' (see BS EN 458:2004).
Select a protector so that daily exposure is reduced to at least below 85 dB. Ideally, aim for between 80 and 75 at the ear. Avoid protectors resulting in less than 70 dB at the ear - this is
Octave band method
You can use this method if you know the noise levels in frequency bands
Octave band centre frequency (Hz) 63 125 250
Data on the hearing protectorMean attenuation (dB)Standard deviation in attenuation (dB)
Noise levels (dB)
dB
dB at the ear
Colour codes:
Protector gives adequate protection, and does not 'over-protect'
Protector does not give adequate protection, or it 'over-protects'
Each calculator is on a separate 'tab' within the spreadsheet. Click on the tab to go to the appropriate calculator.You can also move between the tabbed sheets by pressing Ctrl+Page Up or Ctrl+Page Down.
Enter values in all white cells. If the hearing protector data is stated in terms of 'Assumed Protection Values', APV or similar, then enter the APV values in the 'Mean' row, and leave the 'Standard deviation' row blank or with zeros.
Calculated level at the ear according to BS EN ISO 4869-2:1995 (a=1)
HSE recommends allowing 4dB for 'real-world' factors. Assume that this device will give:
500 1000 2000 4000 8000 A-weighted
Each calculator is on a separate 'tab' within the spreadsheet. Click on the tab to go to the appropriate calculator.You can also move between the tabbed sheets by pressing Ctrl+Page Up or Ctrl+Page Down.
Enter values in all white cells. If the hearing protector data is stated in terms of 'Assumed Protection Values', APV or similar, then enter the APV values in the 'Mean' row, and leave the 'Standard deviation' row blank or with zeros.
Select a protector so that daily exposure is reduced to at least below 85 dB. Ideally, aim for between 80 and 75 at the ear. Avoid protectors resulting in less than 70 dB at the ear - this is 'over-protection' (see BS EN 458:2004).
SNR Method
You can use this method if you know the C-weighted noise levels
Data on the hearing protectorSNR
Noise levels
dB
dB
dB at the ear
Colour codes:
Protector gives adequate protection, and does not 'over-protect'
Protector does not give adequate protection, or it 'over-protects'
Each calculator is on a separate 'tab' within the spreadsheet. Click on the tab to go to the appropriate calculator.You can also move between the tabbed sheets by pressing Ctrl+Page Up or Ctrl+Page Down.
C-weighted noise level, LC
Calculated level at the ear according to BS EN ISO 4869-2:1995 (a=1)
HSE recommends allowing 4dB for 'real-world' factors. Assume that this device will give:
Enter values in both white cells.
Each calculator is on a separate 'tab' within the spreadsheet. Click on the tab to go to the appropriate calculator.You can also move between the tabbed sheets by pressing Ctrl+Page Up or Ctrl+Page Down.
Select a protector so that daily exposure is reduced to at least below 85 dB. Ideally, aim for between 80 and 75 at the ear. Avoid protectors resulting in less than 70 dB at the ear - this is 'over-protection' (see BS EN 458:2004).
Exposure CalculatorExposure time
Hours Minutes
Job or process 1
Job or process 2
Job or process 3
Job or process 4
Job or process 5
Job or process 6
Job or process 7
Job or process 8
Err:502 dBA
Instructions for exposure calculator
Exposure time calculator
90 87 85 80
Instructions for exposure time calculator
Noise Level (Leq dBA)
You can enter data in the white cells only
See L108 "Reducing Noise at Work" for guidance on exposure calculations. LEP,d
Enter the Leq (in dBA) and the daily exposure duration (in hours and/or minutes) in the white areas for up to eight jobs or processes.
A factional exposure will appear for each entry and the overall daily personal noise exposure (LEP,d) will be displayed.
Time exposed to reach LEP,d shown (hours, minutes)
Noise Level (Leq dBA)
Enter an Leq value (in dBA), and the time of exposure to reach each of the LEP,d values will be shown in hours and minutes.
To see the time for an LEP,d value of your choice, enter it in the white cell on the right.
Fractional exposure Note: Fractional exposures can
be used to prioritise noise control. The highest fractional exposure values are given by the job or processes which make the greatest contributions to daily noise exposure. Therefore, tackling these noise sources will have t
(in dBA) and the daily exposure duration (in hours and/or minutes) in the white areas for up to eight jobs or processes.
A factional exposure will appear for each entry and the overall daily personal noise exposure (LEP,d) will be displayed.
shown (hours, minutes)
values will be shown in hours and minutes.