UNIT IV PROJECT OSH4308
Arun1990
OSH4308UnitIVProjectcompleted.docx.docx1
OSH 4308 Unit IV Project
2
OSH 4308 Unit IV Project
OSH 4308 Unit IV Project
Michael Miranda
Columbia Southern University
Be safe consulting Inc. was tasked to work for Acme manufacturing Co. to evaluate the noise levels and if they were or are hazardous. Also, to identify employees that could be affected by the noise levels during their shift. Acme must do this in order to ensure that they can mitigate employee hearing loss. through hearing conservation programs and training
We will be evaluating the Machine shop using the samples that were collected during our sample testing. Although we will not be combining noise levels to get a more accurate reading of the machine shop.
Machine Shop #1
|
Location |
Employee |
Sample #1 |
Sample Time #1 |
|
Stationary Grinding Wheel |
Robert Jones |
82 dBA |
90 min |
|
Drill Press #4 |
Clara Tucker |
89 dBA |
135 min |
|
Metal Shear #2 |
Rick Starnes |
75 dBA |
283 min |
|
Metal Shear #3 |
Jennie Gump |
83 dBA |
114 min |
|
Bench Press #7 |
Bernie Edwards |
73 dBA |
203 min |
|
|
Sample #2 |
Sample Time #2 |
|
|
Stationary Grinding Wheel |
Robert Jones |
91 dBA |
125 min |
|
Drill Press #4 |
Clara Tucker |
79 dBA |
249 min |
|
Metal Shear #2 |
Rick Starnes |
94 dBA |
39 min |
|
Metal Shear #3 |
Jennie Gump |
73 dBA |
239 min |
|
Bench Press #7 |
Bernie Edwards |
79 dBA |
172 min |
|
|
Sample #3 |
Sample Time #3 |
|
|
Stationary Grinding Wheel |
Robert Jones |
83 dBA |
265 min |
|
Drill Press #4 |
Clara Tucker |
81 dBA |
96 min |
|
Metal Shear #2 |
Rick Starnes |
84 dBA |
158 min |
|
Metal Shear #3 |
Jennie Gump |
95 dBA |
127 min |
|
Bench Press #7 |
Bernie Edwards |
83 dBA |
105 min |
Unit IV given values
|
Sample |
Location |
Employee |
Sample dBA |
Sample time |
Max Exposure time |
Dosage |
|
1 |
Stationary Grinding Wheel |
Robert Jones |
82 dBA |
90 min |
24.25147hrs. |
6.20% |
|
2 |
Stationary Grinding Wheel |
Robert Jones |
91 dBA |
125 min |
6.9644hrs. |
29.90% |
|
3 |
Stationary Grinding Wheel |
Robert Jones |
83 dBA |
265 min |
21.11213hrs. |
20.90% |
Appendices A-B
|
Sample |
Location |
Employee |
Sample dBA |
Sample time |
Max Exposure time |
Dosage |
|
1 |
Drill Press # 4 |
Clara Tucker |
89 dBA |
135 min |
8.11hrs. |
27.44% |
|
2 |
Drill Press # 4 |
Clara Tucker |
79 dBA |
249 min |
36.76hrs. |
11.3% |
|
3 |
Drill Press # 4 |
Clara Tucker |
81 dBA |
96 min |
19.43hrs. |
8.24% |
|
Sample |
Location |
Employee |
Sample dBA |
Sample time |
Max Exposure time |
Dosage |
|
1 |
Metal Shear # 2 |
Rick Starnes |
75dBA |
283 min |
64hrs |
7.37% |
|
2 |
Metal Shear # 2 |
Rick Starnes |
94 dBA |
39 min |
4.5948hrs |
14.1% |
|
3 |
Metal Shear # 2 |
Rick Starnes |
84 dBA |
84 min |
18.379hrs |
7.6% |
Appendices E-F
|
Sample |
Location |
Employee |
Sample dBA |
Sample time |
Max Exposure time |
Dosage |
|
1 |
Metal Shear # 3 |
Jennie Gump |
83dBA |
114 min |
21.1hrs |
8.9% |
|
2 |
Metal Shear # 3 |
Jennie Gump |
73 dBA |
239 min |
5066hrs |
4.7% |
|
3 |
Metal Shear # 3 |
Jennie Gump |
95 dBA |
127 min |
4hrs |
52.9% |
Appendices G-H
|
Sample |
Location |
Employee |
Sample dBA |
Sample time |
Max Exposure time |
Dosage |
|
1 |
Bench Press #7 |
Bernie Edwards |
73dBA |
203 min |
5066.910min |
4% |
|
2 |
Bench Press #7 |
Bernie Edwards |
79 dBA |
172 min |
2205.48min |
7.8% |
|
3 |
Bench Press #7 |
Bernie Edwards |
83 dBA |
105 min |
1266.7278Min |
8.3% |
Appendices I-J
Taking into consideration all of the results from the sampling all process could use hearing protection or be part of a hearing conservation program. when doing the work that reaches over 90dBA. But without combining dBA level we cannot determine if it is necessary all of the time or only partially.
Carpentry shop #2
Next, we will be tasked to study the #2 Carpentry shop containing these six machines running constantly table saws, jointers, planners, drill press and the exhaust systems. A determination must be made if the shop is a hazardous noise area since there are 10 employees working in the area. there is some importance to doing this since the employees may need to be also added to the hearing protection program (Unit IV)
|
Machine |
Noise Level (dBA) |
|
Table Saw #3 |
92 dBA |
|
Jointer #4 |
87 dBA |
|
Table Saw #5 |
90 dBA |
|
Exhaust Ventilation System |
80 dBA |
|
Planer #2 |
84 dBA |
|
Drill Press #1 |
79 dBA |
Unit IV given values
Formula for analysis from (Yates 2015)
(Unfortunately, I did not know how to use this method to calculate the dBA so I used the lengthier method I did want to include what the formula should look like so as to calculate it properly )
Or alternately you can subtract dBA reading on machine1 from machine2 and look at the table on page 277of our text book Yates 2015. We then add that number to the higher decibel level and we continue this through all machines.
|
Machine |
Noise Level (dBA) |
|
|
|
Table Saw #3 |
92 dBA |
|
|
|
Jointer #4 |
87 dBA |
92-87=5 |
92+1.2=93.2 |
|
Table Saw #5 |
90 dBA |
93.2-90=3.2 |
93.2+1.8=95 |
|
Exhaust Ventilation System |
80 dBA |
95-80=15 |
0+95=95 |
|
Planer #2 |
84 dBA |
95-84=9 |
.5+95=95.5 |
|
Drill Press #1 |
79 dBA |
79-95.5=16.5 |
95.5-0=95.5 |
The total for all of the machines combined is equal to 95.5 dBA combined would require to be part of a hearing conservation program and hearing protection worn when working or entering this area.
Lastly, we will be looking at the Electronic repair shop. converting the SPL to W/ as requested by the project engineer. Since they are considering remodeling and installing noise insulation in the shop. All of the noise history is given in N/
Electric Communication Repair Shop
|
Location |
SPL (N/m²) |
||
|
East Wall |
0.0683 N/m² |
||
|
North Wall |
0.0699 N/m² |
||
|
South Wall |
0.0813 N/m² |
|
|
|
West Wall |
0.0742 N/m² |
Given Values
Formula for conversion
I=
|
Location |
Formula |
|
W/m2 |
|
East |
|
|
|
|
North |
|
|
|
|
South |
|
|
|
|
West |
|
|
|
In conclusion the two initial assessments done in the machine shop and in the carpentry shop I have concluded that both of those areas need to be a part of the hearing conservation program. The machine shop depending on the process could not be required to wear hearing protection continuously, but employees in this area should be trained and monitored in the hearing conservation program. Hearing protection should be available to them and in close proximity or worn on the employee to be used as needed.
The carpentry shop is in definite need of hearing conservation programs. since the average combined dBA in the shop is 95.5 dBA. this should be done as soon as possible and all employees in the shop should be trained on the proper wear of PPE.
Appendices
|
T1= |
= |
= 24.25147Hrs x 60Min |
=1455.0882min |
||
|
Sample 2 |
T2= |
= |
= |
= 6.9644Hrs x 60Min |
= 417.864 Min |
|
T3= |
= |
= |
= 21.11213Hrs x 60Min |
=1266.7278Min |
Appendix A
|
Sample 1 |
|
|
|
6.2% |
|
Sample 2 |
|
|
|
29.9% |
|
Sample 3 |
|
|
|
20.9% |
Appendix B
|
Sample1 |
|
|
|
|
|
|
|
|
|
|
=2205.48min |
|
|
Sample 3 |
|
= |
|
|
=1165.62min |
Appendix C
|
Sample1 |
|
|
|
27.44% |
|
Sample2 |
|
|
=11.2902% |
11.3% |
|
Sample3 |
|
|
=8.23596% |
8.24% |
Appendix D
|
Sample 1 |
T1= |
= |
= |
= 64hrs x 60Min |
=3840min |
|
Sample 2 |
T2= |
= |
= |
= 4.5948hrs x 60Min |
= 275.688min |
|
Sample 3 |
T3= |
= |
= |
= 18.37917hrs x 60Min |
=1102.74min |
|
Sample1 |
|
|
|
7.37% |
|
Sample2 |
|
|
=14.1464% |
14.1% |
|
Sample3 |
|
|
=7.61739% |
7.6% |
Appendix F
|
Sample 1 |
T1= |
= |
= |
= 21.11213hrs x 60Min |
=1266.7278min |
|
Sample 2 |
T2= |
= |
= |
= 84.44851hrs x 60Min |
= 5066.910min |
|
Sample 3 |
T3= |
= |
= |
= 4hrs x 60Min |
=240 min |
Appendix G
|
Sample1 |
|
|
|
8.9% |
|
Sample2 |
|
|
=4.71689%% |
4.7% |
|
Sample3 |
|
|
=52.916% |
52.9% |
Appendix H
|
T1= |
= |
= |
= 84.44851hrs x 60Min |
= 5066.910min |
|
|
Sample 2 |
T2= |
= |
= |
|
= 2205.48min |
|
Sample 3 |
T3= |
= |
= |
= 21.11213Hrs x 60Min |
=1266.7278Min |
Appendix I
|
|
|
|
4% |
|
|
203Sample2 |
|
|
=7.79876% |
7.8% |
|
Sample3 |
|
|
=8.28907% |
8.3% |
Appendix J
References
Yates, W. D. (2015). Safety professional’s reference and study guide (2nd ed.). Boca Raton, FL: CRC Press.
