Dear all,
Thanks a lot for gr8 discussion but sorry i m late.
i would also lokie to add something.
*Sound has both frequency & intensity
*Frequency or pitch-measured no. of sound vibrations per second
*higher the frequency---higher the pitch
*Intensity-degree of strength or energy
*Noise Induced Hearing Loss---i) Frequency
ii) Intensity
*Intensity over 130db is painful & damage hearing
*Critical level-85-120db not painful but damage ears
Concequences:
1. Difficulty in hearing Background noise
2. Specific hearing limitations;loss happen in high frequencies
OHSAS-requirement for training prog.
1.Employee Training-i) Effects of noise
ii) Hearing protection
iii) Audiometric test
iv) measuring noise
2. Exposure monitoring
3.Aduiometric test
4.Employee follow up
5.Record keeping
6.Noise control
7.Hearing Protection Devices
To measure noise:
DOSIMETER: Body worn instrument,measures & stores sound over time & can be read later
Engg. Surverys:Require sophisticated acoustical equipment that register db level,frequency,intensity of noise from machinery.
Audiometric Test: within 6 months of first exposure to critical level.It measures softests sound you can hear at each test frequency.
* Standard Threshhold Shift:
Significant but decresaes in ability to hear at frequencies first effected by noise exposure.
Notify within 21 days
Some more i will added soon.....lights gone & need to logout.
From India, Udaipur
198Thanks a lot for gr8 discussion but sorry i m late.
i would also lokie to add something.
*Sound has both frequency & intensity
*Frequency or pitch-measured no. of sound vibrations per second
*higher the frequency---higher the pitch
*Intensity-degree of strength or energy
*Noise Induced Hearing Loss---i) Frequency
ii) Intensity
*Intensity over 130db is painful & damage hearing
*Critical level-85-120db not painful but damage ears
Concequences:
1. Difficulty in hearing Background noise
2. Specific hearing limitations;loss happen in high frequencies
OHSAS-requirement for training prog.
1.Employee Training-i) Effects of noise
ii) Hearing protection
iii) Audiometric test
iv) measuring noise
2. Exposure monitoring
3.Aduiometric test
4.Employee follow up
5.Record keeping
6.Noise control
7.Hearing Protection Devices
To measure noise:
DOSIMETER: Body worn instrument,measures & stores sound over time & can be read later
Engg. Surverys:Require sophisticated acoustical equipment that register db level,frequency,intensity of noise from machinery.
Audiometric Test: within 6 months of first exposure to critical level.It measures softests sound you can hear at each test frequency.
* Standard Threshhold Shift:
Significant but decresaes in ability to hear at frequencies first effected by noise exposure.
Notify within 21 days
Some more i will added soon.....lights gone & need to logout.
From India, Udaipur
Dear all,
Here are some more information that was left out in above post.
*Point of control of Noise:
i) At source-lubricating moving/rotating parts,tightening vibrating surfaces,replacing old parts
ii)By rotues travelled-by using Sound absorbing materials-cushing,padding using rubber parts
iii)Individual exposure-cover metal wall with insulation,make sound barriers.
*Hearing Protection:
i)Ear plug
ii)Ear muff
iii)Banded Protection-Inserted in ear cannel to block noise.
*Noise Reduction Rating (NRR) :Hearing protection devices are rated for their effectiveness in decresing noise.This is called NRR.
NRR is compared to work environment's monitered noise level.
To calculate Adequate protection: Divide NRR in Half.
*EAR PLUG: (Reducing rating from 21-33 db)
i) Formable-fine glass fiber,wax filled cotton,expandable plastic or foam.
One time use,decrease sound by expanding to seal ear canal opening.
ii)Customer moulded-Designed for individual,silicon,rubber,plasic moulding
iii) Pre-moulded-Silicon,rubber,plastic; Vary in size,shape,fits to seal the ear.
ADVANTAGES of Earplug:
inexpensive,poartable,comfortable,do not interfere with headgears,Do not restrict head movements.
Disadvantages:
Difficult to fit,
Dirt into ear,lost,fall out,protection level varies.
*BANDED PLUGS: Soft form,rubber,soft plastic,Plastic cover sponge,
lowest NRR-17 to 25 db reduction may be appriopate as low 90 db,not always versitile with headgear.
*FORM EARPLUGS: Highest NRR
Protection depend on how fit it is in ear.
Regards,
Hansa
From India, Udaipur
Here are some more information that was left out in above post.
*Point of control of Noise:
i) At source-lubricating moving/rotating parts,tightening vibrating surfaces,replacing old parts
ii)By rotues travelled-by using Sound absorbing materials-cushing,padding using rubber parts
iii)Individual exposure-cover metal wall with insulation,make sound barriers.
*Hearing Protection:
i)Ear plug
ii)Ear muff
iii)Banded Protection-Inserted in ear cannel to block noise.
*Noise Reduction Rating (NRR) :Hearing protection devices are rated for their effectiveness in decresing noise.This is called NRR.
NRR is compared to work environment's monitered noise level.
To calculate Adequate protection: Divide NRR in Half.
*EAR PLUG: (Reducing rating from 21-33 db)
i) Formable-fine glass fiber,wax filled cotton,expandable plastic or foam.
One time use,decrease sound by expanding to seal ear canal opening.
ii)Customer moulded-Designed for individual,silicon,rubber,plasic moulding
iii) Pre-moulded-Silicon,rubber,plastic; Vary in size,shape,fits to seal the ear.
ADVANTAGES of Earplug:
inexpensive,poartable,comfortable,do not interfere with headgears,Do not restrict head movements.
Disadvantages:
Difficult to fit,
Dirt into ear,lost,fall out,protection level varies.
*BANDED PLUGS: Soft form,rubber,soft plastic,Plastic cover sponge,
lowest NRR-17 to 25 db reduction may be appriopate as low 90 db,not always versitile with headgear.
*FORM EARPLUGS: Highest NRR
Protection depend on how fit it is in ear.
Regards,
Hansa
From India, Udaipur
Dear Hansa,
Thanks for your all inputs specially on this Noice/Sound thread.
Dear Kesav,Hansa,Abhay,
Thanks a lot to share a worth/valuable information regarding noice/sound.This thread specially help to me know about Noice/Sound i learned a lot from this thread. . .
Dear Members,
Anybudy have questions please come forward ,,,,,, otherwise we will close this thread ......
From United States, Fpo
Thanks for your all inputs specially on this Noice/Sound thread.
Dear Kesav,Hansa,Abhay,
Thanks a lot to share a worth/valuable information regarding noice/sound.This thread specially help to me know about Noice/Sound i learned a lot from this thread. . .
Dear Members,
Anybudy have questions please come forward ,,,,,, otherwise we will close this thread ......
From United States, Fpo
Dear Seniors,
I am new in this site & It is a really best platform for learnig for fresh candidate.
1) There is a any special training is required for noise monitoring?
2) Who is the responsible person for Monitoring Of Noise (Safety Officer Or Environment Person)
It was a really great discussions on a Noise & I want to know this quries answers
Thanks in advance for your inputs....
Regards,
Ramchandra
From India, Kolhapur
I am new in this site & It is a really best platform for learnig for fresh candidate.
1) There is a any special training is required for noise monitoring?
2) Who is the responsible person for Monitoring Of Noise (Safety Officer Or Environment Person)
It was a really great discussions on a Noise & I want to know this quries answers
Thanks in advance for your inputs....
Regards,
Ramchandra
From India, Kolhapur
Dear Ram Chandra,
OHSAS-requirement for training prog.
1.Employee Training-i) Effects of noise
ii) Hearing protection
iii) Audiometric test
iv) measuring noise
2. Exposure monitoring
3.Aduiometric test
4.Employee follow up
5.Record keeping
6.Noise control
7.Hearing Protection Devices
To measure noise:
DOSIMETER: Body worn instrument,measures & stores sound over time & can be read later
Engg. Surverys:Require sophisticated acoustical equipment that register db level,frequency,intensity of noise from machinery.
Audiometric Test: within 6 months of first exposure to critical level.It measures softests sound you can hear at each test frequency.
Noise monitering by Dosimeter is done by environment deptt.(in our plant). Audiometric test is done by Doctor.and Engg. Survey can be done by Safety Deptt.
Seniors waiting for your views too..............
Regards,
Hansa Vyas
From India, Udaipur
OHSAS-requirement for training prog.
1.Employee Training-i) Effects of noise
ii) Hearing protection
iii) Audiometric test
iv) measuring noise
2. Exposure monitoring
3.Aduiometric test
4.Employee follow up
5.Record keeping
6.Noise control
7.Hearing Protection Devices
To measure noise:
DOSIMETER: Body worn instrument,measures & stores sound over time & can be read later
Engg. Surverys:Require sophisticated acoustical equipment that register db level,frequency,intensity of noise from machinery.
Audiometric Test: within 6 months of first exposure to critical level.It measures softests sound you can hear at each test frequency.
Noise monitering by Dosimeter is done by environment deptt.(in our plant). Audiometric test is done by Doctor.and Engg. Survey can be done by Safety Deptt.
Seniors waiting for your views too..............
Regards,
Hansa Vyas
From India, Udaipur
Dear Hansa,
Thanks a lot for your quick response I was add some points from my side.
OSHA TRAINING REQUIREMENT1910.95(i)(4):
(4) The employer shall provide training in the use and care of all hearing
Protectors provided to employees.
(1) The employer shall institute a training program for all employees who are
Exposed to noise at or above an 8-hour time weighted average of 85 decibels,
And shall ensure employee participation in such program.
(2) The training program shall be repeated annually for each employee included
In the hearing conservation program. Information provided in the training
Program shall be updated to be consistent with changes in protective equipment
And work processes.
(3) The employer shall ensure that each employee is informed of the
Following:
(i) The effects of noise on hearing;
(ii) The purpose of hearing protectors, the advantages, disadvantages, and
Attenuation of various types, and instructions on selection, fitting, use, and care;
And
(iii) The purpose of audiometric testing, and an explanation of the test
Procedures.
Dear seniors/all,
I have one question safety trainer required any special certification to conduct training programs if yes means what type of certification they required if no means who is the component person to conduct training (safety dept/Hr dept...)
Thanks in advance. . .
From United States, Fpo
Thanks a lot for your quick response I was add some points from my side.
OSHA TRAINING REQUIREMENT1910.95(i)(4):
(4) The employer shall provide training in the use and care of all hearing
Protectors provided to employees.
(1) The employer shall institute a training program for all employees who are
Exposed to noise at or above an 8-hour time weighted average of 85 decibels,
And shall ensure employee participation in such program.
(2) The training program shall be repeated annually for each employee included
In the hearing conservation program. Information provided in the training
Program shall be updated to be consistent with changes in protective equipment
And work processes.
(3) The employer shall ensure that each employee is informed of the
Following:
(i) The effects of noise on hearing;
(ii) The purpose of hearing protectors, the advantages, disadvantages, and
Attenuation of various types, and instructions on selection, fitting, use, and care;
And
(iii) The purpose of audiometric testing, and an explanation of the test
Procedures.
Dear seniors/all,
I have one question safety trainer required any special certification to conduct training programs if yes means what type of certification they required if no means who is the component person to conduct training (safety dept/Hr dept...)
Thanks in advance. . .
From United States, Fpo
Dear Seniors,
Thanks for your valuable inputs on this thread
Now I would like to know that how to evalute the Ear Muffs or Ear Plug as per the international standerds if available (Reusebale Or Dispossable ? Which will be the best in the industry..?
Waiting here for your inputs.
Reagards.
Saudagar Bhossale
From Czech Republic, Mlada Boleslav
Thanks for your valuable inputs on this thread
Now I would like to know that how to evalute the Ear Muffs or Ear Plug as per the international standerds if available (Reusebale Or Dispossable ? Which will be the best in the industry..?
Waiting here for your inputs.
Reagards.
Saudagar Bhossale
From Czech Republic, Mlada Boleslav
Dear All,
The word of noise is derived from the Latin term ‘nausea’.
Noise is a type of atmospheric pollution in the form of waves . It is an shadowy public enemy. It is increased in the modern age of industrialization and
technological advancement.
Many industrial psychologists and environmentalists have defined the term noise:
1. Harrell defines noise as ‘an unwanted sound which increases fatigue and some industrial conditions it causes deafness’.
2. According to environmental Health criteria ‘noise is considered as any unwanted sound that may adversely affect the health and well-being of individuals or the
population’
What is sound ?
Physically Sound is a mechanical disturbance propagated as a wave motion in air and other elastic or mechanical media such as water or steel.
And Physiologically, it is an auditory sensation evoked by this physical phenomenon(fact of occurrence).
The human ear is very sensitive to sound waves of frequency 20Hertz(unit of frequency ,one cycle per second) to 2000Hz pitch, but not all sounds are detectable
by the human ear. There are 2 types of sounds:
1. ULTRA SOUND
2. INTRA SOUND
1.Ultra sound:- is that sound in which the frequency range exceeds approximately 15Hz. It is beyond the upper limit of normal hearing, that is it has a frequency too high to excite the sensation f hearing.
2. Intra sound: - is that sound in which sound is below a frequency of about 16Hz. It is below the lower limit of normal hearing. It is commonly referred as vibration.
With Regards,
Rohan Puthran
From India, Karamsad
The word of noise is derived from the Latin term ‘nausea’.
Noise is a type of atmospheric pollution in the form of waves . It is an shadowy public enemy. It is increased in the modern age of industrialization and
technological advancement.
Many industrial psychologists and environmentalists have defined the term noise:
1. Harrell defines noise as ‘an unwanted sound which increases fatigue and some industrial conditions it causes deafness’.
2. According to environmental Health criteria ‘noise is considered as any unwanted sound that may adversely affect the health and well-being of individuals or the
population’
What is sound ?
Physically Sound is a mechanical disturbance propagated as a wave motion in air and other elastic or mechanical media such as water or steel.
And Physiologically, it is an auditory sensation evoked by this physical phenomenon(fact of occurrence).
The human ear is very sensitive to sound waves of frequency 20Hertz(unit of frequency ,one cycle per second) to 2000Hz pitch, but not all sounds are detectable
by the human ear. There are 2 types of sounds:
1. ULTRA SOUND
2. INTRA SOUND
1.Ultra sound:- is that sound in which the frequency range exceeds approximately 15Hz. It is beyond the upper limit of normal hearing, that is it has a frequency too high to excite the sensation f hearing.
2. Intra sound: - is that sound in which sound is below a frequency of about 16Hz. It is below the lower limit of normal hearing. It is commonly referred as vibration.
With Regards,
Rohan Puthran
From India, Karamsad
Dear Rohanputhran,
Reproduced below is part of your post..
"The human ear is very sensitive to sound waves of frequency 20Hertz(unit of frequency ,one cycle per second) to 2000Hz pitch, but not all sounds are detectable"
If you do not intent to check and correct kindly state 'from where did you get such an information'- it is new to me!
Regards,
Kesava Pillai
From India, Kollam
Reproduced below is part of your post..
"The human ear is very sensitive to sound waves of frequency 20Hertz(unit of frequency ,one cycle per second) to 2000Hz pitch, but not all sounds are detectable"
If you do not intent to check and correct kindly state 'from where did you get such an information'- it is new to me!
Regards,
Kesava Pillai
From India, Kollam
DEAR KESHAV SIR,
"The human ear is very sensitive to sound waves of frequency 20Hertz(unit of frequency ,one cycle per second) to 2000Hz pitch, but not all sounds are detectable"
I REFERRED THIS INFORMATION FROM THE BOOK " MANUAL OF ENVIRONMENT & POLLUTION LAWS" WRITTEN BY B.K DUBEY (ADVOCATE HIGH COURT) & H.K BHARTI.(DIRECTOR & CO-ORDINATOR TRANSNATIONAL NETWORK)
WITH REGARDS,
ROHAN.P
From India, Karamsad
"The human ear is very sensitive to sound waves of frequency 20Hertz(unit of frequency ,one cycle per second) to 2000Hz pitch, but not all sounds are detectable"
I REFERRED THIS INFORMATION FROM THE BOOK " MANUAL OF ENVIRONMENT & POLLUTION LAWS" WRITTEN BY B.K DUBEY (ADVOCATE HIGH COURT) & H.K BHARTI.(DIRECTOR & CO-ORDINATOR TRANSNATIONAL NETWORK)
WITH REGARDS,
ROHAN.P
From India, Karamsad
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Road Construction Noise Awareness.ppt