noise calibration

Noise Assessment TNSL (Tanner Singleton)

08 Aug 2016

1

Agenda

12

43

Effects of Noise

Equipment & Procedure

Areas of Focus

Novo Nordisk Policy

5 Summary of Results

6 Corrective Action

• Sound is defined as a rapid variation of atmospheric pressure caused by some disturbance of the air.

• Noise is defined as unnecessary, harmful and annoying sound.

Effects of Noise

Presentation title Date 3

• Long term and short term hearing damage-Tinnitus-Muffled hearing

• Reduces productivity• Communication • All damage is Permanente

Effects of Noise


• Occupational noise can be any sound in any work environment• Noise level of 90 dB(A) over a 8 hour time

weighted average require hearing protection• Noise level of 85 dB(A) over a 8 hour day require a Hearing conservation program

OSHA Noise Standard


NN 126911 Noise At Workplaces

Establishes maximum limits for noise at workplaces. The limits are grouped into three categories:

• Noise at workplaces• Unnecessary noise• Room acoustics

Novo Nordisk Noise Policy

Noise at workplaces• The noise level must not exceed 80 dB(A)• Impulse noise must not exceed 125 dB(C) peak.



Unnecessary noise• Avoid unnecessary noise - Noise exceeding any of these levels is

considered to be unnecessary noise.



Single equipment in specific rooms or lines Noise level*

Filling lines, assembly lines, packaging lines 75 dB(A)Inspection lines, storage facilities, kitchens: All types of equipment 70 dB(A)Laboratories Safety benches 60 dB(A)

Fume cupboards 50 dB(A)HPLC cupboards incl. equipment 45 dB(A)Small vacuum pumps 50 dB(A)Table centrifuges 50 dB(A)

Offices: Technical installations, including ventilation 35 dB(A)

Room acoustic- The result of the way in which the size, shape, and materials of a room affect the sound in the room.

• All workrooms must be satisfactory.• Requirements for offices, laboratories and other types of workrooms

are specified using criteria of reverberation time and absorption.



Annoying Noise- Noise that is perceived as annoying.

• 60 dB(A) in areas where undisturbed communication is needed• 45-50 dB(A) in areas where concentration demanding work is carried

out.



• Map and assess the existing noise environment if it is suspected that the limits for noise at workplaces are not in compliance with requirements described in this procedure

• Assess the existing noise environment in order to ascertain the existence of unnecessary and harmful noise if employees complain about inconveniences associated with noise at the workplace.



• Areas thought to exceed 80 dB(A) -Chiller yard-Building 1 Interstitial space 1.2.004-Mechanical Mezzanine-Boilers-Clean utilities

• All Fume hoods and Biological cabinets

Areas of Focus


Equipment & Process


• Quest Model 2800 impulse integrating type 2 sound level meter. • QC-10 Calibrator

• Calibrated 114 dB• Mapped out locations for areas of concern.• Walked around facility with Quest model 2800 taking samples from

areas of concern. • Mark location on map with decibels recorded. (All numbers in red

show a noise level that is not compliant with novo policy)• Create spread sheet with informational notes about possible reason

for high noise levels.

Equipment & Procedure


Second Floor Building 1Presentation title Date 15

Second floor Building 9


Mechanical Penthouse


Chiller Yard


5 tech


First floor Building 1


First floor Building 9


First floor Building 3Presentation title Date 22

Summary of Results


Areas that Exceed 80 dB Fume Hoods/Biological Cabinets that exceed 50 dB

Chiller Yard M.S.A.T. lab 174 cabinet- 69 dBMechanical Mezzanine M.S.A.T. lab 164 Fume hood- 68.9 dBClean Utilities QC lab 5.105 fume hood- 62 dBInterstitial space 1.2.004 QC lab 5.105 fume hood- 63.7 dBMechanical Penthouse QC lab 5.110 cabinet- 67 dBProcess Waste QC lab 5.110 cabinet- 69.8 dB

Interstitial space 264 Room 1.1.025 fume hood- 72.7 dBRoom 1.1.025 cabinet- 69.8 dBRoom 1.1.032 cabinet- 55.5 dB

• Assess locations identified as > 80dBA to determine if employee hearing protection required

• Assess need to post signs indicating loud noise at >80 dBA locations• Conduct further assessment of unnecessary noise at fume hoods and

biosafety cabinets upon employee complaints of inconvenience• Limit access to area

Corrective Action


Questions?Presentation title Date 25

noise calibration

Documents