Document 10g13dmwrjGbGoLVwXYkx5Z6q
AMERICAN MUTUAL LIABILITY INSURANCE COMPANY .
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REPORT OF INVESTIGATION
Quin-T Corporation Tilton, New Hampshire
By
Leon D. Horowitz
InCduhsietrfi.aIniTdiuysgtireiaml sHrygiene Section
(Laboratory Director)
American Mutual Laboratories Accredited by A.I.H.A.
February 26, 1980
ENGINEERING DEPARTMENT
SC-ELEC-07560
1* LABORATORY REPORT
ASBESTOS TIBER COUNT RESULTS
- : :'
if ? r
The six (6)
samples obtained by your personnel have boon analyzed and
counted in our laboratory* The results ara shown on the attached Air , ' '
Analyzia Tablet*
,
METHOD OF AKALYSIS
Airborne concentrations of asbestos fibers were made by menbrane filter aethod at 400 tines magnlficatlon with phase contrast Illumination as required by the Occupational Safety and Health Standard (OSHA) 1910.93a (Federal Resister Vol* 37 Ho. 110 - Wednesday June 7. 1972).
PERMISSIBLE EXPOSURE TO AIRBORNE C07CEKTRATIONS OF ASBESTOS FIBERS (OSHA Std. 1910.93a)
The eight hour tine weighted average airborne concentrations of asbestos rfibers to which any enployee aay be exposed shall not exceed 2 fibers (longer than S micrometers) per cubic cantiaeter of air* (Effective Septehber 30,1973)
The permissible celling concentrations - 10 fibers per c.c*
HOTS: Proposed OSHA Standard Section 1910.1001-(Federal `Register Vol. 30 May 1977 Thursday, October 9, 1975) recommends a lowering of permissible exposure to an eight hour time weighted average not to exceed 0.5 fibers per c.c, and a Celling Concentration of 5 fibers per c*e,
LIMITATIONS
..
The attached results are bn-the samples'a* received, The results can'be no more accurate or Informative than the accuracy 'and 'care taken In collecting the samples.
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DATE
February.26. I9$0 .
PLANT Ouin-T Coro
LOCATION ____Tilton New Hampshire r~
AIR ANALYSIS TABLE
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Semple No.
Blank
Time .Mint.
* BLank
Location end Event*
`
fibers/cc Concentration
'* * . .
' -.
0.0025 fibers/fie
AIW-1 AIW-2
Ill Amer Insulated Wire Tunbient Air
78
"
"'
* ZSE tape operator
0.013 0.0089
:
AIW-3
74
"
"
" ESE tape area sampl *
0.075 .
* *.* .
SO 3*72
Threshold limit Volue A--Milligram! per Cubic Meter B--Peril per Million
c--m;ii;on Partlctei per Cubic Foot
0--Microj'om* per Cubic Meter
AMERICAN MUTUAL LIABILITY INSURANCE CO.
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Department Location Operator's Name
Sample Type .
f^/UUii. ,,
. Description and Time Log
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Pump No.
03l~~j0&l Flow Rate
Start Time Stop Time .
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Sample T.D. No. .) A~% l/J ^ 3 i
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Operation Description: (Equipment used. Job procedures, techniques, speeds)
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'laterial Site
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Process Speeds Loount of Material s'ormal Operator Work Cycle: rZ^_hrs./day
Actual Operating Tine:
hr<./div
*
^ate the tfol1l1owing: 0j =s NSolnieg,ht 25 == HMiogdherate
1. Ventilation Control 2. Drafts
3. Settled dust on machines
4, Settled dust on floor 5. Settled dust on clothing 6. Airborne Just
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J Traffic
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Defj^rtment
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Location Operator's Name Sample Type
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Description and Time Log
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Start Time / * 2--
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Sample l.D. No.
PrXX- W " 2-r
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Operation Descript ion: (Equipment used, Job procedures. techniques, speeds)
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ffv\ ryWL< it*/ 41 j{ >***/
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Material Size.
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Process Speeds
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rJj>Jp.
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Amount of Material
Normal Operator Nork Cvcle: 53lt2c_firs./dav
Actual Operating Time:
hr<./div `
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' cA/r^.Vty *faH*Ji
^ pr 7 / 7
5rn^ .vi +AP iirmJt. /ttiM
,,Rate .thve rfoliliowing: i0 ^* sNioiuneht
1. Ventilation Control
2. Drafts
3. Settled dust on machines
4. Settled dust on floor 5. Settled dust on clothing
6. Airborne Just
_7 Traffic
25 == HMiogdherate
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0
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0
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Sampled bv: ^71l l/J aj P 0 y
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