Document 3JZ8w1KVxMR3pROadjw3wL6dO
FILE NAME: DuPont Remington (DRM) DATE: 1973 Dec 10
DOC#: DRM009
DOCUMENT DESCRIPTION: Memo from W.D. Decker to P.E. Cronin RE Sampling and Evaluation of Airborne Asbestos Dust - Bridgeport Plant
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*V ,* v. c RD-69 REV. -58
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REMINGTON ARMS COMPANY^INC. INTER-DEPARTMENTAL CORRESPONDENCE
Remington.
cc: Dr. E.M. Marks R.M. Malcom W.E. Fitzgeralc W.H. Howell G.L. Smith R.H. Gruss G.E. Puckett File
Bridgeport, Connecticut December 10, 1973
TO:
P.E. CRONIN
FROM:
W.D. DECKER
SUBJECT: SAMPLING AND EVALUATION OF AIRBORNE ASBESTOS DUST - BRIDGEPORT PLANT.
During the period September 27, 1973 to October 26, 1973, the writer took 34 personal and environmental samples in areas of the plant where Asbestos is handled either in it's raw form or as a Dry Molded Base Wad.
SUMMARY
1. The ceiling threshold limit value of 10 Fibers/cc was exceeded in the Asbestos Wood Flour mixing room in bldg. 340-4. This condition requires complete protective clothing.
2. The proposed 1976 time-weighted average threshold limit value of 2 Fibers/cc was exceeded for the Asbes tos-Wood Flour mixing operator in bldg. 340-4; by the Process Checker in the Assemble Head and Prime Room - (New Style); and by the Colton Wad Operator.
3. Elimination of the practice of using air hoses to clean equipment and substitution of vacuum cleaning equipment is indicated.
4. More positive ventilation of machines is indicated. Entirely too much dust is created in the processing of D.M.B.W, mixture from start through A.H. & P.
RESULTS OF MONITORING PROGRAM
METHOD OF SAMPLING:
"Monitaire" portable pump utilizing Millipore 37 m.m. mem brane filters contained in cassettes.
METHOD OF ANALYSIS:
Fibers counted using Unitron phase contrast, microscope at 400X magnification.
BRD0006222
'Sample #1 #2 #3 #4
#5 #6 .#7 #8 #9
#10 #11 #12 . #13 #14 #15
#16
#17
,15,16,17) #18
' #19 #20
#21 #22
Operation
Operator
Fibers/cc
Colton Wad Job
"'Russell Summons
6 .0*
Colton Wad Job
A.H. & P (New.Style) .
Asbestos Wood Flour Mixing
'Russell Summons Waste Fischer f t ' ! ' Ray Phaneuf
2.32** 0.35** 10.3*
Conventional Assembly Conventional Assembly
y 7Charles Goll
0.03**
/'Irene Kahramandis S f f T . 0 .15**
Conventional Assembly Conventional Assembly
General Room Sample V Helen Hobocan ' i f 71'
0.3** 0.46**
Colton Wad Job
i/Room Sample North Corner
0 .56**
Conventional Assembly
Michael Wartko (*-
1.03**
Conventional Priming
`-'Benjamin Rodriguez
0.61**
Conventional Priming
-'William Adams
0 .38**
Conventional Priming
l/Guido Giannini
0 .38**
A.H. & P. (New Style) /Alfredo Posta
0.24**
Miscellaneous/Involving Asbestos-Wood Flour Mixing
Ray Phaneuf
3.41
Miscellaneous/Involving Asbestos-Wood Flour Mixing
Ray Phaneuf
3.44
Miscellaneous/Involving Asbestos-Wood Flour Mixing
Ray Phaneuf
2.76
Composite
Ray Phaneuf
2 .72**
Conventional Priming
^Alexander Gazsi
0 .99**
A.H. & P. (New Style) `'George Haydock
0.74**
Process Checker A.H.&P (New Style)
A.H. & P. (New Style) .
''Caroline Paro /
`^Anthony Palmer
2 .10** 1.57**
Conventional Assembly ./Mary Brooks
0 .76**
#23
Conventional Assembly ^Ann Krower
o.4i**
BRD0006223
'4.
r Sartple m #25
#26 #27 #26,#27 #28 #29 #30 #31
#32 #33 .. #34
Operation
- 3-
Operator
Colton Wad Job
t^/'Larry Gingras
Colton Wad Job
/Larry Gingras
Composite'
"''Larry Gingras
Colton Wad Job
^/jack Bonesi
Colton Wad Job
^Jack Bonesi
Composite
`/Jack Bonesi
Conventional Priming
''Miguel Morrero //</
Conventional Priming
l/Willaim Dakun
A.H. & P..(New Style)
Leon Bialy
A.H. & P (New Style) Conventional Priming
y Mary Vogel (Process Checker)
^Clarence Sicolo %
Conventional Assembly (/Helen Tocydlowski
A.H. & P. (New Style) v/^ohn Bob
NOTES: * Ceiling Threshold Limit Value. ** Time Weighted Average Concentration.
Current Ceiling T.L.V. 10 Fibers/cc. Current Time Weighted Average T.L.V. 5 Fibers /cc. Proposed 1976 Time-Weighted Average T.L.V. 2 Fibers/cc.
Fibers/cc 0.92 0.23 O.56** 0.73 O.5I 0.62** I.07** 0 .5 9 * * '1.35** 0.53**
1.01** O.3.3** 0.62**
WDD/gc
W.D. Decker Chemical Engineer
BRD0006224