Document qab8D23K8ObQnDqaL99QrKLaj
FILE NAME Packings and Gaskets PAG
DATE 1975 DOC PAG058
DOCUMENT DESCRIPTION Dept of Navy - Unpublished Report of Inspection
12-/112-12-75212--12-75712-12-755/ 8107 Gasket stampistampning g
12-12-75
e@
DEPARTMENT OF THE NAVY
NAVAL REGIONAL MEDICAL CENTER
BZWISTON WASHINGTON WASHINGTON 214
-
AT
oe en acne n arene e ae
CODE 300
& ShopShop 56
NRMC BRIM 6760/56 DEC 12 1375
LRL
From To
Subj
Commanding Officer Noval Regional Medical Center Bremetion WA 98314
Commander Puget Sound Noval
Bremerton WA
Pipefitter Shipyard Superintendent Superintendent Pipefitter
Airborne asbestos levels during gasket manufacture
Ref
a Kamo from Code 385 PSNS to Code 430 HRMC BREM of 5 Sep 1975
b NAVSHIPYDPUGET INST 6260.11 Part B Chapter 1
:
1. Reference a requested air sampling to determine the airborne asbestos levels during asbestos gasket manufacture in Shop 36 Building 107
2. Air samples were collected on 16 November during machine stapping and
on 2 December during hand stamping of 1/16 inch Carlock gasket material
The air concentrations were 5 and 3 asbestos fibers per cubic centimeter of sir during machine and hand
5 micron and longer stamping respectively
The allowable 8 hour exposure limit is currently 5 fibers and will be
lowared to 7 fibers on 1 July 1976 reference b
3. It is recommended action be taken to reduce the airborne abertos
lovels The preferred means is by substitution of asbestos ratriz In the Interiw pasket makers must be considered as asbestos Workers
Madical examination and process controls must be in accordance with
reference b These requirements also apply to personnel using arbestos is manufacturing pipe hangers
RBeckett ROGER
Roca By
direction
PLAINTIFF'S
EXHIBIT
101
all
5
CONTRAST :
COLLECTION AND COUNTING AIRBORNE ASBESTOS FIBERS
ot
"
-r
PIUSE
MICROSCOPY METHOD
DATA AIRBORNE ASBESTOS FIBER CONCENTRATION
DATE -11-16-75 -11-16-75 -11-16-75 -11-16-75 -11-16-75
SAMPLE 191
;
4.7 4.7 4.7 4.7
fiberi
cc
fiberi
SECTSOER-CTOR- LOCATION
SAMPLE
GASKET
AIR SAMPLER PLOW RATE liters min
56
TIME ON 1343
OFF 1400
15pm
*
NET TIME
17. Dinutes
TOTAL AIR VOLUME
17 liters
BLANK COUNT AVERACE
"
AVERAGE COUNT
< fiber
.47 FibersFibers L Field
.
>
COLLECTED BY
LL
i bl bail
COUNTED BY
J
0} 7%
3
10
-
55
Po)
Q
u
f
Ci.
2000
2000
2000
2000
2
_!
va)
Z
we
eae
S
Z
r]
o
t
2
f
1
AZ
f.
(4
8
wt.
s
fo)
LL
TF
4
0
0
0
2
}
2
Z
TYPE ofMATOMATONANL MAATONLAL
'
Farlock Farlock
EQUIP
:
A Protective EQUIEPQUIP USED
2
nove
2 Ce
2
Ya)
oO -
Q
filar100 47 is)
L2
fields
fill
ee
L
v4
A
e
9
2
foi
25.
L
/
2
oO e
yy)
O.
op
VA
o)
/
fill
*
47
CALCULATIONS : 13 1616
10
&
ATBORNE ASBESTOS CONCENTRATION
,
.
.47 855 ) .47
4.7
/
Coo.
.
( : On
me
ge Fiber Count Filter Area Area Sample Volume 1000
> On Sox 17 ) 1000
.
wee
2
oe
.
TA
COLLECTION AND COUNTING COUNTING AIRBORNE ASBESTOS
PHASE CONTRAST MICROSCOPY METHOD
.
SHEET
.
;
;
AIRBORNE ASBESTOS FIXER CONCENTRATION
FIBER
3
fibers fibers
fibers cccc
DATE
12-2-75 12-2-75 12-2-75
SAMPLE 0 204188 204188
SAMPLE LOCATION GetSection Shop 5566
a-
AIR SAMPLER PLOW RATE TIME ON 1401
TOTAL AIR VOLUME
liters 1.8 1.8Shop
OFF 1416
27
NET TIME
liters
COUNT AVERAGE
AVERAGE COUNTY .48
COLLECTED BY
Q
5
2
10
25
Jard
/
if
[4]
f o
2
2
Lt.
Sd
2
wa
e
'
/: o
filter fibersfield 9007793590077935 COUNTED
own
t
WA
fe)
2
la)
|
0
f
0
8
o)
8
2
8 o
ge ge
0
Ww)
2
6
oO.
Z
L
L
/
e
1
2
2
2
___
eo)
ppppl
a
0
ppppl
0
-O
ppppl
2
- f.
ppppl
'
'
ppppl
.
00
2
0
S
o
&
oC:
0
L.
2
2
.
25
JL
0
2
fe)
a2}
_O
/
td
2
0
f
2
o
2
'
_-
15 minutes
Hanshaw Hanshaw
Fore,, an
thick
90077935Softstry
.
. 7
.
_
fielt
fielt
Fethers 4848
1/100
1/100
filers
full
48 filers full
.
CALCULATIONS : 11 16 q 12 :
TRBORNE ASERSTOS CONCENTRATION
oe rage Piber Count Filter Area 14 Semple Volume 2000
.
.: .
855
WYSY 27 1900
=
~~
= 3 fibers fibers ~ ~