Document 8OB64v2XnyNv0m8a5EJR3n9Ra
FILE NAME: Abex (ABX) DATE: 1972 Feb DOC#: ABX003 DOCUMENT DESCRIPTION: US Public Health Service Inspection Report
U.S.P.H.S. SURVEY
ABEX CORPORATION American B.rakeblok D ivision
Winchester, V irginia
February 1972
NATIONAL INSTITUTE FOR OCCUPATIONAL SAFETY 5 HEALTH
Division o f Field Studies $ C lin ica l Investigations
March 7, 1972
Plant #15 ___
ABEX CORPORATION American Brakeblok D ivision
Winchester, V irgin ia
U .S .P .H .S . Survey February 7-11, 1972 L eft-R ig h t Paired Samples
SAMPLE #
LOCATION OR JOB
1-Left 1-Right
2-Left ; 2-Right
i
! 3-Left 3-Right
4-Left 4-Right
5-L e ft 5-R ig h t
6- L e ft 6-Right
7-Left 7-R ig h t
8-Left i 8-Right
Wet Mixer Compound Operator Compound Operator Weigher Compound Operator Strip Grinder Surface Grinder Strip Grinder
f COUNTS DONE ON SAMPLE
MEAN * FIBERS >Sv/FIELD
DIFFERENCE 3ETWEEN
PAIRS IN MEAN # FIBERS >5^/FIELD
MEAN CONCENTRATION
>5V FIBERS/ml
4
.43
4
.50
2
.28
2
.43
4
.81
4
.36
2
.95
2
.85
3
1.08
2
1.08
2
1.65
2
1.20
2
.75
3
.70
2
.70
2
.78
.07 15
.15 43
.45 77
10 11
0
0
.45 32
05
7
.08 i i
.78 .87
.43 64
1.54 .69
1.91 1.70
2.52 2.52
.
2.44
1.73
1.20 1.12
1.11 1.22
1
)
American Brakeblok D ivision Winchester, V irginia
February 7-11, 1972 L eft-R ig h t Paired Samples
SMfPLE if
LOCATION OR JOB
9-L e ft 9-Right
S trip Grinder
10-Left 10-Right
Strip Grinder
11-L e ft 11- R ig h t
Strip Grinder
12-Left 12-Right
Multiple D rill
13-Left 13-Right
Multiple D rill
14-Left 14-Right
Multiple D rill
15-L e ft 15-Right
D r ill Press
16-Left 16- R ig h t
Hand D r ill Operator
17-Left 17-Right
D r ill Press
18-Left 18-Right
Branding Machine
19-Left* Hot Press 19- R i g h t *
20-Left* Hot Press 20-Right*"
# COUNTS DONE ON SAMPLE
MEAN if FIBERS >5v/FIELD
2
1.10
4
.61
3
.88
2
.68
2
1.10
2
1.20
2
1.20
2
1.32
2
.95
2 .
.93
2
.48
3
.53
2
.73
2
.50
2
.18
2
.73
2
.58
2
.45
2
.60
2
.75
2
1.73
2
1.95
2
3.75
2
3.03
DIFFERENCE BETWEEN
PAIRS IN MEAN
if FIBERS >5]i/FIELD
A
%
.49 57
.20 26
.10
Q
.12 10
.02
9
.05 10
* 4 .0 37
.55 120
MEAN CONCENTRATION >5y FIBERS/ml
1.71 "94
1.43 1.07
1.77
_
1.92
1.97
~
2.16
1.59 1.54
.80 .90
1.26 .87
.30 1.30
.13 25 .15 ?? .22 X .72 21
1.00 .79
' .78 .97
1.64 1.86
3.73 3.00
2
American 3rakeblok D ivision Winchester, V irginia February 7-11, 1972
L eft-R ig h t Paired Samples .
SAMPLE ft
!
LOCATION ON JOB
21 -Left* Hot Press 21-Right*
22-Left* Preformer 22-Right*
23-Left - Extruder Operator ** 23-Right
fr COUNTS BONE ON SAMPLE
2 2
2 2
2 2
MEAN ft FIBERS >5v/FIELD
2.68 3.13
1.98 1.25
.30 .35
DIFFERENCE BETWEEN
PAIRS IN MEAN
ft FIBERS >5v/FIELD
A
%
.45 16
.73 45
.05 16
MEAN CONCENTRATION >5y FIBERS/ml
2.69 3.17
2.97 1.88
.45 .50
Heavy P a rtic u la te Background Only one o f group th a t is l e f t handed, #23
Have 11 p airs where the l e f t is greater than the rig h t Have 11 p airs where the rig h t is greater than the l e f t Have___1_ p a ir where ex actly the same
23 paired samples to ta l
I f a d iffe re n ce o f .10 fib e r s / fie ld is considered not s ig n ific a n t ,
then have:
12 p a irs not s ig n ific a n t ly d iffe r e n t
6 pairs with the le f t side higher
5 pairs with the righ t side higher
- 3-
i