APPENDIX B
DATA BASED ON BETA MEASUREMENTS
Average Beta Initial Contamination Per Panel
soe
to
INITIAL CONTAMINATION
(Corrected to H + 2k hr)
ue
t Pavement
t
ace
Roo
Control
a
ntro
see
ntr
3H
Roo
ated Roof
trip
670
Control
ntrol
f
ot
°
0
43150
bestos
:
~_
y
.
Ne ee
i
wt
Maen + + “
seems oto nn pete. tee
eeeeere neepian eF
TABLE Bi
ood Siding
vy
eet Metal _
ck
oncrete
Block
inder Block
me
Effects
# Two identical panels were exposed.
#% Polyvinyl Alcohol
CONFIDENTIAL — RESTRICTED DATA