Wa,
Ce
(zuNT)
Project 2.8 -— Shipboard Countermeasures Methods Studies - R. H. Heiskell
OBJECTIVE
To determine the relative effectiveness of various proposed ship
and personnel protection and reclamation methods,
DESCRIPTICN AND EXPERIMENTAL PROCEDURE
These studies consisted of 8 problems to be carried out on the
YAG-39 and YAG-40 and at the Rad Safe center on Parry.
These 8 pro-
blems involved the study of the effectiveness of various shipboard
protective methods, decontamination methods, hazard assessment methods,
personnel protection and decontaminetion methods, and basic ccontaminability-—decontaminability.
RESULTS AND CONCLUSIONS
The experimental hot water sensitive paint (RRPC) used in these
tests was not satisfactory from a durability and weatherability standpoint, however it was successful from the standpoint of removability
and decontaminability.
Removal rates varied from 10 square feet per
minute using a 1250 gph hot liquid jet unit to approximately 20 square
feet per minute using a 6000 gph unit.
Prior firehosing removed 87
percent of the contaminant and the stripping of the RRPC removed approximately 85 percent of this residual, for an overall removal of 98 percent.
Stripping of the RRPC without firehosing removed 95 percent of the
contaminant.
The decontamination effectiveness of the mechanical brush was found
to be inferior to manual brushing.
The manuel scrubbing demanded in this
test was very vigorous and after a matter of minutes the men tired.
Contaminated small diameter wire ropes contribute very little to
COP
T ook
ep tA
pone
og
- 53 -
“1
a“
.