work at HASL has involved the improvement of the physical design and the comparative testing
for collection efficiency.
ras ———
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STEM-49 MM ID- 25MM OD
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STEM-25MMID 44" 0D
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Fig. 1— Ion-exchange fallout collector.
2
DESCRIPTION OF APPARATUS
A schematic diagram of the ion-exchange fallout collector is shown in Fig. 1. This unit
consists of a funnel, ion-exchange column, and leveling device —all constructed from polyethylene. The funnel is welded to a threaded cap that may be attached to the top of the ionexchange column. The bottom of the column is also threaded for a tapered cap with attached
leveling tube. The funnel and tapered caps may be replaced with standard bottle caps for shipment. The collector was fabricated for HASL by Bel-Art Products, West New York, N. J.
3956