DIFFERENT TYPE GLOVEBOX FILTERS USED FOR $sup 238$Pu WORK AT MOUND LABORATORY.

A review is presented of the different type glove box filters that have been used with plutonium-238 glove boxes at Mound Laboratory.Three filter installation types are discussed: (1) box-type filter mounted inside a small housing on top of glove box, (2) cylindrical filter with 2-in.diameter threaded pipe at one end designed to screw into exhaust line inside glove box, and (3) dual cylindrical filters with molded rubber gaskets designed to fit inside a stainless steel or fiber glass tube below glove box.Each type filter installation is discussed in terms of filtration adequacy, sources of leaks, ease of filter change, contamination control problems during filter change, and interference with glove box operations.