= : 218° .(mea) Project 21.3 - Short Malf-life Activities - F, Monyer Anotber phase of Project 21,3 was engaged in finding total tritium in the clowl, This was done in the following manner: Oarrier amounts of heavy vater, krypton and renon vere added to the collection bottles prior to the program, The collection system consisted of filters for particulate BEST AVAILABLE COPY -i2< Ct ate: we 4A. ¢