397.     BUECHNER, -----.  [BRYANT, W. M. D.]  Oxidizability of Cobalt Catalyst.  FIAT Reel K29, 1938, frames 7,095-7,108; PB 70,218; TOM Reel 296.

                   Operating instruction for the determination of trivalent Co is worked out as a result of tests on determination of the content of trivalent Co in Co catalysts.  1 drawing, 2 tables, 8 graphs.