ANSI/ANS-8.5-1986;W1996 (W=Withdrawn): Use of Borosilicate-Glass Raschig Rings as a Neutron Absorber in Solutions of Fissile Material

This standard applies to the use of borosilicate-glass raschig rings as a neutron absorber for primary and for secondary criticality control in packed vessels containing solutions of ²³⁵U, ²³⁹Pu, or ²³³U.  The chemical and physical environment, properties of the rings and packed vessels, maintenance inspection procedures, and criticality operating limits are specified.