Zzzy criticality code justification, technical medical designation and grade, material will be in accordance with navicp mech; activity hx quality control, manufacturing and testing specifications. reference number differentiating characteristics

A carbonaceous product characterized by its high absorption capacity for gases, vapors and colloidal solids and therefore extensively used in gas masks for recovery of solvent vapors or the protection against toxic gases and for the removal of color, taste, odor and other impurities from gaseous and liquid media. It is produced by the destructive distillation of vegetable matter such as wood, peat, lignite, bones, rice hulls, nut shells, and the like, and subjected to high temperatures with steam and\or carbon dioxide to bring about a highly porous structure.