MIL-P-223C, MILITARY SPECIFICATION: POWDER, BLACK (05 FEB 1993) [MIL-P-00223C USED IN LIEU OF MIL-P-223B]., This specification is approved for use by the US ArmyArmaments, Munitions and Chemical Command, based uponcurrently available technical information but it has notbeen approved for promulgation as a coordinated revisionof MIL-P-223B. It is subject to modification. However,pending its promulgation as a coordinated militaryspecification, it may be used in acquisition.