MIL-B-16305B, MILITARY SPECIFICATION: BRICK, REFRACTORY, INSULATING (08 APR 1964)

MIL-B-16305B, MILITARY SPECIFICATION: BRICK, REFRACTORY, INSULATING (08 APR 1964)., This specification covers refractory insulating brick for industrial furnace requirements and in general where they may be in direct contact with combustion gases, such as forge and stress relieving furnaces.