Section 272-9-014 - Storage Within Types 1, 2, 3 and 4 Facilities014.01 Explosive materials within a storage facility shall not be placed directly against interior walls. Any devices constructed or placed within a storage facility shall not interfere with ventilation.014.02 Containers of explosive materials shall be stored by being laid flat with the top side up. Corresponding classes, grades, and brands shall be stored together within a storage facility in such a manner that class, grade, and brand marks are easily visible upon inspection. Stocks of explosive materials shall be stored so as to be easily counted and checked.014.03 Except with respect to fiberboard containers, explosive materials shall not be unpacked or repacked inside a storage facility or within 50 feet thereof, and shall not be unpacked or repacked in close proximity to other explosive materials. Containers of explosive materials shall be securely closed while being stored.014.04 Tools used for opening or closing containers of explosive materials shall be of non-sparking materials, except that metal slitters may be used for opening fiberboard containers. A wood wedge and a fiber, rubber, or wooden mallet shall be used for opening or closing wood containers of explosive materials. Metal tools other than non-sparking transfer conveyors shall not be stored in any storage facility containing high explosives.272 Neb. Admin. Code, ch. 9, § 014