Hong Kong Regulations

DANGEROUS GOODS (GENERAL) REGULATIONS - REGULATION 41

Contents of package

No outer or inner package containing explosives shall contain more than one
kind of explosive or contain any other article or substance: Provided that
there may be packed in the same outer package-

   (a)  an inner package containing a propellant and an inner package
        containing a different kind of propellant or gunpowder; or

   (b)  an inner package containing an explosive in category 1, class 6,
        division 1 and any article or substance which is not of an inflammable
        or explosive nature or liable to cause fire or explosion.