In the past, the 17H drum has been used as a Type A container. Currently, the UN (1A2) designation is being used in place of the 17H. Has the UN series actually been tested and certified, or is everyone "assuming" the two are equivalent? Thanks. =================================================== James Graham/UNM RSO v: 505-277-2753 University of New Mexico f: 505-277-9006 Albuquerque, NM email: jimg@unm.edu