Hazard Division 1.2 Tests--instrumentation Results and Interpretation

To date, nearly all efforts in the field of accidental explosion consequence determination have been aimed at the quantification of the effects of a Hazard Division (HD) 1.1 event. Little attention has been paid to the consequences of the ignition of stacks of Hazard Division 1.2 ammunition. In 1989, NATO AC/258 (Group of Experts on the Safety Aspects of Transportation and Storage of Military Ammunition and Explosives) agreed that a program of trials should be carried out to investigate the consequences of an HD 1.2 event. The goal of these trials would be twofold: to gain basic knowledge about HD 1.2 phenomena and to revise the current NATO quantity-distance relationships for HD 1.2 events. As a result of the NATO interest, a joint UK/US experimental program was started in 1990. To date, seven tests have been conducted: three single-pallet tests (30 projectiles/test), two eightpallet tests (240 projectiles/test), one twenty-seven pallet test (864 projectiles), and one threepallet test (96 projectiles loaded with Composition B). This report describes the test program, the instrumentation which was utilized, and summarizes some of the results which have been obtained. INTRODUCTION To date, nearly all international effort in the field of accidental explosion consequence determination has been aimed at the quantification of the effects of a Hazard Division (HD) 1.1, mass detonation, event, in an explosives storage facility. Little attention has been paid to quantifying the consequences of the accidental initiation of HD 1.2 ammunition. This class of ammunition is not expected to explode en masse. Individual rounds or small groups of rounds will explode when sufficiently stimulated (by, for example, fire) without causing others around them to explode. Such explosions will continue spasmodically over a period as further rounds receive sufficient stimulus. A more detailed discussion of the entire program is presented in the paper Trials to Determine the Consequences of the Accidental Ignition of Stacks of HD 1.2 Ammunition M. J. A. Gould, Report Documentation Page Form Approved OMB No. 0704-0188 Public reporting burden for the collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing this burden, to Washington Headquarters Services, Directorate for Information Operations and Reports, 1215 Jefferson Davis Highway, Suite 1204, Arlington VA 22202-4302. Respondents should be aware that notwithstanding any other provision of law, no person shall be subject to a penalty for failing to comply with a collection of information if it does not display a currently valid OMB control number. 1. REPORT DATE AUG 1994 2. REPORT TYPE 3. DATES COVERED 00-00-1994 to 00-00-1994 4. TITLE AND SUBTITLE Hazard Division 1.2 Tests Instrumentation Results and Interpretation 5a. CONTRACT NUMBER