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WebThe Bureau of Mines studied blast-produced ground vibration from surface mining to assess its damage and annoyance potential, and to determine safe levels and appropriate measurement techniques. Direct measurements were made of ground vibration produced structure responses and damage in 76 homes for 219 production blasts. Webthe Interior's Bureau of Mines and Bureau of Land Management, the U.S. Department of Agriculture's Forest Service, the Interstate Mining Compact Commission, the American Mining Congress, the Mineral Policy Center, ... 2.2.3 British Columbia Research Initial Test (BC) 17 2.2.4 Alkaline Production Potential : Sulfur Ratio (APP:S) 17 WebUnited States. Bureau of Mines: Bureau of Mines instrumented impact tester : preliminary studies / ([Washington, D.C.] : U.S. Dept. of Interior, Bureau of Mines, [1972]), also by Karl R. Becker, Richard William Watson, C. M. Mason, and Pittsburgh Mining and Safety Research Center (page images at HathiTrust) United States. the docter pure