394 



MR. J. E. PETAVEL ON THE PRESSURE OF EXPLOSIONS. 



TABLE VIII. (Kecord No. F 65.) 



Cylindrical explosion vessel; charge uniformly distributed; gravimetric density 0-1004; diameter of cord 



0-175 inch (4-44 millims.). ; temperature 18 C. 



Maximum pressure 1041 atmospheres (6-83 tons per square inch); time required to reach 

 the maximum pressure 0-028 second. 



TABLE IX. (Record No. F 66.) 



Cylindrical explosion vessel; charge uniformly distributed; gravimetric density 0-0753; diameter of cord 



0-035 inch (0'89 millim.) ; temperature 19 '0' C. 



Maximum pressure 793 atmospheres (5-20 tons per square inch); time required to reach 

 the maximum pressure 007 second. 



