206 MUNROE-HOWELL-PRODUCTS OF DETONATION OF TNT. 



6657 X .01832 = 121.96, 1 j.^^^^ ^^ ^^^^ ^^^g g^_ 



6657 X. 02483 = 165.29, J ^ ^ ^ 



plosive, in which 6657 = total pressure in gages in mm. of mercury, 



27'? X I ^."^ 



.01832 = factor to reduce to 0° C. and 760 mm. pressure- ^ ^^ 



273 X 20.6 

 .02843 = factor to reduce to 0° C. and 760 mm. pressure ^ . 



287.25 X .158 X 1.2542 = 56.922 grams N in gases, in which 

 287.25 = liters of gas in both gages at 0° C. and 760 mm., 

 1 5.8 = per cent. N in gas, 

 1.2542 = weight of I liter of N at 0° C. and 760 mm. 



N put in gage 56709 grams 



N found in gases 56.922 grams 



Difference +-2I3 grams 



In order to compare directly the products of combustion from 

 the explosive at different pressures, all of the gas analyses were 

 computed free from the nitrogen in the residual air and that given 

 ofif by the electric detonator. These results are given with each 

 test and also in the summary in Table No. 2. 



Details of Tests. 



Test No. 



M — 2354 



P— 1834' 

 Weight of charge 25 grams. 



Temperature of gage before shot 29° C. 



Temperature of gage after shot 29° C. 



Barometer, 728 mm. 



Observed gage pressure i.oi kg. per sq. cm. 



Gas Analyses. 



