MUNROE-HOWELL— PRODUCTS OF DETONATION OF TNT. 207 



Calculations. 



N in explosive, 25 X -iSH • .- 4-535 grams 



N in residual air 896 grams 



N in No. 8 electric detonator 158 grams 



Total N put in gage 5-589 grams 



N found in gases : Obs. pres. i.oi kg. per sq. cm 743 mm. 



Barometer 728 mm. 



Abs. pres. in gage i,47i rnm. 



1471 X .01820 = 26.77 liters gas from 25 grams. 

 26.77 X .16 X 1.2542 = 5.372 grams N in gas. 



N put in gage 5-589 grams 



N found in gas 5-372 grams 



Difference 



— .217 grams 



Test No. 



M — 2354 



P-I835* 

 Weight of charge, 50 grams. 



Temperature of gage before shot 22° C. 



Temperature of gage after shot 23° C. 



Barometer, 734 mm. 



Observed gage pressure 2.88 kg. per sq. cm. 



Gas Analyses. 



Calculations. 



N in explosive, 50 X -1814 9-070 grams 



N in residual air 9^7 grams 



N in No. 8 electric detonator 158 grams 



Total N put in gage 10.145 grams 



N found in gases : Obs. pres. 2.88 kg. per sq. cm 2,120 mm. 



Barometer 734 mm. 



Abs. pres. in gage 2.854 rnm. 



