Figure 10. --Effect of 

 (NH k ) 2 HPOn on the 

 rate of weight loss 

 or equivalent energy 

 release rate in pine 

 needle fuel. 



250 h 



£ 200 



200 



150 



100 



50 



300 f 

 A 



6000 



- 5000 



- 4000 



- 3000 



- 2000 ? 



1000 



Grams of chemical per square foot 



▲ (NH 4 ) ; SO, 



- 6000 



5000 



4000 



3000 £ 



2000 ° 



1000 



12 



Grams of chemical per square foot 



Figure 11. --Effect of (NH^) 2 S0^ on the rate of weight loss or equivalent energy release 



rate in pine needle fuel. 



13 



