Properties of High Temperature Flames. 809 



Table I. 



Test 1. — Arc: Exposed test followed by blank test. 



Electroscope exposed. 



Electroscope shielded. 



Time 



Deflexion. 



Temperature 



Time 



Deflexion. 



Temperature 



(minutes). 





(° co. 



(minutes). 





(° O.). 







18-95 



14-4 







190 



14-8 



15 



18-15 



146 



15 



18-5 



14-6 



30 



17-6 



14-3 



30 



18 05 



14-7 



45 



16-95 



— 



45 



17-55 



14-7 



60 



16-25 



14-7 



60 



17-05 



14-8 



75 



159 



148 



76 



16-65 



1485 



90 



1505 



1475 



90 



161 



14-3 



105 



14-8 



14-8 



105 



15-6 



14-8 



121 



14-15 



14-83 



120 



150 



1483 



135 



139 



14-8 



135 



145 



— 



150 



13-15 



14-85 

 Mean 14*7. 







Mean 1475. 



Test 2. — Arc : Shielded test followed by exposed test. 



Electroscope shielded. 



Electroscope exposed. 







1995 



15-5 







20-75 



15-7 



10 



196 



15-6 



10 



202 



15-45 



20 



191 



1545 



20 



19-85 



15-3 



30 



18-9 



15-5 



30 



19-15 



15-35 



40 



18-5 



15-5 



40 



18-95 



1535 



50 



181 



15-55 



51 



1845 



15-4 



60 



179 



1565 



60 



18-05 



15-57 



70 



17-5 



15-6 



70 



1785 



156 



80 



17-15 



15 45 



80 



17-25 



1555 



90 



16-9 



15-6 



90 



16-95 



15-5 



100 



1665 



15-65 

 Mean 15*55. 







Mean 15*5 



Test 3. — Arc : Two consecutive exposed tests. 







17-2 



15-93 







1605 



161 



10 



16-95 



1603 



10 



159 



16-05 



20 



16-8 



16-2 



20 



15-3 



1607 



30 



16-35 



159 



30 



149 



16-07 



40 



15-95 



15-7 



40 



14-25 



16-1 



50 



15-4 



15-9 



50 



13-95 



16-0 



60 



15-05 



16-05 



60 



1325 



16-0 



70 



1455 



161 



70 



1295 



15-97 



80 



14-1 



16-1 



80 



12-5 



15-95 



90 



1395 



1603 

 Mean 160 







Mean 1605 



