C2H6+3.5O2→2CO2+3H20
4O+3O=7O
7/2=3.5
CST= 1/(1+3.5/ 21%) = 1/ (1+16.67 )= 0.0566= 5.66%
LEL=0.55*5.66% = 0.031 =3.1%
UEL=3.5*5.66% =0.1981 =19.81%
LOC=3.1% *3.5=0.1085 =10.85%