7. If the concentration of ethane were only 1.6% (half the lower limit of flammability) the M-S-A Explosivemeter would read
A. 50%
B. 100%
C. 16%
D. 1.60%
7. If the concentration of ethane were only 1.6% (half the lower limit of flammability) the M-S-A Explosivemeter would read
A. 50%
B. 100%
C. 16%
D. 1.60%