{HEAD ~ The first occurrence} of a measured weight decrease greater than the reference rate signifies that {TAIL ~ the boiling point} of the liquid has been reached 
{ HEAD ~ The first occurrence } of a measured weight decrease greater than the reference rate signifies that { TAIL ~ the boiling point } of the liquid has been reached
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH