.~ Total hydrocarbon, flammability, combustibility (e.g., air-fuel mixture, etc.)
DEFINITION
Classification: 436/143
Total hydrocarbon, flammability, combustibility (e.g., air-fuel mixture, etc.):
(under subclass 139) Subject matter in which (a) the total hydrocarbon content of a sample is determined without regard to the identity of the hydrocarbon or (b) the flammability or combustibility of a mixture is determined, or (c) a combustible gas test.
(1) Note. A test broadly claimed as for combustible content should be originally classified in subclasses 147+ and desirably cross-referenced here if a hydrocarbon is disclosed.