Assertion: acetylene | /r/HasProperty | smelled
Facets:
Source sentences:
text: If acetylene is smelled (an indication of improper shut down procedures in a welding operation), the cylinder is set aside to be cleaned at some later time (to remove the odor from acetylene and thus prevent a potential explosion from an acetylene-oxygen mix within the cylinder).
text: If no acetylene is smelled, then a whip is connected to the cylinder and the "welding" cylinder is filled with USP oxygen.