Treacherous \Treacher*ous\, a. [See Treacher.] Like a traitor; involving treachery; violating allegiance or faith pledged; traitorous to the state or sovereign; perfidious in private life; betraying a trust; faithless. [1913 Webster] Loyal father of a treacherous son.
Fuel Safety Tips. 1  If you need to transport fuels such as propane, gasoline or oil, it should only be carried in approved containers certified by agencies such as the Canadian Standards Association or Underwritersâ Laboratories of Canada. 2  Containers should never be filled right to the top.
How to connect 7kg, 12kg and 15kg Butane gas bottles. These cylinders have a 21mm valve and should only be used with 21mm regulators. To connect, just turn the orange safety cap so that the arrow is pointing to the gap in the shroud, then remove the orange cap by pulling the lanyard out, and then upwards.