Hydrocarbons means oil, gas, casinghead gas, drip gasoline, natural gasoline, condensate, distillate, liquid hydrocarbons, gaseous hydrocarbons and all products refined or separated therefrom.
Total hydrocarbons (THC) means the sum of all volatile compounds measurable by a flame ionization detector (FID).
Oil means petroleum in any form including crude oil, fuel oil, sludge, oil refuse and refined products (other than petrochemicals which are subject to the provisions of Annex II of the present Convention) and, without limiting the generality of the foregoing, includes the substances listed in Appendix I to this Annex.
Hydrocarbon means a compound consisting of hydrogen and carbon, which, when naturally occurring, may also contain other elements such as sulphur;
Gas means any mixture of hydrocarbons and noncombustible gases in a gaseous state consisting primarily of methane.