A - C
Actuator - An actuator is device used to transfer motion from one object to another. An actuator activates a movement or a process.
ATEX - ATEX is a standard/guideline for explosion protection in the industry
Barrel - A barrel is a volume measurement of crude oil. 1 barrel = 42 gallons (US) or about 35 gallons (imperial) or 159 litres
Biofuels - The term biofuel is a generic one used to describe liquid or gas fuels that are not derived from petroleum-based fossils fuels or contain a proportion of non-fossil fuel. Biofuels fall into two main categories- conventional biofuels produced from plants, crops such as sugar beet, rape seed oil or re-processed vegetable oils - and second generation biofuels from gasified biomass. At present, most biofuels fall into the conventional category.
Bitumen - Bitumen is a black, sticky substance, related to asphalt. This is stored in tanks and is used in sealants, mineral felts and damp-proof courses
Bund - A bund is an enclosure designed to contain fluids should they escape from the tank or vessel inside the bund
Cathodic protection - Cathodic protection is a method of protecting steel tanks and piping from corrosion. This is accomplished either by a chemical method or an electrical method
Crude oil - Crude oil is an unrefined mixture of naturally occurring hydrocarbons. Crude oils contain sulphur, nitrogen, oxygen, as well as traces of metals such as vanadium or nickel. Crudes like North Sea Brent, which are low in sulphur, are often referred to as sweet and their properties are more highly valued.
D - F
Derv - The term derv is derived from the expression diesel engine road vehicle.
Distillate - A distillate is any petroleum product produced by boiling crude oil and collecting the vapours produced as a condensate in a separate vessel. Most refinery products can be classed as distillates; for example petrol (light distillate), gas oil (middle) or fuel oil (heavy)
Flash point - A flash point is the minimum temperature at which a liquid within a container gives off vapour in sufficient concentration to form an ignitable mixture with air near the surface of the liquid
Flowmeter - A flowmeter is a device used to monitor and measure the flow of a substance (typically fluid or gas).
Fuel oil - Fuel oil is a heavy residue, black in colour, used to generate power or heat by burning in furnaces.
G - I
Gasoil - Gasoil is a middle distillate used in diesel engines or as heating fuel.
Hazardous Area - A hazardous area is one which has a potentially explosive atmosphere
HVO (hydrotreated vegetable oil) – A pure hydrocarbon produced from vegetable oils and animal fats by catalytic hydrotreating triglycerides.
Hydrocarbons - Hydrocarbons are organic compounds of hydrogen and carbon whose densities and boiling and freezing points increase as their molecular weights increase.
Internal floating roof - An internal floating roof tank has both a permanent fixed roof and a floating desk inside
Interstitial space - An interstitial space is the space between the primary storage tank or piping wall and the impermeable barrier within a secondary containment system.
J - L
Line-leak detector - A line leak detector is a device used in pressure piping systems to detect a leak in the piping.
LPG - Liquified petroleum gas (LPG) is a light hydrocarbon which is gaseous at normal room temperature and atmospheric pressure. Easily liquefied under pressure for storage and transportation, it rapidly returns to gas on release of pressure.
M - O
Monitoring wells - Groundwater monitoring involves the use of permanent monitoring wells placed close to the UST. The wells are checked at least monthly for the presence of product that has leaked from the UST and is floating on the groundwater surface
MTBE - Metyl tertiary butyl ether (MTBE) is highly refined high octane light distillate used in the blending of petrol.
Naphtha - Naphtha is a volatile, flammable light distillate used to make petrol and as a solvent
Overfill prevention -Overfill protection systems are an audible, visible or mechanical means of warning and/or preventing against overfilling a tank
P - R
Petroleum - Petrol, or gasoline, is a volatile, flammable liquid hydrocarbon refined from crude oil and used to fuel spark ignition internal combustion engines.
S - U
SCADA - SCADA, or Supervisory Control and Data Acquisition systems, are typically used to perform data collection and control at the supervisory level.
Secondary containment -Secondary containment is an impermeable barrier that prevents leaks from the primary storage tank system from reaching outside the containment area.
Sludge - Sludge is the petroleum or allied petroleum product residue or material that accumulates at the bottom of a storage tank
Sumps or containment sump - A sump is a liquid-tight compartment enclosing the piping connections at the top of an underground storage tank providing containment of product leaks. If equipped with a sensor an alarm will sound when a leak is detected.
V - X
Valve - A valve is a device that controls the flow of liquid or gas, typically through pipework
Volatile organic compounds (VOCs) - VOCs are light, organic hydrocarbons which escape as vapour from fuel tanks or other sources, and during the filling of tanks.
