BS EN 60903:2003

Heat - A term used to define thermal energy

Oil - A hydrophobic liquid with high carbon and hydrogen content. Has many variations including; cooking oils, petrochemical oils, essential oils.

Quality - An object that has quality is superior in function and finish than a less quality object.

Safety - prevents damage being caused.

Fire - the release of energy through heat and light.

Electrical - Something that requires electricity to work.

Dimensions - The shapes and angles of something or a situation.

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