ISO 7967-11:2014 establishes a vocabulary for fuel systems of reciprocating internal combustion engines. Also, in ISO 7967-11:2014, the terms and the definitions are classified as follows:

? fuel supply system (3.1);

? carburetor (3.2);

? fuel injection system (3.3).

ISO 2710‑1 gives a classification of reciprocating internal combustion engines and denotes the basic terms and definitions of such engines and their characteristics.