This British Standard specifies requirements for eight classes of petroleum fuels for engines and boilers used in agricultural, domestic and industrial applications.
NOTE Annexes A, B and C provide information on fuel types and applications, storage and handling, and properties of fuels. Additional information on storage and handling is given in BS 6380.
This British Standard does not preclude lawful use of one class of fuel in an application designed for use with a fuel of another class. However, it is strongly recommended that only class C1 burner fuel is used in flueless domestic appliances, and it is advised that tests or consultation with the equipment manufacturer is carried out if fuel is to be used for other than the purpose for which it is classified in this British Standard.