This standard applies to two types (Two related standards are listed in par. 9.2.) of diesel fuel (CAUTION: Fuel supplied according to this standard in warmer months may not be appropriate for year-round diesel operation.), SPECIAL and SPECIAL-LS (low sulphur) for use in high- and medium-speed diesel engines in underground mines.

Type SPECIAL fuel is intended for use where quantities of ventilating air are restricted and/or high operating temperatures exist.

Type SPECIAL-LS (a maximum sulphur of 0.05% by mass of the SPECIAL type) is intended for use as specified in par. 1.1.1 and for use in high-speed diesel engines designed to meet the stringent diesel exhaust emissions regulations (as promulgated in the U.S.A. by the EPA) for heavy-duty on-highway vehicles and engines.

The testing and evaluation of a product against this standard may require the use of materials and/or equipment that could be hazardous. This document does not purport to address all the safety aspects associated with its use. Anyone using this standard has the responsibility to consult the appropriate authorities and to establish appropriate health and safety practices in conjunction with any applicable regulatory requirements prior to its use.