27.020 Internal combustion engines

Rubber hoses and tubing for fuel circuits for internal combustion engines Specification

Reciprocating internal combustion engines Measurement method for air cleaners Sound power level of combustion air inlet noise and insertion loss using sound pressure

Reciprocating internal combustion engines — Measurement method for air cleaners — Sound power level of combustion air inlet noise and insertion loss using sound pressure

Internal combustion engines Engine weight (mass) declaration

Performance test method for diesel engine soot-removal devices in lubricating oils Initial filtration efficiency

Vehicles, boats, and internal combustion engines - Radio disturbance characteristics - Limits and methods of measurement for the protection of off-board receivers

Vehicles, boats, and internal combustion engines - Radio disturbance characteristics - Limits and methods of measurement for the protection of off-board receivers (CISPR 12:2007/A1:2009)

Reciprocating internal combustion engine driven alternating current generating sets