Heavy duty engines. Measurement of gaseous emissions from raw exhaust gas and of particulate emissions using partial flow dilution systems under transient test conditions
Connecting devices for low voltage circuits for household and similar purposes. Part 2-2. Particular requirements for connecting devices as separate entities with screwless-type clamping units
Acoustics. Determination of sound power levels and sound energy levels of noise sources using sound pressure. Precision methods for anechoic rooms and hemi-anechoic rooms