121.5 and 243.0 MHz emergency position indicating radio beacons (EPIRBs) including personal EPIRBs.
406 MHz satellite distress beacons.
A.C. supplied electronic ballasts for tubular fluorescent lamps : performance requirements.
Abrasive grains and crudes : chemical analysis of silicon carbide.
Accessories for electric cables : test requirements.
Acoustics : hearing protectors.
Acoustics : measurement of sound insulation in buildings and of building elements.
Acoustics : measurement of the reverberation time in rooms.
Acoustics : measurements of sound insulation in buildings and of building elements : laboratory measurement of room-to-room airborne sound insulation of a suspended ceiling with a plenum above it.
Acoustics : rating of sound insulation in buildings and of building elements.
Acoustics : recommended design sound levels and reverberation times for building interiors.
Acrylonitrile butadiene styrene (ABS) compounds, pipes and fittings for pressure applications.
Air admittance valves (AAVs) for use in sanitary plumbing and drainage systems.
Air-handling and water systems of buildings : microbial control.