Section 16 Machinery and mechanical appliances; electrical equipment; parts thereof; sound recorders and reproducers, television image and sound recorders and reproducers and parts and accessories of such articles 85 Electrical machinery and equipment and parts thereof; sound recorders and reproducers, television image and sound recorders and reproducers, and parts and accessories of such articles 85 31 Electric sound or visual signalling apparatus,nes (eg alarms) 85 31 10 Smoke alarms; portable personal alarms (shrill alarms 85 31 10 30 Smoke alarms; portable personal alarms (shrill alarms Commodity Code Description 85 31 10 30 00 Smoke alarms; portable personal alarms (shrill alarms