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 06 Primary cells and primary batteries 85 06 30 Mercuric oxide 85 06 30 00 Mercuric oxide Commodity Code Description 85 06 30 00 000 Mercuric oxide