| Class | Class Name | 
|---|---|
| 1 | biological fertilizers | 
| 1 | biological preparations for laboratory purposes | 
| 1 | biological preparations for the treatment of effluent | 
| 1 | biological preparations for the treatment of waste water | 
| 1 | biological preparations for use in biotechnology [other than medical] | 
| 1 | biological preparations for use in manufacture | 
| 1 | biological preparations for use in the preservation of agricultural forages | 
| 1 | biological preparations, other than for medical or veterinary purposes | 
| 1 | biological preparations [other than for medical use] | 
| 1 | biological tissue cultures, other than for medical or veterinary purposes | 
| 1 | biostimulants for plants | 
| 1 | birdlime | 
| 1 | bismuth | 
| 1 | bismuth subnitrate for chemical purposes | 
| 1 | bleaching preparations [decolorants] for industrial purposes | 
| 1 | bleaching substances for industrial purposes | 
| 1 | blood charcoal | 
| 1 | blowing agents for use in the manufacture of expanded rubber | 
| 1 | blue vitriol | 
| 1 | blueprint cloth | 
| 1 | blueprint paper | 
| 1 | bone charcoal | 
| 1 | borax | 
| 1 | boric acid for industrial purposes | 
| 1 | brake and clutch cleaners [chemicals] | 
| 1 | brake fluid | 
| 1 | brazing fluxes | 
| 1 | brazing preparations | 
| 1 | bread improvers for industrial use | 
| 1 | brickwork preservatives (except paints and oils) | 
| 1 | brickwork preservatives, except paints and oils | 
| 1 | bromine for chemical purposes | 
| 1 | buffers [chemicals] | 
| 1 | building adhesives | 
| 1 | by-products of the processing of cereals for industrial purposes | 
| 1 | caesium | 
| 1 | calcined soda | 
| 1 | calcium carbide | 
| 1 | calcium carbonate | 
| 1 | calcium carbonate for use in industry | 
| 1 | calcium cyanamide [fertiliser] | 
| 1 | calcium cyanamide [fertilizer] | 
| 1 | calcium nitrate | 
| 1 | calcium salts | 
| 1 | californium | 
| 1 | calomel [mercurous chloride] | 
| 1 | camphor, for industrial purposes | 
| 1 | carbide | 
| 1 | carbolineum for the protection of plants | 
| 1 | carbon |