| Class | Class Name |
|---|---|
| 1 | lime acetate |
| 1 | lime carbonate |
| 1 | lime chloride |
| 1 | limestone hardening substances |
| 1 | liquid epoxies (unprocessed) |
| 1 | liquid fertilizers |
| 1 | liquid fertilizers for plants used in aquariums |
| 1 | liquid for hydraulic purposes |
| 1 | liquid plastics |
| 1 | liquid polymers for use in sealing and caulking compositions |
| 1 | liquids for hydraulic circuits |
| 1 | liquids for removing sulfates from accumulators |
| 1 | liquids for removing sulfates from batteries |
| 1 | liquified gas mixtures for industrial use |
| 1 | liquified gases, other than for medical use |
| 1 | lithia [lithium oxide] |
| 1 | lithium |
| 1 | lithographic printing chemicals |
| 1 | litmus paper |
| 1 | loam |
| 1 | lutetium [cassiopium] |
| 1 | magnesia for rock climbing |
| 1 | magnesite |
| 1 | magnesium carbonate |
| 1 | magnesium chloride |
| 1 | magnetic fluid for industrial purposes |
| 1 | malt albumen |
| 1 | manganate |
| 1 | manganese dioxide |
| 1 | mangrove bark for industrial purposes |
| 1 | manures for use in agriculture and horticulture |
| 1 | manures (natural and artificial) |
| 1 | masonry adhesives |
| 1 | masonry preservatives, except paints and oils |
| 1 | mastic for leather |
| 1 | mastic for tires |
| 1 | mastic for tyres |
| 1 | meat tenderizers for industrial purposes |
| 1 | medical X-ray films [unexposed] |
| 1 | melamine resins |
| 1 | mercuric oxide |
| 1 | mercury |
| 1 | mercury salts |
| 1 | metal annealing preparations |
| 1 | metal hardening preparations |
| 1 | metal preservatives (chemicals) |
| 1 | metal tempering preparations |
| 1 | metal-filled epoxies |
| 1 | metallic oxides |
| 1 | metalloids |
