
- 13 Development (Service)
- 14 Logistics (Service)
- 15 Maintenance (Service)
- 16 Food, beverage, tobacco
- 17 Machine, device (for special applications)
- 18 Equipment f. mining, metallurgical plant, rolling mill a. foundry
- 19 Information, communication and media technology
- 20 Packing material
- 21 Plant equipment, tool
- 22 Construction technology
- 23 Machine element, fixing, mounting
- 24 Office product, facility and technic, papeterie
- 25 General service
- 26 Energy, extraction product, secondary raw material and residue
- 27 Electric engineering, automation, process control engineering
- 28 Vehicle (complete vehicle)
- 29 Home economics, Home technology
- 30 Auxiliary supply, additive, cleaning agent
- 31 Polymer
- 32 Laboratory material, Laboratory technology
- 33 Installation (complete)
- 34 Medical Device
- 35 Semifinished product
- 36 Machine, apparatus
- 37 Industrial piping
- 38 Inorganic Chemical
- 38-01 Oxygen-Hydrogen compound ([O][H])
- 38-02 Carbon-compound, inorganic (C, [O], [H], [S], [halogen])
- 38-03 Sulfur compound (S [C], [O], [H], [halogen])
- 38-04 Other element of group 16
- 38-05 Halogen compound, inorganic (halogen, [group 16], [C], [O], [H])
- 38-05-01 Fluorine, Fluorine compound
- 38-05-02 Chlorine, chlorides of alkali, earth alkali and ammonium
- 38-05-03 Chlorine- oxygen compound and their alkali, earth alkali and ammonium salts
- 38-05-04 Bromine, bromides of alkali, earth alkali and ammonium
- 38-05-05 Bromine oxo acids and their alkali, earth alkali and ammonium salts
- 38-05-06 Iodine, Iodine compound
- 38-05-07 Astatine, astatides of alkali, earth alkali and ammonium
- 38-05-90 Halogen compound, inorganic (halogen, [group 16], [C], [O], [H], other)
- 38-06 Nitrogen compound (N, [halogen], [group 16], [C], [O], [H])
- 38-07 Phosphorus compound (P, [N], [halogen], [group 16], [C], [O], [H])
- 38-08 Other element of group 15 and their compounds
- 38-09 Noble gas compound
- 38-10 Element of group 1 and their compound
- 38-11 Element of group 2 and their compounds
- 38-12 Element of group 13 and their compounds
- 38-13 Silicon compound (inorganic)
- 38-14 Other element of group 14 and their compounds
- 38-15 Element of groups 11 and 12 and their compounds
- 38-16 Scandium, yttrium, lanthanum, lanthanoides and their compounds
- 38-17 Actinium, actinoides and their compounds
- 38-18 Element of groups 4, 5 and 6 and their compounds
- 38-19 Element of groups 7 to 10 and their compounds
- 39 Organic Chemical
- 40 Occupational safety, accident prevention
- 41 Marketing
- 42 In-vitro diagnostic
- 43 Optics
- 44 Automotive engineering, vehicle component
- 45 Human and veterinary drug, pesticide as well as active ingredient
- 46 Clothing and textile
- 47 Body care, personal hygiene
- 48 Sport, playing, leisure
- 49 Public safety and military technology
- 50 Interior furnishing
- 51 Fluid power
- 90 Interim class (unspecified)