CPC Main Group
G01N 33/00 Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
27 direct subcodes
Child Classifications
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- G01N 33/02 Food
- G01N 33/15 Medicinal preparations
- G01N 33/18 Water
- G01N 33/20 Metals
- G01N 33/22 Fuels; Explosives
- G01N 33/24 Earth materials (G01N33/42 takes precedence)
- G01N 33/26 Oils; Viscous liquids; Paints; Inks (G01N33/22 takes precedence)
- G01N 33/34 Paper
- G01N 33/36 Textiles
- G01N 33/38 Concrete; Lime; Mortar; Gypsum; Bricks; Ceramics; Glass