DIFF Subgroup Additional Only
C01B 2203/1047 Group VIII metal catalysts
Full Title
Integrated processes for the production of hydrogen or synthesis gas > Catalysts for performing the hydrogen forming reactions > Composition of the catalyst > Group VIII metal catalysts
Of 2 combined children, 0 exist in both systems.
2 codes are CPC-only extensions.
Note: 2 CPC extensions are marked as secondary classification only.