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PCE
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DIFF Subgroup
C25B 13/05

based on inorganic materials

Introduced: January 2021

Full Title

Diaphragms; Spacing elements > characterised by the material > based on inorganic materials

IPC and CPC are identically structured here. All 2 subcodes exist in both systems.

IPC defines codes here since 1974.

Child Classifications

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  • C25B 13/06 based on asbestos since 1974 IPC+CPC Available in IPC and CPC
  • C25B 13/07 based on ceramics since 2021 IPC+CPC Available in IPC and CPC