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PCE
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DIFF Subgroup
C25D 21/16

Regeneration of process solutions

Introduced: July 1974

Full Title

Processes for servicing or operating cells for electrolytic coating > Regeneration of process solutions

IPC and CPC are identically structured here. All 3 subcodes exist in both systems.

2 shared codes have differing titles between IPC and CPC.

IPC defines codes here since 1974.

Child Classifications

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  • C25D 21/18 of electrolytes (C25D21/22 takes precedence) since 1974 IPC+CPC Available in IPC and CPC
  • C25D 21/20 of rinse-solutions (C25D21/22 takes precedence) since 1974 IPC+CPC Available in IPC and CPC
  • C25D 21/22 by ion-exchange since 1974 IPC+CPC Available in IPC and CPC