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PCE
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DIFF Subgroup
C02F 5/08

Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents

Introduced: January 1980

Full Title

Full titles differ between systems:

IPC:

Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents > Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents

CPC:

Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents (softening using ion-exchange C02F1/42) > Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents

CPC subdivides this area 3x more granularly than IPC with 2 additional codes.

2 codes are CPC-only extensions.

IPC defines codes here since 1980.

Child Classifications

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  • C02F 5/083 CPC only CPC only
  • C02F 5/086 CPC only CPC only