DIFF Subgroup
C02F 5/02 Softening water by precipitation of the hardness
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 > Softening water by precipitation of the hardness
CPC:
Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents (softening using ion-exchange C02F1/42) > Softening water by precipitation of the hardness
Of 3 combined children, 2 exist in both systems.
1 codes are CPC-only extensions.
1 shared codes have differing titles between IPC and CPC.
IPC defines codes here since 1980.
Child Classifications
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