CPC Subgroup
C02F 1/62 Heavy metal compounds
Full Title
Treatment of water, waste water, or sewage (C02F3/00 - C02F9/00 take precedence) > by removing specified dissolved compounds (using ion-exchange C02F1/42; softening water C02F5/00) > Heavy metal compounds
1 direct subcode
Child Classifications
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- C02F 1/64 of iron or manganese