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PCE
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DIFF Subgroup
C23C 22/33

containing also phosphates

Introduced: January 1985

Full Title

Full titles differ between systems:

IPC:

Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals > using aqueous solutions > using aqueous acidic solutions with pH < 6 > containing hexavalent chromium compounds > containing also phosphates

CPC:

Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals > using aqueous solutions > using aqueous acidic solutions with pH less than 6 > containing hexavalent chromium compounds > containing also phosphates

No child classifications to compare. This is a leaf node in both IPC and CPC.