containing silica

Introduced: September 1968

Full Title

Glass compositions > containing silica

Of 4 combined children, 3 exist in both systems.

1 codes are CPC-only extensions.

1 shared codes have differing titles between IPC and CPC.

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C03C 3/045 CPC only CPC only
C03C 3/06 with more than 90% silica by weight, e.g. quartz +1 CPC IPC+CPC Available in IPC and CPC
C03C 3/062 with less than 40% silica by weight since 1985 IPC+CPC Available in IPC and CPC
C03C 3/076 with 40% to 90% silica, by weight since 1985 IPC+CPC Available in IPC and CPC