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PCE
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DIFF Subgroup
C04B 18/24

Vegetable refuse, e.g. rice husks, maize-ear refuse; Cellulosic materials, e.g. paper

Introduced: January 1985

Full Title

Full titles differ between systems:

IPC:

Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone > Waste materials; Refuse > organic > Vegetable refuse, e.g. rice husks, maize-ear refuse; Cellulosic materials, e.g. paper

CPC:

Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone (use of waste materials for the manufacture of cement C04B7/24); Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone > Waste materials; Refuse > organic (C04B18/10 takes precedence) > Vegetable refuse, e.g. rice husks, maize-ear refuse; Cellulosic materials, e.g. paper

CPC subdivides this area 3x more granularly than IPC with 4 additional codes.

4 codes are CPC-only extensions.

IPC defines codes here since 1985.

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