SCHEDULE 1QUALIFYING MATERIAL: SPECIFIED MATERIALS AND CONDITIONS
6Interpretation
The material in Group 3 comprises only—
a
moulding sands, including used foundry sand;
b
clays, including moulding clays and clay absorbents (including Fuller’s earth and bentonite);
c
mineral absorbents;
d
man-made mineral fibres, including glass fibres;
e
silica;
f
mica;
g
mineral abrasives.