Jis Test Powder (Class 4,9 Talc)

Reference standard:JIS Z 8901

＊Material used：Talc

Particle density：2.7～2.9g/cm3

Chemical composition

Chemical composition	% ( mass )
SiO₂	60～63
Fe₂O₃	0～3
AI₂O₃	0～3
CaO	value
MgO	30～34
Ignition Loss	3～７

＊Particle size distribution

Oversize(mass basis)%

Particle size µm	Class 4	Class 9
2	–	79±5
4	–	55±5
5	69±5	-
8	–	23±5
16	–	6±3
20	12±5
30	–
40	3±3
70	1 max.