Index name |
Index
|
|
First grade
|
Qualified product
|
|
Appearance(eye) |
white, light gray powder or granule
|
|
Initial Melting point, ℃≥ |
142.0
|
140.0
|
Loss on heat, % ≤ |
0.40
|
0.50
|
Ash, % ≤ |
0.30
|
0.40
|
Residue on screen(149um), % ≤ |
0.0
|
0.1
|