|
Project
|
Best Class
|
First Class
|
|
Appearance
|
White Power
|
|
|
Purity ≥(%)
|
99.8
|
99
|
|
Moisture ≤(%)
|
0.1
|
0.2
|
|
PH value
|
7.5-9.5
|
|
|
Ash ≤(%)
|
0.03
|
0.05
|
|
Specific Gravity
|
1.573
|
|
|
Chroma(Pt-Co) ≤
|
20
|
30
|
|
Melting Point (âÂÂÂÂ)
|
354
|
|
