| ≥1 piece |
|
Items
|
Unit
|
Technical Index
|
|
Appearance
|
-
|
White Crystal Powder
|
|
Assay
|
%
|
99.5-101.0
|
|
Water
|
%
|
≤0.25
|
|
Ash
|
%
|
≤0.10
|
|
Melting Point
|
a??
|
287-302
|
|
Color
|
APHA
|
≤15
|
|
Sulphate
|
PPM
|
≤0.01
|
|
As
|
PPM
|
≤3
|
|
Heavy Metal( AS PB)
|
PPM
|
≤10
|