| ≥1 piece |
|
Title of Index
|
Unit
|
Index
|
|
Appearance
|
-
|
White crystal powder
|
|
Purity As C4H4O4 ≥
|
%
|
99.5
|
|
Maleic acid ≥
|
%
|
0.1
|
|
Melting Point
|
a??
|
286~302
|
|
Water ≤
|
%
|
0.3
|
|
Sulphate ≤
|
%
|
0.01
|
|
Heavy Metal(as Pb) ≤
|
ppm
|
10
|
|
As ≤
|
ppm
|
3
|
|
Ash ≤
|
%
|
0.05
|