| ≥1 piece |
|
No
|
Specification
|
Food grade
|
|
1
|
Total phosphate, as P 2 O 5 %≥
|
68.0
|
|
2
|
Inactive phosphate,as P 2 O 5 %≤
|
7.5
|
|
3
|
Iron, as Fe, %≤
|
0.05
|
|
4
|
pH of 1% water solution
|
5.8-6.5
|
|
5
|
Solubility
|
Qualified
|
|
6
|
Heavy metal, as Pb, %≤
|
0.001
|
|
7
|
Arsenic, as As, %≤
|
0.0003
|
|
8
|
Fluoride, as F, %≤
|
0.003
|
|
9
|
Water insoluble, %≤
|
0.06
|