| ≥1 piece |
|
Item
|
Standard value
|
Typical result
|
|
K5P3O10 (dry), %≥
|
95.0
|
96.50
|
|
P2O5 , %≥
|
57.0
|
47.61
|
|
PH(1%water)
|
9.2-11.1
|
9.8
|
|
Heavy metals (Pb), %≤
|
0.0015
|
0.0008
|
|
Fluoride (F), %≤
|
0.001
|
0.0008
|
|
As , %≤
|
0.0003
|
0.0002
|
|
Water insoluble , %≤
|
0.2
|
0.05
|