|
Name of target |
Standard value | |
|
Appearance |
White Powder | |
|
Assay(as Na2H2P2O7), % ≥ |
95.0 | |
|
Water Insoluable, % ≤ |
1.0 | |
|
Arsenic, % ≤ |
0.0003 | |
|
Heavy Metal(As Pb) % ≤ |
0.001 | |
|
Fluorine, % ≤ |
0.005 | |
|
PH(10g/L) |
4.0±0.5 | |
|
Through 80 mesh sieve, % ≥ |
95 | |
|
Unit average net quality, % ≥ |
25.0 | |
|
Remark:
This batch of product measure up to Srandard HG2928-1999 | ||