|
GRADE |
EXCELLENT |
FIRST |
QUALIFIED |
|
PurityNaNO2,% ≥ |
99.0 |
98.5 |
98.0 |
|
NaNO3,% ≤ |
0.80 |
1.00 |
1.90 |
|
Chlorides,% ≤ |
0.10 |
0.17 |
--- |
|
Moisture,% ≤ |
1.8 |
2.0 |
2.5 |
|
water insoluble,% ≤ |
0.05 |
0.06 |
0.10 |
