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Anhydrous hydrogen fluoride |
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Item |
Extra best
(enterprise standard) |
Best quality |
First quality |
Qualifier |
Test method |
HF %≥ |
99.98 |
99.95 |
99.9 |
99.7 |
GB7746-1997 |
H2O %≤ |
0.003 |
0.03 |
0.06 |
0.1 |
GB7746-1997 |
H2SiF6 量%≤ |
0.006 |
0.01 |
0.02 |
0.05 |
GB7746-1997 |
SO2 ≤ |
0.001 |
0.007 |
0.015 |
0.03 |
GB7746-1997 |
Fix acid (H2SO4)%≤ |
0.003 |
0.005 |
0.02 |
0.05 |
GB7746-1997 |
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