|
Index item |
Qualified grade |
Excellent grade |
|
formic acid , %≥ |
85 |
90 |
|
acetic acid,% |
0.6 |
0.4 |
|
Chroma (as platinum and cobalt) ,%≤ |
10 |
10 |
|
Dilution experiment (acid+water=1+3) |
clear |
clear |
|
Chloride (as CL),%≤ |
0.005 |
0.003 |
|
Sulfate (as SO4),% ≤ |
0.002 |
0.001 |
|
Iron (as Fe ),%≤ |
0.0005 |
0.0001 |
