?????: +86-599-6655932
?????: +86-599-6654866
??????: +86-599-6655536
????
??? ??? ???????
|
????：GB/T1278-1994 |
||
???? |
?? |
|
|
??? |
??? |
|
|
??? ????????（NH4HF4）％ ≥ |
98.0 |
97.0 |
????（????? ??）％ ≤ |
0.01 |
0.05 |
|
???（C1）％ ≤ |
0.001 |
0.005 |
|
???(SO4? ??％ ≤ |
0.005 |
0.01 |
|
???????（SiF6? ??）％ ≤ |
0.2 |
0.5 |
|
?（Fe） ％ ≤ |
0.001 |
0.005 |
|
???(Pb? ??) ％ ≤ |
0.002 |
0.005 |