| (GB/T10500-2000) |
|
| Index Item |
Index |
|
| First Quality |
Qualified |
|
| Content of Soldium Sulfide,% |
≥ |
60 |
60 |
|
| Content of Iron(Fe),% |
≤ |
0.003 |
0.0054 |
|
| Content of Water Insoluble,% |
≤ |
0.05 |
0.1 |
|
| Content of Sodium Carbonate,% |
≤ |
2 |
3 |
|
| (Q/FH04-2005) |
|
| Index Item |
Index |
|
| Extraordinary Good |
Best Quality |
First Quality |
Qualified |
|
| Content of Soldium Sulfide,% ≥ |
|
60 |
60 |
60 |
60 |
|
| Content of Iron(Fe),% ≤ |
|
0.001 |
0.002 |
0.003 |
0.005 |
|
| Content of Water Insoluble,% ≤ |
|
0.01 |
0.01 |
0.05 |
0.1 |
|
| Content of Sodium Sulfite,% ≤ |
|
0.3 |
0.4 |
|
|
|
| Content of Sodium Thiosulfate,% ≤ |
|
0.8 |
0.8 |
|
|
|
| Content of Sodium Carbonate,% ≤ |
|
1 |
1.5 |
2 |
3 |
|
| Appearance |
Yellow,flaky,even,no agglomeration Thickness≤2mm |
|
