種類 |
等級 |
活性鋁 |
Fe |
Si |
Cu |
H2O |
|
優(yōu)等品 |
≥90 |
≤1.0 |
≤0.8 |
≤0.5 |
≤0.1 |
一等品 |
≥85 |
≤1.5 |
≤1.2 |
≤0.5 |
≤0.1 |
|
二等品 |
≥80 |
|||||
合等品 |
≥75 |
|||||
|
優(yōu)等品 |
≥95 |
≤0.8 |
≤0.5 |
≤0.2 |
≤0.2 |
一等品 |
≥90 |
≤1.0 |
≤0.8 |
≤0.2 |
≤0.2 |
|
合等品 |
≥85 |