| Volatile compounds | Volatile compounds 优等品 | | ≤0.4 % |
| Number of impurity particles | Number of impurity particles 合等品 | | ≤80 个 |
| Number of impurity particles | Number of impurity particles 一等品 | | ≤30 个 |
| Sieve residue | Sieve residue 一等品，0.25mm筛孔 | | ≤2.0 % |
| Sieve residue | Sieve residue 优等品，0.25mm筛孔 | | ≤1.0 % |
| Sieve residue | Sieve residue 一等品，0.063mm筛孔 | | ≥90 % |
| Sieve residue | Sieve residue 一等品，0.063mm筛孔 | | ≥95 % |
| Sieve residue | Sieve residue 优等品，0.063mm筛孔 | | ≥98 % |
| Volatile compounds | Volatile compounds 合等品 | | ≤0.5 % |
| Volatile compounds | Volatile compounds 一等品 | | ≤0.4 % |
| Residual vinyl chloride content | Residual vinyl chloride content 合等品 | | ≤30 ppm |
| Number of impurity particles | Number of impurity particles 优等品 | | ≤16 个 |
| Residual vinyl chloride content | Residual vinyl chloride content 一等品 | | ≤10 ppm |
| Residual vinyl chloride content | Residual vinyl chloride content 优等品 | | ≤5 ppm |
| Whiteness | Whiteness 合等品，160℃，10min后 | | ≥70 % |
| Whiteness | Whiteness 一等品，160℃，10min后 | | ≥75 % |
| Whiteness | Whiteness 优等品，160℃，10min后 | | ≥80 % |
| fisheye | fisheye 合等品 | | ≤90 颗/400cm |
| fisheye | fisheye 一等品 | | ≤40 颗/400cm |
| fisheye | fisheye 优等品 | | ≤20 颗/400cm |
| Sieve residue | Sieve residue 合等品，0.25mm筛孔 | | ≤2.0 % |
So sánh