| Percentage of material passing through a sieve opening | Sieve opening size | ||||
| 100 | 1 1/2 inch square | ||||
| 90 | - | 100 | 1 inch square | ||
| 40 | - | 80 | 3/4 inch square | ||
| 15 | - | 60 | 1/2 inch square | ||
| 0 | - | 30 | 3/8 inch square | ||
| 0 | - | 10 | #4 | ||
| 0 | - | 5 | #8 | ||
| 0 | - | 0.5 | #200 | ||
| Note: | The requirements for filing a variance are located in the Safety and health core rules and chapter 296-900 WAC, Administrative rules. |