Concrete Coring
Table 1 - SPECIFIED EXPOSURE CONTROL METHODS WHEN WORKING WITH MATERIALS CONTAINING CRYSTALLINE SILICA
| Required Respiratory Protection and Minimum Assigned Protection Factor (AFP) | |||
|---|---|---|---|
| Equipment/Task | Engineering and Work Practice Control Methods | ≤ 4 hours/shift | > 4 hours/shift |
| Rig-mounted coresaws or drills |
|
None | None |