HT25 - SAFETY 27 1. Know the work operations where exposure to crystalline silica may occur. Be aware of health effects of crystallline silica and that smoking adds to the damage. 3. Be aware of and use available engineering controls such as water sprays, local exhaust ventilation, and enclosed cabs with positive pressure air conditioning. 5. If possible, change into disposable or washable work clothes at jobsite; shower and change into clean clothing before leaving jobsite. 6. Do not eat, drink, use tobacco products, or apply cosmetics in areas where there is dust containing crystalline silica.
Wash hands and face before eating, drinking, smoking, or applying cosmetics outside exposure area. You may need to use different methods to safely avoid other underground hazards. Talk with those responsible for hazards to determine which precautions should be taken or if job should be attempted. Follow these guidelines when trenching, sawing or drilling through material that might produce dust containing crystalline silica (quartz) dust. 2. Follow OSHA (or other) guidelines for exposure to airborne crystalline silica. Participate in air monitoring or training programs offered by employer. 4.
Where respirators are required, wear one approved for protection against crystalline silica-containing dust. Do not alter respirator in any way. Workers using tight-fitting respirators cannot have beards/mustaches which interfere with respirator’s seal to the face. 7. Store food, drink, and personal belongings away from work area. Crystalline Silica (Quartz) Dust Other Jobsite Precautions p JOBSITE CLASSIFICATION