Handbook-Safety Practices

5 2. Check the atmosphere in the work area and ventilation system if workers develop unusual symptoms or complaints. Measurements may be needed to determine whether adequate ventilation is being provided. A qualified person, such as an industrial hygienist, should survey the operations and environment. Follow their recommendations for improving the ventilation of the work area. 3. Do not weld, cut, or heat dirty plate or plate contaminated with unknown material. The fumes and gases which are formed could be hazardous to your health. Remove all paint and galvanized coatings before beginning. All fumes and gases should be considered as potentially hazardous. Additional information on various fumes and gases that can harm your health is located in the Appendix of this booklet. Material Safety Data Sheets also provide helpful safety and health information. More complete information on health protection and ventilation recommendations for general welding and cutting can be found in the American National Standard Z49.1, ”Safety in Welding and Cutting”. FORCED DRAFT VENTILATION BOOTHS LOCAL EXHAUST HOODS AIR SUPPLIED MASK TYPICAL METHODS FOR VENTILATION AND RESPIRATORY PROTECTION