Copyright Goodheart-Willcox Co., Inc. 11 Objectives After completing this chapter, you will be able to: ❑ Discuss the history of GTAW welding. ❑ Recall the different types of light produced by welding and the dangers associated with each type. ❑ Identify the different types of burns. ❑ Identify electrical hazards in the weld shop. ❑ Identify the respiratory hazards associated with welding. ❑ Recall the proper work clothing and personal protective equipment (PPE) to be worn while welding. ❑ Recognize fire hazards and use fire extinguishers appropriately. ❑ Explain the importance of safety data sheets (SDS). ❑ Determine ventilation requirements for welding different materials. ❑ Recall the dangers associated with high-pressure gas cylinders and regulators. ❑ Identify proper storage and set up procedures for high-pressure gas cylinders. Key Terms cracking Dewar flask filter lens first-degree burn flash burn flowmeter forced ventilation fusion gas tungsten arc welding (GTAW) infrared (IR) light natural ventilation nonconsumable Occupational Safety and Health Administration (OSHA) safety data sheet (SDS) second-degree burn third-degree burn tungsten ultraviolet (UV) light visible light weld zone Chapter 1 Gas Tungsten Arc Welding History and Safety