A bulletin for the arc welding operator on both mandatory safety practices and those based on shop experience. INTRODUCTION Arc welding is a safe occupation when sufficient measures are taken to protect the welder from potential hazards. When these measures are overlooked or ignored, however, welders can encounter such dangers as electric shock, overexposure to fumes and gases, arc radiation, and fire and explosion; which may result in serious, or even fatal injuries. This bulletin is written with the arc welding operator in mind, containing both mandatory safety practices and...