Welding and allied processes produce fumes and gases. The amount or rate generated by a particular process and material depends upon the conditions of use. The laboratory sampling procedure described herein is designed to evaluate the effects of variations in materials, processes, and operating conditions on fume generation rate. Fume generation rates can be useful in prescribing adequate ventilation, making process selections, influencing process variables, and calculating air filtering requirements. In order to provide a safe working environment, it may be necessary to compare the fume generation rate and identify the constituents present in the fumes of various processes.
