ASME Section II Part C, SFA-5.01 provides various standardized guidelines for procuring welding consumables, when used properly they can enable clear communication between purchasers and suppliers.

Selection of the Lot Class (Lot Size), and Testing Schedule (Tests performed on the Lot Class) detailed in SFA-5.01 is dependent on your specific application, quality program, and customer requirements. If testing is required on each heat or batch of filler metal it must be specified by the purchaser and communicated to the supplier.