S9074-AR-GIB-010/278
processes are permitted under MIL-STD-271. the shooting sketches will necessarily depend not only on the coverage requirements but the equipment and procedures of the particular radiographic facility. 12.6.3 Approvals l2.6.3.1 Engineering drawings. Casting drawings marked for RT coverage as required by 12.6.1 shall be forwarded to the acqutsition activity for acceptance. Copy of transmittal letter shall be forwarded to the DCASMA. 12.7 Weldability test & When required by the applicable cast material specification. weldability tests shall be performed to demonstrate that a particular heat of metal is of a composition that is readily weldable. 12.8 Sample castings. Except for castings covered in sections 14. 15 and 16. prior to production of a number of similar castings for which foundry methjods or techniques have not been established. one or more sample castings shall be produced and subjected to NDT sampling agreed to by the designer and foundry. The results of this NDT shall be reviewed by both designer and foundry prior to production of the remaining castings. Significant changes to casting procedures, thereafter. shall be subject to a similar sample casting review for the area affected by the change.
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