Acceptance criteria for Visual Inspection (Refer: UIG-97, Page – 345 of of ASME BPVC Section VIII Div 1, 2017 Edition.) (a) The surface shall be free of any visible laminations, spalling, or cracks. Cracks in tubes shall not be repaired and shall be considered cause for rejection. (b) For tubes, scratches shall not exceed 1/32 in. (0.8 mm) in depth. For all other material, scratch depth shall not exceed 1/8….
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