BS ISO 15590-4. Petroleum and natural gas industries. Bends, fittings and flanges for pipeline transportation systems. Part 4. Factory cold bends— 39 стр.
Standard Guide to Obtainable ASTM Equivalent Penetrameter Sensitivity for Radiography of Steel Plates <fraction><num>1</num><den>4 </den></fraction> to 2 in. (6 to 51 mm) Thick with X-Rays and 1 to 6 in. (25 to 152 mm) Thick with <brk/>Cobalt-60— 5 стр.