ASME B16.48 pdf download Line Blanks 1 SCOPE This Standard covers pressure–temperature ratings, materials, dimensions, tolerances, marking, and testing for operating line blanks in sizes NPS 1 ∕ 2 through NPS 24 for installation between ASME B16.5 flanges in the 150, 300, 600, 900, 1500, and 2500 pressure classes. 2 GENERAL 2.1 Definitions 2.1.1 Figure-8 Blank. A figure-8 blank (also...