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BS 7550-1 1992 Edition, January 31, 1992
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Calibration of Spherical Tanks for Refrigerated Light-Hydrocarbon Fluids in Ships Part 1: Method of Stereo-Photogrammetry
Additional Comments: SAME AS ISO 9091-1
Page Count:18
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Internal dimensions of spherical tanks in liquefied-gas carriers are determined by taking overlapping stereo photos under isothermal conditions. Coordinates are computed. Additional trim, list and tank shell expansion corrections may be made.