ISO 9091-2:1992

Refrigerated light hydrocarbon fluids — Calibration of spherical tanks in ships — Part 2: Triangulation measurement

Also sets out the calculation procedures for compiling the calibration tables to be used for the measurement of cargo quantities. Annexes B to F give calibration uncertainty and examples of main gauge table at – 160 °Celsius, trim correction table, list correction table, and correction table for tank shell expansion or contraction.