LNG cabin capacity acceptable degree determining method

The invention discloses an LNG cabin capacity acceptable degree determining method, and belongs to the ship building technology field. A specific stitch overlapping device is used to overlap stitches on eight corners of two transverse bulkheads of a cabin, and eight measuring nodes are determined, and are provided with reflecting sheets in an attached manner. An electronic tacheometer is used to measure the height values and the half width values of the nodes, and the mean values of the heights and the mean values of the widths of the bulkheads are calculated, and are respectively compared with the theoretical values of the heights and the widths of the bulkheads, and then whether the cabin capacity of the LNG cabin is qualified is determined. The LNG cabin capacity acceptable degree determining method is simple and fast, and is easy to grasp, and therefore errors of a conventional method adopting a tape to measure the sizes of the bulkheads are prevented, and the accuracy of determining the LNG cabin capacit