BS EN ISO 8311-2013 液化气体燃料非石油基冷冻烃.船上膜式舱和独立棱柱舱校准.手工内部电光距离射程法
Refrigerated hydrocarbon and non-petroleum based liquefied gaseous fuels. Calibration of membrane tanks and independent prismatic tanks in ships. Manual and internal electro-optical distance-ranging methods