Abstract
We conducted hydraulic sequential tests of new domestic standard ”KHK S 0128” for existing VH3 and VH4 tanks. No problem was found in carrying out these tests. No unexpected phenomena occurred in the VH4 tank. However, in the liner of the VH3 tank leaked. The temperature and pressure control regulations of the procedure are not detailed in the accelerated stress test, one of the sequential tests. The control procedure affects the results, so, it is necessary to investigate the influence of the temperature and pressure control procedure.
