Current nationalValve testing and examination ofStandard test medium, test medium temperature, test pressure, test the shortest duration, the requirements of various countries, their allowable leakage volume varied are the GB/T13927-2008.JB/T9092-1999.ISO5208-2008.API598 - 2004.EN1226-1: 2003.MSS SP61 - 2003.API16A idt ISO10423: 2003.API16D idt ISO14313: 2007.API600 - 2009.ISO010434: 1998.ASME B16.104 idt FCI70-2: 2006 10 standard The shell test (see Table 1-9 the basics of the valve) on the seal test (Table 1-10) High-pressure seal test (Table 1-11) low-pressure seal test (Table 1-12) controls the valve seat leakage rate ( Table 1-13)