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What is the American Petroleum Association standard?
The American Petroleum Association standards are provided in Table 1-1.
Table 1-1 American Petroleum Institute Standards (API)
| Standard code name | The Standard name |
| API 510—2006 | Pressure vessel inspection procedures: maintenance, testing, identification, repair, and replacement |
| API 520.1—2008 | Dimensions, selection and installation of refinery pressure relief units-Part 1: Size and selection |
| API 520.2—2003(R2011) | Dimensions, selection and installation of refinery pressure relief units-Part 2: Installation |
| API 521—2007 | Guidelines for pressure release and decompression systems |
| API 526—2009 | Steel flange connection pressure relief valve |
| API 526—2009 | Steel flange connection pressure relief valve |
| API 527—1991(R2007) | The seat seal of the pressure relief valve |
| API553—1998(R2007) | Oil refining control valve |
| API 574—2009 | Inspection of pipes, valves and fittings |
| API576—2009 | Inspection of the pressure release equipment |
| API 589—1998 | To evaluate the resistance test of stem packing |
| API 591—2008 | User acceptance procedure for oil refining valves |
| API 593—1981 | Ductile iron flange stopcock |
| API 594—2010 | Double, lug clip and double flanged check valves |
| API 595—1979(R1984) | Cast iron flange valve |
| API597—1981 | Steel flange and butt welded shrink gate valve |
| API 598—2009 | Inspection and test of the valves |
| AP1599—2007 | Metal stopcock for flange ends, threaded ends and welded ends |
| API600—2009 | Steel gate valves bolted with valve caps for the oil and gas industry |
| API 601—1988 | Metal gasket for convex piping and flanges (clad and wound) |
| API 602—2009 | Steel gate valves, stop valves and check valves with nominal sizes less than and equal to DN100 in the oil and gas industry |
| API603—2007 | Flange end, butt welding end, corrosion resistant plug valve cap valve |
| API 604—1981 | Flange connection with ductile iron gate valve |
| API605—1988 | Large-diameter carbon steel flange (Class75~900, NPS 26 ~ 60; |
| API 606—1989 | Compact steel gate valve extension valve body |
| API607—2010 | Fire resistance test for 90° rotary soft seal seat valve |
| API 608—2008 | Flange, thread, and butt weld metal ball valves |
| API 609—2009 | Double flange connection, lug and pair clip butterfly valve |
| API 621—2010 | Readjustment of metal gate valves, stop valves and check valves |
| API622—2011 | Type test of leakage-proof structure of oil refining valve |
| API934—2010 | Material and manufacturing requirements for high-14 Cr and 3 Cr for hydrogen |
| API 941—2008 | Hydrogen steel for operation under high temperature and high pressure in petroleum refineries and petrochemical plants |
| API 1104—2005(R2010) | Welding of the pipes and their associated equipment |
| API 6A—2010 | Specification for wellhead equipment and oil tree equipment |
| API 6AV1—1996(R2008) | Verification test of wellhead surface safety valve and underwater safety valve for offshore operations |
| API14A—2005 | Equipment specification for downhole safety valves for oil and gas industry |
| API 5B—2008 | Specification for processing, measuring and inspection of casing, oil and pipe threads (No |
| API 6B—1961 | Welded neck flange size |
| API 14B—2005 | It is difficult to set the downhole safety limit for oil and gas industry |
| API5CT—2011 | Casing and oil bing are Chinese |
| API 6D—2008 | Petroleum and gas industry |
| API 6D- -2011a (Supplementary version) | Petroleum and natural gas industrial pipeline valve gauge sex network |
| API 6DR—2006 | Pipeline valve repair and rehao |
| API 6DSS—2009 | Undersea pipeline valve |
| API 6FA—1999(R2006) | Fire resistance test verification range |
| API 6FC—2009 | Fire resistance test for the valve with the automatic return seat |
| API 6FD—1995(R2008) | Check valve fire resistance test |
| API14H—2007 | Installation, maintenance and repair of sea surface safety valves and underwater safety valves |
| API5L—2007 | Pipeline specification |
| API Q1—2007 | Petroleum, petrochemical and natural gas industry quality outline specification |
| API 11V1—1995(R2008) | Air lift valve, orifice plate, return valve and partition valve |
| API 11V7—1999(R2008) | Repair, test, and installation of gas lifting valves |
| API 14B—2005 | It is difficult to set the downhole safety limit for oil and gas industry |
| API5CT—2011 | Casing and oil bing are Chinese |
| API 6D—2008 | Petroleum and gas industry |
| API 6D- -2011a (Supplementary version) | Petroleum and natural gas industrial pipeline valve gauge sex network |
| API 6DR—2006 | Pipeline valve repair and rehao |
| API 6DSS—2009 | Undersea pipeline valve |
| API 6FA—1999(R2006) | Fire resistance test verification range |
| API 6FC—2009 | Fire resistance test for the valve with the automatic return seat |
| API 6FD—1995(R2008) | Check valve fire resistance test |
| API14H—2007 | Installation, maintenance and repair of sea surface safety valves and underwater safety valves |
| API5L—2007 | Pipeline specification |
| API Q1—2007 | Petroleum, petrochemical and natural gas industry quality outline specification |
| API 11V1—1995(R2008) | Air lift valve, orifice plate, return valve and partition valve |
| API 11V7—1999(R2008) | Repair, test, and installation of gas lifting valves |
