TIMELINE OF FIRST EDITIONS OF API MECHANICAL INTEGRITY STANDARDS & RECOMMENDED PRACTICES
1950s
September 1955 RP 520 - Sizing, Selection, and Installation of Pressure-Relieving Devices in Refineries January 1956 API 620 - Design and Construction of Large, Welded, Low-Pressure Storage Tanks July 1958 API 510 - Pressure Vessel Inspection Code October 1958 RP 530 - Calculation of Heater Tube Thickness in Petroleum Refineries December 1961 Std. 650 - Welded Tanks for Oil Storage January 1964 Std. 660 - Shell-and-Tube Heat Exchangers August 1968 Std. 661 - Petroleum, Pet- rochemical, and Natural Gas Industries Air-Cooled Heat Exchangers July 1970 RP 941 - Steels for Hydrogen Ser- vice at Elevated Temperatures and Pressures in Petroleum Refineries and Petrochemical Plants January 1986 Std. 560 - Fired Heaters for General Refinery Services January 1990 RP 574 - Inspection of Piping System Components August 1990 RP 945 - Avoiding Cracking in Amine Units January 1991 Std. 653 - Tank Inspection, Repair, Alteration, and Reconstruction April 1991 RP 651 - Cathodic Protection of Aboveground Petroleum Storage Tanks April 1991 RP 652 - Linings of Aboveground Petroleum Storage Tank Bottoms October 1991 RP 573 - Inspection of Fired Boilers and Heaters
1960s
1970s
1980s
1990s
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