API RP 19G10-2018 Design and Operation of Intermittent Gas-lift Systems (FIRST EDITION) API STD 976-2018 Refractory Installation Quality Control - Inspection And Testing Of Aes_Rcf Fiber L API RP 1115-2018 Design and Operation of Solution-mined Salt Caverns Used for Liquid Hydrocarbon Sto API RP 5EX-2018 Design, Verification, and Application of Solid Expandable Systems (FIRST EDITION) API STD 2015-2018 Requirements for Safe Entry and Cleaning of Petroleum Storage Tanks (EIGHTH EDITIO API STD 6AV1-2018 Validation of Safety and Shutdown Valves for Sandy Service (THIRD EDITION) API STD 20L-2018 Qualification of Polymeric Seal Manufacturers for Use in the Petroleum and Natural API STD 692-2018 Dry Gas Sealing Systems for Axial, Centrifugal, and Rotary Screw Compressors and Ex