API SPEC 5L-2018 Line Pipe (FORTY-SIXTH EDITION; ERTA 1_ MAY 2018; Effective November 1, 2018) API SPEC 6A-2018 Specification for Wellhead and Tree Equipment (TWENTY-FIRST EDITION; API Monogram p API TR 5C3-2018 Calculating Performance Properties of Pipe Used as Casing or Tubing (SEVENTH EDITION API TR 980-2018 Monolithic Refractories_ Installation and Dryout (FIRST EDITION) API STD 6FA-2018 Standard for Fire Test for Valves (FOURTH EDITION; ERTA 1_ JULY 2018; ERTA 2_ AUGUS API SPEC 19OH-2018 Openhole Isolation Equipment (First Edition) API STD 6AV1-2018 Validation of Safety and Shutdown Valves for Sandy Service (THIRD EDITION) API RP 578-2018 Guidelines for a Material Verification Program (MVP) for New and Existing Assets (Th