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API Std 20J

Qualification of Distributors of Metallic Materials for Use in the Petroleum and Natural Gas Industries, First Edition
standard by American Petroleum Institute, 05/01/2017

API RP 939-C

Guidelines for Avoiding Sulfidation (Sulfidic) Corrosion Failures in Oil Refineries, First Edition
standard by American Petroleum Institute, 05/01/2009

API Std 527

Seat Tightness of Pressure Relief Valves, Fourth Edition
standard by American Petroleum Institute, 11/01/2014

API Publ 4782

Petroleum Refining Industry Contribution to Nationwide Surface Water Nutrient Loadings, First Edition
standard by American Petroleum Institute, 08/01/2016

API Spec 16F

Specification for Marine Drilling Riser Equipment, Second Edition, Includes Errata 1 (2019)
standard by American Petroleum Institute, 11/01/2017

API RP 5UE Addendum 1

Addenndum 1 to Recommended Practice for Ultrasonic Evaluation of Pipe Imperfections, Second Edition
Amendment by American Petroleum Institute, 04/01/2009