API STD 20L-2018 Qualification of Polymeric Seal Manufacturers for Use in the Petroleum and Natural API RP 2027-2018 Ignition Hazards and Safe Work Practices for Abrasive Blasting of Atmospheric Stora API STD 6AV1-2018 Validation of Safety and Shutdown Valves for Sandy Service (THIRD EDITION) API STD 2610-2018 Design, Construction, Operation, Maintenance, and Inspection of Terminal and Tank API MPMS 22.4-2018 Manual of Petroleum Measurement Standards, Chapter 22.4 Testing Protocol for Pres API STD 692-2018 Dry Gas Sealing Systems for Axial, Centrifugal, and Rotary Screw Compressors and Ex API STD 622-2018 Type Testing of Process Valve Packing for Fugitive Emissions (THIRD EDITION) API 19C-2018 Measurement of and Specifications for Proppants Used in Hydraulic Fracturing and Gravel