Turkmenistan standards PDF
Nondestructive Examination Services for Equipment Used in the Petroleum and Natural Gas Industry. Original standard API St 20D-2013 add 1-2016 in PDF full version. Additional info + preview on request
Document status: Active
Qualification of Nondestructive Examination Services for Equipment used in the Petroleu. Original standard API St 20D-2019 in PDF full version. Additional info + preview on request
Document status: Replaced by St API St 20D-2025
Qualification of Nondestructive Examination Services for Equipment used in the Petroleum and Natural Gas Industry. Original standard API St 20D-2025 in PDF full version. Additional info + preview on request
Document status: Active
Welding Services for Equipment used in the Petroleum and Natural Gas Industry. Original standard API St 20G-2020 in PDF full version. Additional info + preview on request
Document status: Active
Welding Services for Equipment used in the Petroleum and Natural Gas Industry. Original standard API St 20G-2020 (2025) in PDF full version. Additional info + preview on request
Document status: Active
Heat Treatment Services—Batch Type for Equipment Used in the Petroleum and Natural Gas Industry. Original standard API St 20H-2015 in PDF full version. Additional info + preview on request
Document status: Replaced by St API St 20H-2020 (2025)