| 2 | general purpose industrial valves | 2 | hydrostatic test/loop around test | Specification for Pipeline Valves API Spec 6D-2014(R2015) 9 |
| Specification for Pipeline Valves API Spec 6D-2014(R2015) 9 |
| Petroleum and natural gas industries — Pipeline transportation systems — Subsea pipeline valves ISO 14723-2009 11 |
| Petroleum and natural gas industries — Pipeline transportation systems — Subsea pipeline valves ISO 14723-2009 11 |
| Specification for Subsea Pipeline Valves API Spec 6DSS-2017 10 |
| Specification for Subsea Pipeline Valves API Spec 6DSS-2017 10 |
| Petroleum and natural gas industries — Drilling and production equipment — Wellhead and christmas tree equipment GB/T 22513-2013,ISO 10423-2009,API Spec 6A-2018 7.4.9 |
| Petroleum and natural gas industries — Drilling and production equipment — Wellhead and christmas tree equipment GB/T 22513-2013,ISO 10423-2009,API Spec 6A-2018 7.4.9 |
| Petroleum and natural gas industries — Design and operation of subsea production systems — Part 4: Subsea wellhead and tree equipment GB/T 21412-4-2013,ISO 13628-4-2010/Cor 1-2011,API Spec 17D-2011 5,6.3 |
| Petroleum and natural gas industries — Design and operation of subsea production systems — Part 4: Subsea wellhead and tree equipment GB/T 21412-4-2013,ISO 13628-4-2010/Cor 1-2011,API Spec 17D-2011 5,6.3 |
| Industrial valve - Pressure test GB/T 26480-2011 |
| Industrial valve - Pressure test GB/T 26480-2011 |
| Valve Inspection and Testing GB/T 13927-2008 |
| Valve Inspection and Testing GB/T 13927-2008 |
| Valve Inspection and Testing API 598-2016 5,6 |
| Valve Inspection and Testing API 598-2016 5,6 |
| 3 | Design Validation Procedure | Petroleum and natural gas industries — Drilling and production equipment — Wellhead and christmas tree equipment GB/T 22513-2013 Annex E |
| Petroleum and natural gas industries — Drilling and production equipment — Wellhead and christmas tree equipment GB/T 22513-2013 Annex E |
| Petroleum and natural gas industries — Drilling and production equipment — Wellhead and christmas tree equipment ISO 10423-2009 Annex F |
| Petroleum and natural gas industries — Drilling and production equipment — Wellhead and christmas tree equipment ISO 10423-2009 Annex F |
