This document specifies requirements and gives recommendations for the performance, dimensional and functional interchangeability, design, materials, testing, inspection, welding, marking, handling, storing, shipment, and purchasing of wellhead and tree equipment for use in the petroleum and natural gas industries.
This document does not apply to field use or field testing.
This document does not apply to repair of wellhead and tree equipment except for weld repair in conjunction with manufacturing.
This document does not apply to tools used for installation and service (e.g. running tools, test tools, wash tools, wear bushings, and lubricators).
This document supplements API Spec 6A, 21st edition (2018), the requirements of which are applicable with the exceptions specified in this document.
ISA 75.01.01 Industrial-Process Control Valves - Part 2-1: Flow capacity - Sizing equations for fluid flow under installed conditions
ISA 75.02.01 Control Valve Capacity Test Procedures
ISO 13628-4:2010 Petroleum and natural gas industries - Design and operation of subsea production systems - Part 4: Subsea wellhead and tree equipment
ISO 10423:2022 history
2022ISO 10423:2022 Petroleum and natural gas industries — Drilling and production equipment — Wellhead and tree equipment
2009ISO 10423:2009 Petroleum and natural gas industries - Drilling and production equipment - Wellhead and christmas tree equipment
2003ISO 10423:2003 Petroleum and natural gas industries - Drilling and production equipment - Wellhead and christmas tree equipment
2001ISO 10423:2001 Petroleum and natural gas industries - Drilling and production equipment - Wellhead and christmas tree equipment
1994ISO 10423:1994 Petroleum and natural gas industries - Drilling and production equipment - Specification for valves, wellhead and christmas tree equipment