API specification 6A 17. Edition: The state-of-the-art document for international standardization of wellhead and christmas tree equipment

The primary objective of this paper is to provide a synopsis of the significant revisions that are included in the API 6A 17th Edition. The various revisions have been categorized based on their resultant effects. Also included in this paper is a discussion of the regulatory, standardization and customer acceptance issues that clouded the future of API 6A 17th Edition at the time of its release.