Before hunting for the PDF, let's clarify the scope. governs the design, manufacturing, testing, and documentation of wellhead and tree equipment used for drilling and production. This includes:
Some key requirements in API Specification 6A, 21st Edition, include: api specification 6a 21st edition pdf link
https://www.api.org/ /media/files/ publicfiles/ standards/online/cop/ api_spec_6a_21st_edition_2019. pdf Before hunting for the PDF, let's clarify the scope
The (Specification for Wellhead and Tree Equipment) was published in November 2018 and became effective on November 1, 2019. This edition introduced major updates, including a complete document reorganization, revised sizing tables, and the mandatory use of API 20E and API 20F for bolting. Official Purchase and Access Before hunting for the PDF