Petroleum and natural gas industries -- Drilling and production equipment -- Specification for wellhead surface safety valves and underwater safety valves for offshore service
Requirements are specified in API Specification 14D (API Spec 14D), ninth edition, June 1 1994, which is adopted as ISO 10433. For the purposes of international standardization, however, modifications shall apply to specific clauses and paragraphs of publication API Spec 14D. These modifications are outlined.
A standard is reviewed every 5 years
Revisions / Corrigenda