
API SPEC 12D:2025
Current
The latest, up-to-date edition.

Specification for Field-welded Tanks for Storage of Production Liquids
English
05-04-2025
This specification covers material, design, fabrication, and testing requirements for vertical, cylindrical, aboveground, closed-top, welded steel storage tanks in various standard sizes and capacities for internal pressures of approximately atmospheric, not to exceed those listed in Column 2 of Table 1a or Table 1b.
DocumentType |
Standard
|
Pages |
31
|
PublisherName |
American Petroleum Institute
|
Status |
Current
|
Supersedes |
Access your standards online with a subscription
-
Simple online access to standards, technical information and regulations.
-
Critical updates of standards and customisable alerts and notifications.
-
Multi-user online standards collection: secure, flexible and cost effective.
Logging out.