The Steel Tank Institute/The Steel Plate Fabricators Association (STI/SPFA) have revised two of its standards: SP001 Standard for the Inspection of Aboveground Storage Tanks 6th Edition, and SP031 Standard for the Repair of Shop-Fabricated Aboveground Storage Tanks, 5th Edition.
Highlights of the revised standards include:
- A new Appendix which was added to include inspections of heated thermoplastic liquids storage up to 500oF. This appendix is aimed at inspections of asphalt tanks.
- The maximum specific gravity of the stored liquid was removed from the scope.
- Inspection guidelines are now provided for steel diked tanks and concrete-encased shop-fabricated tanks.
- Suitability guidelines for continued service of double-wall tanks and concrete-encased shop-fabricated tanks are now provided.
- Monthly and annual checklists were revised.
- The safety considerations and welding sections were revised.
The changes to both of the SP001 and SP031 standards are reflected in the STI/SPFA 2018 course list. For more information about the revised standards and/or the 2018 course listings, please visit the association website.