The Steel Tank Institute publishes the 6th Edition of SP001 Standard for the Inspection of Aboveground Storage Tanks and the 5th Edition of SP031 Standard for the Repair of Shop-Fabricated Aboveground Storage Tanks

Highlights of the revised standards:

  • A new Appendix includes inspections of heated thermoplastic liquids storage up to 500° F. 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 are revised.
  • The “safety considerations” and “welding” sections are revised.

How to purchase SP001 6th Edition and SP031 5th Edition:

To order, go to and click Publications and then STI/SPFA Store. The price for SP001 6th Edition is $195 and for SP031 5th Edition is $120 or save $40 when you purchase SP001 and its companion standard SP031 together for $275.

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