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Subcommittee on Aboveground Storage Tanks

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 API Contact

Nate Wall
Senior Associate, Standards
American Petroleum Institute
1220 L Street, NW
Washington, DC 20005-4070
Phone: 202-682-8157
WallN@api.org


 Subcommittee Scope

Welcome to the API Subcommittee on Aboveground Storage Tanks (SCAST) web page. SCAST provides an important service to the refining, marketing, pipeline and petrochemical industry by developing recommended practices and construction, inspection and repair standards for aboveground storage tanks. In addition to the petroleum industry, API's tank standards are also used in the pulp and paper, utilities, food processing, fertilizer, and other process-related industries. SCAST's portfolio of standards includes:

  • Std 620 - Design and Construction of Large, Welded, Low-Pressure Storage Tanks
  • Std 625 - Tank Systems for Refrigerated Liquefied Gas Storage
  • Std 650 - Welded Tanks for Oil Storage
  • RP 651 - Cathodic Protection of Aboveground Storage Tanks
  • RP 652 - Lining of Aboveground Petroleum Storage Tank Bottoms
  • Std 653 - Tank Inspection, Repair, Alteration, and Reconstruction
  • Spec 12B - Specification for Bolted Tanks for Storage of Production Liquids
  • Spec 12D - Specification for Field Welded Tanks for Storage of Production Liquids
  • Spec 12F - Specification for Shop Welded Tanks for Storage of Production Liquids
  • Spec 12P - Specification for Fiberglass Reinforced Plastic Tanks
  • RP 12R1 - RP for Setting, Maintenance, Inspection, Operation, and Repair of Tanks in Production Service
  • Std 2015 - Requirements for Safe Entry and Cleaning of Petroleum Storage Tanks
  • RP 2016 - Guidelines and Procedures for Entering and Cleaning Petroleum Storage Tanks
  • Publ 2026 - Safe Access/Egress Involving Floating Roofs of Storage Tanks in Petroleum Service (SCAST document as of 2013)
  • RP 2027 - Ignition Hazards and Safe Work Practices for Abrasive Blasting in Petroleum Service (SCAST document as of 2013)
  • RP 2207 - Preparing Tank Bottoms for Hot Work (SCAST document as of 2013)
  • Std 2510 - Design and Construction of LPG Installations (SCAST document as of 2013)
  • Std 2610 - Design, Construction Operation, Maintenance, and Inspection of Terminal and Tank Facilities

These standards draw from a synergy of a high level of technical expertise and a long history of experience. The tank standards benefit owner/operators by providing the perspective and experience of other companies. Small companies gain expertise that would not be practically available otherwise. All companies benefit from proactively following industry standards developed using API's consensus process.

Chair: Hally Cooper, Alyeska Pipeline Service Company
Vice-Chair: David Clark, Buckeye Partners, L.P.


Active members, thank you for attending the API 2016 Spring Refining Equipment Standards Meeting.

The SCAST meets next during the 2016 Fall Refining Equipment Standards Meeting, November 14 - 17, at the Hyatt Regency Hotel, New Orleans, LA. Click on ‚ÄúCalendar of Events" under Links for meeting logistics and other information.

 
 

 Meeting Information

Folder: 2016 Fall2016 FallWallN@api.org
Folder: 2016 Spring2016 SpringWallN@api.org
Folder: API Storage Tank Conference UpdatesAPI Storage Tank Conference Updatescrimaudos@api.org

 Technical Interpretations

Folder: Answered Technical Inquiries - by StandardAnswered Technical Inquiries - by Standardcrimaudos@api.org

 Links

  Reference Documents
  Calendar of Events
  API Refining Meeting Information
 

 Ballots

 Ballot IDStatusResultsOpensClosesDescription
Committee ID : 677SCAST - Subcommittee on Aboveground Storage Tanks
3922ClosedIn Progress08/09/201609/26/2016Technical Inquiries for Ballot (SCAST) Fall 2016
3923ClosedIn Progress08/11/201609/28/2016620-2018, Rev. 1: Revise the Thickness Limits for UT in Lieu of RT (for Std. 620)
3924ClosedIn Progress08/11/201609/28/2016620-2020, Rev. 3: Annex Q and R Figure 5-8 Manway Closure Clarification
3925ClosedIn Progress08/11/201609/28/2016650-1017, Rev. 4: Figure 5-7a - Shell Manhole Flange Flatness and Roughness Tolerance
3926ClosedIn Progress08/11/201609/28/2016650-2014, Rev. 3: Electrode Diameter for Non-structural Small Attachments Before Hydro Test
3927ClosedIn Progress08/11/201609/28/2016650-2020, Rev. 1: Revise the Thickness Limits for UT in Lieu of RT
3928ClosedIn Progress08/11/201609/28/2016650-2026, Rev. 2: Define "Annular Plate"
3929ClosedIn Progress08/11/201609/28/2016650-2028, Rev. 4: Hydrotest Requirements in Annexes C and H
3930ClosedIn Progress08/11/201609/28/2016650-2031, Rev. 1: Floating Roof Clearance
3932ClosedIn Progress08/17/201610/04/2016653-2011, Rev. 6: Clarify Figure 9.13 (Typical Weld-on Patch Plates on Tank Bottom Plates)
3933ClosedIn Progress08/17/201610/04/2016653-2018, Rev 0: Credit in Table 6.1 for Release Prevention Barrier
3931ClosedIn Progress08/17/201610/04/2016653-275, Rev 8: Weldability of Steel from Existing Tanks
3940ClosedIn Progress08/19/201610/07/2016620-1006, Rev. 0: Corrections to Equations in L.4.2.1
3941ClosedIn Progress08/19/201610/07/2016650-1041, Rev. 1: Anchorage Clearance of Bottom Plate Projection
3942ClosedIn Progress08/22/201610/07/2016650-1043, Rev. 0: Flush Type Clean Out Bottom Plate 5.7.7.6 & 5.7.7.7 (f)
3943ClosedIn Progress08/19/201610/07/2016650-1049, Rev. 0: Corrections to Equations 7.2-4 and 7.2-5
3944ClosedIn Progress08/19/201610/07/2016650-1050, Rev. 0: Shell Manhole Cover & Flange Thickness Sections 5.8.3.2 and S.3.3.3
3949ClosedIn Progress08/19/201610/07/2016650-1052, Rev. 0: Revise API 650 Figures 5.13 and 5.15, Flush-type Cleanout Fittings
3950ClosedIn Progress08/22/201610/11/2016653-1001, Rev. 1: Hot Tap Reinforcing
 
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