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 Committee Scope

Welcome to the home page of the API Subcommittee on Inspection and Mechanical Integrity (SCIMI). The SCIMI develops industry standards that address inspection and mechanical integrity issues related to refining process equipment. Issues of particular interest to the SCIMI include: safe practices in the inspection of and repair of pressure vessels, aboveground storage tanks, and piping; equipment reliability; corrosion mechanisms; and reducing capital and maintenance costs. Each meeting of the subcommittee provides a forum for an information exchange on problems and opportunities where industry experts share experiences from operations around the world.

The SCIMI work program of documents includes:

API 510 - Pressure Vessel Inspection Code
API 570 - Piping Inspection Code
RP 572 - Inspection of Pressure Vessels
RP 573 - Inspection of Fired Heaters and Boilers
RP 574 - Inspection of Piping System Components
RP 575 - Inspection of Aboveground Storage Tanks
RP 576 - Inspection of Pressure-Relieving Devices
RP 577 - Inspection of Welding and Metallurgy
RP 578 - Material Verification Program for New and Existing Alloy Piping Systems
RP 580 - Risk-Based Inspection
RP 581 - Risk-Based Inspection - Base Resource Document
RP 583 - Corrosion Under Insulation
RP 584 - Integrity Operating Windows
RP 585 - Pressure Equipment Failure

Chair:   Brent Ray, Marathon Petroleum Corporation
Vice-Chair:   Mark Geisenhoff, Flint Hills Resources

Thank you for attending the API 2019 Spring Refining and Equipment Standards Meeting. 

The next API Refining Meeting is the 2019 Fall Refining and Equipment Standards Meeting is planned for November 18 - 22, 2019 at the Hyatt Regency Atlanta in Atlanta, Georgia.

Click on “Calendar of Events" under Links for meeting logistics and other information.


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Folder: 2020 Spring Ballot Results2020 Spring Ballot
Folder: 2019 Fall 653 Comments2019 Fall 653
Folder: 2012 Fall Ballot Results2012 Fall Ballot
Folder: 2012 Spring Ballot Results2012 Spring Ballot
Folder: 2011 Fall Ballot Results2011 Fall Ballot
Folder: 2011 Fall - 653 RBI Ballot Results only2011 Fall - 653 RBI Ballot Results
Folder: 2011 Spring Ballot Results2011 Spring Ballot
(More Documents...)
 API SCIMI Master Scorecard
 Reference API Governance Documents
 API ICP (Individual Certification Programs)
 API-SCCM (SubCommittee on Corrosion & Materials)
 API-SCAST (SubCommitttee on Above Ground Storage Tanks)
 Interpretations - API Refining Equipment Standards
 API - Calendar of Events
 Post Construction Committee Website
 Subcommittee on Repair & Testing Draft Documents
 Subcommittee on Repair & Testing Meetng Minutes


 Ballot IDStatusResultsOpensClosesDescription
Committee ID : 1803SCIMI RP 580 Task Group
5099ClosedResolution Required03/16/202004/20/2020API RP 580 4th Edition
Committee ID : 1805SCIMI RP 581 Task Group
4861ClosedResolution Required07/26/201908/26/2019API RP 581 Atmospheric Storage Tank 2nd Ballot
4860ClosedResolution Required07/26/201908/26/2019API RP 581 Part 5, Annex 5A Bundle with changes, r10
4889ClosedResolution Required08/16/201909/16/2019API RP 581 Ballot Part 2 FINFAN Addition r3
4901ClosedResolution Required08/30/201910/11/2019API RP 581 Part 1, e3wA1 r6, Max Acceptable Safety Risk
5093ClosedResolution Required03/11/202004/08/2020API RP 581 Part 1, 4th Edition, Max Acceptable Safety Risk (1st Ballot)
5095ClosedResolution Required03/12/202004/09/2020API RP 581, 4th Edition, Internal Liner to Thinning calculation wording (1st Ballot)
5096ClosedResolution Required03/12/202004/10/2020API RP 581 Ballot - Very Low Susceptibility Chapters 9 and 14 for the 4th Ed (B#2)
5097ClosedResolution Required03/12/202004/10/2020API RP 581 Part 4, 4th Edition, Inspection Planning Methodology (1st Ballot)
5098ClosedResolution Required03/12/202004/14/2020API RP 581, Part 2, 4th Edition, Sulfidation Naphthenic Acid Ballot
Committee ID : 676SCIMI Subcommittee
4873ClosedResolution Required07/31/201909/09/2019API RP 577 3rd Edition Fourth Ballot - Red Line
4887ClosedResolution Required08/13/201909/24/2019API RP 575 4th Edition 3rd Ballot
4924ClosedResolution Required09/10/201910/15/2019API RP 584, 2nd Ed, 2nd Ballot with comments
4934ClosedResolution Required09/18/201910/22/2019API RP 583 CUI Third Ballot Sept 2019
4937ClosedResolution Required09/20/201910/25/2019API RP 585, Pressure Equipment Integrity Incident Investigation, Second Ed, First Ballot
4945ClosedResolution Required10/01/201911/04/2019API RP 580 4th Edition first draft for comment
4953ClosedResolution Required10/14/201911/11/2019API 510 Pressure Vessel Inspection Code 11th ed, 3rd Ballot
4960ClosedResolution Required10/25/201912/06/2019API Std Terms and Definitions Publication rev2 Second Ballot
5047ClosedResolution Required02/18/202003/31/2020API 653-2019 F2 Inquiries on section 4.4 & 9.10.1
5048ClosedResolution Required02/18/202003/31/2020API 653-2023 Required Thickness in Critical Zone
5049ClosedResolution Required02/18/202003/31/2020API 653-2031 Bottom Corrosion Agenda Item Rev 6
5051ClosedResolution Required02/20/202004/02/2020API 653-2037 Rev6 Section 6.4 Internal Inspection Intervals
5054ClosedResolution Required02/20/202004/02/2020API 653-2041 PT in lieu of Vacuum Box or Solution Film
5053ClosedResolution Required02/20/202004/02/2020API 653-2042 to include RBI in API 653 Section
5052ClosedResolution Required02/20/202004/02/2020API 653-2045 Rev1 Minimum Spacing Between New Plates and Existing Weld Seams
5060ClosedResolution Required02/25/202004/06/2020API 653-1002 Tank Bottom Patch Plate Thickness
5061ClosedResolution Required02/25/202004/06/2020API 653-1004 Rv0 Allowable tank settlement Requirements
5063ClosedResolution Required02/25/202004/06/2020API 653-1006 Location of Horizontal Weld Seam on Half Pad
5062ClosedResolution Required02/27/202004/06/2020API RP 573, Inspection of Fired Boilers and Heaters, fourth edition, 3rd Ballot
5070ClosedResolution Required02/28/202004/10/2020API 934-H For Comment only
5100ClosedResolution Required03/16/202004/15/2020API 510 Pressure Vessel Inspection Code 11th ed, 4th Ballot
5092ClosedResolution Required03/11/202004/15/2020API RP 584, Integrity Operating Windows, 2nd Ed, (3rd Ballot/partial ballot)
5101ClosedResolution Required03/17/202004/16/2020API RP 585, Pressure Equipment Integrity Incident Investigation, Second Ed, First Ballot
5102OpenIn Progress03/20/202004/17/2020API 934J Inspection, Assessment and Repair of Coke Drums and Peripheral Components in Delayed Coking
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