API 653 Internal / External Checklist - No Logo

• TANK NO:

• Site conducted

  Select
• Location
  Address

• Conducted on

  Date

General

• Nameplate:

  Yes

  No

  N/A

• Where is it located

• Design Std.:

  Select

• Manufacturer:

• Cathodic Protection:

  Yes

  No

  N/A

• Product:

• Specific Gravity:

• Normal Oper. Temp.:

• Nom. Tank Pressure:

Dimension

• Diameter:

• Nom. Capacity:

• Height:

• Working Height:

Geometry

• Foundation:

  Select

• Bottom:

  Select

• Shell:

  Select

• Explain

• Fixed Roof:

  Select

• Explain

  Yes

  No

  N/A

• Floating Roof:

  Select

• Primary Seal:

  Select

• Secondary Seal:

  Select

Dates

• Year Built:

• Last Inspection Internal:

• Last Inspection External:

• Last Coated:

Access

• Shell/Fixed Roof Access:

  Select

• Floating Roof Access:

  Select

Coatings

• Bottom: Internal:

• Bottom: External:

• Shell: Internal:

• Shell:External:

• Fixed Roof: Internal:

• Fixed Roof: External:

• Floating Roof: Internal

• Floating Roof: External:

• Shell Course 1 Material

• Shell Course 2 Material

• Shell Course 3 Material

• Shell Course 4 Material

• Shell Course 5 Material

• Shell Course 6 Material

• Shell Course 7 Material

• Shell Course 8 Material

• Bottom Plate Material

• Annular Plates Material

• Fixed Roof Plates Material

• Floating Roof Plates Material

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• The following is a summary of the significant findings of the inspection. (Item numbers correspond with item numbers on the API 653 Checklist). Note: Recommendations noted in this section are preliminary and may be subject to change pending Engineering calculations, as well as an Engineering review of the inspector's report.

• INSPECTION SUMMARY

• FOUNDATION:

• BOTTOM:

• SHELL:

• NOZZLES AND APPURTENANCES:

• FIXED ROOF:

• FLOATING ROOF:

• Other

1.1.1 FOUNDATION SETTLEMENT EVALUATION

• Perform MT or PT on welds at areas where settlement failed or where edge settlement is present. Acceptable / Ref. Summary / N/A

  Select

• Perform Settlement survey of the tank. Acceptable / Ref. Summary / N/A

  Select

1.1.2 General

• Check for signs of bottom leakage. Acceptable / Ref. Summary / N/A

  Select

• Tank Bottom Release Prevention Systems. Acceptable / Ref. Summary / N/A

  Select

• Inspect for excessive vegetation against bottom of tank. Acceptable / Ref. Summary / N/A

  Select

• Inspect for cavities under foundation. Acceptable / Ref. Summary / N/A

  Acceptable

  Ref. Summary

  N/A

1.1.3 Site Drainage

• Check for presence of containment drains.

  Select

• Verify if containment drains are clear and free of debris.

  Select

• Check for evidence of standing water against tank.

  Select

• Verify if surrounding grade allow water to drain away from the tank.

  Acceptable

  Ref. Summary

  N/A

1.1.4 Tank Foundation

• Inspect for broken concrete, spalling and cracks. (particular attention under back-up bars used in butt welded annular ring under the shell)

  Select

• Note station location of deterioration

• Check for presence of leak detection. Verify condition and no bottom leakage

  Select

• Check whether the concrete ringwall allows rainwater to properly drain away

  Select

• Verify condition of the foundation drip ring Acceptable / Ref. Summary / N/A (if applicable)

  Select

Asphalt Apron

• Check for settling of tank into asphalt Acceptable / Ref. Summary

  Select

• Inspect for broken, deteriorated or cracks in asphalt.

  Select

Earth

• Check for settling of tank into ground / earth.

  Select

Grillage member

• Grillage member details and orientation Spacing (center to center): Qty.: Inspect Grillage members for corrosion or distortion.

  Select

Anchorage

• Verify if the tank anchors are API standard N/A Acceptable / Ref. Summary type. If not, detail type.

• Inspect anchor bolt(s) or anchor strap(s) for distortion, indicating serious foundation settlement or tank overpressure uplift. Acceptable / Ref. Summary

  Yes

  No

  N/A

• Inspect nut(s) for a tightened snug fit, degradation of the anchor chair assembly Acceptable / Ref. Summary / N/A

  Yes

  No

  N/A

• Inspect anchor straps for degradation and concrete deterioration. Acceptable / Ref. Summary / N/A

  Yes

  No

  N/A

• Anchor Chair Dimension

  

• Anchor Chair Detail & Dimensions

• Qty:

• Spacing (ft.)

Anchorage

• Repad? Yes No

  Yes

  No

  N/A

• Tell-Tale? Yes No

  Yes

  No

  N/A

• Repad Size: Width X Height X Depth

• Bolt Size: Single Nut Double Nut

• Single nut or Double nut

  Select

• Anchor Strap Detail and Dimensions

  

• Type: A or B

• Qty:

• Spacing (ft.)

• Repad? Yes No

  Yes

  No

  N/A

• Tell-Tale? Yes No

  Yes

  No

  N/A

• Repad Size: Width Height

1.1.5 Fire Suppression System

• Verify the condition of the fire suppressant system.

  Select

• Check the overall condition of the foam

  Select

• Open-top / EFR: Check the condition of the fire suppressant shell extensions for corrosion or defects

  Select

• Inspect overall condition of deluge system and components (corrosion, missing or damaged parts, etc.)

  Acceptable

  Ref. Summary

  N/A
FOUNDATION RECOMMENDATION PHOTOS

• PHOTOS

  Media

• DESCRIPTION

1.2.1 Overview

• Verify if tank is clean, gas free and safe for entry. The tank shall be isolated (product, steam, electrical, etc.) to prepare for entry.

  Select

• Check for evidence of falling objects (roof rafters, large patches of scale, corroded through plates, etc.).

  Select

• Complete a Floating Roof Checklist to determine that the floating roof is secured for confined space entry.

  Select

1.2.2 Bottom

• Perform a visual inspection of the bottom plates. Document all findings and limitations (client must be notified of limitations while on site).

  Select

• Visual inspect for bottom depressions, bulges, and edge settlement.

  Select

• Perform Magnetic Flux Leakage (MFL) scan of tank bottom.

  Select

• Document pit depth with pit type (sharp edged, lake type, general, scattered, etc.).

  Select

• Collect and review bottom plate and critical zone UT (if applicable) per proposal.

  Select

• Check for reinforcing plates under brackets, supports, gauge poles, etc. and perform a visual inspection.

  Select

• Visually inspect floating roof leg striker plates for weld corrosion, pitting, cutting, or excessive dimpling.

  Select

• Visually inspect for the presence and condition of previous repairs (patch plates, puddle welds, etc.).

  Select

• Overall condition of the coating system (notate coating failure such as cracks, blistering, chalking, discoloration, rust blooms, adhesion failure, etc.).

  Select

• Are recordable indications and defects identified on the bottom layout and logged in the bottom reduction form?

  Select

Bottom Welds

• Perform a visual inspection of all lap/butt welds and internal shell-to-bottom weld. Document all findings and limitations (client must be notified of limitations while on site).

  Yes

  No

  N/A

• Vacuum Box Inspection of lap/butt welds

  Yes

  No

  N/A

• Magnetic Particle (MT) or Liquid Penetrant Inspection of lap/butt welds and/or internal shell-to-bottom weld.

  Yes

  No

  N/A

Bottom Sump(s)

• Perform a visual inspection of the sump(s). Document all findings and limitations (client must be informed of limitations while on site).

  Yes

  No

  N/A

• Document pit depth with pit type (sharp edged, lake type, general, scattered, etc.).

  Yes

  No

  N/A

• Collect and review bottom sump UT for significantly low reading(s).

  Yes

  No

  N/A

• Magnetic Particle (MT) or Liquid Penetrant (PT) Inspection of sump-to-bottom weld.

  Yes

  No

  N/A

• Magnetic Particle (MT) or Liquid Penetrant (PT) Inspection of sump welds.

  Yes

  No

  N/A

• Coating condition of the sump(s).

  Yes

  No

  N/A
RECOMMENDATION PHOTOS

• PHOTOS

  Media

• DESCRIPTION

• Inspect bottom edge projection for corrosion. If corrosion is present, consideration must be given to the extent of which it extends under the shell and internal bottom.

  Select

• Verify if soil or gravel are covering the bottom edge projection and/or the lower shell. If applicable, remove soil or gravel in areas for inspection. Detail findings and average depth of soil or gravel in summary.

  Select

• Average depth of soil or gravel:

• Check for inadequate plate projection away from the shell that is less than 3/8" in length and less than 0.100 thickness.

  Select

• Overall condition of coating system (notate coating failure such as cracks, blistering, chalking, discoloration, rust blooms, adhesion failure, etc.).

  Select

• Verify type and condition of bottom-to-foundation seal (moisture barrier), if applicable.

  Select

• Does the tank have a single bottom or double bottom?

  Select

• Distance between bottoms?

• Verify the underside of the new bottom is welded, caulked, or neither.

  Select

• Verify condition of dead shell material.

  Select

• Check if drain ports are present between double bottom

  Yes

  No

  N/A

• Are valves in the closed position?

  Yes

  No

  N/A
RECOMMENDATION PHOTOS

• PHOTO

  Media

• DESCRIPTION

1.3.1 Shell Plate

• Are conditions present that would limit the inspection of the external shell? (Client Acceptable / Ref. Summary / N/A must be informed of limitations while on site)

  Select

• Overall condition of coating system (notate coating failure such as cracks, blistering, chalking, discoloration, rust blooms, adhesion failure, etc.)

  Select

• Collect and review external shell UT per proposal or Client spec. Perform shell thickness calculations.

  Select

• Verify condition of exterior shell-to-bottom weld (corrosion, leaks, defects, etc.)

  Select

• Verify presence and condition of tank nameplate(s).

  Select

• Inspect the external shell for pitting, corrosion, discoloration, or other types of damage mechanisms. Perform the appropriate corrosion analysis for the extent of pitting/ corrosion present.

  Select

• Inspect for significant shell deformations (i.e., flat spots, bulging, peaking, banding, excessive hammer marks or gouges).

  Select

• Inspect external vertical and horizontal weld seams for weld defects and signs of weeping or leaks as viewed from grade, stairway, and manlifts or scaffolding (if applicable).

  Select

• Evaluate existing shell inserts and/or lapped patch plates. Verify the purpose of these details and determine whether the sizes, weld spacing, and thicknesses comply with the code .

  Select

• Inspect shell attachment support welds for presence of corrosion or defects. Note if supports were installed with reinforcing pads welded to the shell.

  Select

• If applicable and access allows, inspect the shell above the wind girder(s) and/or stiffening ring(s) for pitting/corrosion due to standing water.

  Select

• Inspect shell insulation for visible damage and sealant failure around insulation protrusions which allows for water ingress. Check for saturated or sagging insulation.

  Select

• Note if insulation was removed to allow for visual inspection of the shell exterior. Document and evaluate the extent of CUI damage if present.

  Select

External Riveted Shell

• If no records exist, document, or photograph the rivet pattern, rivet size and note whether the joint is butt riveted or lap riveted.

  Select

• Check for and estimate the amount of metal loss on the heads of rivets and bolts.

  Select

• Check for signs of weeping or leaks around the rivets or bolts and seams.

  Select

• Inspect vertical seams to see if they have been full fillet-lap welded.

  Select

• Inspect rivets, threaded connections, and riveted coupling-to-shell seams to see if they have been full fillet-lap welded.

  Select
SHELL RECOMMENDATIONS PHOTOS

• PHOTO

  Media

• DESCRIPTION

• Document shell penetrations on the Nozzle & Appurtenance Table.

  Select

• Evaluate each nozzle and manway in accordance with current API 650 and API 653 guidelines for acceptability (weld spacing, centerline, nozzle neck thickness, reinforcement size and thickness).

  Select

• Perform MT or ACFM examination on shell penetrations that do not meet the minimum required weld spacing per API 650, Figure 5.6, to determine acceptability for continued service.

  Select

• Inspect manways, nozzles, and bolting for external coating failure and presence of corrosion (thinning, pitting, scale, etc.).

  Select

• Inspect all external welds of nozzles, manways, reinforcing plates, and couplings for signs of leakage, defects, or corrosion.

  Select

• Inspect for flange and/or valve leaks around manways, nozzles, and appurtenances with specific attention to bolting, gaskets, and seals.

  Select

• Inspect for shell plate dimpling around nozzles, caused by excessive pipe deflection.

  Select

• Inspect mixer(s) for inadequate flange and cover thickness, evidence of leakage, defects, and condition of supports.

  Select

• Inspect davit arms and welds on shell mounted davit clips above large valves or equipment.

  Select

• Check for reinforcement on all shell penetrations over 2” NPS.

  Select

• Verify tell-tales on reinforcing plates are not plugged (caulk or grease is acceptable to prevent corrosion).

  Select

• Split segment reinforcing plates: Verify that each segment has telltales present.

  Select

• Check the condition of temperature indicators / probes (corrosion, mechanical damage, etc.).

  Select

• Check for presence and condition of grounding cables and grounding attachments to the shell.

  Select

• Inspect condition of insulation and sealant around manways and nozzles.

  Select
NOZZLE RECOMMENDATION PHOTOS

• PHOTO

  Media

• DESCRIPTION

• Detail shell vents. Shell vent rows. No. of vents row 1 (bottom): Vent Size: No. of vents row 2 (top): Vent Size:

• How many Shell vent rows?

• How many vents on each row?

• Inspect for corrosion on the shell vent hoods and screens. Note how many screens are missing or damaged.

  Select

• Detail overflow slot(s) on the Nozzle & Appurtenance Table with weld spacing from the horizontal weld and size. (note if estimated due to accessibility)

  Select

• Check overflows for corrosion and adequate screening

  Select

• Verify overflow(s) are not located above any tank valves or equipment, stairways, or nozzles.

  Select
SHELL VENTS / OVERFLOW RECOMMENDATIONS

• PHOTO

  Media

• DESCRIPTION

• Detail how many wind girder(s).

• Detail how many stiffening ring(s).

• Inspect the wind girder(s) / stiffening ring(s) for corrosion especially at the shell welded junction.

  Select

• Check support welds to shell for pitting especially at the shell plate junction.

  Select

• Note whether supports have reinforcing pads welded to shell.

  Select

• Check if the wind girder(s) and/or stiffening ring(s) are seal welded or stitch welded. If more than one, specify which in Ref. Summary.

  Select

• Check for drain holes and the condition of drain holes.

  Select
Wind Girder / Stiffening Ring RECCOMENDATION

• PHOTO

  Media

• DESCRIPTION

• Identify type of handrails.

  Select

• Identify and report size of handrails.

• Inspect treads for corrosion or defects.

  Select

• Inspect attachment welds for corrosion or defects.

  Select

• Identify cold joints and sharp edges, with attention to handrails and midrails.

  Select

• Inspect stairway stringers for corrosion, coating failure, and weld failure. Inspect attachment of stairway treads to stringer.

  Select

• Inspect stairway supports to shell welds and reinforcement pads.

  Select

Vertical Ladder

• Inspect ladder rungs and frame for degradation.

  Select

• Inspect ladder cage for degradation.

  Select

Top Landing / Platform

• Identify and report type and size of handrails.

  Select

• Confirm handrail toe boards are a min. 3.5” in height with no excessive gaps.

  Select

• Inspect condition and proper function of safety drop bars, safety gates or safety chains.

  Select

• Inspect frame for corrosion and coating failure.

  Select

• Inspect attachment welds for corrosion or defects.

  Select

• Identify cold joints and sharp edges, with attention to handrails and midrails.

  Select

• Inspect the attachment of frame to supports and/or supports to tank for corrosion and weld failure.

  Select

• Check reinforcement pads where supports are attached to the shell or roof for corrosion or defects.

  Select

• Inspect the surface that deck plate or grating rests on, for thinning and holes.

  Select

• Inspect deck plate for corrosion caused thinning or holes (not drain holes) and coating failure.

  Select

• Inspect grating for corrosion-caused thinning of bars and failure of welds.

  Select

• Check for grating tie down clips and inspect for defects.

  Select
ACCESS RECOMMENDATIONS

• PHOTO

  Media

• DESCRIPTION

1.4.1 Fixed Roof -External

• Inspect for low areas, excessive waviness, or bulging on the roof deck.

  Select

• Inspect for active corrosion, pitting or holes.

  Select

• Perform visual inspection of the lap welds and/or butt welds for corrosion or defects.

  Select

• Overall condition of coating system (notate coating failure such as cracks, blistering, chalking, discoloration, rust blooms, adhesion failure, etc.).

  Select

• Collect and review plate UT for significantly low reading(s). Client must be notified while on site.

  Select

• Perform visual inspection of roof-to-shell joint if visible.

  Select

• Check for and evaluate CUI damage if insulation was removed for inspection.

  Select

• Document and identify all recordable indications and defects on the fixed roof layout.

  Select

Nozzles and Appurtenances

• Inspect condition of roof manways, nozzles and appurtenances (corrosion, coating failure, damage, missing bolts, etc.).

  Select

• Take photos of all instrumentation connected to nozzles and photos of any data-plates and nametags attached.

  Select

• Check for openings or exposed electrical connections or wiring.

  Select

Scaffold Support

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• 

• Inspect scaffold support for corrosion.

  Select

• Is the scaffold support an API standard type attachment?

  Select

• Is there a reinforcing plate present?

  Select

• Pipe diameter (in.)

  Select

• Thickness of pipe

  Select

• Diameter of reinforcing plate (in.)

  Select

Insulation

• Inspect for damage, tears, deteriorated sealant, bulging, wet insulation, etc.

  Select

• Does the insulation limit or prevent inspection of the roof to shell joint?

  Select

Standard Venting (rim vent hoods)

• Verify vents allow free air flow and screens are free from debris.

  Select

• Check and detail vents that have missing screens and/or vent hoods.

  Select

• Verify vent hoods are secured with a pin and in the down position. Check for missing bolting hardware.

  Select

Emergency Venting (Mechanical, PRV, PSV, etc.)

• Check for setting of mechanical vents from the nametag and notate on the fixed roof nozzle table.

  Select

• Check and detail vents that have missing screens and/or vent hoods.

  Select

• Take photos of each vent and tag if present. (even if tag isn’t legible)

  Select

Geo-Dome

• Geo-Dome: Check for evidence of leaking panels (areas of water on the internal floating roof) and damaged panels (tears, holes, etc.)

  Select

• Geo-Dome: Check for pinholes and tears in the roof panels and any visible missing components.

  Select

• Geo-Dome: Check for damaged or deteriorated skylights.

  Select
FIXED ROOF RECOMMENDATIONS

• PHOTO

  Media

• DESCRIPTION

  Media

• Steel: Overall levelness and condition of the floating roof.

  Select

Floating Roof Drain(s)

• Floating Roof Drain Type and Qty.

  Select

Primary Seal

• Inspect seal fabric for deterioration, hole, tears, and cracks.

  Select

Secondary Seal

• Inspect seal fabric for deterioration, hole, tears, and cracks.

  Select

Appurtenance Seal(s)

• Check condition of seal around columns, guide pole(s) and gauge pole(s).

  Select

Roof Supports (Floating Roof Legs and Cable Suspension)

• Inspect legs and sleeves for signs of thinning and corrosion.

  Acceptable

  Ref. Summary

  N/A

Bonding/Grounding

• Bonding/Grounding: Verify if floating roof is equipped with a minimum of four (4) bonding shunts or a minimum of two (2) flexible multi-strand cables from the fixed roof to the internal roof.

• Number of Shunts:

• Number of Cables:

Anti-Rotation

• Steel: Type of Anti-rotation. Verify condition and if misalignment is present.

  Acceptable

  Ref. Summary

  N/A

Rolling Ladder & Runway

• Inspect rolling ladder for corrosion.

  Acceptable

  Ref. Summary

  N/A
FLOATING ROOF RECOMMENDATIONS

• PHOTO

  Media

• DESCRIPTION

• Inspect for pitting, holes, weld corrosion and evidence of product on deck

  Acceptable

  Ref. Summary

  N/A

• Overall condition of coating system (notate coating failure such as cracks, blistering, chalking, discoloration, rust blooms, adhesion failure, etc.).

  Acceptable

  Ref. Summary

  N/A

• Verify deck lap seams have been stitch welded within 12 inches of each penetration.

  Acceptable

  Ref. Summary

  N/A

• Collect and review deck plate UT for significantly low reading(s).

  Acceptable

  Ref. Summary

  N/A

• Document and identify all recordable indications and defects on the floating roof layout.

  Acceptable

  Ref. Summary

  N/A

• Check condition of foam dam.

  Acceptable

  Ref. Summary

  N/A

Pontoons

• Check all pontoons for signs of water, product, residue, and vapors (numbering should begin counterclockwise from the gauge pole).

  Acceptable

  Ref. Summary

  N/A

Nozzle and Appurtenances

• Inspect condition covers, seals, and gaskets for all floating roof penetrations (e.g., sample hatch, vacuum breakers, manways, etc.).

  Acceptable

  Ref. Summary

  N/A

• Inspect nozzles for signs of defects, corrosion, and coating failure.

  Acceptable

  Ref. Summary

  N/A

Floating Roof Leg

• Inspect legs and sleeves for signs of thinning and corrosion.

  Acceptable

  Ref. Summary

  N/A

• Inspect the High/Low leg pins and holes for corrosion and tears.

  Acceptable

  Ref. Summary

  N/A

• Inspect legs for distortion and surrounding deck plate for tears or cracking. Verify reinforcing plates are present around legs.

  Acceptable

  Ref. Summary

  N/A

Grounding

• Has the floating roof been equipped with a grounding system?

  Acceptable

  Ref. Summary

  N/A

Primary Seal

• Inspect seal fabric for deterioration, hole, tears, and cracks.

  Acceptable

  Ref. Summary

  N/A

Secondary Seal

• Inspect seal fabric for deterioration, hole, tears, and cracks.

  Acceptable

  Ref. Summary

  N/A

Rolling Ladder & Runway

• Inspect rolling ladder for corrosion.

  Acceptable

  Ref. Summary

  N/A

• Inspect for wear and corrosion where rolling ladder attaches to gauging platform.

  Acceptable

  Ref. Summary

  N/A
FLOATING ROOF RECOMMENDATION

• PHOTO

  Media

• DESCRIPTION

External Gauge

• Inspect automatic gauge housing for damage.

  Acceptable

  Ref. Summary

  N/A

• Detail Make, Model No., Serial No. and Mfr. Date. of tank gauge

Internal Gauge

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• Yes

  No

  N/A

• Gauge Pole Details: Size: Slotted? ☐ Yes, Slot Size:
  
  

• Check for gauge well corrosion and/or distortion.

  Yes

  No

  N/A

• Check if the gauge pole supports are welded to the shell or repad and not the bottom. Check support welds for corrosion or defects.

  Yes

  No

  N/A

• Check condition of gauge well seal system (i.e., ‘sock’). Typically present on tanks with floating roofs.

  Yes

  No

  N/A
TANK GAUGING RECOMMENDATION

• PHOTO

  Media

• DESCRIPTION

• API Inspector:

  Sign

• API Cert #:

  Select

• 

OVERVIEW

• OVERVIEW

  Media

• DESCRIPTION

FOUNDATION

• FOUNDATION

  Media

• DESCRIPTION

EDGE PROJECTION

• EDGE PROJECTION

  Media

• DESCRIPTION

SHELL

• SHELL

  Media

• DESCRIPTION

SHELL NOZZLES AND APPURTENANCES:

• SHELL NOZZLES AND APPURTENANCES:

  Media

• DESCRIPTION

FIXED ROOF:

• FIXED ROOF:

  Media

• DESCRIPTION

FIXED ROOF NOZZLES

• FIXED ROOF NOZZLE

  Media

• DESCRIPTION

FLOATING ROOF:

• FLOATING ROOF:

  Media

• undefined