UFGS 33 56 21.17 - Single Wall Aboveground Fixed Roof Steel POL Storage Tank.pdf

USACE / NAVFAC / AFCEC / NASA UFGS- 33 56 21. 17 ( November 2018) Change 1 - 11/ 20 Pr epar i ng Act i v i t y: NAVFAC Super sedi ng UFGS- 33 56 13. 13 ( August 2015)

UNI FI ED FACI LI TI ES GUI DE SPECI FI CATI ONS

Ref er ences ar e i n agr eement wi t h UMRL dat ed Oct ober 2020

SECTION TABLE OF CONTENTS

DIVISION 33 - UTILITIES

SECTION 33 56 21.17

SINGLE WALL ABOVEGROUND FIXED ROOF STEEL POL STORAGE TANK

11/18

PART 1 GENERAL

1.1 REFERENCES

1.2 SUBMITTALS

1.3 COPIES OF API PUBLICATIONS

1.4 RELATED REQUIREMENTS

1.5 DESIGN REQUIREMENTS

1.5.1 Seismic Design Requirements

1.5.1.1 Columns

1.5.1.2 Shell Height

1.5.2 Tank Nozzles

1.5.3 Tank Roof

1.5.3.1 Emergency Ventilation

1.5.3.2 Emergency Vent Devices

1.5.4 Corrosion Allowance

1.5.5 Design Metal Temperature

1.5.6 Tank Bottom

1.6 QUALIFICATIONS OF TANK ERECTOR

1.6.1 Welding Qualifications

1.7 TANK CALIBRATION EXPERIENCE

1.8 QUALIFICATIONS OF FLOATING PAN MANUFACTURER

1.9 QUALITY ASSURANCE

1.9.1 Delivery and Storage Handling

1.9.2 Steel Tank Drawing Requirements

1.9.3 Data Requirements

1.9.4 Weld Inspector Certification

1.9.5 Test Reports

1.9.6 Inspection and NDE Personnel

1.9.6.1 NDE Personnel Certification

1.9.6.2 Qualifications of Testing Agency

1.9.7 Qualifications of API Std 653 Inspector

PART 2 PRODUCTS

2.1 MATERIALS

SECTION 33 56 21.17 Page 1

2.1.1 Materials for System Components, Pipe, and Fittings

2.2 STRUCTURAL STEEL

2.3 CARBON STEEL, PIPE FITTINGS, FLANGES, GASKETS, AND BOLTING

2.4 STAINLESS STEEL PIPE, FITTINGS, FLANGES, GASKETS, AND BOLTING

2.5 ALUMINUM PIPING FOR STILLING WELLS

2.6 BOLTING AND ALUMINUM FLANGES FOR STILLING WELLS

2.7 WELDING FOR ALUMINUM PIPING

2.7.1 Process for Aluminum

2.7.2 Aluminum Welding Electrodes and Rods

2.8 BOLTING FOR SHELL MANHOLE COVERS

2.9 GASKETS FOR MANHOLE COVERS, STILLING WELL FLANGES, AND ROOF CENTER

VENT

2.10 TANK BOTTOM TO FOUNDATION SEAL

2.10.1 Tank Bottom to Foundation Gasket - Self Anchored Tanks

2.10.2 Tank Shims and Tank Grout - Anchored Tanks

2.11 INTERIOR PROTECTIVE COATING SYSTEM

2.12 EXTERIOR PROTECTIVE COATING SYSTEM

2.13 APPURTENANCES

2.13.1 Floating Pan Installation Hatch

2.13.2 Floating Pan

2.13.2.1 Pan Integrity

2.13.2.2 Floating Pan Prototype Fire Test

2.13.2.3 Joint Connections

2.13.2.4 Aluminum Extrusions

2.13.2.5 Aluminum Sandwich Panels

2.13.2.6 Support Legs

2.13.2.7 Periphery Seals

2.13.2.8 Penetrations

2.13.2.9 Manhole

2.13.2.9.1 Pressure/Vacuum Vent

2.13.2.10 Grounding Cables

2.13.2.11 Anti-Rotation Cable

2.13.3 Sample Gauge Hatch

2.13.4 Floating Seal and Retrieval Winch

2.13.5 Mechanical Tape Level Gauge

2.13.6 Mechanical Tape Level Gauge

2.13.7 Venting

2.13.7.1 Overflow/Circulation Vents

2.13.7.2 Center Roof Vent

2.13.8 Circumferential Stairway and Platforms

2.13.9 Manhole Access Platforms

2.13.10 Roof Perimeter Guardrail

2.13.11 Internal Ladders

2.13.12 Internal Ladder Access Hatch

2.13.13 Emergency Vent

2.13.14 Roof Circulation Vent/Inspection Hatches

2.13.15 Water Draw-Off System

2.13.15.1 Basis of Design of Water Draw-Off System

2.13.15.1.1 Detail Drawing

2.13.16 Side stream Filtration System

2.13.16.1 Basis of Design of Side stream Filtration System

2.13.16.2 Detail Drawing

2.13.17 Shell Manholes

2.13.18 Scaffold Cable Support

2.13.19 Antiseize Compound

2.13.20 Channel Mounting

2.13.21 Anchors

PART 3 EXECUTION

SECTION 33 56 21.17 Page 2

3.1 SAFETY PRECAUTIONS

3.2 API Std 653 INSPECTION REPORTS

3.3 CONSTRUCTION

3.3.1 Accessibility

3.3.2 Tank Erector Site Superintendent

3.3.3 Floating Pan Superintendent

3.3.4 Tank

3.3.5 Roof Plate Seams

3.3.5.1 Prohibition of Protective Coatings on Surfaces to be Welded

3.3.6 Roof Supports

3.3.7 Surface Finishing

3.3.8 Tank Bottom To Foundation Seal

3.3.9 Attachments

3.3.10 Nozzles

3.3.11 Tank Bottom Sump

3.4 INSTALLATION OF INTERNAL FLOATING PAN

3.5 END CONNECTIONS FOR SYSTEM COMPONENTS, VALVES, PIPE, AND FITTINGS

3.6 FIELD QUALITY CONTROL

3.6.1 Tank Calibration Table

3.6.1.1 Tank Calibration Method

3.6.2 Weld Inspection

3.6.3 Reports of Other Tests and Examinations

3.6.4 Tightness Tests

3.6.4.1 Penetrating Oil Test

3.6.4.2 Vacuum Box Test of Tank Bottom

3.6.4.3 [Hydrostatic Test and] Settlement [During Fill Test]

3.6.5 Tank Bottom Puddle Test

3.6.6 Fill Test and Related Miscellaneous Tests

3.6.6.1 Fill Test

3.6.7 Roof Puddle Test

3.6.7.1 Stilling Well Plumbness Test

3.6.8 Retesting

3.6.9 Maintenance Instructions

3.6.10 Operator Instructions

-- End of Section Table of Contents --

SECTION 33 56 21.17 Page 3

USACE / NAVFAC / AFCEC / NASA UFGS- 33 56 21. 17 ( November 2018) Change 1 - 11/ 20 Pr epar i ng Act i v i t y: NAVFAC Super sedi ng UFGS- 33 56 13. 13 ( August 2015)

UNI FI ED FACI LI TI ES GUI DE SPECI FI CATI ONS

Ref er ences ar e i n agr eement wi t h UMRL dat ed Oct ober 2020

SECTION 33 56 21.17

SINGLE WALL ABOVEGROUND FIXED ROOF STEEL POL STORAGE TANK

11/18

NOTE: Thi s gui de speci f i cat i on cover s t he r equi r ement s f or desi gn and i nst al l at i on of abovegr ound st eel t anks wi t h f i xed cone r oof s.

Adher e t o UFC 1-300-02 Uni f i ed Faci l i t i es Gui de Speci f i cat i ons ( UFGS) For mat St andar d when edi t i ng t hi s gui de speci f i cat i on or pr epar i ng new pr oj ect speci f i cat i on sect i ons. Edi t t hi s gui de speci f i cat i on f or pr oj ect speci f i c r equi r ement s by addi ng, del et i ng, or r evi s i ng t ext . For br acket ed i t ems, choose appl i cabl e i t em( s) or i nser t appr opr i at e i nf or mat i on.

Remove i nf or mat i on and r equi r ement s not r equi r ed i n r espect i ve pr oj ect , whet her or not br acket s ar e present.

Comment s, suggest i ons and r ecommended changes f or t hi s gui de speci f i cat i on ar e wel come and shoul d be submi t t ed as a Criteria Change Request (CCR) .

NOTE: Tanks used t o st or e pr oduct s havi ng a t r ue vapor pr essur e l ess t han 10. 3 kPa 0. 5 psi usual l y ar e not equi pped wi t h f l oat i ng pans. Thi s speci f i cat i on i s however wr i t t en gener al l y based on JP- 5, JP- 8, and Jet A F- 24 j et f uel and does cont ai n r equi r ement s f or a f l oat i ng pan. Ot her pr oduct s wi t h a t r ue vapor pr essur e gr eat er t han 10. 3 kPa 0. 5 psi , i . e. gasol i ne, may r equi r e addi t i onal f i r e pr ot ect i on pr ovi s i ons such as f oam chamber s whi ch ar e not i ncl uded i n t hi s speci f i cat i on.

NOTE: Ear t hwor k, concr et e wor k, pi pi ng, and ot her wor k i n connect i on wi t h t he t anks shoul d be i ncl uded i n t he appr opr i at e sect i ons of t he pr oj ect speci f i cat i on or i n a separ at e pr oj ect speci f i cat i on.

SECTION 33 56 21.17 Page 4

NOTE: The f ol l owi ng i nf or mat i on must be shown on t he pr oj ect dr awi ngs:

1. The ext ent of t he wor k i ncl uded i n t he pr oj ect shoul d be i ndi cat ed on dr awi ngs showi ng t he si t e l ayout , l ocat i on of out l et s and i nl et s, wat er dr aw of f connect i on, manhol es, ot her t ank appur t enances, and ot her dat a r equi r ed f or desi gn by t he Cont r act or .

2. I f concr et e f oundat i on wor k i s pr ovi ded under a separ at e cont r act , Gover nment wor k shoul d i ncl ude f oundat i ons, set t i ng anchor bol t s, concr et e r et ai ni ng r i ng, and ot her per t i nent wor k such as sand f or sand cushi on, wat er f or t est i ng, and f ur ni shi ng and i nst al l i ng any t ank accessor i es not a par t of t hi s speci f i cat i on.

NOTE: Thi s sect i on i s not i nt ended f or t anks wi t h al umi num geodesi c dome r oof s.

NOTE: Thi s sect i on i s not i nt ended t o be used wi t hout Sect i on 33 56 21. 18 SI NGLE WALL POL TANK UNDERTANK I NTERSTI TI AL SPACE and Sect i on 33 52 43. 13 AVI ATI ON FUEL PI PI NG or Sect i on 33 52 40 FUEL SYSTEMS PI PI NG ( NON- HYDRANT) . For pi pi ng, pi pe f i t t i ngs, f l anges, gasket s, and bol t i ng, r ef er t o Section 33 52 43. 13 AVI ATI ON FUEL PI PI NG or Sect i on

33 52 40 FUEL SYSTEMS PI PI NG ( NON- HYDRANT) .

PART 1 GENERAL

1.1 REFERENCES

NOTE: Thi s par agr aph i s used t o l i s t t he publ i cat i ons c i t ed i n t he t ext of t he gui de speci f i cat i on. The publ i cat i ons ar e r ef er r ed t o i n t he t ext by basi c desi gnat i on onl y and l i s t ed i n t hi s par agr aph by or gani zat i on, desi gnat i on, dat e, and t i t l e.

Use t he Ref er ence Wi zar d' s Check Ref er ence f eat ur e when you add a Ref er ence I dent i f i er ( RI D) out si de of t he Sect i on' s Ref er ence Ar t i c l e t o aut omat i cal l y pl ace t he r ef er ence i n t he Ref er ence Ar t i c l e. Al so use t he Ref er ence Wi zar d' s Check Ref er ence f eat ur e t o updat e t he i ssue dat es.

Ref er ences not used i n t he t ext wi l l aut omat i cal l y be del et ed f r om t hi s sect i on of t he pr oj ect speci f i cat i on when you choose t o r econci l e r ef er ences i n t he publ i sh pr i nt pr ocess.

SECTION 33 56 21.17 Page 5

The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.

AMERICAN IRON AND STEEL INSTITUTE (AISI)

AISI E 1 (2011) Steel Plate Engineering Data Series

- Design of Plate Structures, Volumes I &

II

AMERICAN PETROLEUM INSTITUTE (API)

API MPMS 2.2A (1995; R 2017) Manual of Petroleum Measurement Standards Chapter 2-Tank Calibration Section 2A-Measurement and Calibration of Upright Cylindrical Tanks by the Manual Tank Strapping Method

API MPMS 2.2B (1989; R 2019) Manual of Petroleum Measurement Standards Chapter 2: Tank Calibration - Section 2B: Calibration of Upright Cylindrical Tanks Using the Optical Reference Line Method

API MPMS 2.2C (2002; R 2013) Manual of Petroleum Measurement Standards Chapter 2: Tank Calibration - Section 2C - Calibration of Upright Cylindrical Tanks Using the Optical-Triangulation Method

API MPMS 2.2D (2003; R 2014) Manual of Petroleum Measurement Standards Chapter 2: Tank Calibration - Section 2D Calibration of Upright Cylindrical Tanks Using the Internal Electro-Optical Distance-Ranging Method

API RP 2009 (2002; R 2007; 7th Ed) Safe Welding, Cutting, and Hot Work Practices in Refineries, Gasoline Plants, and Petrochemical Plants

API Std 650 (2013; Errata 1 2013; Addendum 1 2014;

Errata 2 2014; Addendum 2 2016; Addendum 3 2018) Welded Tanks for Oil Storage

API Std 653 (2014; Addendum 1 2018) Tank Inspection, Repair, Alteration, and Reconstruction

API Std 2000 (2014) Venting Atmospheric and Low-Pressure Storage Tanks

AMERICAN SOCIETY FOR NONDESTRUCTIVE TESTING (ASNT)

ASNT SNT-TC-1A (2016) Recommended Practice for Personnel Qualification and Certification in Nondestructive Testing

SECTION 33 56 21.17 Page 6

AMERICAN SOCIETY OF MECHANICAL ENGINEERS (ASME)

ASME B16.5 (2017) Pipe Flanges and Flanged Fittings NPS 1/2 Through NPS 24 Metric/Inch Standard

ASME B16.9 (2018) Factory-Made Wrought Buttwelding Fittings

ASME B16.11 (2016) Forged Fittings, Socket-Welding and Threaded

ASME B31.3 (2016) Process Piping

ASME B73.1 (2012) Specification for Horizontal End Suction Centrifugal Pumps for Chemical Process

ASME B73.2 (2016) Specification for Vertical In-Line Centrifugal Pumps for Chemical Process

AMERICAN WELDING SOCIETY (AWS)

AWS A5.10/A5.10M (2017) Welding Consumables - Wire Electrodes, Wires and Rods for Welding of Aluminum and Aluminum-Alloys - Classification

AWS QC1 (2016) Specification for AWS Certification of Welding Inspectors

ASTM INTERNATIONAL (ASTM)

ASTM A123/A123M (2017) Standard Specification for Zinc (Hot-Dip Galvanized) Coatings on Iron and Steel Products

ASTM A325 (2014) Standard Specification for Structural Bolts, Steel, Heat Treated, 120/105 ksi Minimum Tensile Strength

ASTM A325M (2014) Standard Specification for Structural Bolts, Steel, Heat Treated, 830 MPa Minimum Tensile Strength (Metric)

ASTM A492 (1995; R 2019) Standard Specification for Stainless Steel Rope Wire

ASTM B209 (2014) Standard Specification for Aluminum and Aluminum-Alloy Sheet and Plate

ASTM B209M (2014) Standard Specification for Aluminum and Aluminum-Alloy Sheet and Plate (Metric)

ASTM B241/B241M (2016) Standard Specification for Aluminum and Aluminum-Alloy Seamless Pipe and Seamless Extruded Tube

ASTM B247 (2020) Standard Specification for Aluminum and Aluminum-Alloy Die Forgings, Hand

SECTION 33 56 21.17 Page 7

Forgings, and Rolled Ring Forgings

ASTM B247M (2020) Standard Specification for Aluminum and Aluminum-Alloy Die Forgings, Hand Forgings, and Rolled Ring Forgings (Metric)

ASTM D471 (2016a) Standard Test Method for Rubber Property - Effect of Liquids

ASTM D3489 (2017) Standard Test Method for Microcellular Urethane Materials

ASTM D4065 (2012) Standard Practice for Plastics:

Dynamic Mechanical Properties:

Determination and Report of Procedures

ASTM D4814 (2020a) Standard Specification for Automotive Spark-Ignition Engine Fuel

ASTM E329 (2020) Standard Specification for Agencies Engaged in Construction Inspection, Testing, or Special Inspection

NACE INTERNATIONAL (NACE)

NACE SP0178 (2007) Design, Fabrication, and Surface Finish Practices for Tanks and Vessels to be Lined for Immersion Service

NATIONAL ELECTRICAL MANUFACTURERS ASSOCIATION (NEMA)

NEMA MG 1 (2018) Motors and Generators

NATIONAL FIRE PROTECTION ASSOCIATION (NFPA)

NFPA 30 (2018) Flammable and Combustible Liquids Code

NFPA 70 (2020; ERTA 20-1 2020; ERTA 20-2 2020; TIA

20-1; TIA 20-2; TIA 20-3; TIA 20-4)

National Electrical Code

NORTH ATLANTIC TREATY ORGANIZATION (NATO)

AFLP-3747 (2013; Rev 9) Guide Specifications (Minimum Quality Standards) for Aviation Turbine Fuels (F-24, F-27, F-34, F-35, F-37, F-40 And F-44)

U.S. DEPARTMENT OF DEFENSE (DOD)

MIL-DTL-5624 (2016; Rev W) Turbine Fuel, Aviation, Grades JP-4 and JP-5

MIL-DTL-83133 (2015; Rev J) Turbine Fuels, Aviation, Kerosene Type, JP-8 (NATO F-34), NATO F-35 and JP-8 + 100 (NATO F-37)

MIL-PRF-23236 (2009; Rev D) Coating Systems for Ship

SECTION 33 56 21.17 Page 8

Structures

U.S. NATIONAL ARCHIVES AND RECORDS ADMINISTRATION (NARA)

29 CFR 1910.23 (Nov 2016) Ladders

29 CFR 1910.25 Stairways

1.2 SUBMITTALS

NOTE: Revi ew Submi t t al Descr i pt i on ( SD) def i ni t i ons i n Sect i on 01 33 00 SUBMI TTAL PROCEDURES and edi t t he f ol l owi ng l i s t t o r ef l ect onl y t he submi t t al s r equi r ed f or t he pr oj ect .

The Gui de Speci f i cat i on t echni cal edi t or s have desi gnat ed t hose i t ems t hat r equi r e Gover nment appr oval , due t o t hei r compl exi t y or cr i t i cal i t y, wi t h a " G. " Gener al l y, ot her submi t t al i t ems can be r evi ewed by t he Cont r act or ' s Qual i t y Cont r ol Syst em. Onl y add a " G" t o an i t em, i f t he submi t t al i s suf f i c i ent l y i mpor t ant or compl ex i n cont ext of t he pr oj ect .

For submi t t al s r equi r i ng Gover nment appr oval on Ar my pr oj ect s, a code of up t o t hr ee char act er s wi t hi n t he submi t t al t ags may be used f ol l owi ng t he " G" desi gnat i on t o i ndi cat e t he appr ovi ng aut hor i t y.

Codes f or Ar my pr oj ect s usi ng t he Resi dent Management Syst em ( RMS) ar e: " AE" f or Ar chi t ect - Engi neer ; " DO" f or Di st r i ct Of f i ce ( Engi neer i ng Di v i s i on or ot her or gani zat i on i n t he Di st r i ct Of f i ce) ; " AO" f or Ar ea Of f i ce; " RO" f or Resi dent Of f i ce; and " PO" f or Pr oj ect Of f i ce. Codes f ol l owi ng t he " G" t ypi cal l y ar e not used f or Navy, Ai r For ce, and NASA pr oj ect s.

The " S" f ol l owi ng a submi t t al i t em i ndi cat es t hat t he submi t t al i s r equi r ed f or t he Sust ai nabi l i t y eNot ebook t o f ul f i l l f eder al l y mandat ed sust ai nabl e r equi r ement s i n accor dance wi t h Sect i on 01 33 29 SUSTAI NABI LI TY REPORTI NG. Locat e t he " S" submi t t al under t he SD number t hat best descr i bes t he submi t t al i t em.

Choose t he f i r st br acket ed i t em f or Navy, Ai r For ce and NASA pr oj ect s, or choose t he second br acket ed i t em f or Ar my pr oj ect s.

NOTE: I ncl ude emer gency vent i n SD- 03 and SD- 05 onl y on t anks smal l er t han 15. 24 met er s 50 f eet i n di amet er and wi t hout a f l oat i ng pan.

Government approval is required for submittals with a "G" designation;

submittals not having a "G" designation are [for Contractor Quality

SECTION 33 56 21.17 Page 9

Control approval.][for information only. When used, a designation following the "G" designation identifies the office that will review the submittal for the Government.] Submittals with an "S" are for inclusion in the Sustainability eNotebook, in conformance with Section 01 33 29 SUSTAINABILITY REPORTING. Submit the following in accordance with Section

01 33 00 SUBMITTAL PROCEDURES:

SD-01 Preconstruction Submittals

Copies of API Publications ; G[, [_____]]

Acknowledgement of API Std 650 ; G[, [_____]]

NACE Visual Comparator ; G[, [_____]]

Acknowledgement of Surface Finish Requirements ; G[, [_____]]

SD-02 Shop Drawings

Steel Tank ; G[, [_____]]

[ Tank Bottom Shimming and Grouting Plan ; G[, [_____]]

] Floating Pan ; G[, [_____]]

Overflow/Circulation Vents ; G[, [_____]]

Water Draw-Off System ; G[, [_____]]

Product Saver Tank ; G[, [_____]]

Sidestream Filtration System ; G[, [_____]]

Channel Mounting Pads ; G[, [_____]]

SD-03 Product Data

Structural Steel ; G[, [_____]]

Carbon Steel, Pipe Fittings, Flanges, Gaskets, and Bolting ; G[, Aluminum Piping ; G[, [_____]]

Aluminum Flanges ; G[, [_____]]

Gaskets for Manhole Covers, Stilling Well Flanges, and Roof Center Vent ; G[, [_____]]

[ Tank Bottom to Foundation Gasket ; G[, [_____]]

][ Tank Grout ; G[, [_____]]

][ Tank Shims ; G[, [_____]]

] Floating Pan ; G[, [_____]]

Sample Gauge Hatch ; G[, [_____]]

SECTION 33 56 21.17 Page 10

Floating Seal and Retrieval Winch ; G[, [_____]]

Mechanical Tape Level Gauge ; G[, [_____]]

Center Roof Vent ; G[, [_____]]

Stairway Step and Platform Tread Grating ; G[, [_____]]

Stairway Bolting ; G[, [_____]]

[ Emergency Vent ; G[, [_____]]

] Sidestream Filtration System ; G[, [_____]]

Antiseize Compound ; G[, [_____]]

SD-04 Samples

[ Tank Bottom to Foundation Gasket ; G[, [_____]]

] SD-05 Design Data

[ Emergency Ventilation Calculations ; G[, [_____]]

] Steel Tank Design ; G[, [_____]]

Floating Pan Design ; G[, [_____]]

SD-06 Test Reports

API Std 653 Inspection Reports; G[, [_____]]

Visual Examination of Vertical Shell-Seam Tack Welds

Visual Examination of Initial Pass of Internal Shell-to-Bottom Weld

Vacuum Box Testing of Internal Shell-to-Bottom Initial Weld Pass

Visual Examination of Completed Internal and External Shell-to-Bottom Welds

Radiographic Examination of Shell Butt Weld

Visual Examination of Shell Butt Welds

Visual Examination of Fillet Welds

Visual Examination of Tank Bottom Plates

Vacuum Box Testing of Tank Bottom Fillet Weld

Pneumatic Tests of Reinforcing Plates

Hydrostatic Testing

Approval of Professional Engineer in Lieu of Hydrostatic Testing

Shell Settlement Measurements Taken Before, During, and After Hydrostatic Testing

SECTION 33 56 21.17 Page 11

Internal Bottom Elevation Readings Taken Before and After Hydrostatic Testing

Shell Plumbness

Shell Roundness

Maximum Local Deviations, Shell

Tightness Test Records

Tank Bottom Puddle Test

Roof Puddle Test

Stilling Well Plumbness Test

SD-07 Certificates

Qualifications of Tank Erector

Welding Procedure Specifications (WPS)

Welding Procedure Qualification Records (PQRs)

Welder Performance Qualification Records (WPQ)

Tank Calibration Experience

Qualifications of Floating Pan Manufacturer

Weld Inspector Certification

NDE Personnel Certification

Qualifications of Testing Agency

Qualifications of API Std 653 Inspector

SD-09 Manufacturer's Field Reports

Mill Test Reports ; G[, [_____]]

Impact Test Data ; G[, [_____]]

Floating Pan Prototype Fire Test ; G[, [_____]]

SD-10 Operation and Maintenance Data

API Std 653 Inspection Reports , Data Package 2

Tank Calibration Table , Data Package 2

Electronic Calibration Table , Data Package 2

Maintenance Instructions , Data Package 2

Operator Instructions , Data Package 2

SECTION 33 56 21.17 Page 12

Submit in accordance with Section 01 78 23 OPERATION AND

MAINTENANCE DATA.

1.3 COPIES OF API PUBLICATIONS

Provide four copies of API RP 2009 , API Std 650 , and API MPMS 2.2A , API MPMS 2.2B , API MPMS 2.2C and API MPMS 2.2D to the Contracting Officer.

1.4 RELATED REQUIREMENTS

NOTE: I f f uel used i s not l i s t ed i n t hi s sect i on, consul t UFC 3- 460- 01, " Desi gn: Pet r ol eum Fuel Faci l i t i es" , Chapt er 2- 2 f or ASTM or MI L- DTL speci f i cat i on number , and l i s t bel ow.

I n t he el ect r i cal desi gn, i ncl ude t he f ol l owi ng:

pot t ed expl osi on pr oof MI cabl e f or connect i ons t o el ect r i c act uat or s i n t he di ke ar ea; t ank gr oundi ng syst em; condui t r out i ng such t hat i t cannot be st epped upon; suppor t i ng condui t on cast - i n- pl ace concr et e suppor t s i nsi de t he secondar y cont ai nment ar ea; consi der i ng condui t suppor t s dur i ng desi gn and addr essi ng abovegr ound and bel owgr ound condui t and l ocat i ons of boxes, l i ght s, et c.

Materials, design, fabrication, welding, erection, testing, and appurtenances must be in accordance with API Std 650 and as indicated and specified herein. Submit acknowledgement of API Std 650 as required standard. Product[s] to be stored in the tank [is][are] [_____] [ MIL-DTL-5624 Grade JP-4][ and ][ MIL-DTL-5624 Grade JP-5][ and ][ MIL-DTL-83133 JP-8][ and ][ AFLP-3747 Jet A F-24][ and ][ ASTM D4814 Mogas(F-46)][ and ][Diesel (F-76)]. Section [ 23 03 00.00 20 BASIC

MECHANICAL MATERIALS AND METHODS] [05 50 13 MISCELLANEOUS METAL

FABRICATIONS] and Section 26 20 00 INTERIOR DISTRIBUTION SYSTEM apply to this section except as specified otherwise.

1.5 DESIGN REQUIREMENTS

NOTE: I nser t desi gn i nf or mat i on f or l oads on t anks as gi ven i n UFC 3- 460- 01, " Desi gn: Pet r ol eum Fuel Faci l i t i es" . I nser t t he s i ze and vol ume of t he t ank. Edi t as r equi r ed f or pr oj ect . Coor di nat e wi t h st r uct ur al dr awi ng not es.

Design tank [repairs] to resist the[following] loads and forces[:][listed on the structural drawings and for the following:]

[ a. Wind: [_____] kilometers per hour [_____] mph .

] b. Design specify gravity of liquid is [_____] to [_____].

c. Design shell and nozzles for a design liquid level equal to overflow condition.

SECTION 33 56 21.17 Page 13

1.5.1 Seismic Design Requirements

Seismic loads and forces must be in accordance with API Std 650 Appendix E.

1.5.1.1 Columns

NOTE: Al l ow onl y one r oof suppor t col umn i n f l oat i ng r oof t anks of 80, 000 bbl s and l ar ger .

Do not al l ow r oof suppor t col umns i n f l oat i ng pan t anks smal l er t han 80, 000 bbl s nomi nal s i ze.

[Provide tank with no more than one roof support column. Design roof support columns to resist the forces caused by sloshing of the liquid contents during a seismic event.] [Provide exterior epoxy coated roof support column.] [Roof support columns are not allowed.]

1.5.1.2 Shell Height

Shell height must provide clearance between the pan at full overflow (bottom of pan at top of overflow) and the fixed roof that includes an allowance of at least 300 mm 12 inches for sloshing due to seismic event.

1.5.2 Tank Nozzles

Design tank nozzles to accommodate external piping loads in accordance with API Std 650 .

1.5.3 Tank Roof

Provide tank roof plates, lap welded with inner plates on top, and at least 6 mm 1/4 inch thick (includes 1.5 mm 1/16 inch corrosion allowance).

Support beams must be designed so as to minimize uncoatable surfaces.

Provide solid web or HSS (Hollow Structural Section) type roof beams.

Open web trusses are not permitted. Do not attach roof support members to the roof plate. Provide a roof with every part having a slope of 1-1/2:12.

NOTE: On t anks 15. 24 m 50 f eet or mor e i n di amet er t hat do not have a f l oat i ng pan, i ncl ude t he f i r st br acket ed par agr aph. On t anks l ess t han 15. 24 m 50 feet i n di amet er t hat do not have a f l oat i ng pan, i ncl ude t he second br acket ed par agr aph. On t anks wi t h f l oat i ng pans, del et e bot h par agr aphs.

[ 1.5.3.1 Emergency Ventilation

Provide emergency ventilation by a frangible roof design. The weld attaching the roof plate to the top angle must not be greater than 5 mm 3/16 inch .

][ 1.5.3.2 Emergency Vent Devices

Submit emergency ventilation calculations for selection of emergency vents.

SECTION 33 56 21.17 Page 14

] 1.5.4 Corrosion Allowance

Provide corrosion allowance of 1.6 mm 1/16 inch in thickness of steel for the interior of the shell, roof, and interior structural members.

1.5.5 Design Metal Temperature

NOTE: I nser t desi gn met al t emper at ur e f or l ocat i ons not cover ed by API St d 650. Obt ai n l ow t emper at ur e f r om weat her dat a. Det er mi ne t he desi gn met al t emper at ur e i n accor dance wi t h API St d 650.

API Std 650 [[_____] degrees C] [[_____] degrees F] .

1.5.6 Tank Bottom

Tank bottom [and annular ring] must be as indicated. Bottom plates must be lap welded with inner plates on bottom.

1.6 QUALIFICATIONS OF TANK ERECTOR

NOTE: For NAVFAC pr oj ect s, i ncl ude t he f ol l owi ng r equi r ement i n t he Pr oj ect I nf or mat i on For m ( PI F) .

The Contractor must be regularly engaged in the erection of API Std 650 tanks. The Contractor must certify successful completion of at least 12 field erected API Std 650 aboveground tanks in the past three years. The information provided in the Contractor's certification must include the date of the notice to proceed, date of completion, location of tank, Owner, Owner's point of contact, tank size, configuration (e.g. vertical AST, horizontal AST), product stored, and material of construction.

1.6.1 Welding Qualifications

Submit Welding Procedure Specifications (WPS) , Welding Procedure Qualification Records (PQRs) , and Welder Performance Qualification Records (WPQ). Qualify all welders on site. Complete all WPQs specifically for this project. Give the Contracting Officer notice and opportunity to witness each of the welder performance qualification tests 24 hours in advance of the performance of each of the tests.

1.7 TANK CALIBRATION EXPERIENCE

Perform calibration of the tank using a qualified organization that can certify to having performed successful and accurate calibration of at least eight tanks of comparable type and size within the last two years.

Submit certified data on tank calibration experience .

1.8 QUALIFICATIONS OF FLOATING PAN MANUFACTURER

NOTE: For NAVFAC pr oj ect s i ncl ude t he f ol l owi ng r equi r ement i n t he Pr oj ect I nf or mat i on For m ( PI F) .

SECTION 33 56 21.17 Page 15

The floating pan manufacturer must be regularly engaged in the manufacture and installation of floating pans in API Std 650 tanks. The manufacturer must certify successful manufacture and installation by the manufacturer of at least 10 floating pans of the type specified in field erected API Std 650 aboveground tanks within the past five years. A minimum of five of those installations must have been performed on US military installations. The information provided in the manufacturer's certification must include the date of the notice to proceed, date of completion, location of tank, customer project number or construction contract number, owner's point of contact, tank size, and construction type.

1.9 QUALITY ASSURANCE

1.9.1 Delivery and Storage Handling

Handle, store, and protect system components and materials to prevent damage before and during installation in accordance with the manufacturer's recommendations, and as approved by the Contracting Officer. Replace damaged or defective items.

1.9.2 Steel Tank Drawing Requirements

NOTE: See UFC 1- 300- 09N, " Desi gn Pr ocedur es" f or pr of essi onal engi neer r equi r ement s.

Drawings for the steel tank and floating pan must be prepared, sealed, signed, and dated by a registered professional engineer. Include erection diagrams and detail drawings of the tank roof, shell plates, wind girders, openings, and connections for fittings and appurtenances. The steel tank drawings must include the following:

a. Tank erection details showing dimensions, sizes, thickness, gages, materials, finishes, and erection procedures.

b. Tank component details to include as a minimum:

(1) Floating pan (including details of support legs, manways, periphery seals, joint attachments, anti-rotation cables, and grounding cables).

(2) Locations of floating pan pressure/vacuum vents and rim seals.

(3) Internal pipe and fittings, including supports and bearing plates.

[ (4) Tank Bottom to foundation gasket.

][ (5) Tank Bottom Shimming and Grouting plan and details.

(6) Tank Anchors.

(7) Location of alarm and control switches.

(8) Location of nozzles including nozzles for gauges and alarms.

(9) Roof support system details.

SECTION 33 56 21.17 Page 16

(10) Roof manhole.

(11) Circulation vents/inspection hatches.

(12) Center roof vent.

(13) Overflow port/circulation vent.

(14) Shell manholes and davits.

(15) Stairway, including replaceable stair tread installation and platforms.

(16) Channel mounting pads.

(17) Tank Data Plate Plan and Information.

(18) Shell to bottom connection.

(19) Tank bottom to ringwall interface.

(20) Stilling wells.

(21) Grounding lugs.

(22) Sump.

(23) Scaffold Cable Support.

(24) Shell circulation vents.

1.9.3 Data Requirements

Calculations for the steel tank design and floating pan design must be prepared by a State registered Professional Engineer. Include calculations for the buoyancy of the floating pan and the structural stability of the floating pan when resting on the support legs. Steel tank design calculations must include calculations for the design of the shell, as well as calculations for the design of the roof [frangible roof connection], [tank anchorage] [emergency vent] and roof support.

1.9.4 Weld Inspector Certification

Contractor must arrange for the services of an independent (impartial third party not a part or affiliated with Contractor or subcontractor principal or subsidiary businesses) weld inspector certified by the American Welding Society to oversee all weld tests and examinations required by API Std 650 .

1.9.5 Test Reports

Test Reports must consist of the following:

a. Records made by the AWS certified inspector for all duties performed per paragraph 4.2 of AWS QC1.

b. All Nondestructive Examination (NDE) (e.g.; radiograph, ultrasound, etc) reports with unique weld ID for each weld tested.

SECTION 33 56 21.17 Page 17

c. "Weld Map". These maps/drawings correlate the shop drawings submitted to the NDE reports. The NDE report that shows a weld number as acceptable is correlated with weld number on the drawings.

Provide the location of each weld, what procedure was used, which welder made the weld, the results of the visual test, and the results of the NDE.

1.9.6 Inspection and NDE Personnel

All inspection and NDE personnel must be qualified in accordance with the following requirements. The Contractor must submit the qualifications of all the testing personnel that will perform all field tests for review by the Contracting Officer. The qualifications of all personnel on the job site that will perform welding inspections and NDE must be submitted for approval. All inspectors and NDE examiners must have a minimum of one-year experience inspecting the piping or plate material being used and five-years in military or commercial fueling systems or petroleum refineries, power generating plants, paper mills, or chemical process plants.

1.9.6.1 NDE Personnel Certification

A written procedure/quality assurance program for the training, examination, certification, control and administration of NDE personnel must be established. The procedures must be based on appropriate specific and general guidelines of training and experience recommended by ASNT SNT-TC-1A . Submit proof of compliance of nondestructive test examiners with API Std 650 including, but not limited to, examiners performing radiographic (RT), visual (VT), penetrant (PT), ultrasonic (UT), [and][or] magnetic particle (MT) testing.

1.9.6.2 Qualifications of Testing Agency

The testing agency, testing laboratory, technical consultant or contractor's approved quality assurance organization must meet the requirements of ASTM E329.

1.9.7 Qualifications of API Std 653 Inspector

Contractor must arrange for the services of an independent (impartial third party not a part or affiliated with Contractor or subcontractor principal or subsidiary businesses) API Std 653 inspector. API Std 653 Inspector must have a minimum of five years of experience. Submit copy of current certificate.

PART 2 PRODUCTS

2.1 MATERIALS

Conform to the following requirements except that materials not definitely specified must conform to API Std 650 . All materials must be carbon steel unless otherwise noted.

2.1.1 Materials for System Components, Pipe, and Fittings

NOTE: Unl ess ot her wi se speci f i ed: I n cor r osi ve envi r onment s ( such as near t he ocean or humi d l ocat i ons) sel ect t he f i r st opt i on; i n non- cor r osi ve

SECTION 33 56 21.17 Page 18 envi r onment s sel ect t he second opt i on.

a. [All piping and fittings outside the tank (except for the tank fill line, tank issue line, and tank low suction line) must be stainless steel. The tank fill line, tank issue line, and tank low suction line piping and fittings must be interior and exterior coated carbon steel. All valves (except DBB valves) and ball joints must be stainless steel. DBB valves must be as specified.] [All piping, and fittings 63 mm 2.5 inches and larger must be interior and exterior coated carbon steel. All piping and fittings 50 mm 2 inches and smaller must be stainless steel. All valves larger than 63 mm 2.5 inches must be carbon steel with stainless steel trim. All valves 50 mm 2 inches and smaller must be stainless steel. DBB valves must be as specified.]

b. All piping and fittings inside the tank must be exterior and interior epoxy coated carbon steel except for piping 50 mm 2 inches and smaller which must have an uncoated interior. Stilling well and ladder material must be as indicated.

c. Do not weld stainless steel to carbon steel, except where specifically indicated or specified.

d. If materials for system components are not specified, they must be stainless steel.

e. Provide stainless steel HLV float control chamber, pilot, level switch housings, and level switch probe holders.

2.2 STRUCTURAL STEEL

API Std 650 . Provide mill test reports for shell plates, shell nozzle reinforcing plates, shell insert plates, and all steel plate used in construction of shell penetrations. Provide impact test data when required by API Std 650 for the material group and thickness provided.

2.3 CARBON STEEL, PIPE FITTINGS, FLANGES, GASKETS, AND BOLTING

NOTE: Ensur e bol t i ng on i nt er i or of t ank i s st ai nl ess st eel .

Carbon steel, pipe fittings, flanges, gaskets, and bolting must be provided in accordance with Section 33 52 43.13 AVIATION FUEL PIPING or Section 33 52 40 FUEL SYSTEMS PIPING (NON-HYDRANT), except gaskets inside tank and on roof nozzles must be non-asbestos, fuel resistant composition, or preformed type. Flanges must be weld-neck type in accordance with ASME B16.5 . Threaded fittings must conform to ASME B16.11 (Class 3000), and butt-welded fittings must conform to ASME B16.9 .

2.4 STAINLESS STEEL PIPE, FITTINGS, FLANGES, GASKETS, AND BOLTING

Stainless steel pipe, pipe fittings, flanges, gaskets, and bolting must be provided in accordance with Section 33 52 43.13 AVIATION FUEL PIPING or Section 33 52 40 FUEL SYSTEMS PIPING (NON-HYDRANT) and API Std 650 , except: flanges must be weld-neck type in accordance with ASME B16.5 , threaded fittings must conform to ASME B16.11 (Class 3000), and

SECTION 33 56 21.17 Page 19 butt-welded fittings must conform to ASME B16.9 .

2.5 ALUMINUM PIPING FOR STILLING WELLS

Aluminum pipe must be ASTM B241/B241M , alloy 6061-T6, Schedule 40 for pipe sizes 50 mm 2 inches through 300 mm 12 inches ; Schedule 80 for pipe sizes 50 mm 2 inches and smaller.

2.6 BOLTING AND ALUMINUM FLANGES FOR STILLING WELLS

Aluminum flanges must be ASME B16.5 , Class 150 or Class 300 where indicated, Flat Face Type, except aluminum must conform to ASTM B247M ASTM B247, alloy 6061-T6 or alloy 356-T6. Aluminum flanges may be welding neck or slip-on type. Provide bolting in accordance with Section 33 52 43.13 AVIATION FUEL PIPING or Section 33 52 40 FUEL SYSTEMS PIPING (NON-HYDRANT). Provide electrical isolation for separation of dissimilar metals.

2.7 WELDING FOR ALUMINUM PIPING

2.7.1 Process for Aluminum

ASME B31.3 , Gas Tungsten Arc Welding (GTAW) Process or Gas Metal Arc Welding (GMAW) Process. Backing rings are not permitted.

2.7.2 Aluminum Welding Electrodes and Rods

AWS A5.10/A5.10M , ER5356 electrodes.

2.8 BOLTING FOR SHELL MANHOLE COVERS

Bolting for shell manholes must be in accordance with Section 33 52 43.13 AVIATION FUEL PIPING or Section 33 52 40 FUEL SYSTEMS PIPING (NON-HYDRANT).

2.9 GASKETS FOR MANHOLE COVERS, STILLING WELL FLANGES, AND ROOF CENTER VENT

Provide composition asbestos-free, fuel and fire-resistant gaskets for shell manhole covers, stilling well flanges, and roof center vent.

2.10 TANK BOTTOM TO FOUNDATION SEAL

NOTE: I ncl ude t he f i r st br acket ed par agr aph f or sel f anchor ed t anks. I ncl ude t he second br acket par agr aph f or anchor ed t anks.

[ 2.10.1 Tank Bottom to Foundation Gasket - Self Anchored Tanks

Tank bottom to foundation gasket for self anchored tanks must be 12 mm 1/2- inch thick, nonporous Buna-N with a Shore A Durometer Hardness of not more than 40 and a rated tensile strength of at least 10,300 kPa 1,500 psi .

The inside and outside edge of the gasket must be cut on a radius.

Provide gasket in segments at least 2.4 meters 8 feet long. Provide three samples of the tank bottom-to-foundation gasket material measuring 13 mm 1/2-inch by 75 mm 3 inches by 225 mm 9 inches .

SECTION 33 56 21.17 Page 20

][ 2.10.2 Tank Shims and Tank Grout - Anchored Tanks

Grout must be non-shrink type and consist of 1 part Portland cement to 1-1/2 parts sand by volume. Do not use calcium chloride admixtures. When the ambient temperature is expected to fall below 16 degrees C 60 degrees F within the next 48 hours, the cement used must be "high early strength" type.

NOTE: I ncl ude t he f ol l owi ng i n t he pr oduct s sect i on of t he ext er i or coat i ng speci f i cat i on and r equi r e pr oduct dat a submi t t al :

" X. X. X. Tank Bot t om t o Foundat i on Seal ant

The t ank bot t om per i met er t o f oundat i on r i ng wal l mast i c seal ant must be l i qui d appl i ed non- saggi ng, t wo par t pol ysul f i de r ubber j oi nt seal ant composed of 100 per cent sol i ds, and conf or mi ng t o ASTM C920, Cl ass 25. The seal ant must be sui t abl e f or use on st eel , epoxy coat ed sur f aces and concr et e. The seal ant must be r at ed wi t h a Shor e A Har dness of not mor e t han 30, a mi ni mum t ensi l e st r engt h of 1, 000 kPa 150 psi , a mi ni mum el ongat i on of 100 per cent at 350kPa 50 psi wi t hout br eaki ng, and a mi ni mum el ongat i on of 200 per cent at 550 kPa 80 psi wi t hout br eaki ng. The seal ant must be r esi st ant t o j et f uel , sunl i ght , col d, and ozone wi t hout shr i nki ng;

and must have a r at ed l i f e expect ancy of at l east 15 year s. Use wi t h bond br eaker t ape r ecommended by t he manuf act ur er . "

] 2.11 INTERIOR PROTECTIVE COATING SYSTEM

NOTE: I n or der t o pr ot ect pr oduct qual i t y and t o ext end t he l i f e of t he t ank, t he pr escr i bed i nt er i or sur f aces of st eel pet r ol eum st or age t anks must be coat ed i n accor dance wi t h UFC 3- 460- 01, " DESI GN;

PETROLEUM FUEL FACI LI TI ES" .

NOTE: Ot her gui dance as t o i nt er i or sur f ace t r eat ment i s as f ol l ows:

1. Speci f y bar e i nt er i or met al sur f aces and coat i ng wi t h SAE- 30 wei ght oi l i f t he coat i ng i s t o be done at a l at er dat e. Uncoat ed sur f aces must be cl eaned of cont ami nant s, i ncl udi ng mi l l scal e. Del et e r ef er ence t o Sect i on 09 97 13. 15 LOW VOC POLYSULFI DE

I NTERI OR COATI NG OF WELDED STEEL PETROLEUM FUEL

TANKS i f not appl i cabl e.

2. I ncl ude i nst r uct i ons i n t he coat i ng speci f i cat i on t o seal al l uncoat abl e ar eas of t he r oof suppor t st r uct ur e by caul k i ng al l gaps and j oi nt s i n r oof beams i ncl udi ng bet ween coat ed beams and r oof pl at es. Pr obl ems can ar i se when t he r oof pl at es ar e wel ded i n cool er weat her and t he

SECTION 33 56 21.17 Page 21 under si de coat ed i n war mer sunny weat her as t he r oof pl at e expands and pul l s away f r om t he r oof r af t er s l eavi ng a gap t hat i s t oo l ar ge t o caul k. E. g. Roof pl at e on a 15 met er 50 f eet di amet er t ank wel ded i n wi nt er may l i f t at cent er i n t he summer by as much as 40 mm 1- 1/ 2 i nches. Consi der l ocal geogr aphi cal condi t i ons at t he t i me of const r uct i on when caul k i ng r oof suppor t beams, r oof pl at es et c. I t i s r ecommended f or l ocat i ons l i ke Seat t l e and Guam, t hat have mor e st abl e year - r ound t emper at ur es and condensation.

3. I ncl ude i nst r uct i ons i n coat i ng speci f i cat i on t o caul k t he under si de of r oof pl at e seams t hat ar e not wel ded on t he under si de.

[Section 09 97 13.15 LOW VOC POLYSULFIDE INTERIOR COATING OF WELDED STEEL PETROLEUM FUEL TANKS.] [Interior of the tank must be bare steel. Coat interior of tank with SAE 30 oil for temporary protection.]

2.12 EXTERIOR PROTECTIVE COATING SYSTEM

Section 09 97 13.27 EXTERIOR COATING OF STEEL STRUCTURES.

2.13 APPURTENANCES

2.13.1 Floating Pan Installation Hatch

Provide permanent floating pan installation hatch on the tank roof.

Provide with bolted cover and water tight gasket.

2.13.2 Floating Pan

The floating pan must be naturally buoyant by means of honeycomb cell aluminum sandwich panels, be suitable for operation with liquids having a specific gravity of 0.70, be internal to the tank, have full surface contact with the fuel, be equipped with a seal at each penetration, and meet the requirements of API Std 650 Appendix H. A rim must be provided around the floating pan periphery and extend a minimum of 150 mm 6 inches above the free liquid surface. The rim must contain turbulence and prevent fuel from splashing up onto the top surface of the floating pan.

2.13.2.1 Pan Integrity

The floating pan must support the following loading conditions without causing damage to the pan, sinking the pan, or allowing product to spill onto the top surface of the pan in the event the pan is punctured.

a. A uniform load of three times the weight of the pan.

NOTE: I ncl ude t he f i r st br acket ed sent ence f or t anks l ar ger t han 9144 mm 30 f eet i n di amet er , and t he second f or smal l er t anks.

[ b. A point load of 227 kg on a 93,000 sq mm 500 pounds on a one square foot area anywhere on the floating pan while it is floating or resting

SECTION 33 56 21.17 Page 22 on the legs.

][ c. A point load of 113 kg on a 93,000 sq mm 250 pounds on a one square foot area anywhere on the floating pan while it is floating or resting on the legs.

] 2.13.2.2 Floating Pan Prototype Fire Test

Perform a fire test on another floating pan design of the same manufacturer that is constructed from the same materials and joining method of the pan being proposed and that meets the floating pan specification in aviation turbine fuel or motor gasoline with a flash point of less than minus 7 degrees C 20 degrees F . Submit manufacturer's certification of fire test indicating the manufacturer's floating pan design has been successfully fire tested and that both of the following tests were successfully performed, without significant damage to the pan, sinking the pan or the fire spreading to the whole surface of the fuel.

a. Hole Fire: The test-floating pan must have a 300 mm 12 inch or larger diameter hole cut through it. After being lit, the fuel in the hole must burn for a minimum of 2 hours.

b. Rim Fire: After being lit, the fuel around the test rim section must burn for a minimum of 2 hours.

2.13.2.3 Joint Connections

Aluminum sandwich panels must be joined together by means of a gasketed joint that transmits loads without structural failure or leakage.

2.13.2.4 Aluminum Extrusions

Extrusions must be made from alloy 6063-T6 in accordance with ASTM B209M

ASTM B209.

2.13.2.5 Aluminum Sandwich Panels

Panels must be made from alloy 3003 H14, 3003 H16, 3105 H14, or 5010 H24 in accordance ASTM B209M ASTM B209. The skin of the panels must have a minimum thickness of 0.356 mm 0.014 inches . The core of the panels must be 25 mm one-inch aluminum honeycomb.

2.13.2.6 Support Legs

Floating pan must be provided with two position self-draining aluminum legs that are designed to support a uniform load of 600 Pa 12.5 pounds per square foot . Stainless steel support legs are not allowed. The legs must be tubular structural members at least 50 mm 2 inches in diameter and ride with the pan when the fuel level is above the high leg position. The low position must be as indicated and the high position must be 1950 mm 78 inches above the shell-to-bottom joint. The exact location and number of the support legs must be as recommended by the floating pan manufacturer.

Provide each support leg with a 63 mm 2.5 inch polytetrafluoroethylene (PTFE) foot securely fastened to the bottom end of the leg. The portion of the PTFE foot below the metal leg must be 25 mm one-inch thick. The PTFE foot must be slotted on one side to allow for drainage. The legs must be capable of allowing a person, standing on top of the floating pan while the tank is in service, to perform the following functions:

SECTION 33 56 21.17 Page 23

a. Change from the high to the low position.

b. Change from the low to the high position.

c. Completely remove the legs.

d. Adjust the legs vertically a distance equal of plus or minus 75 mm 3 inches .

2.13.2.7 Periphery Seals

Periphery seals must be flexible wiper squeegee and made of closed cell cast urethane. The periphery seal must fit the space between the tank shell and the outer edge of the floating pan with two flexible seals, a primary and a secondary. The seals, primary and secondary as a unit, must accommodate a deviation between the path of the floating pan relative to the tank shell of an additional 100 mm 4 inches of compression and an additional extension of 50 mm 2 inches from its normal compressed position at any fluid level. The primary seal must be above the liquid level.

Foam filled coated-fabric seals must not be accepted. The secondary seal must be above the primary seal. Seals must be capable of being replaced during tank operations, be durable in the tank's environment, be abrasion resistant, and not discolor or contaminate the liquid stored in the tank.

Seals must be manufactured in the United States and must be provided in minimum continuous lengths of 8.54 meter 28 feet with no factory splices.

Seals must be compatible with avgas, fuel oil, gasoline/ethanol, gasoline/MTBE 80/20, gasoline (unleaded), aviation turbine fuels, kerosene, and sea water. The following tables list the required physical properties of periphery seals:

TABLE 1: PHYSICAL PROPERTIES OF PERIPHERY SEALS

Physical Properties Test Method Values

Maximum operating temperature Dynamic mechanical analysis per ASTM D4065

82 C 180 F (min)

Tensile strength ASTM D412 39130 kPa 5675 psi (min)

Elongation at break ASTM D412 640 percent (min)

Tear resistance (Die C) ASTM D624 61.30 N/mm 350 PLI (min)

Abrasion resistance Tabor, mg loss at 100 cycles per ASTM D3489

8 mg 0.00028 ounce (max)

Compression set ASTM D575A 25 percent (max)

TABLE 2: JET FUEL SOAK TEST PARAMETERS

Jet Fuel Soak Test 96 hrs. at 67.2 C 153 F per ASTM D471

Before Immersion After Immersion Percent Change

Tensile strength 37895 kPa 5496 psi 36440 kPa 5285 psi minus 3.8 percent (min)

SECTION 33 56 21.17 Page 24

TABLE 2: JET FUEL SOAK TEST PARAMETERS

Elongation at break 640 percent 729 percent plus 13.9 percent (min)

Hardness 73 Shore A 66 Shore A minus 7.0 percent (min)

Volume change - - plus 6.0 percent (max)

2.13.2.8 Penetrations

All penetrations must have a rim that extends a minimum of 150 mm 6 inches above the free liquid to contain product turbulence and prevent the tank product from splashing up onto the top surface of the floating pan.

NOTE: Revi ew Feder al , St at e, and l ocal r egul at i ons t o ensur e compl i ance wi t h ai r emi ssi on r egul at i ons.

Consi der t he s l ot t ed st i l l i ng wel l s i n t he r evi ew.

At l east one 900 mm 36 i nch di amet er manhol e must be pr ovi ded f or each f l oat i ng pan t o pr ovi de access t o t he t ank i nt er i or when t he f l oat i ng pan i s on i t s suppor t s and t he t ank i s empt y; pr ovi de t wo f or t anks l ar ger t han 50, 000 bbl .

2.13.2.9 Manhole

Provide [_____] 900 mm 36 inch floating pan manhole[s]. Manhole must have a clear inside diameter of at least 900 mm 36 inches . Manhole must have a rim that extends a minimum of 150 mm 6 inches above the free liquid to contain product turbulence and prevent the tank product from splashing up onto the top surface of the floating pan. The manhole cover must be equipped with a ground cable connected to the floating pan.

2.13.2.9.1 Pressure/Vacuum Vent

The pressure/vacuum (PV) vent must be sized by the internal floating pan manufacturer for the maximum fill rate of [_____] L/s gpm and the maximum withdrawal rate of [_____] L/s gpm . When the PV vent is in the open position, the float must hang from a strap.

2.13.2.10 Grounding Cables

Provide two or more 3 mm 1/8-inch diameter, stranded, extra-flexible, stainless steel, wire rope ground cables. Each cable must extend from the top of the floating pan to the fixed roof and must be long enough to accommodate the full travel of the pan. The exact location, number, and size of grounding cables must be as recommended by the floating pan manufacturer.

2.13.2.11 Anti-Rotation Cable

Provide 6 mm 1/4-inch diameter anti-rotation cables made of 304 stainless steel conforming to ASTM A492. Fittings for anti-rotation cables including cable clamps, pins, sockets, turnbuckles, U-bolts and nuts must be 304 stainless steel. Cable must be made taut by means of the turnbuckle. The exact location, number, and size of the anti-rotation cables must be as recommended by the floating pan manufacturer.

SECTION 33 56 21.17 Page 25

2.13.3 Sample Gauge Hatch

Provide sample gauge hatch on top of stilling well where indicated for…