AM-0002-W912HV21R0006 - APSI SPECS.pdf

APSI Fuel Distribution & Upgrade 20AF0002

SECTION 33 56 10

FACTORY-FABRICATED FUEL STORAGE TANKS

05/19

PART 1 GENERAL

1.1 SUMMARY

This section defines the requirements for factory-fabricated fuel storage tanks and testing requirements of the below-grad tank vault to satisfy UL 2245 requirements.

1.1.1 Related Sections

1.2 REFERENCES

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. Where relevant, Contractor may substitute comparable JIS/JASS standards for non-Japanese standards, as approved by the KO's representative. See attachment at the beginning of the specifications listing acceptable alternative Japanese Standards and the comparable American counterpart.

AMERICAN ASSOCIATION OF STATE HIGHWAY AND TRANSPORTATION OFFICIALS

(AASHTO)

AASHTO HB-17 (2002; Errata 2003; Errata 2005, 17th Edition) Standard Specifications for Highway Bridges

AMERICAN PETROLEUM INSTITUTE (API)

API MPMS 2.2E (2004; Errata 2009; R 2009) Petroleum and Liquid Petroleum Products - Calibration of Horizontal Cylindrical Tanks - Part 1:

Manual Methods

API RP 540 (1999; R 2004) Electrical Installations in Petroleum Processing Plants

API RP 2003 (2015; 8th Ed) Protection Against Ignitions Arising out of Static, Lightning, and Stray Currents

ASTM INTERNATIONAL (ASTM)

ASTM A27/A27M (2017) Standard Specification for Steel Castings, Carbon, for General Application

ASTM A193/A193M (2017) Standard Specification for Alloy-Steel and Stainless Steel Bolting Materials for High-Temperature Service and Other Special Purpose Applications

ASTM A194/A194M (2018) Standard Specification for Carbon

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W912HV-21-R-0006 (AM-0002)

Steel, Alloy Steel, and Stainless Steel Nuts for Bolts for High-Pressure or High-Temperature Service, or Both

ASTM A307 (2014; E 2017) Standard Specification for Carbon Steel Bolts, Studs, and Threaded Rod 60 000 PSI Tensile Strength

ASTM A563 (2015) Standard Specification for Carbon and Alloy Steel Nuts

ASTM D3308 (2012; R 2017) Standard Specification for PTFE Resin Skived Tape

ASTM F844 (2007a; R 2013) Washers, Steel, Plain (Flat), Unhardened for General Use

INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS (IEEE)

IEEE 142 (2007; Errata 2014) Recommended Practice for Grounding of Industrial and Commercial Power Systems - IEEE Green Book

IEEE 1100 (2005) Emerald Book IEEE Recommended Practice for Powering and Grounding Electronic Equipment

JAPANESE STANDARDS ASSOCIATION (JSA)

JIS B 1256 (2017) Plain Washers

JIS G 4107 (2015) Alloy Steel Bolting Materials for High Temperature Service

JIS G 4303 (2017) Stainless Steel Bars

NATIONAL FIRE PROTECTION ASSOCIATION (NFPA)

NFPA 30 (2018) Flammable and Combustible Liquids Code

NFPA 30A (2018) Code for Motor Fuel Dispensing Facilities and Repair Garages

NFPA 31 (2016) Standard for the Installation of Oil-Burning Equipment

NFPA 70 (2017; ERTA 1-2 2017; TIA 17-1; TIA 17-2;

TIA 17-3; TIA 17-4; TIA 17-5; TIA 17-6;

TIA 17-7; TIA 17-8; TIA 17-9; TIA 17-10;

TIA 17-11; TIA 17-12; TIA 17-13; TIA

17-14; TIA 17-15; TIA 17-16; TIA 17-17 )

National Electrical Code

NFPA 77 (2014) Recommended Practice on Static Electricity

NFPA 407 (2017) Standard for Aircraft Fuel Servicing

SECTION 33 56 10 Page 2

NFPA 704 (2017) Standard System for the Identification of the Hazards of Materials for Emergency Response

NFPA 780 (2017) Standard for the Installation of Lightning Protection Systems

STEEL TANK INSTITUTE (STI)

STI 020-50-1000 (2010) ACT-100 Specification for External Corrosion Protection of FRP Composite Steel USTs

STI 700-50-5007 (2010) Installation Instructions for Shop Fabricated Aboveground Tanks for Flammable, Combustible Liquids

STI SP001 (2018, 6th Ed) SP001 Standard for The Inspection of Aboveground Storage Tanks

U.S. DEPARTMENT OF DEFENSE (DOD)

MIL-STD-161 (2005; Rev G; Notice 1 2010) Identification Methods for Bulk Petroleum Products Systems Including Hydrocarbon Missile Fuels

UNDERWRITERS LABORATORIES (UL)

UL 142 (2006; Reprint Jul 2013) Steel Aboveground Tanks for Flammable and Combustible Liquids

UL 1746 (2007; Reprint Dec 2014) External Corrosion Protection Systems for Steel Underground Storage Tanks

UL 2245 (2006, 2nd Ed) Below-Grade Vaults for Flammable Liquid Storage Tanks

1.3 ADMINISTRATIVE REQUIREMENTS

1.3.1 UL 2245 Below-Grade Tank Vault Testing Plan

The Contractor must submit a detailed written UL 2245 Test Procedures Plan for testing of the below-grade tank vaults in accordance with the requirements specified in UL 2245 . The plan must specify a detailed plan incorporating in a sequential manner all worked specified in paragraph

3.2.1. Submit the plan for approval 60 days prior to performing the vault tests. The performance testing specified herein shall be deemed to satisfy UL 2245 . Refer to structural drawings for additional information.

1.4 SUBMITTALS

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

submittals not having a "G" designation are for Contractor Quality Control approval. Submit the following in accordance with Section 01 33 00

SUBMITTAL PROCEDURES:

SD-01 Preconstruction Submittals

SECTION 33 56 10 Page 3

Ul 2245 Test Procedures Plan

SD-02 Shop Drawings

Grounding and Bonding

SD-03 Product Data

Aboveground Storage Tank (Single Wall Steel); G

Tank Protective Coatings; G

Pressure/Vacuum Vent; G

Emergency Vent; G

Tank Gauges; G

SD-06 Test Reports

UL 2245 Test Results; G

Aboveground Storage Tank Tightness Tests; G

Tank Manufacturer's Tests

Tank Fill Tests

Tank Inspection Reports; G

SD-07 Certificates

Contractor Qualifications; G

Manufacturer's Certification; G

Permitting

Registration

Licensed Personnel

Demonstrations

STI SP001 Inspector's Certification; G

SD-08 Manufacturer's Instructions

Aboveground Storage Tank

Tank Gauges

SD-10 Operation and Maintenance Data

Aboveground Storage Tank; G

Tank Gauges; G

SECTION 33 56 10 Page 4

1.5 QUALITY ASSURANCE

1.5.1 Contractor Qualifications

Each installation Contractor must have successfully completed at least 5 projects of the same scope, and the same size or larger within the last 3 years and demonstrated specific installation experience in regard to the specific system installation to be performed. Each installation Contractor must have taken, if applicable, manufacturer's training courses on the installation of storage tanks and must meet all applicable Japanese licensing requirements. If applicable, Japanese certified installers must be provided by the Contractor. Installers must also be trained and certified by the manufacturer to install the equipment and materials being installed and must be STI certified. Installers must submit certification from the manufacturer. Submit a letter listing prior projects, the date of construction, a point of contact for each prior project, the scope of work of each prior project, and a detailed list of work performed. The letter must also provide evidence of prior manufacturer's training, state licensing, and other related information.

1.5.2 Regulatory Requirements

1.5.2.1 Permitting

Obtain necessary permits in conjunction with the installation of storage tanks as required by federal, state, or local authority.

1.5.2.2 Registration

Obtain and complete all tank registration forms required by federal, state, and local authorities. Submit all completed tank registration forms within 30 days after contract award to the Contracting Officer. The Contracting Officer will ensure the Base Environmental staff for the DoD Installation submits the forms to the proper regulatory agencies.

1.5.2.3 Licensed Personnel

Tank installers must be licensed/certified when required by the Government of Japan.

1.6 DELIVERY, STORAGE, AND 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, upon recommendation by Base Environmental for the DoD Installation. Replace damaged or defective items.

1.7 PROJECT/SITE CONDITIONS

Exposed moving parts, parts that produce high operating temperatures and pressures, parts that may be electrically energized, and parts that may be a hazard to operating personnel must be insulated, fully enclosed, guarded, or fitted with other types of safety devices. Install safety devices so that proper operation of equipment is not impaired.

1.8 WARRANTY

All factory-fabricated storage tanks must come with a mi ni mum of 1- year

SECTION 33 56 10 Page 5

W912HV-21-R-0006 (AM-0002)

j2ee9gsg Line manuf act ur er ' s war r ant y, st ar t i ng f r om t he dat e of pr oj ect compl et i on, t o pr ot ect agai nst mat er i al and wor kmanshi p def ect s. manufacturer's warranty of a minimum period of 30 years . All warranty paperwork will be completed and submitted by Contractor to both the tank and system component manufacturers, the Contracting Officer , and the Base Environmental for the DoD Installation . This includes all applicable completed manufacturers' equipment installation checklists.

PART 2 PRODUCTS

2.1 ELECTRICAL WORK

Provide controllers, integral disconnects, contactors, controls, and control wiring with their respective pieces of system components. Provide electrical system components, including motors and wiring, as specified in Section 26 20 00 INTERIOR DISTRIBUTION SYSTEM. Any wiring required for the operation specified herein, but not shown on the electrical plans, must be provided under this section in accordance with Section 26 20 00

INTERIOR DISTRIBUTION SYSTEM.

2.1.1 Grounding and Bonding

Grounding and bonding must be in accordance with NFPA 70 , NFPA 77 , NFPA 407 , NFPA 780 , API RP 540 , API RP 2003 , IEEE 142 , and IEEE 1100 . Provide jumpers to overcome the insulating effects of gaskets, paints, or nonmetallic components.

2.2 MATERIALS AND SYSTEM COMPONENTS

Provide materials and system components that are standard products of a manufacturer regularly engaged in the manufacturing of such products, that are of a similar material, design and workmanship. Provide materials and system components that have been in satisfactory commercial or industrial use for a minimum 3 years prior to bid opening. The 3 year period must include applications of the system components and materials under similar circumstances and of similar size. Provide materials and system components that have been for sale on the commercial market through advertisements, manufacturers' catalogs, or brochures during the 3 year period.

Internal parts and components of system components, piping, piping components, and valves that could be exposed to fuel during system operation must not be constructed of zinc coated (galvanized) metal, brass, bronze, or other copper alloys. Do not install cast iron bodied valves in piping systems that could be exposed to fuel during system operation.

2.3 NAMEPLATES

Attach nameplates to all specified system components defined herein. List on each nameplate the manufacturer's name, address, contract number, component type or style, model or serial number, catalog number, capacity or size, and the system that is controlled. Construct plates of anodized aluminum or stainless steel. Install nameplates in prominent locations with nonferrous screws, nonferrous bolts, or permanent adhesive. Minimum size of nameplates must be 25 by 65 mm. Provide manufacturer's storage tank nameplates as required. Lettering must be the normal block style with a minimum 6 mm height. Accurately align all lettering on nameplates. Key the nameplates to a chart and schedule for each system.

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W912HV-21-R-0006 (AM-0002)

j2ee9gsg Line

Frame charts and schedule under glass, and locate where directed near each system. Furnish two copies of each chart and schedule. Each nameplate description must identify its function.

2.4 ABOVEGROUND STORAGE TANK

2.4.1 Aboveground Storage Tank (Single Wall Steel)

Provide a factory-welded, single wall steel tank manufactured to UL 142 and equipped to comply with NFPA 30 for use as a flammable or combustible liquid storage tank. Tank must be designed and manufactured for a horizontal cylindrical installation. Tank must be mounted on the tank manufacturer's standard UL listed tank saddles that elevates the tank above the underlying concrete vault floor a maximum of 305 mm. Tank assembly must have lifting lugs that allow tank relocation.

2.5 TANK PROTECTIVE COATINGS

2.5.1 Interior Surfaces

Coat 100 percent of a metal tank's interior surfaces including all metal piping and metal appurtenances as specified in Section 09 97 13.15 LOW VOC

POLYSULFIDE INTERIOR COATING OF WELDED STEEL PETROLEUM FUEL TANKS.

2.5.2 Exterior Surfaces, Aboveground Tanks

Protect the exterior surfaces of each aboveground tank as specified in Section 09 97 13.27 EXTERIOR COATING OF STEEL STRUCTURES.

2.5.3 Tank Labeling

Tank must be labelled with the following information at a minimum:

a. Product Stored and Tank Capacity (Per MIL-STD-161 ).

b. Tank Number and Facility Number.

c. NFPA 704 Diamond Hazmat Label.

2.6 TANK COMPONENTS

2.6.1 Tank Manhole

Tank manholes must have an internal diameter of 900 mm. Provide each manhole with a matching flanged watertight manhole cover. Manhole covers must be UL listed, be constructed of pressed or mild steel, and include a UL listed gasket.

2.6.2 Tank Piping Penetrations

Provide a welded-in-place double tapered National Pipe Thread (NPT) coupling or flanged pipe nozzle, as indicated on the drawings, for each tank piping connection. All unused or spare tank piping penetrations must be sealed with steel plugs.

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2.6.3 Tank Striker/Impact Plates

Provide an interior striker/impact plate under each tank manhole and pipe connection. Each plate must be a minimum of 6 mm in thickness, be larger in diameter than the tank penetration, fit the curvature of the tank bottom, and be completely coated in the same fashion as the interior tank bottom coating. Each plate must be welded to the tank bottom at the factory (full circumference connection). The welds must be non-destructive tested using the appropriate means.

2.6.4 Tank Venting

2.6.4.1 Pressure/Vacuum Vent

Tank vent outlet must be equipped with pressure-vacuum breather vent, aluminum construction with weather hood and with fluoroelastomer (FKM, Viton) pallet seat inserts, high density screens, stainless steel internals, with pressure relief setting, vacuum relief setting, and venting/vacuum capacity as indicated on drawings.

2.6.4.2 Emergency Vent

Vent must be the normally-closed, UL listed type that vents outward and upward. Vent must conform with NFPA 30 and UL 142 and must be sized by the tank manufacturer. Emergency vent must be of aluminum, carbon steel, stainless steel or cast iron construction with Viton or Buna N seat material. Sealing structure must be of a type such that the vent is vapor-tight when closed. Provide vent with the standard cubic feet per hour (SCFH) rating permanently labeled on the vent's exterior.

2.7 TANK GAUGES

2.7.1 Tank Strapping Table

Furnish 2 API MPMS 2.2E certified strapping tables (calibration charts) for each tank. One of the tables must indicate the liquid contents in L for each 1 mm of tank depth and the other in gallons for 1/16-inch of tank depth. Strapping table volumes for all tanks 19,000 L and larger must be determined using physical measurements and not calculated values.

For each tank, provide an electronic media file of each strapping table.

For tanks larger than 19,000 L tank strapping must be performed after installation at the site.

2.7.2 Mechanical Clock Gauge

Gauge must be the level sensing, mechanically actuated type that provides the tank level readout in a sealed glass cap contained in a gauge box.

Gauge must be accurate to plus or minus 6 mm and must measure the liquid level over the full range of a tank's height. Gauge must have vapor tight seals to prevent condensation from fogging the viewing glass.

2.7.3 Automatic Tank Gauge System (ATG)

Gauge system must be the magnetostrictive-type that can continuously monitor a tank's usable liquid level storage capacity. The system must provide a digital readout of a tank's liquid level in terms of both mm and L and inches and gallons. The system must be accurate to plus or minus 2 mm and 1/16 inch. Construct system components to be chemically compatible with the fuel to be handled. For each tank monitored, provide a sending

SECTION 33 56 10 Page 8 unit that transmits the digital readout from a tank to the electronic monitoring/alarm panel defined in Section 33 58 00 LEAK DETECTION FOR

FUELING SYSTEM.

2.8 ACCESSORIES

2.8.1 Concrete Anchor Bolts

Concrete anchors must conform to ASTM A307, Grade C, hot-dipped galvanized, or JIS G 4051 S25C or S28C..

2.8.2 Bolts and Studs

Carbon steel bolts and studs must conform to ASTM A307, Grade B, hot-dipped galvanized or JIS G 4107 Grade SNB7. Stainless steel bolts and studs that conform to ASTM A193/A193M , Grade 8 or JIS G 4303 Grade SUS304.

2.8.3 Nuts

Carbon steel nuts must conform to ASTM A563, Grade A, hex style, hot-dipped galvanized or JIS B 1256 . Stainless steel nuts must conform to ASTM A194/A194M , Grade 8 or JIS B 1256 .

2.8.4 Washers

Provide flat circular washers under each bolt head and each nut. Washer materials must be the same as the connecting bolt and nut. Carbon steel washers must conform to ASTM F844, hot-dipped galvanized. Stainless steel washers must conform to ASTM A194/A194M , Grade 8.

2.8.5 Polytetrafluoroethylene (PTFE) Tape

Tape must conform to ASTM D3308.

2.8.6 Tank Vault Manhole Assembly

Round street manhole frames and covers must be the straight traffic type.

Frames and covers must be constructed of cast steel in accordance with ASTM A27/A27M, grade 60-30 as a minimum or a engineered lightweight laminate material. Covers must be the solid plate type with a checker pattern. Covers must form a watertight seal with the manhole frame to prevent surface water inflow into the tank vault. Frame and cover assembly must be rated to withstand H-20 highway loading as defined by

AASHTO HB-17.

PART 3 EXECUTION

3.1 INSTALLATION

Install work so that parts requiring periodic inspection, operation, maintenance, and repair are readily accessible. Handle storage tanks with extreme care to prevent damage during placement and install in accordance with the manufacturer's installation instructions and NFPA 30 , NFPA 30A, or NFPA 31 as applicable. Inspect the exterior surface of each tank for obvious visual damage prior to and during the placement of each storage tank. Repair surface damage to a storage tank according to manufacturer's requirements before proceeding with the system installation. Provide the termination of fill lines within a tank with an antisplash deflector.

Provide nylon dielectric bushings on pipe connections to a steel tank.

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3.1.1 Aboveground Storage Tank

Install aboveground storage tanks in accordance with STI 700-50-5007 (STI R912) except as modified herein.

3.1.1.1 Steel Aboveground Storage Tank Handling

Store, handle, and place externally coated steel tanks with care and in a manner that will minimize damage to the coating and will not reduce its protective value. Place coated tanks in position carefully and with a minimum amount of handling. Repair any damaged tank coating in accordance with the appropriate UL or STI standard ( UL 1746 , STI 020-50-1000 , or UL 58). Do not move the tank unless it is empty.

3.1.1.2 Steel Aboveground Tank Installation Procedures

Tanks should be secured to the associated tank pad per tank manufacturer's recommendations using fasteners installed through the tank saddle base plate.

3.1.2 System Components

Properly level, align, and secure system components in place in accordance with manufacturer's instructions. Provide supports for system components, appurtenances, and pipe as required. Install anchors, bolts, nuts, washers, and screws where required for securing the work in place. Sizes, types, and spacings of anchors and bolts not indicated or specified must be as required for proper installation.

3.2 FIELD QUALITY CONTROL

3.2.1 UL 2245 Below-Grade Tank Vault Tests

Tests shall be performed once the concrete structure has achieved its design strength and elastomeric waterproofing membrane has been applied and cured on wall surfaces as indicated on Structural Drawings. No soil backfill shall be placed for the duration of testing. Top and side penetrations for piping and access ways shall be temporarily sealed or blocked to achieve water-tight condition. The steel fuel tank shall be installed in placed with all anchors fully tightened. All testing must occur before internal tank coating is applied and before piping and components are installed inside of the tank vault with the steel tanks empty (no pumps and appurtenances installed inside of the tank). Submit UL 2245 Test Results for the following tests.

3.2.1.1 Buoyancy Test

With the vault concrete roof panels removed, flood each chamber of the concrete vault to maximum capacity for 1 hour. The steel tanks must be sealed during the buoyancy test to prevent water from entering the interior of the tanks. There must be no evidence of steel fuel tank uplifting or structural damage to the concrete vault during this test.

3.2.1.2 Hydrostatic Load Test

Perform hydrostatic load test immediately after the buoyancy test with the vault concrete roof panels removed. Fill the vault and steel tank with water for 24 hours. The exterior vault walls must be inspected during the

SECTION 33 56 10 Page 10 test. There must be no signs of structural damage (voids, cracks, spalls), no signs of leakage after thorough visual inspection of walls, and no sign of pooling water at the base of the excavation. Pump the water out of the steel tanks and vault and inspect interior concrete vault walls. There must be no signs of structural damage (voids, cracks, spalls). Clean and dry the steel tanks upon completion of hydrostatic load test.

3.2.1.3 External Pressure Test

With the vault concrete roof panels installed, fill the excavation pit up to grade with water and maintain fully submerged for 24 hours. The vault interior must be free of water and there must be no signs of leakage into the vault after thorough visual inspection. With the steel tank open to atmosphere (to allow for pressure equalization) and the vault penetrations sealed, subject the vault interior to a 5-minute internal vacuum of 18 kPa +/- 1.5 kPa. Visually inspect the interior concrete vault walls. There must be no signs of structural damage (voids, cracks, spalls), no signs of leakage after thorough visual inspection of the walls, and no signs of pooling water at the vault floor.

3.2.2 Aboveground Storage Tank Tightness Tests

Perform tightness tests on each aboveground storage tank prior to making piping connections. Perform testing in accordance with STI 700-50-5007 (STI R912) except as modified herein. Gauges used to monitor the tests must have a scale with a maximum limit of 103 kPa. Repair leaks discovered during the tightness tests in accordance with tank manufacturer's instructions. Following any repair, re-test the tank until the tank successfully passes the testing requirements of this paragraph.

3.2.3 Tank Manufacturer's Tests

In addition to the tests required herein, perform any additional tests (i.e., leak tests, cathodic protection verification tests, etc.) on each storage test that is required by the tank manufacturer's written test procedures. Manufacturer's tests that are redundant to tests already required by this specification will only be performed once per tank.

Repair all leaks discovered during the tests in accordance with manufacturer's instructions. Following tank repairs, re-test the tank until the tank successfully passes the manufacturer's testing requirements.

3.2.4 System Commissioning

System commissioning must conform to Section 33 08 55 FUEL DISTRIBUTION

SYSTEM START-UP (NON-HYDRANT).

3.2.5 Tank Inspection Reports

Prior to system commissioning, a STI SP001 certified inspector must inspect the completed aboveground tank in accordance with STI SP001 and deliver a full report to the Contracting Officer. The report must include a record of ultrasonic thickness measurements (UTMs), exclusive of the coating, of each single wall aboveground tank shell. The report must include the tank dataplate information and photograph of the tank data plate. Provide electronic copies of the tank inspection reports to Service Headquarters, Service Control Points, and DLA-Energy. The paper and electronic copies of the report and UTMs must be provided to the Contracting Officer for filing with the tank's "as-built drawings." Refer

SECTION 33 56 10 Page 11 to Section 01 45 00.00 10 QUALITY CONTROL for STI SP001 Inspector's Certification requirements.

3.3 DEMONSTRATIONS

Conduct a training session for designated Government personnel in the operation and maintenance procedures related to the system components and systems specified herein. Provide a Japanese translator during training sessions for non-English speaking personnel. Include pertinent safety operational procedures in the session as well as physical demonstrations of the routine maintenance operations. Furnish instructors who are familiar with the installation/system components and systems, both operational and practical theories, and associated routine maintenance procedures. The training session must consist of a total of 8 hours of normal working time and must start after the system is functionally completed, but prior to final system acceptance. Submit a letter, at least 14 working days prior to the proposed training date, scheduling a proposed date for conducting the onsite training.

3.4 TANK FILL TESTS

Tank fill tests must be performed during the initial fill, prior to the flushing, cleaning, and adjusting requirements defined in Section 33 08 55 FUEL DISTRIBUTION SYSTEM START-UP (NON-HYDRANT). For the tank fill tests, initially fill each tank with fuel in order to verify the tank level alarm and pump control system operates properly and the tank overfill protection device functions as designed. Stop filling each tank immediately once the overfill devices operates. Do not overfill any storage tank more than the 98 percent level. Correct and retest any problems with the level alarm system or the overfill device until each operate as specified herein.

During the tests, verify that all tank gauges are calibrated and operating appropriately.

3.5 FIELD PAINTING

Painting required for surfaces not otherwise specified must be field painted as specified in Section 09 97 13.27 EXTERIOR COATING OF STEEL STRUCTURES. Do not paint stainless steel and aluminum surfaces. Do not coat system components or components provided with a complete factory coating. Prior to any field painting, clean surfaces to remove dust, dirt, rust, oil, and grease.

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