NPS Supplemental Specifications.pdf
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- Attached to
- George Washington Memorial Parkway Federal contract opportunity
- Solicitation number
- 693C73-23-B-000004
About this file
This solicitation is for a sealed bid small business set-aside contract to replace two trail bridges on the George Washington Memorial Parkway in Fairfax County, Virginia. The project includes replacing timber trail bridges, reconstructing asphalt approaches, roadway excavation, asphalt paving, and other miscellaneous work, with an expected total cost between $2 million to $5 million. Bid documents are scheduled for release on October 5, 2022, with bid due date and location to be specified in Block 13a of the solicitation. Interested vendors must register at www.sam.gov to receive email notifications and access solicitation documents directly from the website. Questions regarding construction projects should be sent to eflhd.contracts@dot.gov. Bidders must be registered in the System for Award Management database and comply with annual Representations and Certifications requirements.
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Other files for this federal contract opportunity
| File | Type | Posted |
|---|---|---|
| Results of Bid Opening - NP-GWMP MVT(5).pdf | ||
| Amendment 0005 - NP-GWMP MVT(5).pdf | ||
| Amendment 0004 - NP-GWMP MVT(5).pdf | ||
| Amendment 0003 - NP-GWMP MVT(5).pdf | ||
| Amendment 0002 - NP-GWMP MVT(5).pdf | ||
| Amendment 0001 - NP-GWMP MVT(5).pdf | ||
| Geotechnical Report.pdf | ||
| IFB Solicitation - NP-GWMP MVT(5).pdf | ||
| Plans - NP-GWMP MVT(5).pdf | ||
| Categorical Exclusion Form (NEPA).pdf | ||
| FP14_Eng.pdf | ||
| VETS-4212 Form.pdf | ||
| ADV_Bidders Qualifications Form.doc | DOC document |
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NPS Supplemental Specifications
6-C-1
GWMP‐Mount Vernon Trail, Aug‐19 05522‐1/17
BRIDGE 12 SOLID STEEL ROD
SECTION 05522
SOLID STEEL ROD
GENERAL
1 .1 DESCRIPTION
A. Furnish and install painted black 5/8‐inch diameter steel rod spindles
1 .2 RELATED WORK
A. Section 06100 ‐ Rough Carpentry
1 .3 REFERENCES
A. American Architectural Manufacturers Association (AAMA)
B. American Iron and Steel Institute (AISI)
C. American National Standards Institute (ANSI)
1. A58.1 Minimum Design Loads in Buildings and Other Structures.
2. A117.1 Accessible and Usable Buildings and Facilities.
D. American Society for Testing and Materials (ASTM)
1. E 985 Specification for Permanent Metal Railing Systems and Rails for Buildings
E. Building Code
1. International Building Code 2000 (IBC)
F. National Association of Architectural Metal Manufacturers (NAAMM)
1. Metal Finishes Manual
1 .4 REQUIREMENTS
A. Loads
1. Railing assemblies, including spindles and attachments, shall withstand a minimum 50 pound per linear foot uniform load and a 200 pound concentrated load applied horizontally or vertically down at any point on the top rail. Concentrated and uniform loads do not need to be applied concurrently.
B. Black color matte finish (flat)
1 .5 SUBMITTALS
6-C-2
GWMP‐Mount Vernon Trail, Aug‐19 05522‐2/17
A. Product Data
1. Submit manufacturer’s engineering data and two samples of painted rod, per Section
01300.
B. Shop Drawings
1. Submit shop drawings and product data under provisions of Section 01300
2. Indicate component details, materials, finishes, connection and joining methods, and the relationship to adjoining work.
C. Samples
1. Furnish one sample of pipe, one bracket and its connecting bolt. Bracket will be returned for use on the project
1 .6 QUALITY ASSURANCE
A. Qualifications:
1. Furnish references listing projects of similar size and scope
B. Regulatory Requirements:
1. Components and installation are to be in accordance with state and local code authorities
2. Components and installation are to follow current ADA and IBC/ANSI A117.1 guidelines.
C. Certifications
1. Furnish certification that all components and fittings are furnished by the same manufacturer or approved by the primary component manufacturer.
2. Furnish certification that components were installed in accordance to the manufacturer's engineering data to meet the specified design loads.
D. Pre‐Installation Meeting
1. Prior to the beginning of work, conduct a pre‐job conference at the job site.
2. Provide seven calendar days advance written notice ensuring the attendance by competent authorized representatives of the fabricator, the COR, and Contractor’s representative whose work interfaces with the work of this section.
3. Review the Work to determine any potential problems, changes, scheduling, unique job site conditions, installation requirements and procedures and any other information pertinent to the installation.
4. Record the results of the conference and furnish copies to all participants.
1 .7 DELIVERY, STORAGE AND HANDLING
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GWMP‐Mount Vernon Trail, Aug‐19 05522‐3/17
A. Deliver materials to the job site in good condition and properly protected against damage to finished surfaces.
B. Storage on site:
1. Store material in a location and in a manner to avoid damage. Stacking shall be done in a way that will prevent bending.
2. Store material in a clean, dry location. Cover with waterproof paper, tarpaulin, or polyethylene sheeting in a manner that will permit circulation of air inside the covering.
3. Keep handling on site to a minimum. Exercise particular care to avoid damage to finishes of material.
PRODUCTS
2 .1 MATERIALS AND FINISHES
A. Steel rod shall conform to ASTM A36
B. Finish: blast cleaned, two‐coat primed with zinc rich primer and painted by thermoplastic powder coating process 5 MILS minimum dry thickness
C. Color: Black matte finish (dull or flat)
EXECUTION
3 .1 PREPARATION
A. Supply items ready to be inserted in wood rails.
3 .2 INSTALLATION
A. Install in accordance with shop drawings.
3 .3 REPAIR OF DEFECTIVE WORK
A. Remove stained or otherwise defective work and replace with material that meets specification requirements.
MEASUREMENT AND PAYMENT
4 .1 SOLID STEEL ROD
A. Payment will be included in the bid item to which this work relates.
END OF SECTION
6-C-4
GWMP‐Mount Vernon Trail, Aug‐19 06076‐4/17
BRIDGE 12 PRESERVATIVE‐TREATED WOOD
SECTION 06076
PRESERVATIVE‐TREATED WOOD
GENERAL
1 .1 DESCRIPTION
A. All lumber to be pressure treated according to AWPA standard U1‐19 (or ICC‐ES. LLC) and decay protection treatment for wood products specified in Section 06100, including:
1. Ground Contact:
a. Support post (4x6), use category UC4C (Ground Contact – Extreme Duty)
b. Header, use category UC3B (Above Ground – Exposed)
c. Stringer, use category UC3B (Above Ground – Exposed)
d. Piles, use category UC4C (Ground Contact – Extreme Duty)
2. Above Ground:
a. Decking and railings, use category UC3B (Above Ground – Exposed)
1 .2 RELATED WORK
1. Section 06100 ‐ Rough Carpentry.
1 .3 REFERENCES
A. General standards listed by reference, including revisions by issuing authority, form a part of this specification section to extent indicated. Standards listed are identified by issuing authority, authority abbreviation, designation number, title, or other designation established by issuing authority. Standards subsequently referenced herein are referred to by issuing authority abbreviation and standard designation.
B. American Wood‐Preservers’ Association (AWPA) Standards:
1. Standard U1‐19, All Timber Products – Preservative Treatment by Pressure Process.
C. National Institute of Standards and Technology (NIST):
1. PS 20, American Softwood Lumber Standard.
1 .4 SUBMITTALS
A. Submit listed submittals in accordance with Conditions of the Contract and Submittal Section
01300
B. Submit product data, including manufacturer’s product sheet, for specified products.
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GWMP‐Mount Vernon Trail, Aug‐19 06076‐5/17
C. Quality Assurance Submittals: Submit the following:
1. Reports: Certified test reports showing compliance with specified performance characteristics and physical properties
2. Certificates: Certification from treating plant certifying wood treatment applied complies with the criteria and physical requirements for copper quaternary preservative‐treated wood products as specified herein.
3. Closeout Submittals: Submit all warranties and cleaning instructions
1 .5 QUALITY ASSURANCE
A. Qualifications: Provide treated materials, which were produced under quality assurance program conducted by an ALSC ‐ recognized treatment facility.
B. Source Quality: Obtain preservative‐treated wood products from a single approved source.
C. Wood Treatment Plant Qualifications: Plant with specialized experience in performing treatment of wood similar to that required for this project, and licensed by the manufacturer.
D. Regulatory Requirements: Provide preservative treatment that complies with the following regulatory requirements:
1. IBC 2006 requirements for insect‐ and decay‐preservative‐treated wood.
E. Quality Mark: All preservative‐treated wood members shall bear an end tag or permanent ink stamp indicating the following:
1. Name of wood treating company.
2. Treatment plant city and state.
3. Preservative retention level.
4. Approved use.
5. NER number.
1 .6 DELIVERY, STORAGE & HANDLING
A. General: Comply with Division 1 Product Requirements Sections
B. Packing and Shipping: Provide waterproof covers for preservative treated wood during shipment.
C. Storage and Protection: Store preservative treated wood off the ground and protected from the weather.
D. Comply with manufacturer’s ordering instructions and lead requirements to avoid construction delays
E. Delivery: Deliver materials in manufacturer’s original, unopened, undamaged containers with identifications labels intact
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GWMP‐Mount Vernon Trail, Aug‐19 06076‐6/17
F. Exposure: Allow materials exposed to incidental moisture to dry thoroughly prior to installation.
1 .7 WARRANTY
A. Refer to Conditions of the Contract for project warranty provisions.
B. Submit to COR for approval, manufacturer’s standard warranty document executed by authorized company official. Manufacturer’s warranty is in addition to other rights Owner may have under Contract Documents.
1. Warranty Period: Limited lifetime warranty.
PRODUCTS
2 .1 PRESERVATIVE‐TREATED WOOD PRODUCTS
A. Preservative treatment system shall not contain arsenic and/or chromium compounds
B. Approved Wood Preservative Products:
1. Waterborne, Copper‐Based Solution.
2. Waterborne, Copper Based, Suspension.
2 .2 PRODUCT SUBSTITUTIONS
A. Substitutions with equivalent products will be permitted when approved by the COR. Provide submittals of the manufacturer’s specifications including chemicals used, recommended applications, retention rates, fastener recommendations, ICBO reports, and NER report number.
2 .3 RELATED MATERIALS
A. Provide the following related materials:
1. Material type and name of end cut preservative shall be compatible with manufacturer‘s recommendations.
2. Fasteners
3. Material: All fasteners including screws, bolts and nails shall be stainless steel (SS) fasteners, meeting ASTM F593
4. Aluminum should not be used in direct contact with this wood.
5. See Section 06079 for additional specifications.
6-C-7
GWMP‐Mount Vernon Trail, Aug‐19 06076‐7/17
2 .4 SOURCE QUALITY
A. Testing and Inspections: The CO reserves the right to call for testing and inspections at any time during the project duration.
EXECUTION
3 .1 MANUFACTURER’S INSTRUCTIONS
A. Comply with manufacturer’s product data, including technical bulletins, catalog installation instructions, and carton instructions for installation.
3 .2 INSTALLATION
A. General: No. 1 or better preservative‐treated wood members in accordance with appropriate untreated lumber and plywood span tables.
1. Use a minimum 1/8‐inch thick stainless steel plate to prevent direct contact and maintain separation between treated wood and aluminum.
B. Install preservative‐treated wood in accordance with requirements of applicable codes and related Division 6 sections. Avoid milling operations that could adversely affect preservative characteristics of treated wood.
C. Treat end cuts of preservative‐treated wood members with field‐applied end coat prior to installation.
3 .3 SAFETY
A. Obtain complete application recommendations from the manufacturer. Avoid frequent or prolonged inhalation of sawdust from treated wood. Wear a dust mask when sawing and machining treated wood. Wear goggles to protect eyes from flying particles when power sawing or machining. Surfaces shall be clean and dry before application. Follow OSHA safety requirements.
3 .4 PROTECTION
A. Protect preservative‐treated wood from damage due to subsequent construction activity.
MEASUREMENT AND PAYMENT
4 .1 PRESERVATIVE‐TREATED WOOD
A. Payment will be included in the bid item to which this work relates.
6-C-8
GWMP‐Mount Vernon Trail, Jun‐06 06079‐8/17
BRIDGE 12 WOOD FASTENERS
SECTION 06079
WOOD FASTENERS
GENERAL
1 .1 DESCRIPTION
A. Stainless Steel (SS) and hot‐dipped galvanized, pre‐engineered metal connectors used to support wood framing from concrete, masonry, wood, or composite wood supporting members.
B. EPDM (Ethylene Propylene Diene Monomer) spacers.
1 .2 RELATED SECTIONS
A. Section 03300 – Cast‐In‐Place Concrete – Concrete provides support or anchorage.
B. Section 06100 – Rough Carpentry – Wood supported by fastenings or providing support or anchorage.
1 .3 REFERENCES
A. Steel:
1. ASTM A193‐B7 – Alloy Steel and Stainless Steel Bolting Materials for High Temperature
Service
2. ASTM F1667 – Driven Fasteners: Nails, Spikes, and Staples
3. ICBO AC95 – Acceptance Criteria to Determine Bending Yield Moment for Nails
4. ICBO AC120 – Acceptance Criteria for Wood Screws
5. ASTM 153 Galvanized Steel for fasteners
6. ASTM 653 Class G185 Galvanized steel sheet
B. Wood:
1. 1997 NDS – National Design Specification
2. ASTM D1761 – Standard Test Methods for Mechanical Fasteners in Wood
C. EPDM:
1. ASTM D‐2000 SAE J200, 3BA (508, 608, 708), C12 MIL R‐3065 RS 508, 608, 708, C12
1 .4 DELIVERY, STORAGE, AND HANDLING
A. Deliver products to job site in manufacturer or distributor’s packaging undamaged; complete with installation instructions.
B. Protect and handle materials in accordance with manufacturer’s recommendations to prevent damage or deterioration.
6-C-9
GWMP‐Mount Vernon Trail, Jun‐06 06079‐9/17
PRODUCTS
2 .1 MATERIALS
A. Bolts, carriage bolts, timber bolts, nuts, washers, nails
1. Stainless steel Type 304 or higher.
B. Plates, connectors, joist hangers:
1. Stainless steel.
C. Spacers:
1. 80 +/‐5 Duro Black EPDM washer ¼” thick 1” outside diameter, 0.375” inside diameter by Thomas A Caserta, Inc. (609) 586 2807 www.casertainc.com or equivalent. Provide manufacturer’s data for approval.
D. Deck Screws: No.12 stainless steel bugle‐head, square drive deck screws at least 5 inches long
2 .2 FABRICATION
A. Shop assembly per the manufacturer’s approved production drawings.
B. Fabrication tolerances per manufacturer.
C. Fabrication requiring welding shall be performed in accordance with the current American
Welding Society’s standards.
D. The manufacturer’s identification shall be stamped into the metal part and/or a label may be attached to the part with adhesive.
2 .3 TESTING
A. Allowable loads published in manufacturer’s catalog to be determined using the minimum load from static and/or cyclic analysis, and one or more of the following test methods:
1. Static load tests in wood assemblies
2. Static load tests in steel jigs
3. Static load tests of products embedded in concrete or masonry
B. Testing to determine allowable loads shall be performed per ICBO Acceptance Criteria 13 (AC13) and/or ASTM D1761.
C. Allowable loads for hangers are determined by a static load test resulting in not more than a
1/8” deflection of the joist relative to the header, or the lowest test ultimate load divided by 3, or the fastener allowable load as determined by the National Design Specifications (NDS), whichever is lower.
6-C-10
GWMP‐Mount Vernon Trail, Jun‐06 06079‐10/17
D. Testing shall be conducted under the supervision of an independent laboratory.
E. Manufacturer to provide code‐testing data on all relevant products.
EXECUTION
3 .1 EXAMINATION
A. Unless otherwise noted in the manufacturer’s catalog, allowable loads shall be for Southern
Yellow Pine pressure treated ACQ or CA‐B; under all wet conditions. Allowable loads for other species or conditions shall be adjusted according to the code. See manufacturer’s catalog for additional notes and requirements.
B. Verify that the dimensions of the supporting member are sufficient to receive the specified fasteners.
3 .2 INSTALLATION
A. Unless otherwise noted in the manufacturer’s catalog, bolts and nails shall not be combined.
B. All nails shall be common unless otherwise noted in the manufacturer’s catalog or substituted, by the COR, with a reduction taken.
C. Unless otherwise noted in the manufacturer’s catalog, bending steel in the field may cause fractures at the bend line. Fractured steel will not carry load and must be replaced. When bending is allowed or required in the catalog, the connector may undergo only one cycle bend.
D. A fastener that splits the wood will not take the design load. Evaluate splits to determine if the connection will perform as required. Dry wood may split more easily and must be evaluated as required. If wood tends to split, pre‐bore holes with diameters not exceeding 0.75 of the nail diameter (1997 NDS 12.1.3.1).
E. Wood shrinkage shall be taken into account when installing connections.
F. Built‐up lumber (multiple members) shall be fastened together to act as one unit to resist the applied load.
G. Do not overload by exceeding the manufacturer’s catalog allowable load values.
H. Unless otherwise noted in the manufacturer’s catalog, fill all fastener holes with fastener types as specified in the manufacturer’s catalog.
I. Bolt holes shall be a minimum of 1/32” and a maximum of 1/16” larger than the bolt diameter
(NDS 8.1.2.1)
J. Install all specified fasteners before loading the connection.
6-C-11
GWMP‐Mount Vernon Trail, Jun‐06 06079‐11/17
K. Nail tools with hole‐location mechanisms may be used to install connectors, provided the correct quantity and type of nails are properly installed in the nail holes.
L. Joist shall bear completely on the connector seat, and the gap between the joist end and the header shall not exceed 1/8”.
M. Modifications to products or changes in installation procedures may only be made by a qualified designer. The performance of such modified products or an altered installation procedure is the sole responsibility of the Contractor.
3 .3 FIELD QUALITY CONTROL
A. Determine that the proper part is being used in the correct application and has been fabricated by the approved manufacturer, by observation of the stamp into the metal part and/or the adhesive label on the product denoting part and manufacturer name.
B. Before substituting another brand, confirm load capacity based on published testing data and calculations. The COR must evaluate and give written approval for substitution prior to installation.
MEASUREMENT AND PAYMENT
4 .1 WOOD FASTENERS
A. Payment will be included in the bid item to which this work relates.
END SECTION
6-C-12
GWMP‐Mount Vernon Trail, Aug‐19 06100‐12/17
BRIDGE 12 ROUGH CARPENTRY
SECTION 06100
ROUGH CARPENTRY
GENERAL
1 .1 DESCRIPTION
A. The work of this section consists of rough carpentry work.
1 .2 SUBMITTALS
A. As specified in Section 01300.
B. Shop Drawings: Show railing layout and dimensions.
C. Manufacturer's Literature:
1. Submit information for timber connectors indicating load capacities, corrosion protection, and evidence that products meet the requirements of this section.
1 .3 QUALITY ASSURANCE
A. Identify lumber by official grade mark.
B. Lumber: Grade stamp containing, symbol of grading agency, rules under which graded, mill number or name, grade of lumber, species or species grouping, and condition of seasoning.
1 .4 PRODUCT DELIVERY, STORAGE, AND HANDLING
A. Store materials a minimum of 6 inches above ground in area protected from weather. Protect with waterproof covering allowing adequate air circulation. Do not store seasoned materials in wet or damp environments.
PRODUCTS
2 .1 LUMBER
A. All lumber to be pressure treated according to AWPA standard or evaluate by ICC‐ES. LLC as specified in Section 06076.
B. All lumber shall be kiln dried after treatment (KDAT) to the moisture contents shown below
C. Per ALSA Product Standard PS‐20‐99.
1. Moisture Content: Kiln dried to 19 percent maximum KDAT for lumber 3 inches or less in thickness. And 25% KDAT for lumber larger than 3” in thickness
2. Surfacing: S4S, unless otherwise specified.
3. Dimensions: All dimensions are nominal.
6-C-13
GWMP‐Mount Vernon Trail, Aug‐19 06100‐13/17
BRIDGE 12 ROUGH CARPENTRY
4. Species: Southern Yellow Pine, No. 1 or better.
5. Preservative: All lumber shall be treated as specified in Section 06076.
2 .2 ROUGH HARDWARE
A. See Section 06079 “Wood Fasteners”
B. Timber Connectors: Strong‐Tie, by Simpson Company, San Leandro, California, or approved equivalent connectors with equal or greater load capacity for all directions of loading.
C. Miscellaneous Hardware: Provide nails, spikes, screws, bolts, nuts, washers, anchors, and similar items of type, size, and strength required to secure members rigidly in place.
EXECUTION
3 .1 CONDITION OF SURFACES
A. Verify that surfaces to receive rough carpentry materials are prepared to exact grade and dimensions.
3 .2 GENERAL INSTALLATION
A. Install rough carpentry work in accordance with International Building Code (IBC) 2000
MEASUREMENT AND PAYMENT
4 .1 ROUGH CARPENTRY
A. Payment will be included in the bid item to which this work relates.
6-C-14
GWMP‐Mount Vernon Trail, Aug‐19 09900‐14/17
BRIDGE 12 DRY POWDER COATINGS
SECTION 09900
DRY POWDER COATINGS
GENERAL
1 .1 DESCRIPTION
A. This specification covers the requirements for dry powder coatings applied by fluidized bed or electrostatic spray to iron or steel equipment surfaces to protect them from corrosion. The equipment to which the coating is applied may be referred to hereafter as the end item.
B. Classification ‐ The dry powder coatings covered by this specification shall be Type II ‐ coating for outdoor use.
1 .2 APPLICABLE DOCUMENTS
A. Government Documents ‐ The following documents the issue in effect as the date of invitation for bids or request for proposal and are incidental to this specification.
1. Specifications ‐ Federal TT‐C‐490 Cleaning Methods for Ferrous Surfaces and
Pretreatments for Organic Coatings
2. Standard ‐ FED‐STD‐313
3. Standard ‐ FED‐STD‐141
4. Standard ‐ FED‐STD‐595
5. Material Safety Data, Transportation Data and Disposal Data for Hazardous Materials
Furnished to Government Activities Paint, Varnish, Lacquer and Related Materials:
Methods of Inspection, Sampling, and Testing Colors Used In Government Procurement
(Copies of specifications and standards required by contractors in connection with specific procurement functions may be obtained from the Procurement and Supply
Department or as directed by the Contracting Officer.)
B. Non‐Government Documents ‐ The following documents are incidental to this specification.
Unless otherwise indicated, the issue in effect as of the date of invitation for bids or request for proposal shall apply.
1. Powder Coating Institute (PCI) Test #3 Contrast Ratio‐Recommended Procedure for
Powder Coatings (Application for copies should be addressed to the Powder Coating
Institute, 1800 Diagonal Road, Suite 370, Alexandria, VA 22314‐2843.)
C. American Society for Testing and Materials (ASTM)
1. ASTM A366M Standard Specification for Steel, Sheet, Carbon, Cold Rolled, Commercial
Quality
2. ASTM B117 Standard Method of Salt Spray (Fog) Testing
3. ASTM D522 Standard Test Methods for Mandrel Bend Test of Attached Organic Coatings
4. ASTM D523 Standard Test Method for Specula Gloss
6-C-15
GWMP‐Mount Vernon Trail, Aug‐19 09900‐15/17
5. ASTM D4060 Standard Test Method for Abrasion Resistance of Organic Coatings by the
Taber Abrader
6. ASTM D1186 Standard Test Methods for Nondestructive Measurement of Dry Film
Thickness of Nonmagnetic Coatings Applied to a Ferrous Base
7. ASTM D1729 Standard Practice for Visual Evaluation of Color Differences of Opaque
Materials
8. ASTM D2244 Standard Method for Calculation of Color Differences from Instrumentally
Measured Color Coordinates
9. ASTM D2794 Standard Test Method for Resistance of Organic Coatings to the Effects of
Rapid Deformation (Impact)
10. ASTM D3359 Standard Test Methods for Measuring Adhesion by Tape Test
11. ASTM D3363 Standard Test Methods for Measuring Film Hardness by Pencil Test
12. ASTM G26 Standard Practice Exposure Apparatus Without Water for Materials for
Operating Light (Xenon‐Arc Type) With and Exposure of Nonmetallic
13. ASTM D6441 ‐ 05 Standard Test Methods for Measuring the Hiding Power of Powder
Coatings
D. Order of Precedence ‐ In the event of a conflict between the text of this specification and the references cited herein (except for associated detail specifications or standards), the text of this specification shall take precedence. Nothing in this specification supersedes applicable laws and regulations, unless a specific exemption has been obtained.
1 .3 REQUIREMENTS
A. Type II coatings polyester based
B. Materials ‐ The contractor's selection of raw materials shall be such that the dry powder coating meets the requirements of this specification.
C. Prohibited Materials ‐ There shall be no hazardous Ingredients present in the formulations, such as lead, chromate, and cadmium pigments or any carcinogenic or suspected carcinogenic compounds.
PRODUCTS
2 .1 MATERIAL CHARACTERISTICS
A. The material shall be a finely ground, compounded powder consisting of a resin, curing agents, catalysts, fillers, colorants, and flow control agents which, when applied to a substrate, will melt, fuse, and subsequently cure to form
6-C-16
GWMP‐Mount Vernon Trail, Aug‐19 09900‐16/17
B. Surface Preparation and Condition
1. Base Metal Preparation Requirements ‐ Defects in the base surface of the metal, such as scratches, porosity, pits, inclusions, cracks, roll marks, and die shall not occur over more than 5% of the surface to be coated
2. Cleaning of Base Metal ‐ Proper preparatory procedures and thorough cleaning of the base metal is essential to ensure satisfactory adhesion and corrosion resistant performance of the coating. Surface cleaning and chemical conversion coatings shall be in accordance with an appropriate method specified in TT‐C‐490.
3. Touch Up ‐ A color matched liquid enamel touch‐up paint shall be applied to the effected areas, if recycling an item through the application booth and oven is insufficient to cover hanger marks, light spots in seams and corners, damaged areas from welding or assembly, and other small defects. The paint shall have a volatile organic content (VOC) in compliance with state and local Environmental Protection
Agency standards. The paint shall be applied with a small brush, an aerosol spray, or an airless spray gun and air‐dried or accelerated with a low temperature bake. The touch‐ up paint shall be used after the powder coating has been fully cured in a bake oven.
Touch‐up paint cannot be used if it will not meet the performance specifications required during the expected life of the part. Touch‐up paint shall not be used to repair a faulty finish unless the result and product meets inspection standards.
4. Abrasion Resistance ‐ The cured film, when tested, shall exhibit a maximum weight loss of 65 milligrams.
5. Adhesion ‐ The cured film, when tested as, shall show no lifting, flaking, or other signs of loss of adhesion from the substrate.
6. Impact Resistance ‐ The cured film, when tested shall show no lifting, flaking, cracking or loss of adhesion.
7. The cured film, when applied to the test bars shall not show running, sagging, streaking, dusting, and shall present a smooth, uniform finish free from seediness
8. Thickness ‐ The cured film, when measured as specified in reference 1.2 6 of this
Section, shall be a minimum of 0.0015 inches.
9. Gloss – Matte flat finish, when tested shall have a specular gloss of ±5 percent units of the specified color chip in accordance with FED‐STD‐595.Hardness ‐ The cured film, when measured as specified shall have a minimum pencil hardness of H.
10. Color – Black, the cured film when examined shall match the referenced color chip in accordance with FED‐STD‐595 with a color difference tolerance of Commission
Internationale de 'Eclairage (CIE) E ± 1.0.
11. Hiding Power ‐ The cured film, when tested as specified in reference 1.2 13 of this
Section, shall have a minimum contrast ratio of 0.90 to 0.0012 inch of film thickness
2 .2 SAFETY
A. Toxic Products and Formulations ‐ The material shall have no adverse effect on the health of personnel when used for its intended purpose. Questions pertinent to this effect shall be referred by the contracting activity to the appropriate departmental medical service who will act as an advisor to the contracting activity.
6-C-17
GWMP‐Mount Vernon Trail, Aug‐19 09900‐17/17
B. Material Safety Data Sheet ‐ The contracting activity shall be provided a Material Safety Data
Sheet (MSDS) at the time of contract award. The MSDS is Occupational Safety and Health
Administration (OSHA) Form 174, found as part of FED‐STD‐313. The MSDS shall be included with each shipment of the material covered by this specification.
2 .3 QUALITY ASSURANCE PROVISIONS
A. Responsibility for Inspection ‐ Unless otherwise specified in the contract or purchase order, the contractor is responsible for the performance of all inspection requirements as specified herein.
Except as otherwise specified in the contract or purchase order, the contractor may use his own or any other facilities suitable for the performance of the inspection requirements specified herein, unless disapproved by the NPS. NPS reserves the right to perform any of the inspections set forth in this specification where such inspections are deemed necessary to assure that supplies and services conform to the prescribed requirements.
EXECUTION (Not Used)
MEASUREMENT AND PAYMENT
4 .1 DRY POWDER COATINGS
A. Payment will be included in the bid item to which this work relates.
6-C-18
| Appendix C - Cover |
| Appendices_Cover Pages |
Appendix C - NPS Supplemental Specifications
File details come from the government source that posted it. Updated .