Am-0006_W9128F21R0079.pdf

Offers must acknowledge receipt of this amendment prior to the hour and date specified in the solicitation or as amended, by one of the following methods:

(a) By completing items 8 and 15, and returning or (c) By separate letter or electronic communication which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN REJECTION OF YOUR OFFER. If by virtue of this amendment you desire to change an offer already submitted, such change may be made by letter or electronic communication, provided each letter or electronic communication makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

E. IMPORTANT: Contractor is not is required to sign this document and return copies to the issuing office.

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT 1. CONTRACT ID CODE

2. AMENDMENT/MODIFICATION NUMBER 3. EFFECTIVE DATE 4. REQUISITION/PURCHASE REQUISITION NUMBER 5. PROJECT NUMBER (If applicable)

7. ADMINISTERED BY (If other than Item 6) CODE

STANDARD FORM 30 (REV. 11/2016)

Prescribed by GSA FAR (48 CFR) 53.243

FACILITY CODE

9A. AMENDMENT OF SOLICITATION NUMBER

9B. DATED (SEE ITEM 11)

10A. MODIFICATION OF CONTRACT/ORDER NUMBER

10B. DATED (SEE ITEM 13)

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offers is extended. is not extended.

12. ACCOUNTING AND APPROPRIATION DATA (If required) copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted;

13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACTS/ORDERS.

IT MODIFIES THE CONTRACT/ORDER NUMBER AS DESCRIBED IN ITEM 14.

CHECK ONE A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (Specify authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE CONTRACT ORDER

NUMBER IN ITEM 10A.

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, appropriation data, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(b).

C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

D. OTHER (Specify type of modification and authority)

Except as provided herein, all terms and conditions of the document referenced in Item 9A or 10A, as heretofore changed, remains unchanged and in full force and effect.

15C. DATE SIGNED

15A. NAME AND TITLE OF SIGNER (Type or print)

16C. DATE SIGNED

16A. NAME AND TITLE OF CONTRACTING OFFICER (Type or print)

14. DESCRIPTION OF AMENDMENT/MODIFICATION (Organized by UCF section headings, including solicitation/contract subject matter where feasible.)

PAGE OF PAGES

6. ISSUED BY CODE

8. NAME AND ADDRESS OF CONTRACTOR (Number, street, county, State and ZIP Code) (X)

CODE

15B. CONTRACTOR/OFFEROR

(Signature of person authorized to sign)

16B. UNITED STATES OF AMERICA

(Signature of Contracting Officer)

Previous edition unusable

W9128F

B-21: FORMAL TRAINING UNIT/AMU (FTU), PN FXBM1093477, FY22, ELLSWORTH AFB, SOUTH DAKOTA

See attached documentation for content of the amendment revisions to solicitation

Date for receipt of Volume II proposals is 14 DEC 2021 at 1400 hours CST

Government Point of Contact: Katherine Fisher, Contract Specialist, Katherine.K.Fisher@usace.army.mil

U.S.ARMY CORPS OF ENGINEERS, OMAHA

Contracting Division (CENWO-CT) 1616 Capitol Ave Omaha, Nebraska 68102-4901

See Item 6

W9128F21R0079

12/02/2021

08/24/2021

12/02/2021

Am #0006 - 1

Am #0006 - 2 (Continuation SF 30)

2 DEC 2021

Solicitation No. W9128F 21 R 0079

Date of Issue: 24 AUG 2021 New Date of Receiving Volume II Proposal: 14 DEC 2021

SUBJECT: Amendment No. 0006 to Request for Proposal Solicitation Package for Construction of B-21: FORMAL TRAINING UNIT/AMU (FTU), PN FXBM1093477.

TO: Prospective Offerors and Others Concerned

1. The specifications and drawings for subject project are hereby modified as follows (revise all specification indices, attachment lists, and drawing indices accordingly).

a. Specifications. (Descriptive Changes.)

(1) Standard Form 1442 (SF1442), Page 00 10 00-1, item 13.A., delete the time and date for proposal receipt and substitute “1600” and “14 DEC 2021”.

(2) Section 00 21 00, Page 25, paragraph 1.27.1 “BIDDER INQUIRY”, delete the first sentence “Technical inquiries and...receipt of offers.” and substitute the following:

“Technical inquiries and questions relating to technical requirements, proposal procedures or bonds are to be submitted via Bidder Inquiry in ProjNet at: https://www.projnet.org/projnet/ No Later Than 1600 CST, 6 DEC 2021, in order that they may be given consideration or actions taken prior to receipt of offers.”

b. Specifications (New and/or Revised and Reissued). Delete and substitute or add specification pages or sections as noted below. The substituted pages or sections are revised and reissued with this amendment. For convenience, on the revised specification pages, changes have been identified with highlighting, all portions of the revised specification pages apply regardless of whether changes are shown with highlighting.

Pages or Sections Deleted Pages or Sections Substituted or Added 09 69 13 09 69 13 12 50 00.13 10AT1 12 50 00.13 10AT1 – FF&E Package

c. Drawings (Reissued). The following drawings are revised with latest revision date as shown in the drawing border and reissued with this amendment.

VOLUME I OF II:

(1) Sheet EP604, MECHANICAL EQUIPMENT CONNECTION SCHEDULE

(2) Sheet EP605, MECHANICAL EQUIPMENT CONNECTION SCHEDULE

(3) Sheet EP606, KITCHEN EQUIPMENT CONNECTION SCHEDULE

(4) Sheet EP607, KITCHEN EQUIPMENT CONNECTION SCHEDULE

(5) Sheet T-608, TELECOMMUNICATIONS OSP RISER DIAGRAM

Am #0006 - 3 (Continuation SF 30)

VOLUME II OF II:

(1) Sheet IF103, FIRST FLOOR FURNITURE PLAN - AREA A

(2) Sheet IF104, FIRST FLOOR FURNITURE PLAN - AREA B

(3) Sheet IF105, FIRST FLOOR FURNITURE PLAN - AREA C

(4) Sheet IF106, SECOND FLOOR FURNITURE PLAN - AREA A

(5) Sheet IF108, SECOND FLOOR FURNITURE PLAN - AREA C

(6) Sheet AV401, AV SIGNAL FLOW DIAGRAMS

2. This amendment is a part of the proposing papers and its receipt shall be acknowledged. All other conditions and requirements of the request for proposal remain unchanged.

3. Electronic Proposals. Provide proposals via the instructions provided in Section 00 22 00 of the Request for Proposal.

4. Offers will be received until 2:00 p.m. CST on 14 DEC 2021.

Attachments:

Section 00 10 00 – SF1442 and CLIN Pricing Schedule Specifications listed in 1.b., above Drawings listed in 1.c., above

U.S. Army Corps of Engineers, Omaha District 1616 Capitol Avenue Omaha, Nebraska 68102-4901

02 DEC 2021

nep/2160

This page was intentionally left blank for duplex printing.

00 10 00(SF1442) - Page 1

SOLICITATION, OFFER

AND AWARD

(Construction, Alteration, or Repair)

1. SOLICITATION NO.

W9128F-21-R-0079

2. TYPE OF SOLICITATION

SEALED BID (IFB)

NEGOTIATED (RFP)

3. DATE ISSUED

24 AUG 2021

PAGES OF PAGES

IMPORTANT - The "offer" section on the reverse must be fully completed by offeror.

4. CONTRACT NO. 5. REQUISITION/PURCHASE REQUEST NO. 6. PROJECT NO.

7. ISSUED BY CODE CT 8. ADDRESS OFFER TO

U.S.ARMY CORPS OF ENGINEERS, OMAHA

Contracting Division (CENWO-CT) 1616 Capitol Ave Omaha, Nebraska 68102-4901

See Block 7

9. FOR INFORMATION

CALL:

A. NAME

Katherine Fisher

B. TELEPHONE NO. (Include area code) (NO COLLECT CALLS) Use Email: Katherine.K.Fisher@usace.army.mil

SOLICITATION

NOTE: In sealed bid solicitations "offer" and "offeror" mean "bid" and "bidder".

10. THE GOVERNMENT REQUIRES PERFORMANCE OF THE WORK DESCRIBED IN THESE DOCUMENTS (Title, identifying no., date):

The offeror hereby agrees to do all work described in the documents entitled:

B-21: FORMAL TRAINING UNIT/AMU (FTU), PN FXBM1093477, FY22

ELLSWORTH AFB, SOUTH DAKOTA

RETURN WITH OFFER: INFORMATION REQUIRED BY SECTION 00 10 00 (SF1442), SECTION 00 22 00, AND SECTION 00 45 00.

*BLOCK 13A. – REFER TO SECTION 00 22 00 FOR THE NUMBER OF COPIES TO BE SUBMITTED WITH THE ORIGINAL OFFER.

THIS SOLICITATION IS UNRESTRICTED.

Procurement will be through a bifurcated Request For Proposal (RFP) best-value tradeoff.

11. The Contractor shall begin performance within 10 calendar days and complete it within 800 calendar days after receiving award, notice to proceed. This performance period is mandatory, negotiable.

12A. THE CONTRACTOR MUST FURNISH ANY REQUIRED PERFORMANCE AND PAYMENT BONDS?

(If "YES," indicate within how many calendar days after award in Item 12B.)

YES NO

12B. CALENDAR DAYS

13. ADDITIONAL SOLICITATION REQUIREMENTS:

A. Sealed offers in original and 0 copies to perform the work required are due at the place specified in Item 8 by 1400 (hour) local time 14 DEC 2021. If this is a sealed bid solicitation, offers must be publicly opened at that time. Sealed envelopes containing offers shall be marked to show the offeror's name and address, the solicitation number, and the date and time offers are due.

B. An offer guarantee is is not required.

C. All offers are subject to the (1) work requirements, and (2) other provisions and clauses incorporated in the solicitation in full text or by reference.

D. Offers providing less than 120 calendar days for Government acceptance after the date offers are due will not be considered and will be rejected.

NSN 7540-01-155-3212 1442-101 STANDARD FORM 1442(REV. 4-85)

Prescribed by GSA FAR(48 CFR) 53.236-1(d)

Am #0006

00 10 00(SF1442) - Page 2

14. NAME AND ADDRESS OF OFFEROR (Include ZIP Code) 15. TELEPHONE NO. (Include area code)

DUNS Number:

16. REMITTANCE ADDRESS (Include only if different than Item 14)

CODE FACILITY CODE

17. The offeror agrees to perform the work required at the prices specified below in strict accordance with the terms of this solicitation, if this offer is accepted by the Government in writing within 120 calendar days after the date extension confirmation is due.

AMOUNTS

SEE ATTACHED CLIN PRICING SCHEDULE

Contractor’s Fax No. CAGE CODE Contractor’s E-Mail address

18. The offeror agrees to furnish any required performance and payment bonds.

19. ACKNOWLEDGMENT OF AMENDMENTS

(The offeror acknowledges receipt of amendments to the solicitation - give number and date of each)

AMENDMENT NO.

DATE

20A. NAME AND TITLE OF PERSON AUTHORIZED TO SIGN OFFER

(Type or print)

20B. SIGNATURE 20C. OFFER DATE

AWARD (To be completed by Government)

21. ITEMS ACCEPTED:

22. AMOUNT 23. ACCOUNTING AND APPROPRIATION DATA

24. SUBMIT INVOICES TO ADDRESS SHOWN IN

(4 copies unless otherwise specified)

ITEM

25. OTHER THAN FULL AND OPEN COMPETITION PURSUANT TO

10 U.S.C. 2304(c) ( ) 41 U.S.C. 253(c) ( )

26. ADMINISTERED BY CODE 27. PAYMENT WILL BE MADE BY

U.S. Army Engineer District, Omaha 1616 Capitol Ave.

Omaha, Nebraska 68102-4901

USAED Omaha c/o USACE Finance Center 5722 Integrity Drive Millington, TN 38054-5005

CONTRACTING OFFICER WILL COMPLETE ITEM 28 OR 29 AS APPLICABLE

28. NEGOTIATED AGREEMENT (contractor is required to sign this document and return _______ copies to issuing office.) Contractor agrees to furnish and deliver all items or perform all work, requisitions identified on this form and any continuation sheets for the consideration stated in this contract. The rights and obligations of the parties to this contract shall be governed by (a) this contract award,

(b) the solicitation, and (c) the clauses, representations, certifications, and specifications incorporated by reference in or attached to this contract.

29. AWARD (Contractor is not required to sign this document.) Your offer on this solicitation, is hereby accepted as to the items listed. This award consummates the contract, which consists of (a) the Government solicitation and your offer, and (b) this contract award. No further contractual document is necessary.

30A. NAME AND TITLE OF CONTRACTOR OR PERSON AUTHORIZED

TO SIGN (Type or print)

31A. NAME OF CONTRACTING OFFICER (Type or print)

30B. SIGNATURE 30C. DATE 31B. UNITED STATES OF AMERICA

BY

31C. AWARD DATE

STANDARD FORM 1442 BACK (REV. 4-85)

CLIN SCHEDULE 00 10 00 – 3 W9128F21R0079

CONTRACT LINE ITEM (CLIN) PRICING SCHEDULE

ITEM

NO.

DESCRIPTION EST

QTY

UNIT UNIT

PRICE

AMOUNT

BASIC ITEMS

Entire work complete for Construction of the B-21 Formal Training Unit/AMU (FTU), complete to the five-foot line, excluding items separately listed below.

Scope includes construction of the design and associated systems described above and throughout this Contract. (MILCON)

Job

XXX

Sitework, Utilities, and Pavements from five-foot line to the limits of construction of the B-21 Formal Training Unit/AMU (FTU), including all required demolition, excluding items listed separately below.

(MILCON)

Entire work complete for Cybersecurity documentation and alterations to commercial equipment, devices, firmware, and software to satisfy cybersecurity requirements as described in this Contract), excluding Cybersecurity items separately listed below. (MILCON)

TOTAL BASIC AMOUNT $_____________________________

OPTION ITEMS

[Option] the FTU off-site/overflow parking lot.

(MILCON)

Entire work complete for Procurement and Installation of raised-access flooring in FTU server room(s). (O&M)

Entire work complete for Procurement and Installation of FF&E. (O&M)

CLIN SCHEDULE 00 10 00 – 4 W9128F21R0079

Entire work complete for Procurement, Installation, Commissioning, and Cybersecurity of Intrusion Detection System (IDS), Closed-Circuit Television (CCTV) system and Access Control System (ACS). (O&M)

Entire work complete for Procurement Installation, Commissioning, and Cybersecurity of audio-visual (A/V) system equipment and devices. (O&M)

Entire work complete to provide access control and secure area oversight as defined in 01 14 00 Work Restrictions and associated references. (O&M)

Entire work complete for temporary Government trailer facilities during construction as indicated in this Contract.

(O&M)

Entire work complete for additional removal and disposal of contaminated soils (Category 3 soils as defined in Specification 02 61 13) not previously identified in the project hazardous material survey documentation and not otherwise included in the basic amount. (MILCON)

CY

Entire work complete for removal and disposal of additional asbestos containing material (ACM) piping not previously identified in the project hazardous material survey documentation, and not otherwise included in the basic amount. (MILCON)

LF

TOTAL AMOUNT (BASIC PLUS OPTIONS) $_________________________________

NOTES:

1. See SECTION 00 21 00, INSTRUCTIONS TO OFFERORS for evaluation of options. The Government reserves the right to exercise Option Items 0004-0008 within 640 days of Notice to Proceed and Option Items 0009-0012 within 365 days of Notice to Proceed. Abbreviations: Operations and Maintenance (O&M), Military Construction (MILCON)

2. Prices must be entered for all items of the schedule. Total amounts submitted without prices being entered on individual items will be rejected. Additions will be subject to verification by the Government. In case of variation between the lump-sum prices and the total amount, the lump-sum prices will be considered the price submitted.

CLIN SCHEDULE 00 10 00 – 5 W9128F21R0079

3. A modification to a proposal which provides for a single adjustment to the total amount submitted, should state the application of the adjustment to each respective lump-sum price affected. If the modification is not so apportioned, the single adjustment will be applied to Item No. 0001.

4. Contract duration is 800 calendar days for award basic and option items. No contract duration extension will be provided upon award of any combination of option items.

5. Quantities for unit priced items are estimated only and the respective unit price will prevail in the event of an overrun or underrun subject to General Conditions (Contract Clauses) Clause FAR 52.211-18 “Variation in Estimated Quantities”.

CLIN SCHEDULE 00 10 00 – 6 W9128F21R0079

SUPPLEMENTAL PRICE BREAKDOWN OF PRICING SCHEDULE TEMPLATE

TOTAL WITH MARKUPS AMOUNT TO EQUAL TOTAL BASIC AMOUNT

AS INDICATED ON PAGE 3 AND 4 OF THIS SECTION 00 10 00

DIVISION MASTERFORMAT 2016 DESCRIPTION UNIT AMOUNT

01 GENERAL REQUIREMENTS (minus item 0101) LS $_______________

0101 01 33 29 Sustainability Documentation LS $_______________

02 EXISTING CONDITIONS LS $_______________

03 CONCRETE LS $_______________

04 MASONRY LS $_______________

05 METALS LS $_______________

06 WOOD, PLASTICS, AND COMPOSITES LS $_______________

07 THERMAL AND MOISTURE PROTECTION LS $______________

08 OPENINGS LS $_______________

09 FINISHES LS $_______________

10 SPECIALTIES LS $______________

11 EQUIPMENT LS $_______________

12 FURNISHINGS LS $_______________

13 SPECIAL CONSTRUCTION LS $_______________

14 CONVEYING EQUIPMENT LS $_______________

21 FIRE SUPPRESSION LS $_______________

22 PLUMBING LS $______________

23 HEATING, VENTILATING, AND AIR CONDITIONING LS $_______________

25 INTEGRATED AUTOMATION LS $_______________

26 ELECTRICAL LS $_______________

27 COMMUNICATIONS LS $_______________

28 ELECTRONIC SAFETY AND SECURITY LS $_______________

31 EARTHWORK LS $_______________

32 EXTERIOR IMPROVEMENTS LS $_______________

33 UTILITIES LS $_______________

34 TRANSPORTATION LS $_______________

Total Price Breakdown Amount

Prime Contractor Markups:

--G&A General and Administrative Expense $ ______________ --FOOH Field Office Overhead not defined by Division -01 $ ______________ --PROFIT Profit $ ______________ --P&PB Performance and Payment Bond $ ______________

TOTAL WITH MARKUPS

All items must be entered in dollars.

“TOTAL WITH MARKUPS” from this Price Breakdown must match the “TOTAL BASIC

AMOUNT”.

B-21-Formal Training Unit/AMU (FTU) , Ellsworth AFB, SD EL96

SECTION TABLE OF CONTENTS

DIVISION 09 - FINISHES

SECTION 09 69 13

RIGID GRID ACCESS FLOORING

11/15

PART 1 GENERAL

1.1 REFERENCES

1.2 SUBMITTALS

1.3 SPARE PARTS

1.4 QUALITY CONTROL

1.4.1 Qualification of Manufacturer

1.5 DELIVERY, STORAGE, AND HANDLING

1.5.1 Delivery

1.5.2 Storage

1.5.3 Handling

1.6 WARRANTY

PART 2 PRODUCTS

2.1 SYSTEM DESCRIPTION

2.1.1 Design Requirements

2.1.2 Allowable Tolerances

2.1.2.1 Floor Panel Flatness

2.1.2.2 Floor Panel Length

2.1.2.3 Floor Panel Squareness

2.1.3 Stringers

2.1.4 Pedestals

2.1.5 Bonding Strength of Pedestal Adhesive

2.1.6 Bond Strength of Factory Installed Covering

2.1.7 Seismic Calculations

2.2 FLOOR PANELS

2.2.1 Floor System Drawings And Planer Quality

2.2.2 Detailed Installation Drawings

2.2.3 Panel Construction

2.2.3.1 Cementitious-Filled Formed Steel (Composite Panels)

2.2.4 Floor Covering

2.2.4.1 Static-Dissipative Vinyl Tile

2.2.5 Accessories

2.2.6 Resilient Base

2.2.7 Adhesives

2.2.8 Lifting Device

2.3 PANEL SUPPORT SYSTEM

2.3.1 Pedestals

2.3.2 Stringers

2.3.3 Gaskets

2.4 FASCIA

2.5 STEPS AND RAMPS

2.5.1 Steps

2.5.2 Ramps

2.6 RAILINGS

SECTION 09 69 13 Page 1Am #0006

2.7 FACTORY TESTS

2.7.1 Load Tests

2.7.2 Bond Strength of Covering

2.8 REGISTERS AND GRILLES

2.9 PERFORATED AIR SUPPLY PANELS

2.10 CUT OUTS

PART 3 EXECUTION

3.1 INSTALLATION

3.1.1 Preparation for Installation

3.1.2 Pedestals

3.1.3 Stringers

3.1.4 Auxiliary Framing

3.1.5 Panels

3.1.6 Resilient Base

3.1.7 Fascia Plates

3.1.8 Repair of Zinc Coating

3.2 FIELD TESTS

3.2.1 Acceptance Tests

3.2.2 Grounding

3.2.2.1 Metal Grilles

3.2.2.2 Joint Resistance

3.2.3 Electrical Resistance

3.2.4 SEISMIC SPECIAL INSPECTION AND TESTING

3.3 CLEANING AND PROTECTION

3.3.1 Cleaning

3.3.2 Protection

3.3.3 Surplus Material Removal

3.4 FIRE SAFETY

3.5 OPERATION AND MAINTENANCE MANUALS

ATTACHMENTS:

Furniture, Fixtures, and Equipment (FF&E)

-- End of Section Table of Contents --

SECTION 09 69 13 Page 2Am #0006

SECTION 09 69 13

RIGID GRID ACCESS FLOORING

11/15

PART 1 GENERAL

1.1 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.

ASTM INTERNATIONAL (ASTM)

ASTM A780/A780M (2009; R 2015) Standard Practice for Repair of Damaged and Uncoated Areas of Hot-Dip Galvanized Coatings

ASTM F150 (2006; R 2013) Standard Test Method for Electrical Resistance of Conductive and Static Dissipative Resilient Flooring

ASTM F1700 (2020) Standard Specification for Solid Vinyl Floor Tile

ASTM F1861 (2016) Standard Specification for Resilient Wall Base

CALIFORNIA DEPARTMENT OF PUBLIC HEALTH (CDPH)

CDPH SECTION 01350 (2010; Version 1.1) Standard Method for the Testing and Evaluation of Volatile Organic Chemical Emissions from Indoor Sources using Environmental Chambers

CEILINGS AND INTERIOR SYSTEMS CONSTRUCTION ASSOCIATION (CISCA)

CISCA Access Floors (2007) Recommended Test Procedures for Access Floors

GREEN SEAL (GS)

GS-36 (2013) Adhesives for Commercial Use

ICC EVALUATION SERVICE, INC. (ICC-ES)

ICC-ES AC300 (2014) Acceptance Criteria for Access Floors

INTERNATIONAL CODE COUNCIL (ICC)

ICC IBC (2018) International Building Code

SECTION 09 69 13 Page 3Am #0006

NATIONAL FIRE PROTECTION ASSOCIATION (NFPA)

NFPA 99 (2018; TIA 18-1) Health Care Facilities Code

SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT (SCAQMD)

SCAQMD Rule 1168 (2017) Adhesive and Sealant Applications

U.S. DEPARTMENT OF DEFENSE (DOD)

UFC 3-310-04 (2013; with Change 1, 2016) Seismic Design of Buildings

U.S. GENERAL SERVICES ADMINISTRATION (GSA)

FS TT-C-490 (Rev F; Am 3) Cleaning Methods for Ferrous Surfaces and Pretreatments for Organic Coatings

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

36 CFR 1191 Americans with Disabilities Act (ADA) Accessibility Guidelines for Buildings and Facilities; Architectural Barriers Act (ABA) Accessibility Guidelines

1.2 SUBMITTALS

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

submittals not having a "G" designation are for Contractor Quality Control approval. When used, a designation following the "G" designation identifies the office that will review the submittal for the Government.

Submit the following in accordance with Section 01 33 00 SUBMITTAL

PROCEDURES:

SD-02 Shop Drawings

Detailed Installation Drawings; G, AE

Fabrication Drawings; G, AE

SD-03 Product Data

Access Flooring System; G, AE

Recycled Content of Access Flooring System; S, AE

Indoor Air Quality For Pedestal Adhesive; S, AE

Indoor Air Quality For Adhesives; S, AE

SD-04 Samples

Floor Panels

Floor Covering; G, RO

Panel Support System

SECTION 09 69 13 Page 4Am #0006

Accessories; G, RO

Fascia; G, RO

Exposed Step and Ramp Structure; G, RO

Railings; G, RO

Cut Outs; G, RO

SD-05 Design Data

Seismic Calculations

SD-06 Test Reports

Factory Tests

Concentrated Load

Uniform Live Load

Rolling Load

Impact Load

Ultimate Load

Stringer Load

Pedestal Axial Load

Bonding Strength of Pedestal Adhesive

Electrical Resistance

Field Tests

SD-07 Certificates

Compliance with ICC-ES AC300; G, AE

Compliance with ICC IBC; G, AE

Certificate of Compliance; G, AE

Qualification of Manufacturer; G, AE

SD-10 Operation and Maintenance Data

Operation and Maintenance Manuals; G, RO

SD-11 Closeout Submittals

Lifting Device

Warranty; G

SECTION 09 69 13 Page 5Am #0006

1.3 SPARE PARTS

Provide four spare panels with identical floor covering pedestals and stringers for each 1,000 square feet of access flooring and total of 5 linear feet of cut-out trim. Store extra stock in same manner and location as project materials.

1.4 QUALITY CONTROL

1.4.1 Qualification of Manufacturer

Access flooring manufacturer must have at least 5 years experience in manufacturing access flooring systems. Certify that the manufacturer of the access flooring system meets requirements specified under paragraph entitled QUALIFICATION OF MANUFACTURER.

1.5 DELIVERY, STORAGE, AND HANDLING

1.5.1 Delivery

Deliver materials to site in undamaged condition, in original containers or packages, complete with accessories and instructions. Label packages with manufacturer's name and brand designations. Package materials covered by specific references bearing specification number, type and class as applicable.

1.5.2 Storage

Store all materials in original protective packaging in a safe, dry, and clean location. Store panels at temperatures between 40 and 90 degrees F, and between 20 and 70 percent humidity. Replace defective or damaged materials.

1.5.3 Handling

Handle and protect materials in a manner to prevent damage during the entire construction period.

1.6 WARRANTY

Minimum manufacturer warranty must have no dollar limit, cover full system, and must have a minimum duration of 5 years. Include an agreement to repair or replace floor panels, pedestals or stringers that fail within the warranty period in the standard performance guarantee or warranty.

Failures include, but are not limited to, sagging and warping of panels;

rusting and manufacturers defects of panels or support system. For static-dissipative vinyl tile provide manufacturer's standard performance guarantees or warranties that extend beyond one year, standard warranty must not be less than a five year wear warranty and ten year conductivity warranty.

PART 2 PRODUCTS

2.1 SYSTEM DESCRIPTION

a. Provide for self-alignment of floor panels, adjustable pedestals and readily removable floor panels covered as specified.

b. Lateral stability of floor support system must be independent of

SECTION 09 69 13 Page 6Am #0006 panels. Provide a finished assembly that is rigid and free of vibration, noises, and rocking panels. Provide bolted stringer system with equipotential plane grounding.

c. Submit certificate of compliance attesting that the installed access floor system meets specification requirements, including all special equipment loads and specific electrical and or cable requirements for the complete access flooring system including, but not limited to the following:

(1) Compliance with ICC-ES AC300 and Compliance with ICC IBC Acceptance Criteria for Access Floors.

(2) Load-bearing capabilities of pedestals, floor panels, and pedestal adhesive resisting force.

(3) Supporting independent laboratory test reports. For panel, stringer and pedestal load test results include concentrated loads at center of panel, panel edge midpoint, ultimate loads and uniform loads.

(4) Floor electrical characteristics.

(5) Material requirements.

d. Submit manufacturer's product data for access flooring system consisting of descriptive data, catalog cuts, and installation instructions. Include in the data information about any design and production techniques, total system including all accessories and finish coatings of under-floor components, procedures and policies used to conserve energy, reduce material, improve waste management or incorporate green building/recycled products into the manufacturer of their components or products. Include cleaning and maintenance instructions. Systems which contain zinc electroplated anti-corrosion coatings are prohibited.

2.1.1 Design Requirements

Conduct floor panel testing in accordance with CISCA Access Floors. When tested as specified, make all deflection and deformation measurements at the point of load application on the top surface of the panel. Floor panels must be capable of supporting the following loads:

a. Concentrated load of 1250 pounds on one square inch, at any point on panel, without a top-surface deflection more than 0.10 inch, and a permanent set not to exceed 0.01 inch in any of the specified tests.

Testing must be in accordance with CISCA Access Floors, Section 1 Concentrated Loads with test panels being supported by understructure to be used with installed system instead of steel support blocks.

b. Uniform live load of 800 psf, without a top-surface deflection more than 0.06 inch, and a permanent set not to exceed 0.01 inch in any of the specified tests, when tested in accordance with CISCA Access Floors, Section 7 Uniform Load Test with test panels being supported by understructure to be used with installed system instead of steel support blocks.

c. A rolling load of 1500 pounds applied through a 3 inch diameter by 1-13/16 inch wide caster for 10 cycles over the same path, without

SECTION 09 69 13 Page 7Am #0006 developing a local overall surface deformation greater than 0.04 inch.

In accordance with CISCA Access Floors, Section 3 Rolling Loads, the permanent deformation limit under rolling load must be satisfied in all of the specified tests.

d. An impact load of 150 pounds anywhere on the panel dropped from a height of 36 inches onto a 1 square inch area without failure of the system, according to CISCA Access Floors, Section 8 Drop Impact Load Test.

e. Ultimate Load. Panels must meet manufactures published Ultimate Load rating of 3100 pounds when tested in accordance with CISCA Access Floors, Section 2 Ultimate Loading.

f. Safety Factor. Panels must provide a minimum Safety Factor of 5 times the uniform load specified above in accordance with ICC-ES AC300.

g. Recycled Content. Provide Access Flooring System (panels, stringers and pedestals) containing a minimum of 20 percent recycled content.

Provide data identifying percentage of recycled content of access flooring system.

2.1.2 Allowable Tolerances

2.1.2.1 Floor Panel Flatness

Plus or minus 0.035 inches on diagonal on top of panel or underneath edge.

2.1.2.2 Floor Panel Length

Plus or minus 0.015 inch.

2.1.2.3 Floor Panel Squareness

Plus or minus 0.02 inch in panel length.

2.1.3 Stringers

Provide stringers capable of supporting a 450 pound concentrated load at midspan without permanent deformation in excess of 0.010 inch, when tested in accordance with CISCA Access Floors, Section 4 Stringer Load Testing.

2.1.4 Pedestals

Pedestals must be capable of supporting a 5000 pound axial load without permanent deformation, when tested in accordance with CISCA Access Floors, Section 5 Pedestal Axial Load Test.

2.1.5 Bonding Strength of Pedestal Adhesive

Adhesive for anchoring pedestal bases must have a bonding strength capable of resisting an overturning moment of 1,000 lbf-in when a force is applied to the top of the pedestal in any direction, when tested in accordance with CISCA Access Floors, Section 6 Pedestal Overturning Moment Test.

Pedestal adhesive must meet emissions requirement of CDPH SECTION 01350 (use the office or classroom requirements, regardless of space type).

Provide validation of indoor air quality for pedestal adhesive.

SECTION 09 69 13 Page 8Am #0006

2.1.6 Bond Strength of Factory Installed Covering

Bond strength of floor covering must be sufficient to permit handling of the panels by use of the panel lifting device, and to withstand moving caster loads up to1000 pounds, without separation of the covering from the panel.

2.1.7 Seismic Calculations

2.2 FLOOR PANELS

2.2.1 Floor System Drawings And Planer Quality

a. Submit Fabrication Drawings for elevated floor systems consisting of fabrication and assembly details to be performed in the factory.

b. Indicate on Location Drawings exact location of pedestals, ventilation openings, cable cutouts, and the panel installation pattern.

c. Provide Detail Drawings showing details of the pedestals, pedestal-floor interlocks, floor panels, panel edging, floor openings, floor opening edging, floor registers, floor grilles, cable cutout treatment, perimeter base, expansion, and peripheral support facilities.

d. Design and workmanship of the floor, as installed, must be completely planar within plus or minus 0.060 inch in 10 feet, 0.100 inch for the entire floor, and 0.030 inch across panel joints.

e. Floor-panel joint-width tolerances must not exceed 0.017 inch as measured with a feeler gage at any point in any joint when the panels are installed and as long as the air leakage requirements specified in this section are met.

2.2.2 Detailed Installation Drawings

Submit Detailed Installation Drawings that as a minimum indicate the following:

a. Location of panels

b. Layout of supports, panels, and cutout locations

c. Stair, handrail, and ramp framing

d. Sizes and details of components

e. Details at floor perimeter and height above structural floor

f. Method of anchorage to structural subfloor

g. Lateral bracing

h. Typical cutout details

i. Gasketing, return air grilles, supply air registers, and perforated panels. Include air transfer capacity of grilles, registers and panels

j. Description of factory coating

SECTION 09 69 13 Page 9Am #0006

k. Floor finishes

l. Location of connection to building grounding electrode

2.2.3 Panel Construction

a. Base access floor system on a 24 by 24 inch square module providing raised floor finish 24 inch above finish floor height. Fabricate so accurate job cutting and fitting may be done using standard sizes for perimeters and around columns.

b. Do not expose metal on finished top surface of panels. Provide cutouts and cutout closures to accommodate utility systems and equipment intercabling. Reinforce cutouts to meet design load requirements. Provide extra support pedestals at each corner of cutout for cutout panels that do not meet specified design load requirements.

c. Panel design must provide for convenient panel removal for underfloor servicing and for openings for new equipment. Use panels of uniform dimensions within specified tolerances. Permanently mark panels to indicate load rating and model number.

d. Machine square floor panels to within plus or minus 0.015 inch with edge straightness plus or minus 0.0025 inch. If plastic edging is applied to the panel, the tolerances apply to the panel before the plastic edging is applied.

e. Provide panels with holes drilled in corners to align precisely with threaded holes in pedestal heads and to accept countersunk corrosion resistant screws with heads that are flush with top of panel.

2.2.3.1 Cementitious-Filled Formed Steel (Composite Panels)

a. Provide composite panels of die-formed steel construction totally enclosing the panel, including the top surface. The void spaces between the top sheet and the formed steel bottom sheet must be completely filled with an incombustible cementitious or concrete material. Seal cut edges in accordance with manufacturer's recommendations. Gravity held panels with bolted stringer understructure: Fasten end of each stringer and mid-point of each 4 foot stringer positively to pedestal heads, using manufacturer's standard screws. Provide screws that are removable from top.

b. Grid supported panels must be further tested by supporting them at two opposite edges and applying a 500-pound load at the center of a panel selected; the panel must be similarly tested while supported at the other two edges. Weld failure at any point under this loading is not acceptable. This additional test must be applied to one panel per 500 square feet of floor in the system, but in no case less than two panels. When any weld fails, the number of panels designated by the Contracting Officer must be similarly tested; replace those panels that have a weld failure at no cost to the Government.

2.2.4 Floor Covering

Surface floor panels with factory applied finish materials firmly bonded in place with waterproof adhesive. The electrical resistance must remain

SECTION 09 69 13 Page 10Am #0006 stable over the life expectancy of the floor covering. Any anti-static agent used in the manufacturing process must be an integral part of the material, not surface applied. Bolt heads or similar attachments must not rise above the traffic surface. Submit three separate samples of each specified floor covering finish and color.

2.2.4.1 Static-Dissipative Vinyl Tile

Provide factory applied static-dissipative vinyl tile that is a homogeneous vinyl product and conforms to ASTM F1700, Class I monolithic, Type A smooth surface. Staic coeficient of friction (ASTM D2047) must be greater than or equal to 0.60. Provide electrical resistance from surface to surface and surface to ground between 1,000,000 ohms (1.0 x 106) and

1,000,000,000 ohms (1.0 x 109) when tested in accordance with ASTM F150.

Material must consist of one piece to cover the face of the panel.

Provide edge detail that is integral to the finish material.

2.2.5 Accessories

Provide the manufacturer's standard registers, grilles, perforated panels, and plenum dividers type where indicated. Provide registers, grilles, and perforated panels designed to support the same static loads as floor panels without structural failure, and capable of delivering the air volumes indicated. Registers and perforated panels must be 25 percent open area and equipped with adjustable dampers. Submit three samples and colors of each accessory.

2.2.6 Resilient Base

Conform to ASTM F1861, Type TV (thermoplastic vinyl), Style B (coved -installed with resilient flooring). Provide 4 inch high and a minimum 1/8 inch thick wall base. Provide preformed corners in matching height, shape, and color.

2.2.7 Adhesives

Provide adhesives as recommended by the manufacturer. Provide non-aerosol adhesive products that meet either emissions requirements of CDPH SECTION 01350 (use the requirements for either office or classroom, regardless of space type) or VOC content requirements of SCAQMD Rule 1168.

Provide aerosol adhesives that meet either emissions requirements of CDPH SECTION 01350 (use the requirements for office or classroom, regardless of space type) or VOC content requirements of GS-36. Provide validation of indoor air quality for adhesives.

2.2.8 Lifting Device

At turn over provide one floor panel lifting device standard with the floor manufacturer, for each individual floor area (room or corridor).

Furnish a minimum of two devices.

2.3 PANEL SUPPORT SYSTEM

Design support system to allow for 360 degree clearance in laying out cable and cutouts for service to machines and so that panel and stringer together take up maximum of 2 inches. Submit one sample of suspension system proposed for use.

SECTION 09 69 13 Page 11Am #0006

2.3.1 Pedestals

Provide pedestals made of steel or aluminum or a combination thereof.

Ferrous materials must have a factory-applied corrosion-resistant finish.

Provide pedestal base plates with a minimum of 16 square inches of bearing surface and a minimum of 1/8 inch thickness. Pedestal shafts must be threaded to permit height adjustment within a range of approximately 2 inches, to permit overall floor adjustment within plus or minus 0.10 inch of the required elevation, and to permit leveling of the finished floor surface within 0.062 inch in 10 feet in all directions. Provide locking devices to positively lock the final pedestal vertical adjustments in place. Pedestal caps must interlock with stringers to preclude tilting or rocking of the panels.

2.3.2 Stringers

Provide stringers of rolled steel or extruded aluminum, to interlock with the pedestal heads to prevent lateral movement. Provide stringers that can be added or removed after floor is in place.

2.3.3 Gaskets

Provide continuous gasketing at contact surfaces between panel and stringers to deaden sound and seal off the underfloor cavity from above for air tightness, and to maintain panel alignment.

2.4 FASCIA

Provide steel fascia plates at open ends of floor, at sides of ramps and steps, and elsewhere as required to enclose the free area under the raised floor. Steel plates must have a factory applied baked enamel finish.

Fascia plates must be reinforced on the back, and supported using the manufacturer's standard lateral bracing at maximum 4 feet on center.

Provide trim, angles, and fasteners as required. Submit three color samples for fascia.

2.5 STEPS AND RAMPS

Securely fasten steps and ramps to the access flooring system and to the structural floor. Include in the construction standard floor system components and custom components as required, and all supports, fasteners, and trim necessary for a finished installation. Step nosings, threshold strips, and floor bevel strips must be cast or extruded aluminum with non-slip traffic surfaces. Submit three color samples for exposed step and ramp structure.

2.5.1 Steps

Height of risers must comply with applicable codes. Design steps to support a uniform load of 150 psf. Surface treads with the manufacturer's standard non-slip floor finish.

2.5.2 Ramps

Slope of ramps must comply with applicable codes and 36 CFR 1191 Americans with Disabilities Act (ADA). Design ramps to support the same loads as specified for floor panels. Surface ramps with the manufacturer's standard non-slip floor finish.

SECTION 09 69 13 Page 12Am #0006

2.6 RAILINGS

Provide railings compliant with applicable codes and 36 CFR 1191 Americans with Disabilities Act (ADA). As a minimum railings must be of the double rail and post type, fabricated of at least 1 to 1-1/2 inch round seamless aluminum tubing with a satin natural anodized finish. At steps and ramps, make the top rail a minimum of 36 inches high and parallel to the incline. Make the top rail 42 inches high at open ends of the floor.

Guardrails must have intermediate rails or an ornamental pattern such that a sphere 4 inches in diameter cannot pass through. Space posts maximum of 5 feet oc. Provide railings complete with anchorages, floor plates, and end caps. Electronically ground hand rails to raised floor system to prevent static build-up. Submit three color samples for railings.

2.7 FACTORY TESTS

Factory test access flooring, using an independent laboratory, at the same position and maximum design elevation and in the same arrangement as shown on the drawings for installation so as to duplicate service conditions as much as possible.

2.7.1 Load Tests

Conduct floor panel, stringer, and pedestal testing in accordance with CISCA Access Floors to determine deformation and permanent set of panels and sytem due to concentrated, Uniform, rolling, impact and ultimate loading when panels are supported by actual understructure.

2.7.2 Bond Strength of Covering

Conduct test for bond strength of covering in accordance with CISCA Access Floors for rolling loads, except as specified. Panels must be tested with specified hard surface flooring and on the pedestals and stringers as specified for the installed floor. Brace the supports as necessary to prevent sideways movement during the test. Impose a test load of1000 pounds on the test assembly through a 3 inches in diameter and 1 inch wide hard plastic caster. Roll the caster completely across the center of the panel. The panel shall withstand 20 passes of the caster with no delamination or separation of the covering.

2.8 REGISTERS AND GRILLES

Registers and grilles shall be made from extruded aluminum, in powder coat finish, to sustain point loads of 250 pounds per vane without failure or permanent deformation. No part of a grille may project more than 1/8 inch above the floor. Registers and grills are not permitted in a laminate floor tile system.

2.9 PERFORATED AIR SUPPLY PANELS

Provide air supply floor panels that meet the design criteria specified for standard panels, are fabricated of 14-gage perforated steel sheet welded to minimum 16-gage side channels, are covered with high pressure laminate to match standard panels, and have a uniform perforated pattern to allow even air distribution.

2.10 CUT OUTS

Provide cable cutouts finished with rigid polyvinylchloride or molded

SECTION 09 69 13 Page 13Am #0006 polypropylene edging to conform to the appearance level of the floor surface and to cover raw edges of the cutout panel. Extrusion must be of a configuration to permit its effective and convenient use when new cable openings are required. Provide at least 24 feet of additional extrusion for future use. Submit three color samples for cut outs.

a. Provide non-metallic adapter for openings less than 4 inches wide.

Secure adapter adhesively in cutout to preclude removal from panel.

Provide at least two adapters per 1000 square feet for future use.

b. Openings larger than 4 inches wide must use rigid polyvinylchloride or molded polypropylene edging. Perform cutting of panels, including cutouts, outside of the building.

c. When size of cutout reduces the performance requirement of panel, provide intermediate stringers adjacent to cutouts.

PART 3 EXECUTION

3.1 INSTALLATION

Install access flooring at the location and elevation and in the arrangement shown on the approved detailed installation drawings. The floor system must be of the rigid grid stringer type, complete with all supplemental items, and be the standard product of a manufacturer specializing in access flooring systems.

Install the floor system in accordance with the manufacturer's instructions. Open ends of the floor, where the floor system does not abut wall or other construction, must have positive anchorage and rigid support. Maintain areas to receive access flooring between 60 and 90 degrees F, and between 20 and 70 percent humidity for 24 hours prior to and during installation.

3.1.1 Preparation for Installation

Clear out all debris in the area in which the floor system is to be installed. Thoroughly clean structural floor surfaces and remove all dust. Install floor coatings, required for dust or vapor control, prior to installation of pedestals, only if the pedestal adhesive will not damage the coating. If the coating and adhesive are not compatible, apply the coating after the pedestals have been installed and the adhesive has cured.

3.1.2 Pedestals

Pedestals must be accurately spaced, and set plumb and in true alignment.

Set base plates in full and firm contact with the structural floor, and secured to the structural floor with adhesive or steel expansion anchors in accordance with manufacturer's instructions.

3.1.3 Stringers

Interlock stringers with the pedestal caps to preclude lateral movement, spaced uniformly in parallel lines at the indicated elevation.

3.1.4 Auxiliary Framing

Provide auxiliary framing or pedestals around columns and other permanent

SECTION 09 69 13 Page 14Am #0006 construction, at sides of ramps, at open ends of the floor, and beneath panels that are substantially cut to accommodate utility systems. Use special framing for additional lateral support as shown on the approved detailed installation drawings. Provide additional pedestals and stringers designed to specific heights and lengths to meet structural irregularities and design loads. Connect auxiliary framing to main framing.

3.1.5 Panels

Interlock panels with supports in a manner that will preclude lateral movement. Fasten perimeter panels, cutout panels, and panels adjoining columns, stairs, and ramps to the supporting components to form a rigid boundary for the interior panels. Level floors within the specified tolerances. Cut edges of finished panels as recommended by the panel manufacturer. Exposed edges of composite panels must be coated with a silicone rubber sealant or with an adhesive recommended by the panel manufacturer. Secure extruded vinyl edging in place at all cut edges of all panel cut-outs to prevent abrasion of cables. Where the space below the floor is a plenum, close cutouts for conduit and similar penetrations using self-extinguishing sponge rubber or air sealing grommets.

3.1.6 Resilient Base

Apply the base after the floor system has been completely installed.

Install wall base in accordance with manufacturer's printed installation instructions. Prepare and apply adhesives in accordance with manufacturer's printed directions. Tighten base joints and make even with adjacent flooring. Fill voids along the top edge of base at masonry walls with caulk. Roll entire vertical surface of base with hand roller, and press toe of base with a straight piece of wood to ensure proper alignment. Avoid excess adhesive in corners.

3.1.7 Fascia Plates

Cover exposed floor ends and exposed openings of ramps and stairs with prefinished fascia plates.

3.1.8 Repair of Zinc Coating

Repair zinc coating that has been damaged, and cut edges of zinc-coated components and accessories, by the application of a galvanizing repair paint conforming to ASTM A780/A780M. Areas to be repaired must be thoroughly cleaned prior to application of the paint.

3.2 FIELD TESTS

Submit certified copies of test reports from an approved testing laboratory, attesting that the proposed floor system components meet the performance requirements specified.

3.2.1 Acceptance Tests

Conduct acceptance tests after installation of floor system. Make at least one test for each 400 square feet of floor area. Conduct tests in presence of Contracting Officer and representatives of manufacturer and installer. Submit certified copies of test reports from an approved testing laboratory, attesting that the proposed floor system components meet the performance requirements specified.

SECTION 09 69 13 Page 15Am #0006

3.2.2 Grounding

Ground the access flooring system for safety hazard and static suppression. Provide positive contact between components for safe, continuous electrical grounding of entire floor system. Total system resistance from wearing surface of floor to building grounding electrode must be within range of 0.5 to 20,000 megohms.

3.2.2.1 Metal Grilles

Exposed metal is not allowed at wearing surface of access floor system, except at metal grilles and registers. When grilles and metal registers are provided, insulate as required to provide same grounding resistance as wearing surface.

3.2.2.2 Joint Resistance

Electrical joint resistance between individual stringer and pedestal junctions must be less than 0.1 milliohms. Electrical resistance between stringers and floor panels, as mounted in normal use, must be less than 3 ohms when tested in accordance with ASTM F150.

Surface to ground resistance shall be as follows:

Static Dissipative Flooring shall have a resistance to earth between 1x10^6 to 1x10^9 Ohms.

When tested, must be in accordance with ASTM F150. All other flooring types shall be within the range of 0.5 to 20,000 Megohms.

3.2.3 Electrical Resistance

Conduct testing of electrical resistance, in the completed installation, in the presence of the Contracting Officer in accordance with NFPA 99, modified by placing one electrode on the center of the panel surface and connecting the other electrode to the metal flooring support. Take measurements at five or more locations. Each measurement must be the average of five readings of 15 seconds duration at each location. During the tests, relative humidity must be 45 to 55 percent and temperature set at 69 to 75 degrees F. Select panels used in the testing at random and include two panels most distant from the ground connection. Measure electrical resistance with instruments that are accurate within 2 percent and that have been calibrated within 60 days prior to the performance of the resistance tests.