Specifications - ESD Control Flooring - Surfaces

References

ASTM F 150: Electrical Resistance.
ASTM E 84: Surface Burning Characteristics of Building Materials.
ASTM E 648: Critical Radiant Flux of Floor Covering Systems.
ASTM E 662: Smoke Generation Characteristics of Solid Materials.
NFPA 101: Life Safety Code.
ANSI/ ASTM FISCO: Test method code for fixed electrical resistance of conductive resilient flooring. RETAIN PARAGRAPHS G AND H FOR CONDUCTIVE FLOORING
ANSI/ UL 779: Electrically Conductive Floorings.
NFPA 99: Standard for Health Care Facilities.

Warranty

Provide manufacturer's warranty under provisions of Section [01700.] [01740.]
Warranty: Include one year warranty that products are free from defects in materials and workmanship. Include five-year warranty for electrical resistance.

Acceptable Manufacturers

Floor Covering Materials

Conductive Resilient floor Tile: electrical resistance, 25,000-1,000,000 ohms; [FS SS-T-312B, Type III] VPI Conductile; [12 x 12 inch] [36 x 36 inch square edge] [36 x 36 inch pregrooved] x 1/8 inch thick; color and pattern [selected.] [scheduled.]
Static Dissipative Resilient floor Tile: Electrical resistance, floor to ground -- 1,000,000 - 100,000,000 ohms; [FS SS-T-312B, Type III] VPI Statmate; [12 x 12 inch] [36 x 36 inch square edge] [36 x 36 inch pre-grooved] x 1/8 inch thick; color and pattern [selected.] [scheduled]
Access Floor panels, 24" square.

Manufacturing Tolerances

Micro-squared 12 x 12 inch tile to plus or minus 0.002 inch; cut vertical edges perpendicular to tile surface.
Precision control gauge to assure smooth surface with no high edges.

Adhesives

Flooring Adhesives: VPI No. 150 Conductive Epoxy Adhesive as provided by flooring manufacturer for specific use.

Source Quality Control

Test each individual tile for electrical resistance before packaging.
Test each batch of conductive adhesive for electrical resistance before shipment.

Examination

Verify that [stranded ground wire is in place at floor-wall juncture, and is properly connected to ground.] [steel column in area is suitable for grounding.] CONSULT WITH MANUFACTURER FOR PRECAUTIONS WHEN SUBSTRATE IS LIGHTWEIGHT AGGREGATE CONCRETE, MAGNESITE FLOORING, OR FOR BELOW-GRADE CONDITIONS.
Verify that concrete subfloors on or below-grade are installed over a suitable moisture retardant membrane.
Ensure concrete floors are dry and exhibit neutral alkalinity, carbonization, or dusting. Maximum moisture emission: Three lb./1000 sq. ft./24 hours. MOISTURE TEST KITS ARE AVAILABLE; MOISTURE TESTS ARE RECOMMENDED.
Ensure floor surfaces are smooth and flat with maximum variation of 1/8 inch in 10 feet.
Ensure floor surfaces are clean and free from dust, paint, oil, grease, curing agents, parting compounds, surface hardeners, sealers, solvents, old adhesives, and other extraneous substances.
Beginning of installation means acceptance of surfaces and conditions.

Installation

Grounding

Connect copper grounding strip provided by flooring manufacturer to stranded ground wire; cut small recess into wall or floor and place grounding strip and ground wire into hole; bury connection in conductive adhesive filled to floor level or wall surface. OR
Drill and tap steel column; connect grounding strip to column in accordance with manufacturer's instructions.
Lay balance of grounding strip flat in conductive adhesive on floor and cover with additional adhesive. Install flooring over grounding strip.

Field Quality Control

Test completed installation by factory representative in presence of Architect and Owner, in accordance with the test procedures of NFPA 99 or ANSI/ASTM F 150.

Protection

Cleaning

Remove excess adhesive from floor, base, and wall surfaces without damage, while adhesive is still wet.
Clean floor and base surfaces in accordance with manufacturer's instructions.