S06 - Spec 12 36 00.pdf

12-01-18

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SECTION 12 36 00

COUNTERTOPS

PART 1 - GENERAL

1.1 DESCRIPTION

A. This section specifies casework countertops with integral accessories.

B. Integral accessories include:

1. Sinks with traps and drains.

1.2 RELATED WORK

B. DIVISION 22, PLUMBING.

C. DIVISION 26, ELECTRICAL.

D. Equipment Reference Manual for SECTION 12 36 00, COUNTERTOPS.

1.3 SUBMITTALS

A. Submit in accordance with SECTION 01 33 23, SHOP DRAWINGS, PRODUCT

DATA, AND SAMPLES.

B. Shop Drawings

1. Show dimensions of section and method of assembly.

2. Show details of construction at a scale of ½ inch to a foot.

C. Samples:

1. 150 mm (6 inch) square samples each top.

2. Front edge, back splash, end splash and core with surface material and booking.

1.4 APPLICABLE PUBLICATIONS

A. Publications listed below form a part of this specification to the extent referenced. Publications are referenced in the text by the basic designation only.

B. American Hardboard Association (AHA):

A135.4-95...............Basic Hardboard

C. Composite Panel Association (CPA):

A208.1-09...............Particleboard

D. American Society of Mechanical Engineers (ASME):

A112.18.1-12............Plumbing Supply Fittings

A112.1.2-12.............Air Gaps in Plumbing System

A112.19.3-08(R2004).....Stainless Steel Plumbing Fixtures (Designed for

Residential Use)

E. American Society for Testing and Materials (ASTM):

A167-99 (R2009).........Stainless and Heat-Resisting Chromium-Nickel

Steel Plate, Sheet and Strip

"ACCOMPANYING AMENDMENT 36C25221B0018 - 0001"

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A1008-10................Steel, Sheet, Cold-Rolled, Carbon, Structural, High Strength, Low Alloy

D256-10.................Pendulum Impact Resistance of Plastic

D570-98(R2005)..........Water Absorption of Plastics

D638-10.................Tensile Properties of Plastics

D785-08.................Rockwell Hardness of Plastics and Electrical

Insulating Materials

D790-10.................Flexural Properties of Unreinforced and

Reinforced Plastics and Electrical Insulating

Materials

D4690-99(2005)..........Urea-Formaldehyde Resin Adhesives

F. Federal Specifications (FS):

A-A-1936................Adhesive, Contact, Neoprene Rubber

G. U.S. Department of Commerce, Product Standards (PS):

PS 1-95.................Construction and Industrial Plywood

H. National Electrical Manufacturers Association (NEMA):

LD 3-05.................High Pressure Decorative Laminates

SPEC WRITE NOTE: Update materials requirements to agree with applicable requirements (types, grades, classes,) specified in the referenced Applicable Publications.

PART 2 - PRODUCTS

2.1 MATERIALS

K. Solid Polymer Material:

1. Filled Methyl Methacrylic Polymer.

2. Performance properties required:

Property Result Test

Elongation 0.3% min. ASTM D638

Hardness 90 Rockwell M ASTM D785

Gloss (600 Gordon) 5-20 NEMA LD3.1

Color stability No change NEMA LD3 except 200 hour

Abrasion resistance

No loss of pattern Max wear depth 0.0762 mm (0.003 in) - 10000 cycles

NEMA LD3

Water absorption weight (5 max)

24 hours 0.9 ASTM D-570

Izod impact 14 N·m/m (0.25 ft-lb/in)

ASTM D256

(Method A)

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Property Result Test

Impact resistance No fracture NEMA LD-3 900 mm (36") drop 1 kg (2 lb.) ball

Boiling water surface resistance

No visible change NEMA LD3

High temperature resistance

Slight surface dulling NEMA LD3

3. Cast into sheet form and bowl form.

4. Color throughout with subtle veining through thickness.

5. Joint adhesive and sealer: Manufacturers silicone adhesive and sealant for joining methyl methacrylic polymer sheet.

6. Bio-based products will be preferred.

2.2 SINKS

B. Stainless Steel:

1. ANSI/ASME A112.19.3, Type 304.

2. Self rim for plastic laminate or similar tops with concealed fasteners.

3. Flat rim for welded into stainless steel tops.

4. Ledge back or ledge sides with holes to receive required fixtures when mounted on countertop.

5. Apply fire resistant sound deadening material to underside.

C. Stainless steel circular or oval shaped bowl.

2.3 TRAPS AND FITTINGS

A. Material as specified in DIVISION 22, PLUMBING.

C. For Stainless Steel Sinks:

1. Either cast or wrought brass or stainless steel P-traps and drain fittings; ASME A112.18.1

2. Flat strainer, except where cup strainer or overflow standpipe specified.

a. Provide cup strainer in cabinet type 1B.

b. Provide stainless steel overflow stand pipe to within 38 mm (1-

1/2 inches) of sink rim.

3. Exposed surface chromium plated finish.

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2.4 WATER FAUCETS

A. ASME A112.18.1.

1. Cast or forged brass, compression type with replaceable seat and stem assembly or replaceable cartridge.

2. Indexed four-arm handles either with or without head.

3. Gooseneck minimum clearance above countertop of 190 mm (7-1/2 inches), bent 180 degrees for vertical discharge.

4. Swing spouts elevated to clear handles.

5. Exposed brass surfaces chromium plated.

6. Cast combination hot and cold fixture with one piece body for multiple outlets.

7. Adapter type connection which will permit field conversion of swing spouts to fixed or gooseneck grouts or vice versa.

8. Pedestals Top for Laboratory or Pharmacy:

a. Modern design tapered to a round base, factory assembled and tested.

b. Brass shanks, locknuts and washers for attaching to top or curbs.

B. Laminar flow control device on spouts.

C. Automatic Controlled Faucets.

1. Infra-red photocell sensor and a solenoid valve to control water flow automatically.

2. Breaking light beam activates water flow.

3. Water stops when user moves away from light beam.

C.

2.6 FIXTURE IDENTIFICATION

A. Code fixtures with full view plastic index buttons.

B. Use following colors and codes:

SERVICE COLOR CODE COLOR OF LETTERS

Cold Water Dark Green CW White

Hot Water Red HW White

Laboratory Air Orange AIR Black

Fuel Gas Dark Blue GAS White

Laboratory Vacuum Yellow VAC Black

Distilled Water White DW Black

Deionized Water White DI Black

Oxygen Light Green OXY White

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SERVICE COLOR CODE COLOR OF LETTERS

Hydrogen Pink H Black

Nitrogen Gray N Black

All Other Gases Light Blue CHEM.SYM. Black

2.10 COUNTERTOPS

A. Fabricate in largest sections practicable.

B. Fabricate with joints flush on top surface.

C. Fabricate countertops to overhang front of cabinets and end of assemblies 25 mm (one inch) except where against walls or cabinets.

D. Provide 1 mm (0.039 inch) thick metal plate connectors or fastening devices (except epoxy resin tops).

E. Join edges in a chemical resistant waterproof cement or epoxy cement, except weld metal tops.

F. Fabricate with end splashes where against walls or cabinets.

G. Splash Backs and End Splashes:

1. Not less than 19 mm (3/4 inch) thick.

2. Height 100 mm (4 inches) unless noted otherwise.

3. Laboratories and pharmacy heights or where fixtures or outlets occur: Not less than 150 mm (6 inches) unless noted otherwise.

4. Fabricate epoxy splash back in maximum lengths practical of the same material.

H. Drill or cutout for sinks, and penetrations.

1. Accurately cut for size of penetration.

2. Cutout for VL 81 photographic enlarger cabinet.

a. Finish cutout to fit flush with vertical side of cabinet, allowing adjustable shelf to fit into cutout space of cabinet at counter top level. Finish cutout surface as an exposed edge.

b. Provide braces under enlarger space to support not less than 45 kg (100 pounds) centered on opening side along backsplash.

I.

PART 3 - EXECUTION

3.1 INSTALLATION

A. Before installing countertops verify that wall surfaces have been finished as specified and that mechanical and electrical service locations are as required.

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B. Secure countertops to supporting rails of cabinets with metal fastening devices, or screws through pierced slots in rails.

1. Where type, size or spacing of fastenings is not shown or specified, submit shop drawings showing proposed fastenings and method of installation.

2. Use round head bolts or screws.

3. Use epoxy or silicone to fasten the epoxy resin countertops to the cabinets.

4. Use wood or sheet metal screws for wood or plastic laminate tops;

minimum penetration into top 16 mm (5/8 inch), screw size No 8, or

10.

D. Sinks

1. Install stainless steel sink to form watertight seal under shelf rim.

b. Install faucets and fittings on sink ledges with watertight seals where shown.

2. Install molded resin sinks with epoxy compound to form watertight seal with underside of molded resin top.

a. Install sink with not less than two channel supports with threaded rods and nuts at each end, expansion bolted to molded resin top.

b. Design support for a twice the full sink weight.

c. Install with overflow standpipes.

3.

3.2 PROTECTION AND CLEANING

A. Tightly cover and protect against dirt, water, and chemical or mechanical injury.

B. Clean at completion of work.

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