36C25818B0332-023.docx

SECTION 22 66 00

CHEMICAL-WASTE SYSTEMS FOR LABORATORY AND HEALTHCARE FACILITIES

PART 1 - GENERAL

1.1 DESCRIPTION

A. This section describes the requirements for chemical waste systems, including piping, neutralization equipment and all necessary accessories as designated in this section.

B. A complete listing of all acronyms and abbreviations are included in Section 22 05 11, COMMON WORK RESULTS FOR PLUMBING.

1.2 RELATED WORK

A. Section 01 00 00, GENERAL REQUIREMENTS.

B. Section 01 33 23, SHOP DRAWINGS, PRODUCT DATA, AND SAMPLES.

C. Section 01 91 00, GENERAL COMMISSIONING REQUIREMENTS.

D. Section 07 84 00, FIRESTOPPING: Penetrations in rated enclosures.

E. Section 07 92 00, JOINT SEALANTS.

F. Section 09 91 00, PAINTING: Preparation and finish painting and identification of piping systems.

G. Section 22 05 11, COMMON WORK RESULTS FOR PLUMBING.

H. SECTION 22 08 00, COMMISSIONING OF PLUMBING SYSTEMS.

1.3 APPLICABLE PUBLICATIONS

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

B. American Society of Mechanical Engineers (ASME):

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

D. International Code Council (ICC):

IPC-2012 International Plumbing Code E. Underwriters' Laboratories, Inc. (UL):

723-2008 Test for Surface Burning Characteristics of Building Materials

1.4 SUBMITTALS

A. Submittals, including number of required copies, shall be submitted in accordance with Section 01 33 23, SHOP DRAWINGS, PRODUCT DATA, AND SAMPLES.

B. Information and material submitted under this section shall be marked “SUBMITTED UNDER SECTION 22 66 00, CHEMICAL-WASTE SYSTEMS FOR LABORATORY AND HEALTHCARE FACILITIES”, with applicable paragraph identification.

C. Manufacturer's Literature and Data including: Full item description and optional features and accessories. Include dimensions, weights, materials, applications, standard compliance, model numbers, size, and capacity.

1. Chemical resistant waste and vent piping

2. Piping specialties

3. Neutralization tanks

4. Continuous flow neutralization and monitoring system

5. Cleanouts

6. Waterproofing D. Detailed shop drawing of clamping device and extensions when required in connection with the waterproofing membrane or the floor drain.

E. Shop Drawings: For neutralization system. Include plans, elevations, sections, details, and in junction with Architectural work.

1. Detail neutralization-system assemblies and indicate dimensions, weights, loads, required clearances, method of field assembly, components, and location and size of each field connection.

2. Wiring Diagrams: For power, signal, and control wiring.

F. Seismic-Design Submittal: For seismic restraints of aboveground piping, including analysis data signed and sealed by the qualified professional engineer responsible for their preparation.

G. Complete operating and maintenance manuals including wiring diagrams, technical data sheets and information for ordering replaceable parts:

1. Include complete list indicating all components of the systems.

2. Include complete diagrams of the internal wiring for each item of equipment.

3. Diagrams shall have their terminals identified to facilitate installation, operation and maintenance.

H. Completed System Readiness Checklist provided by the Commissioning Agent and completed by the contractor, signed by a qualified technician and dated on the date of completion, in accordance with the requirements of Section 22 08 00, COMMISSIONING OF PLUMBING SYSTEMS.

I. Submit training plans and instructor qualifications in accordance with the requirements of Section 22 08 00, COMMISSIONING OF PLUMBING SYSTEMS.

1.5 QUALITY ASSURANCE

A. Bio-Based Materials: For products designated by the USDA’s Bio-Preferred Program, provide products that meet or exceed USDA recommendations for bio-based content, so long as products meet all performance requirements in this specifications section. For more information regarding the product categories covered by the Bio-Preferred Program, visit http://www.biopreferred.gov.

1.6 AS-BUILT DOCUMENTATION

A. Submit manufacturer’s literature and data updated to include submittal review comments, construction revisions and any equipment substitutions.

B. The installing contractor shall maintain as-built drawings of each completed phase for verification; and, shall provide the complete set at the time of final systems certification testing. As-built drawings are to be provided, and a copy of them on Auto-Cad version 2013 provided on compact disk or DVD. Should the installing contractor engage the testing company to provide as-built or any portion thereof, it shall not be deemed a conflict of interest or breach of the ‘third party testing company’ requirement.

C. Certification documentation shall be provided prior to submitting the request for final inspection. The documentation shall include all test results, the names of individuals performing work for the testing agency on this project, detailed procedures followed for all tests, and a certification that all results of tests were within limits specified.

1.7 PROJECT CONDITIONS

A. Interruption of Existing Chemical-Waste Service: Do not interrupt chemical-waste service to facilities occupied unless permitted under the following conditions and then only after arranging to provide temporary chemical-waste service according to requirements indicated:

1. Provide written notice to COR no fewer than 21 days in advance of proposed interruption of chemical-waste service.

2. Do not proceed with interruption of chemical-waste service without COR’s written permission.

PART 2 - PRODUCTS

2.1 CHEMICAL RESISTANT WASTE AND VENT PIPING

A. The material shall include connecting fittings in stacks or mains.

B. The chemical resistant waste and vent pipe material shall be BSG pipe Class BSG-1 with drainage pattern fittings tempered and annealed conforming to ASTM C1036, coupling per AISI Type 304 corrosion-resistant steel lined with Buna-N resilient member supporting a TFE liner, ensuring that the liner is the only material wetted by waste stream.

C. The chemical resistant waste and vent pipe material shall be extruded polypropylene plastic pipe and drainage pattern fittings conforming to ASTM F1412 and tested in accordance with applicable provisions of ASTM D2447. The polypropylene pipe and fittings shall be schedule 40 and made from a PP black olefin resin with a fire retardant additive complying with ASTM D4101 with mechanical joints for sizes under 3 inches (DN75) and fusion and mechanical joints for sizes 3 inches (DN75) and over.

1. Exception: Pipe and fittings made from PP resin without fire-retardant additive may be used for underground installation. Comply with applicable provisions of ASME B16.12 for material dimensions and configurations.

D. The chemical resistant waste and vent pipe material shall be PVDF pipe and drainage pattern fittings conforming to ASTM F1673. The PVDF pipe and fittings shall be schedule with mechanical joints for sizes under 75 mm (3 inches) and fusion and mechanical joints for sizes 75 mm (3 inches) and over. Mechanical joints shall be used at all traps and trap arms.

1. Exception: Underground piping joints shall be fusion weld.// E. //The chemical resistant waste and vent pipe material shall be Type 316L stainless steel pipe and drainage pattern fittings conforming to ASME A112.3.1 and ASTM A666. The stainless steel pipe shall have socket and spigot ends for gasket joints having piping manufacturer’s FPM lip-seal rubber gaskets shaped to fit socket groove with plastic backup ring.// F. //Chlorinated Poly (Vinyl Chloride) (CPVC) pipe shall be manufactured from CPVC Type IV, ASTM Cell Classification 23447 and in strict accordance to the requirements of ASTM F2618 for physical dimensions and tolerances and certified by NSF International for corrosive waste end use (NSF-cw). Joining method for pipe and fittings shall be solvent cement welding. Solvent cement shall be a solvent cement specially formulated for resistance to corrosive chemicals and manufactured in accordance with ASTM F 493. This pipe shall have a flame spread rating of < 25 and a smoke development rating of < 50 when tested for surface burning characteristics in accordance with ASTM E84 and UL 723 or equivalent.//

2.2 PIPING SPECIALTIES

A. Plastic dilution traps shall be corrosion resistant polypropylene with removable base and mechanical joint connections. The dilution tanks shall have a 3.8 liter (one gallon) capacity with a clear base unless color base is indicated. The dilution tank shall have two 40 mm or DN40 (NPS 1-1/2) top inlets and one 40 mm or DN40 (NPS 1-1/2) side outlet.

B. Corrosion resistant P-trap shall have 40 mm or DN40 to 50 mm or DN50 (NPS 1-1/2 or NPS 2) as required for fixture and waste and conform to, ASTM D4101 for polypropylene pipe with mechanical joints, ASTM D3222 for PVDF pipe with mechanical joints, and ASTM C1053 for glass pipe with coupling connections.

2.3 NEUTRALIZATION TANKS

A. Plastic neutralization tanks shall be constructed from corrosion resistant plastic materials //HDPE// //HDPE or ASTM D4101, PP// //ASTM D4101, PP// with removable, gastight cover, inlet, vent, and discharge sidewall pipe connections. The tank shall be filled with limestone 25 to 75 mm (1 to 3 inch) chips or lumps with // a calcium carbonate content exceeding 90 percent // dolomitic limestone 25 to 75 mm (1 to 3 inch) chips or lumps with more than 90 percent combined magnesium carbonate and calcium carbonate//.

B. The traffic cover shall be medium duty pedestrian traffic with steel plate cover//.

2.4 CONTINUOUS FLOW NEUTRALIZATION AND MONITORING SYSTEM

A. The plastic tank acid neutralization monitoring system shall use a 120-volt factory wired and tested control system to continuously monitor the pH level of effluent with wiring and electrical power terminals. The monitoring system shall power the probes and the metering pumps.

B. The panel shall be NEMA 250 Type 4X enclosure with the following features:

1. Control devices.

2. Indicators devices.

3. Power light and on/off switch.

4. pH Analyzer with meter and high and low pH indicators.

5. Low caustic and acid solution level indicators.

6. Alarm horn with silencer and reset switch.

7. Agitator running light with on/off switch.

8. Running lights with on/off switches for caustic and acid solution pumps.

C. The recorder shall have a 30 day record capacity.

D. The piping between the tanks shall be the same material as the chemical waste and vent system.

E. The interceptor tank shall function as a sediment trap and effluent equalization tank and shall be the same material as mixing and neutralization tank with removable, gastight cover, sidewall inlet and outlet connections and vent connection in the top. Internal piping shall be fitted with inlet elbows turned down to prevent settlement from flowing to mixing and neutralization tank.

F. The mixing and neutralization tank shall be constructed from // polypropylene // ceramic // in conformance with ASTM D4101. The pH probe type and length shall be suitable for the size of the mixing tank. The agitator shall be electric with stainless steel shaft and propeller.

G. The caustic solution storage tank shall be constructed from polypropylene in conformance with ASTM D4101. The caustic solution storage tank shall be filled with a sodium hydroxide solution.

H. The acid solution storage tank shall be constructed from polypropylene in conformance with ASTM D4101. The acid solution storage tank shall be filled with a sulfuric acid solution.

I. The metering pump shall be suitable for neutralizing solutions.

J. The sampling tank shall be the same material as the mixing tank with removable, gastight cover, sidewall inlet and outlet connections and an opening in the top for a pH probe.

2.5 CLEANOUTS

A. Cleanouts shall be the same size as the pipe, up to 100 mm or DN100 (4 inches); not less than 100 mm or DN100 (4 inches) for larger pipe. Cleanouts for chemical waste drain pipe shall be of same material as the pipe. Cleanouts shall be easily accessible and shall be gastight and watertight. A minimum clearance of 600 mm (24 inches) shall be provided for clearing a clogged chemical waste drain.

PART 3 - EXECUTION

3.1 PIPE INSTALLATION

A. The pipe installation shall comply with the requirements of the International Plumbing Code and these specifications.

B. Branch piping for chemical waste piping system shall be installed and connected as indicated on the plans.

C. Piping shall be installed for reagent racks. The piping shall be arranged neatly. Pipe shall be round and straight. Cutting shall be done with proper tools. Pipe, except for plastic and glass, shall be reamed to full size after cutting.

D. All pipe runs shall be laid out to avoid interference with other work.

E. The piping shall be installed above accessible ceilings to allow for ceiling panel removal.

F. The piping shall be installed to permit valve servicing or operation.

G. The piping shall be installed at the indicated slopes or according to the International Plumbing Code.

H. The piping shall be installed free of sags and bends.

I. //Seismic restraint shall be installed where required by code.// J. Changes in direction for chemical waste drainage and vent piping shall be made using appropriate branches, bends and long sweep bends. Sanitary tees and short sweep quarter bends may be used on vertical stacks if change in direction of flow is from horizontal to vertical. Long turn double wye branch and eighth bend fittings shall be used if two fixtures are installed back to back or side by side with common drain pipe. Straight tees, elbows, and crosses may be used on vent lines. Do not change direction of flow more than 90 degrees. Proper size of standard increaser and reducers shall be used if pipes of different sizes are connected. Reducing size of drainage piping in direction of flow is prohibited.

K. Aboveground CPVC piping shall be installed according to ASTM F2618. Underground CPVC piping shall be installed according to ASTM D2321.

L. PVDF piping shall be installed according to ASTM F1673 and manufacturer’s recommendations.

M. If an installation is unsatisfactory to the COR, the Contractor shall correct the installation at no cost to the Government.

3.2 JOINT CONSTRUCTION

A. For threaded joints, thread pipe with tapered pipe threads according to ASME B1.20.1. The threads shall be cut full and clean using sharp disc cutters. Threaded pipe ends shall be reamed to remove burrs and restored to full pipe inside diameter. Pipe fittings and valves shall be joined as follows:

1. Apply appropriate tape or thread compound to external pipe threads unless dry seal threading is required by the pipe service.

2. Pipe sections with damaged threads shall be replaced with new sections of pipe.

3.3 SPECIALTY PIPE FITTINGS

A. Transition coupling shall be installed at pipe joints with small differences in pipe outside diameters.

B. Dielectric fittings shall be installed at connections of dissimilar metal piping and tubing.

C. All chemical waste piping shall be joined with specialty fittings in accordance with referenced standards and manufacturer’s recommendations for the applications used.

3.4 NEUTRALIZATION TANK INSTALLATION

A. Install interior neutralization tanks, complete with appurtenances indicated.

1.

B.

Include initial fill of limestone for neutralization tanks.

C. Install interior neutralization tanks on smooth and level floor surface. Include full initial charge of limestone.

3.5 NEUTRALIZATION SYSTEM INSTALLATION

A. Install neutralization systems on smooth and level //floor surface//. Include neutralizing solutions and full initial charge of limestone.

3.6 PIPE HANGERS, SUPPORTS, AND ACCESSORIES

A. All piping shall be supported according to the International Plumbing Code, Section 22 05 11, COMMON WORK RESULTS FOR PLUMBING, and these specifications.

B. Hangers, supports, rods, inserts and accessories used for Pipe supports shall be shop coated with zinc Chromate primer paint. Refer to Section 09 91 00, PAINTING.

C. Horizontal piping and tubing shall be supported within 300 mm (12 inches) of each fitting or coupling.

D. Vinyl coated hangers shall be installed for glass piping. The maximum horizontal spacing and minimum rod diameters shall be:

1. For 25 mm or DN25 to 32 mm DN32 (NPS 1 and NPS 1-1/4), the maximum spacing shall be 1.22 meters (48 inches) with 10 mm (3/8 inch) rod.

2. For 40 mm or DN40 and 50 mm or DN50 (NPS 1-1/2 and NPS 2), the maximum spacing shall be 1.83 meters (72 inches) with 10 mm (3/8 inch) rod.

3. For 75 mm or DN75 (NPS 3 inch), the maximum spacing shall be 1.83 meters (72 inches) with 15 mm (1/2 inch) rod.

4. For 100 mm or DN100 (NPS 4 inch), the maximum spacing shall be 1.83 meters (72 inches) with 18 mm (5/8 inch) rod.

E. Vertical piping and tubing shall be supported at the base, at each floor, and at intervals no greater than 4.6 meters (15 feet).

F. In addition to the requirements in Section 22 05 11, COMMON WORK RESULTS FOR PUMBING, floor, Wall and Ceiling Plates, Supports, and Hangers shall have the following characteristics:

1. Solid or split unplated cast iron.

2. All plates shall be provided with set screws.

3. Height adjustable clevis type pipe hangers.

4. Adjustable Floor Rests and Base Flanges shall be steel.

5. Hanger Rods shall below carbon steel, fully threaded or Threaded at each end with two removable nuts at each end for positioning rod and hanger and locking each in place.

6. Riser Clamps shall be malleable iron or steel.

7. Rollers shall be Cast iron.

8. Hangers and supports utilized with insulated pipe and tubing shall have 180 degree (min.) metal protection shield Centered on and welded to the hanger and support. The shield shall be 100 mm (4 inches) in length and be 16 gauge steel. The shield shall be sized for the insulation.

G. Miscellaneous Materials: As specified, required, directed or as noted on the drawings for proper installation of hangers, supports and accessories.

H. Penetrations:

1. Where pipes pass through fire partitions, fire walls, smoke partitions, or floors, install a firestop system that provides an effective barrier against the spread of fire, smoke and gases as specified in Section 07 84 00, FIRESTOPPING. Clearances between raceways and openings shall be completely filled and sealed with the firestopping materials.

2. At floor penetrations, Clearances around the pipe shall be completely sealed and made watertight with sealant as specified in Section 07 92 00, JOINT SEALANTS.

I. Chemical waste and vent piping shall conform to the following:

1. Where waste lines from fixtures are shown on plans to be chemical resistant, vents from those fixtures shall also be chemical resistant.

2. Storage and installation for PVDF or CPVC chemical resistant pipe shall comply with ASTM D2665.

3. Glass Pipe installation shall be as recommended by the manufacturer. Glass pipe pitch shall be 1 : 50 (1/4 inch per foot), minimum.

4. Mechanically Joined Polypropylene Pipe requires a pre-grooved pipe or cutting of a groove in each pipe section using a rotation cutting tool. Polypropylene chemical resistant pipe pitch shall be 6 mm minimum (1/4 inch per foot) minimum. Mechanically joined pipe shall not be installed below grade.

5. Plastic chemical waste pipe shall not be installed within 23 m (75 feet) of hot water appliances (autoclaves, dishwashers, sterilizers) and similar equipment.

3.7 TESTS

A. The chemical resistant pipe system shall be tested either in its entirety or in sections.

B. Tests for Chemical Resistant Waste and vent shall be conducted. A water test or air test shall be conducted as directed.

1. Entire system is tested using a water test, tightly close all openings in pipes except highest opening, and fill system with water to point of overflow. If system is tested in sections, tightly plug each opening except highest opening of section under test, fill each section with water and test with at least a 3 m (10 foot) head of water. In testing successive sections, test at least upper 3 m (10 feet) of next preceding section so that each joint or pipe except upper most 3 m (10 feet) of system has been submitted to a test of at least a 3 m (10 foot) head of water. Water shall be kept in system, or in portion under test, for at least 15 minutes before inspection starts. System shall then be tight at all joints.

2. Final Tests: Either one of the following tests may be used.

a. Smoke Test: After fixtures are permanently connected and traps are filled with water, fill entire drainage and vent systems with smoke under pressure of 1.3 kPa (1 inch of water) with a smoke machine. Chemical smoke is prohibited.

b. //Peppermint Test: Introduce 60 ml (two ounces) of peppermint into each line or stack.//

3.8 STARTUP AND TESTING

A. As recommended by product manufacturer and listed standards and under actual or simulated operating conditions, tests shall be conducted to prove full compliance with design and specified requirements. Tests of the various items of equipment shall be performed simultaneously with each integrated system.

B. The tests shall include system capacity, control function, and alarm functions.

C. When any defects are detected, correct defects and repeat test at no additional costs to the Government.

D. //The Commissioning Agent will observe startup and contractor testing of selected equipment. Coordinate the startup and contractor testing schedules with the Contracting Officer’s Representative and Commissioning Agent. Provide a minimum of 7 days prior to notice.//

3.9 COMMISSIONING

A. Provide commissioning documentation in accordance with the requirements of Section 22 08 00, COMMISSIONING OF PLUMBING SYSTEMS.

B. Components provided under this section of the specification will be tested as part of a larger system.

3.10 DEMONSTRATION AND TESTING

A. Provide services of manufacturer’s technical representative for four hours to instruct VA Personnel in operation and maintenance of the system.

B. Submit training plans and instructor qualifications in accordance with the requirements of Section 22 08 00, COMMISSIONING OF PLUMBING SYSTEMS.

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CHEMICAL-WASTE SYSTEMS FOR LABORATORY AND HEALTHCARE FACILITIES

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