Chemical Fume Hoods and Biologocal Safety Cabinets - DOC - DOC

Document Sample
Chemical Fume Hoods and Biologocal Safety Cabinets - DOC - DOC Powered By Docstoc
					MDACC Project No. XX-XXXX                                                      MDACC PROJECT NAME
A/E Name                                                                             Issue Description
A/E Project No.                                                                       Month, 00, 0000

SECTION 11 53 13 – CHEMICAL FUME HOODS AND BIOLOGICAL SAFETY CABINETS


PART 1 - GENERAL

1.01   RELATED DOCUMENTS

       A. Drawings and general provisions of the Contract, including General and Supplementary
          Conditions and Division 01 Specification Sections, apply to this Section.

       B. Specifications throughout all Divisions of the Project Manual are directly applicable to this
          Section, and this Section is directly applicable to them.

1.02   SUMMARY

       A. Furnish and install chemical fume hoods and biological safety cabinets complete with
          accessories.

1.03   REFERENCE STANDARDS

       A. The latest published edition of a reference shall be applicable to this Project unless identified
          by a specific edition date.

       B. All reference amendments adopted prior to the effective date of this Contract shall be
          applicable to this Project.

       C. All materials, installation and workmanship shall comply with all applicable requirements and
          standards.

1.04   DEFINITIONS

       A. Plumbing Services Fittings: Gas, air, vacuum, steam and water valves and faucets; remote
          control valves, and vacuum breakers.

       B. Electric Services Fittings: Convenience outlets, switches and control panels.

       C. Plumbing Services Lines: Gas, air, vacuum, steam, water piping, and associated fittings
          necessary to carry respective services from service fixtures through equipment to building
          rough-in outlets in floors or walls.

       D. Electric Service Lines: Conduit, junction boxes, conduit fittings and wire necessary to carry
          electrical services from service fixtures through equipment to building rough-in outlets in
          floors and walls.

       E. Visible Surfaces: Exterior surfaces of closed cabinets, backs of cabinet doors, also interior
          surfaces and shelves of open cabinets and of cabinets with glass or glazed doors.

1.05   QUALITY ASSURANCE

       A. Standards: Except where modified or exceeded by the requirements of this Specification,
          conform to the following standards:

           1. Biological Safety Cabinets: National Sanitation Foundation Standard #49.

           2. Service Fittings: Scientific Apparatus Makers Association Standard for Laboratory and
              Hospital Service Fittings.

 The University of Texas            CHEMICAL FUME HOODS AND BIOLOGICAL SAFETY CABINETS
 MD Anderson Cancer Center                                                      11 53 13
 MS081210                                                                       1 OF 12
MDACC Project No. XX-XXXX                                                     MDACC PROJECT NAME
A/E Name                                                                            Issue Description
A/E Project No.                                                                      Month, 00, 0000

       B. Testing – Chemical Fume Hoods: Submit proof of design testing by the tracer gas method.
          All submittals require UTMDACC Environmental Health and Safety Department approval.
          The testing method is given in the current edition of ANSI Z9.5/ASHRAE 110 Performance
          Testing). The test report shall include who performed the tests, the procedures and the
          results given “as manufactured”. Certification measurements to be taken with a hot wire
          anemometer with calibration traceable within one year. Measurements to be made with the
          hood sash at 18 inches or operating position. Final acceptance of hood testing to be by
          Environmental Health and Safety and Capital Planning and Management.

       C. Testing – Biological Safety Cabinets: Before shipping, each unit shall be tested to meet
          requirements of N.S.F. Standard #49 for periodic certification. Submit one copy of test with
          each unit.

       D. Testing – Biological Safety Cabinets: Submit a certified copy of the Personnel, Product and
          Cross-Contamination (Biological) Tests, N.S.F. Standard #49 performed on one (1) unit from
          each production run from which cabinets have been purchased. Owner representative may
          witness test.

       E. Certification – Biological Safety Cabinets and Chemical Fume Hoods: Manufacturer will
          arrange for certification of cabinets after installation in accordance with N.S.F. Standard #49
          and ANSI Z9.5/ASHRAE 110. Test report requires UTMDACC Safety Department approval.

           1. MDACC will approve certification firm.

1.06   SUBMITTALS

       A. Product Data:

           1. Samples: Submission of samples may be required, before fabrication has begun, to
              clearly show the following:

           2. Each plumbing and electric service fitting.

           3. Copies of all test reports.

       B. Record Documents:

           1. Shop Drawings: Fabrication and Installation: Show fabrication and installation details
              and dimensions for chemical fume hoods, biological safety cabinets and other items in
              this section. Show location and details of field joints between units and in tops. Show
              fastening types and locations for securing units in place. If they are required, show
              location, size and details of fillers.

           2. Shop Drawings – Rough-In:         Show location and requirements for utility and service
              connections to this Work.

           3. Certified air flow for hoods.

           4. Certification of biological safety cabinets.




 The University of Texas            CHEMICAL FUME HOODS AND BIOLOGICAL SAFETY CABINETS
 MD Anderson Cancer Center                                                      11 53 13
 MS081210                                                                       2 OF 12
MDACC Project No. XX-XXXX                                                         MDACC PROJECT NAME
A/E Name                                                                                Issue Description
A/E Project No.                                                                          Month, 00, 0000

PART 2 - PRODUCTS

2.01      GENERAL

          A. All materials shall meet or exceed all applicable referenced standards, federal, state and local
             requirements, and conform to codes and ordinances of authorities having jurisdiction.

2.02      PLUMBING SERVICE FITTINGS

          A. Provide types of fittings necessary for the services and pressures indicated on Drawings.

          B. Vacuum breakers shall not be installed under exhaust hoods or similar locations that will
             contain toxic fumes or vapors.

          C. Finish: Polished chrome on brass body unless specified otherwise.

          D. Equip valve handles with color coded plastic index buttons as follows:

Service                      Indexing                   Button Color                Lettering Color

Cold Water                   CW                         Green                       White
Hot Water                    HW                         Red                         White
Air                          AIR                        Blue                        White
Gas                          GAS                        Orange                      White
Vacuum                       VAC                        Yellow                      White
Distilled Water              DW                         White                       Black
Steam                        Steam                      Black                       White
Oxygen                       OXY                        Lt. Green                   White
Nitrogen                     N2                         Gray or Brown               Black or White


          E. Manufacturers:

              1. Chicago Faucet Co.

              2. T & S Brass & Bronze Works, Inc.

              3. Watersaver Faucet Co., Inc.

              4. All fittings supplied under this Section and Division 22 shall be by the same manufacturer.

          F. Chemical Fume Hood Fittings

              1. Provide fittings as scheduled on Contract Drawings.

2.03      ELECTRIC SERVICE FITTINGS

          A. Provide types of fittings necessary for the services indicated on the Drawings.

2.04      CHEMICAL FUME HOODS

          A. Acceptable Manufacturers:

              1. Kewaunee Manufacturing Co. – Hoodaire I Series



 The University of Texas                CHEMICAL FUME HOODS AND BIOLOGICAL SAFETY CABINETS
 MD Anderson Cancer Center                                                          11 53 13
 MS081210                                                                           3 OF 12
MDACC Project No. XX-XXXX                                                      MDACC PROJECT NAME
A/E Name                                                                             Issue Description
A/E Project No.                                                                       Month, 00, 0000

           2. Fisher Hamilton Scientific, Inc. – Safeaire Constant Volume/Bypass Series

           3. Mott Manufacturing, Ltd.

           4. American Seating Company – Air Master Constant Velocity Series

           5. Another approved manufacturer able to present acceptable evidence of at least three (3)
              similar satisfactory installations, one of which is at least three (3) years old.

      B. Restricted Bypass air hoods shall be used unless shown otherwise on Drawings. Special
         purpose hoods (perchloric acid, radioactive, etc.) shall be individually designed. Provide
         hoods with: Switched fluorescent light fixture; two (2) 20 amp, 120 V., hospital grade,
         stainless steel GFI duplex receptacles; remote control polished chrome service fittings for
         water, air, gas and vacuum as indicated on Drawings; plug unused service holes; stainless
         steel cup sink as indicated on Drawings, plumbed to sanitary sewer system with
         polypropylene tail-piece and trap (cup sink at all hoods except radioisotope).

      C. Material: Stainless steel, and/or treated and coated steel, or other approved material as
         indicated. All interior surfaces to be stainless steel.

      D. Counter tops, interior surfaces, front sash and/or apron: materials with flame spread index of
         25 or less.

      E. Hoods shall have a 6 inch wide “picture frame” airfoil at sides, top and bottom. The lower
         airfoil shall be Type 316 stainless steel.

      F. Bottom air foil: Outside edge of airfoil shall be slightly below the counter top with an
         unobstructed air space between the airfoil and the counter top to allow air flow when sash is
         closed.

      G. All interior surfaces to be coved stainless steel. Counter top to be dished stainless steel
         integral with the sidewalls.

      H. Side panels shall be flush with the entrance edge of the airfoil.

      I.   Automatic air bypass: Located at top of sash opening with completely positive operation not
           dependent upon mechanical or electrical linkage. Bypass shall limit increase in air velocity
           (500 percent maximum) through the hood face regardless of sash position.

      J.   Exhaust slots:

           1. Slot air velocity: 1500 fpm minimum.

           2. Locate controls to minimize tampering and interference with normal hood operation.

           3. Maximum slot area shall be less than two-thirds of the cross sectional area of the
              respective parts of the plenum.

           4. Locate horizontal slots at counter top level, center and top section of hood.

      K. Exhaust requirements: Operate hood at the following face velocity and air flow as indicated
         on Drawings.

           1. Chemical Fume Hood – Class A:



The University of Texas            CHEMICAL FUME HOODS AND BIOLOGICAL SAFETY CABINETS
MD Anderson Cancer Center                                                      11 53 13
MS081210                                                                       4 OF 12
MDACC Project No. XX-XXXX                                                    MDACC PROJECT NAME
A/E Name                                                                           Issue Description
A/E Project No.                                                                     Month, 00, 0000

              a. Face velocity – 100 fpm is the preferred face velocity when sash is open at 18 inches
                 above work surface. The hood must be within a range from 60 fpm to150 fpm.

              b. Air flow, 4 foot hood – 485 CFM.

              c.   Air flow, 5 foot hood – 660 CFM.

              d. Air flow, 6 foot hood – 785 CFM.

              e. Air flow, 8 foot hood – 1080 CFM.

      L. Support structure: Accommodate a distributed load of 250 psf and a single concentrated load
         of 500 lbs. in addition to the hood weight.

      M. Locate sinks and service fittings 6 inch minimum beyond hood face. Locate cup sinks and
         service fittings at back of hood unless indicated otherwise. All CFH’s to be prepiped – no
         pipes less than or equal to ½ inch. For gas, use schedule 40 black iron. For vacuum and air
         use type K silver solder (15 percent solder). No flex connectors on gas – all hard piped. Use
         all domestic material. All hoods to be GFCI, hospital grade stainless steel.

      N. Sash windows: Laminated glass. ¼ inch acrylic plastic and tempered glass acceptable if
         indicated. Wired glass not allowed.

      O. Base cabinet support unit: Provide vented solvent storage cabinet meeting requirements of
         OSHA, Section 1910.106(d) (3) or NFPA 30, Section 4-3 unless indicated otherwise. Vent
         cabinet with 2 inch diameter galvanized screw pipe connected into the hood exhaust duct at
         approximately 90 inches above finish floor. Vent to be concealed within sidewalls of hood.
         Provide ¼ inch hardware cloth screen at vent inlets. Venting must not occur inside the hood.
         Flammable liquid storage cabinet doors to be self closing.

      P. Base cabinet support unit: Standard metal casework.

      Q. Base cabinet support unit: Vented acid storage cabinet. Vent similar to solvent storage
         cabinet using 2 inch diameter GALV screw pipe. Doors to be self-closing.

      R. Radioisotope and radiochemical hoods: All interior surfaces to be coved stainless steel.
         Counter top to be dished stainless steel integral with sidewalls.

      S. Provide the following field modifications: Refer to attached drawing.

          1. Install Baker Co. AirGard air flow monitor (AFM) or approved equal. (Southwest
             Bioequip., 713-784-9298). Mount on stainless steel bracket, screwed to face of hood.
             Verify Baker – refer to Division 23 and Division 25 for air flow monitor.

          2. Provide with manufacturer’s duct penetration device and airflow monitor probe.

          3. Provide 2100 wire mold to enclose probe and power cords.

          4. Provide emergency power electrical receptacle on top of hood or on wall directly above
             and behind hood for power to AFM. This receptacle can be on a circuit with other hood
             AFM’s only.

      T. Exterior of fume hood to match adjacent color of casework.




The University of Texas            CHEMICAL FUME HOODS AND BIOLOGICAL SAFETY CABINETS
MD Anderson Cancer Center                                                      11 53 13
MS081210                                                                       5 OF 12
MDACC Project No. XX-XXXX                                                       MDACC PROJECT NAME
A/E Name                                                                              Issue Description
A/E Project No.                                                                        Month, 00, 0000

2.05   BIOLOGICAL SAFETY CABINET – CLASS II, TYPE A

       A. Acceptable Manufactures

            1. The Baker Co., Inc.BioGARD B40A-112 and B60A-112, Steriguard III Advance SG403,
               SG603 (Ergonomic adjustable base). Class IIA or B3 BSC at UTMDACC must be
               installed as IIA-not ducted for B3.

                SRS, Inc.
                13003 SW Frwy
                Suite 125
                Stafford, Texas 77477
                (281) 980-2845

            2. NuAire, Inc. – 407-400, 407-600, 425-400 and 425-600 (Ergonomic adjustable base)

                Biomedical Solutions
                P.O. Box 1646
                Sugar Land, Texas 77487-1646
                (281) 240-5893

            3. Thermo Forma Scientific – Model 1200, 1206, 1214, 1210, 1284, 1286 (Ergonomic
               adjustable base)

                P.O. Box 649
                Marietta, Ohio 45750
                (800) 827-7133

       B. Units shall meet or exceed requirements of NCI Specification “General Purpose Clean Air
          Biological Safety Cabinet” (Class II, Type A) and NSF Standard #49.

       C. Units shall be tested and certified as required in Paragraph 1.4, Quality Assurance.

       D. Units to be console type, nominal 4 foot or 6 foot wide as indicated. Unit shall be
          transportable through a 3’-0” x 6’-8” doorway. Unit and ergonomic stand must be able to be
          moved easily as one unit with roller lift. Unit shall be installed as a Type A Cabinet, not as a
          B3.

       E. Units shall be UL listed.

       F. Exterior material: Sealed panels of 16 gage cold rolled steel and dress panels of 18 gage
          Cold rolled steel. Painted Perma-white.

       G. Interior material: 16 gage Type 304 stainless steel with No. 4 finish. Interior corners shall be
          radiused (7/16 inch). Work surface to be recessed with radiused corners.

       H. Unit legs: Adjustable.

       I.   Sliding View-screen: Slanted with 10 degree angle from the vertical, ¼ inch safety or
            tempered glass capable of moving to a fully closed position during shutdown periods.

       J.   Air intake velocity through 8 inch front access: 100 fpm minimum.

       K. Unit shall be designed to re-circulate 70 percent of the air volume and to exhaust 30 percent
          to the room.

 The University of Texas              CHEMICAL FUME HOODS AND BIOLOGICAL SAFETY CABINETS
 MD Anderson Cancer Center                                                        11 53 13
 MS081210                                                                         6 OF 12
MDACC Project No. XX-XXXX                                                       MDACC PROJECT NAME
A/E Name                                                                              Issue Description
A/E Project No.                                                                        Month, 00, 0000

       L. Units shall have standard supply and exhaust HEPA filters, 99.99 percent efficient for 0.3
          microns per DOP test. The HEPA filters shall be low resistance type achieving a low static
          pressure of 0.30 to 0.45 inches water column. Provide one extra set of filters for each
          cabinet. Filter frames shall be constructed of wood.

       M. Filters shall be front loading.

       N. Stainless steel air diffuser and filter protector provided in Work area.

       O. Control valve or damper to maintain supply and exhaust air balance and shut-off for
          decontamination.

       P. Unit to have fluorescent fixture mounted outside cabinet providing more than 100 footcandle
          lighting.

       Q. Electrical power receptacles: Provide following unless indicated otherwise on Drawings; GFI
          type, on separate circuit from fan motor and lights, located in drip-proof, gas-tight box inside
          cabinet. For 6 foot units, provide two (2) duplex receptacles. For 4 foot units, provide one (1)
          duplex receptacle. Stainless steel cover plates.

       R. Air and vacuum on right and left side. Gas not allowed in IIA.

       S. Spill trough drain valve: Stainless steel ball valve.

       T. Locate service fittings 6 inch minimum beyond cabinet face. All cabinets are to be prepiped
          with no pipe less than or equal to ½ inch diameter in size. Make service connections to the
          cabinet through the top and toward the back of the cabinet. Connections through the back or
          sides of the cabinet are not acceptable. Connections shall extend 2 inches above the
          cabinet. Provide schedule 40 black iron pipe for gas piping. Provide type K copper silver
          solder (15 percent solder) piping for vacuum and air lines. Flexible connectors on gas piping
          are not acceptable. Install all hard pipe. Use all domestic materials.

       U.   Exhaust Air Flow

            1. 4 foot 8 inch opening 269 CFM

            2. 4 foot 10 inch opening 355 CFM

            3. 6 foot 8 inch opening 408 CFM

            4. 6 foot 10 inch opening 510 CFM

       V. Unit shall have an audible alarm and a flashing LED to indicate when the sliding view screen
          is in an unsafe position. Provide mute alarm switch.

2.06   BIOLOGICAL SAFETY CABINET – CLASS II, TYPE B1

       A. Acceptable Manufacturers:

            1. The Baker Co., Inc. – NCB-B4 and NCB-B6

               SRS, Inc.
               13003 SW Frwy
               Suite 125
               Stafford, Texas 77477


 The University of Texas             CHEMICAL FUME HOODS AND BIOLOGICAL SAFETY CABINETS
 MD Anderson Cancer Center                                                       11 53 13
 MS081210                                                                        7 OF 12
MDACC Project No. XX-XXXX                                                    MDACC PROJECT NAME
A/E Name                                                                           Issue Description
A/E Project No.                                                                     Month, 00, 0000

               (281) 980-2845

           2. NuAire, Inc. – NU-427-400 and NU-427-600 (both with ergonomic base)

               Biomedical Solutions
               P.O. Box 1646
               Sugar Land, Texas 77487-1646
               (281) 240-5893

      B. Air flow at minimum 0.30 inch and maximum 0.60 inch water column negative static pressure:

           1. Baker 4 foot cabinet; 256 CFM

           2. Baker 6 foot cabinet; 374 CFM

           3. NuAire 4 foot cabinet; 270 CFM

           4. NuAire 6 foot cabinet; 410 CFM

      C. Units shall meet or exceed requirements of NCI Specification “General Purpose Clean Air
         Biological Safety Cabinet” (Class II, Type B Safety Cabinet) and NSF Standard #49.

      D. Units shall be tested and certified as required in Paragraph 1.4, Quality Assurance.

      E. Units to be console type, nominal 4 foot or 6 foot wide as indicated.           Unit shall be
         transportable through a 3’-0” x 6’-8” doorway.

      F. Units shall be UL listed.

      G. Exterior material: 14 gage cold rolled steel with white baked enamel finish.

      H. Interior material: Type 304 stainless steel with No. 4 finish.       Interior corners shall be
         radiused. Work surface to be recessed with radiused corners.

      I.   Unit legs: Adjustable.

      J.   View-screen: Vertical sliding, counterweighted, ¼ inch safety or tempered glass.

      K. Air intake velocity through 8 inch front access: 100 fpm minimum.

      L. Unit shall be designed to directly exhaust 70 percent (through a HEPA filter) of the total
         volume of air handled in the unit from the work surface area to an outside exhaust provided
         by others. 30 percent recirculation within cabinet.

      M. Units shall have zero-probed supply and exhaust HEPA filters, 99.99 percent efficient for 0.3
         microns per DOP test. The HEPA filters shall be low resistance type achieving a low static
         pressure of 0.30 to 0.45 inches water column. Provide one extra set of filters for each
         cabinet. Filter frames shall be constructed of wood.

      N. Filters shall be front loading.

      O. Protect supply filter with metal diffuser.

      P. Air-tight control valve or damper to maintain supply and exhaust air balance and shut-off for
         decontamination.


The University of Texas              CHEMICAL FUME HOODS AND BIOLOGICAL SAFETY CABINETS
MD Anderson Cancer Center                                                        11 53 13
MS081210                                                                         8 OF 12
MDACC Project No. XX-XXXX                                                     MDACC PROJECT NAME
A/E Name                                                                            Issue Description
A/E Project No.                                                                      Month, 00, 0000

       Q. Unit to have fluorescent fixture mounted outside cabinet.

       R. Electrical power receptacles: Provide following unless indicated otherwise on Drawings; GFI
          type on separate circuit from fan motor and lights, located in drip-proof, gas-tight box. For 6
          foot units, provide two (2) duplex receptacles. For 4 foot units, provide one (1) duplex
          receptacle. Stainless steel cover plates.

       S. Gas/vacuum service fittings: Two (2) valves each side wall, unless indicated otherwise on
          Drawings.

       T. Spill through drain valve: Stainless steel ball valve.

       U. Locate service fittings 6 inch minimum beyond cabinet face. All cabinets are to be prepiped
          with no pipe less than or equal to ½ inch diameter in size. Make service connections to the
          cabinet through the top and toward the back of the cabinet. Connections through the back or
          sides of the cabinet are not acceptable. Connections shall extend 2 inches above the
          cabinet. Provide schedule 40 black iron pipe for gas piping. Provide type K copper silver
          solder (15 percent solder) piping for vacuum and air lines. Flexible connectors on gas piping
          are not acceptable. Install all hard pipe. Use all domestic materials.

       V. Unit shall have an audible and visible alarm to indicate low exhaust air flow by monitoring air
          mass. Audible and visible alarm when sliding viewscreen is in an unsafe position.

2.07   BIOLOGICAL SAFETY CABINET – CLASS II, TYPE B2

       A. Manufacturers:

           1. The Baker Co., Inc. – SG 403TX and SG 603TX (ergonomic adjustable base)

                SRS, Inc.
                13003 SW Frwy.
                Suite 125
                Stafford, Texas 77477
                (281) 980-2845

           2.   NuAire, Inc. – NU-430-400 and NU-430-600 (ergonomic adjustable base)

                Biomedical Solutions
                P.O. Box 1646
                Sugar Land, Texas 77487-1646
                (281) 240-5893

       B. Air flow at minimum 0.75 inch water column negative static pressure:

           1. Baker 4 foot cabinet; 775-800 CFM

           2. Baker 6 ft cabinet; 1150-1200 CFM

           3. NuAire 4 foot cabinet with 8 inch access opening; 754 CFM

           4. NuAire 4 foot cabinet with 10 inch access opening; 674 CFM

           5. NuAire 6 foot cabinet with 8 inch access opening; 1100-1150 CFM

           6. NuAire 6 foot cabinet with 10 inch access opening; 990 CFM


 The University of Texas            CHEMICAL FUME HOODS AND BIOLOGICAL SAFETY CABINETS
 MD Anderson Cancer Center                                                      11 53 13
 MS081210                                                                       9 OF 12
MDACC Project No. XX-XXXX                                                       MDACC PROJECT NAME
A/E Name                                                                              Issue Description
A/E Project No.                                                                        Month, 00, 0000

      C. Units shall meet or exceed requirements of NSF Standard #49.

      D. Units shall be tested and certified as required in Paragraph 1.4, Quality Assurance.

      E. Units to be console type, nominal 4 foot or 6 foot wide as indicated.               Unit shall be
         transportable through a 3’-0” x 6’-8” doorway.

      F. Unit shall be UL listed.

      G. Exterior material: Cold rolled steel with white baked enamel finish.

      H. Interior material: Type 304 stainless steel with No. 4 finish. All stainless steel to be welded
         construction with radiused corners.

      I.   Unit legs: Adjustable.

      J.   View-screen: Vertical sliding, slanted 10 degree, counter-weighted, ¼ inch safety glass –
           opens to 8-¼ inch.

      K. Air intake velocity through 8 inch or 10 inch front access: 105 fpm minimum.

      L. Unit shall be designed to directly exhaust 100 percent of the total volume of air handled in the
         unit from the work surface area to an outside exhaust provided by others.

      M. Units shall have zero-probed supply and exhaust HEPA filters, 99.99 percent efficient for 0.3
         microns per DOP test. The HEPA filters shall be low resistance type achieving a low static
         pressure of 0.30 to 0.45 inches water column. Provide one extra set of filters for each
         cabinet. Filter frames shall be constructed of wood.

      N. Filters shall be front loading.

      O. Units shall feature a bag-in/bag-out procedure for replacement of exhaust filter.

      P. Protect supply filter with metal diffuser.

      Q. Air-tight control valve or damper to maintain supply and exhaust air balance and shut-off for
         decontamination.

      R. Unit to have fluorescent fixture mounted outside cabinet.

      S. All electrical components shall be outside Work zone and exhaust flow ducting.

      T. Electrical power receptacles: Provide following unless indicated otherwise on Drawings: GFI
         type, on separate circuit from fan motor and lights. Provide two (2) duplex receptacles.
         Stainless steel cover plates.

      U. Air/Gas/Vacuum service fittings: Two (2) remote control valves.

      V. Spill trough drain valve: Stainless steel ball valve.




The University of Texas             CHEMICAL FUME HOODS AND BIOLOGICAL SAFETY CABINETS
MD Anderson Cancer Center                                                       11 53 13
MS081210                                                                       10 OF 12
MDACC Project No. XX-XXXX                                                       MDACC PROJECT NAME
A/E Name                                                                              Issue Description
A/E Project No.                                                                        Month, 00, 0000

       W. Locate service fittings 6 inch minimum beyond cabinet face. All cabinets are to be prepiped
          with no pipe less than or equal to ½ inch diameter in size. Make service connections to the
          cabinet through the top and toward the back of the cabinet. Connections through the back or
          sides of the cabinet are not acceptable. Connections shall extend 2 inches above the
          cabinet. Provide schedule 40 black iron pipe for gas piping. Provide type K silver solder (15
          percent solder) piping for vacuum and air lines. Flexible connectors on gas piping are not
          acceptable. Install all hard pipe. Use all domestic materials.

PART 3 - EXECUTION

3.01   COORDINATION

       A. Coordinate installation and service requirements with other trades.

3.02   CASEWORK INSTALLATION

       A. Install this Work under direction of manufacturer.

       B. Floor supported Work: Set in position, level and fasten to adjacent units as required. Fasten
          counter tops to base cabinets. Seal tops and splashes to abutting vertical surfaces. Install
          filler panels between cabinets and walls.

       C. Wall mounted Work: Fasten in place to bracing provided in wall system.

3.03   CHEMICAL FUME HOOD AND BIOLOGICAL SAFETY CABINET INSTALLATION

       A. Install new fan and electrical disconnect on equipment supports per Division 07. Install motor
          starter for ¾ horsepower and larger motors in a protected location near fan. Coordinate with
          Owner’s Representative.

       B. Install new stack per attached detail. Provide guy wire to support stack as required.
          Coordinate location of guy wire with Owner’s Representative.

       C. Paint and identify fan housing.

       D. Provide reinforced neoprene connector between fan and ductwork.

       E. Provide stainless steel transition section between hood or safety cabinet and ductwork.

       F. Install volume control damper in ductwork directly above hood and transition section.

       G. Install new base cabinet under existing hood and install concealed vent(s) to exhaust duct
          above hood as required.

       H. Connect electrical and mechanical services indicated on Drawings to devices furnished with
          hood or safety cabinet.

       I.   Baker Air Flow Alarm

            1. Mount on stainless steel bracket, location as shown on Drawings.

            2. Wiring and probe connection to be enclosed in wire mold.

            3. Power for alarm to be taken from a receptacle mounted on top of hood.



 The University of Texas           CHEMICAL FUME HOODS AND BIOLOGICAL SAFETY CABINETS
 MD Anderson Cancer Center                                                     11 53 13
 MS081210                                                                     11 OF 12
MDACC Project No. XX-XXXX                                                     MDACC PROJECT NAME
A/E Name                                                                            Issue Description
A/E Project No.                                                                      Month, 00, 0000

           4. Maintain space over hood sash clear of ductwork, conduit and piping for 9 feet above
              finished floor to allow full opening of sash.

3.04   CLEANING

       A. Remove debris from area of installation daily and at completion of Project.


                                     END OF SECTION 11 53 13




 The University of Texas           CHEMICAL FUME HOODS AND BIOLOGICAL SAFETY CABINETS
 MD Anderson Cancer Center                                                     11 53 13
 MS081210                                                                     12 OF 12

				
DOCUMENT INFO
Shared By:
Categories:
Tags:
Stats:
views:17
posted:12/11/2011
language:Latin
pages:12