July 22, 1994

Contract \# TW0592

**SPECIAL SPECIFICATION**

**SECTION 15175**

**[CLEAN ROOM CEILING SYSTEM]{.underline}**

[Page]{.underline}

**[PART 1 - GENERAL]{.underline}**

1.01 Description. 2

1.02Related Work 3

1.03Quality Assurance. 4

1.04References. 4

1.05Submittals.. 5

1.06 Delivery, Storage, and Handling. 5

**[PART 2 - PRODUCTS]{.underline}**

2.01Acceptable Manufacturers and Contractors. 8

2.02 Clean Room Ceiling Grid Module Design Requirements. 8

2.03 Ceiling Grid Module System. 10

2.04 Auxiliary Ceiling Grid Components. 11

2.05 Lighting Systems. 15

2.06 Configuration. 17

**[PART 3 - EXECUTION]{.underline}**

3.01 Installation/Application/Erection. 18

3.02 Penetrations. 19

3.03 Field Quality Control. 19

**SPECIAL SPECIFICATION**

**SECTION 15175**

**[CLEAN ROOM CEILING SYSTEM]{.underline}**

**[PART 1 - GENERAL]{.underline}**

**1.01 [DESCRIPTION]{.underline}**

> A. This section covers the work necessary to fabricate, furnish, and
> supervise the erection of the Sandia National Laboratory (SNL)
> Building 870 clean room ceiling system. Work shall include the
> following:
>
> 1\. Ceiling filtration system with high efficiency particulate air
> (HEPA) filters, support grid modules, flush mounted lights, sprinkler
> penetrations, and intermediate supports.
>
> 2\. In-place testing of all components of the filter ceiling system as
> described in Paragraph 3.03.
>
> B. In the event of conflict regarding the clean room ceiling system,
> requirements between this Section and any other section, the
> provisions of this Section shall govern.
>
> C. The Clean Room Ceiling System Contractor shall be fully responsible
> for a leak free filter/ceiling system.
>
> 1\. An independent Clean Room Certification Contractor will be
> employed under Section 15055 upon completion of work to certify the
> facility at Class 100 and 1,000 on 0.50 one-millionth-of-a-meter
> (micron) at \"as-built\" condition. Certification will be based on
> Class 100 on 0.50 micron. (No more than 100 particles per cubic foot
> (ft3) of 0.50 micron or larger particulate.) and Class 1,000 on 0.5
> micron (No more than 1,000 particles per ft.3 of 0.5 micron or larger
> particulate.).
>
> 2\. All rework and retesting shall be at the Clean Room Ceiling System
> Contractor\'s expense and no cost to SNL.
>
> D. System Description
>
> 1\. Ceiling grid modules shall be factory assembled and painted
> containing inverted channel filter support grid, sprinkler
> penetrations, flush mounted linear fluorescent light fixtures,
> internal lamp reflectors, single point termination for lighting
> terminal boxes, provisions for connection to adjacent ceiling grid
> modules, air flow diffusion elements, provisions for an overhead
> support system with threaded rods, and provisions for connections to
> adjacent ceiling grid modules.
>
> 2\. HEPA filter modules shall be provided by the manufacturer from
> among pre-approved filter manufacturers, arranged to be compatible
> with the specific channel grid.
>
> 3\. The air handling units are remotely located.
>
> 4\. The Drawings detail size and grid orientation for ceiling grid
> modules.
>
> 5\. Perimeter filler panels shall be provided by manufacturer as
> required. Blank ceiling filler panels shall be provided as indicated
> and required on the Drawings.
>
> 6\. The Specifications and the Drawings describe the criteria and
> features required for the ceiling. The manufacturer may submit pricing
> options, accessories, or other features that would enhance the
> installation, cost, or performance in SNL\'s best interest.
>
> E. Bids
>
> 1\. The ceiling manufacturer shall state in the base bid which of the
> approved filter manufacturers has been included in the base bid for
> the entire modular ceiling grid.
>
> 2\. The ceiling manufacturer shall state in an alternate bid the price
> for each of the other approved filter manufacturers. SNL retains the
> right to select one of the alternative manufactures as desired for
> standardization of its site filter inventory.

**1.02 [RELATED WORK]{.underline}**

> A. Section 01300
>
> B. Section 15010
>
> C. Section 15023
>
> D. Section 15501-S
>
> E. Section 15055

**1.03 [QUALITY ASSURANCE]{.underline}**

> A. The materials and methods of construction for the clean room
> modular ceiling system and accessories hereinafter specified shall
> comply with the current editions (unless specifically indicated
> otherwise), of the practices, methods, or standards prepared by the
> applicable technical societies and associations listed in Section
> 15023 of these specifications.
>
> B. SNL or its representative shall maintain the right to tour the
> clean room ceiling manufacturer\'s plant anytime that fabrication is
> being performed on components intended for this project.
>
> C. The manufacturer shall notify SNL when production is finished on
> the components. Anytime after that date, SNL may exercise the option,
> giving 24-hours advance notice, to tour the plant and inspect for
> component assembly, painting, cleaning, or packaging to ensure that
> quality control has been maintained.
>
> D. All wiring shall conform to the requirements of the National
> Electrical Code and the Standards for Safety of Underwriters\'
> Laboratories, Inc. (UL).
>
> E. All electrical components shall be UL listed and labeled. Filters
> shall be FM approved.

**1.04 [REFERENCES]{.underline}**

> A. Institute of Environmental Sciences (IES), IES-RP-CC006 Recommended
> Practices for testing Clean Rooms
>
> B. Uniform Building Code (UBC)
>
> C. American Iron and Steel Institute (AISI), \"Specifications for the
> Design of Cold-Formed Steel\"
>
> D. National Electrical Code (NEC)
>
> E. Underwriter\'s Laboratories (UL), \"Standards for Safety\"
>
> F. American National Standards Institute (ANSI), ANSI C82.1
>
> G. Federal Communications Commission (FCC)
>
> H. Code of Federal Regulations (CFR), CFR47 Part 18
>
> I. American Society for Testing and Materials (ASTM), ASTM C636
>
> J. Federal Standard 209E, \"Airborne Particulate Cleanliness Class for
> Clean Rooms and Clean Zones\"

**1.05 [SUBMITTALS]{.underline}**

> A. Make submittals according to this Section, Section 15010, and
> Section 01300.
>
> B. Submit product information showing compliance with this Section for
> review prior to manufacturing. Include the following:
>
> 1\. Shop and erection drawings showing all types, profiles, sizes,
> gauges, finishes, dimensions, components, fittings., fasteners, welds,
> positions, spacing, openings, connections, welding processes, etc.,
> for the fabrication and erection of the clean room ceiling grid
> system.
>
> 2\. Structural drawings and calculations showing support member
> sizing, member connections details, sway bracing provisions, and size
> and location of loads imposed on the structure.
>
> 3\. Electrical lighting calculations that show room cavity ratio,
> reflectance (ceiling/wall/floor), coefficient of utilization, lamp
> lumen depreciation, luminaire dirt depreciation, and average
> maintained foot candle levels based on the use of white lamps
> throughout. Drawing showing ballast locations, manufacturer and
> catalog number of all components, and wiring diagram for each plenum.
> Schematic drawings showing wiring between terminal cabinet/ballast
> enclosure to lamp-holders. Manufacturers catalog sheets shall also be
> submitted.
>
> 4\. A copy of all welder\'s certifications and welding procedures for
> review prior to any welding.
>
> C. Required with the Bid
>
> 1\. A list of five successfully operating installations similar in
> capacity, application, and equipment type within the continental
> United States. Minimum service time on these installations shall be 2
> years.
>
> 2\. Cross-sectioned drawing showing the configuration of components,
> access panels (where necessary), and outside dimensions.
>
> 3\. Detailed information on structural, mechanical, electrical, and
> other services necessary to evaluate installation requirements.

**1.06 [DELIVERY, STORAGE, AND HANDLING]{.underline}**

> A. It shall be the requirement of the manufacturer to provide at their
> facility a controlled area for the purpose of final cleaning and
> packaging of equipment. This area shall be at least Class 10,000 per
> Federal Standard 209E.
>
> B. By \"clean\" it is meant that all housing and equipment components
> will be thoroughly cleaned of all oils, grease, lubricants, dirt, and
> dust prior to assembly.
>
> C. After assembly and test, but prior to shipment, all interior
> surfaces and equipment shall be wiped down with approved cleaner and
> vacuumed (HEPA type only).
>
> D. Visual inspection without magnification shall be conducted over 100
> percent of the surface.
>
> E. Low-shedding materials shall be used for wipe cleaning.
>
> 1\. Approved types
>
> a\. Touch-and-Go polyurethane foam, Sills & Assoc.
>
> b\. Texwipe cloths, Texwipe Company.
>
> c\. Nylon Tricot 1068 cloths, Laminaire Company.
>
> d\. Miracle Wipe, International Clean Products.
>
> F. As preparation for shipment, all openings shall be sealed against
> dust, dirt, or moisture and weather protected. Provide coverings that
> will remain intact during shipment. Immediately after cleaning, the
> units shall be shrink wrapped with clean, acceptable plastic then
> double bagged and sealed with 4-millimeter plastic. These units must
> also be protected with plywood exterior to the plastic, and strapped
> tight with a suitable method. All components attached to the unit must
> also be protected in a similar manner. All equipment must be protected
> from contamination during the manufacturing process through start-up
> procedures and SNL acceptance.
>
> G. Filters
>
> 1\. The filters shall be separately packaged. Each filter module shall
> be wrapped in two protective polyethylene bags and packaged in an
> individual carton. Protective sleeves shall be inserted between the
> filter module and the carton walls. The packaging shall be such that
> sufficient protection of the bare media will be provided. Each carton
> and each filter module shall display the manufacturer\'s label on the
> 2-foot end, oriented to read from the clean room side, indicating the
> model number, serial number, efficiency at maximum penetrating
> particle size, rated airflow, total pressure drop, and test results
> for the individual module. A shock sticker will be attached to each
> pallet of filter cartons.
>
> 2\. Filter packing cartons shall be loaded on shipping pallets with
> all labels oriented to one end of the load. Filter cartons shall be
> placed on the long side arranged three across and three high. Provide
> hardboard protective sheet along both long sides of the pallet. Strap
> the entire pallet, then cover with protective polyethylene wrap.
> Attach the shock sticker to each pallet where it is readily visible.
>
> 3\. Pallets shall not be stacked for shipment. All filter pallets
> shall be shipped via dedicated air-ride enclosed van directly from the
> filter manufacturer to the job-site.
>
> 4\. A representative of the manufacturer shall be present to supervise
> the unloading, inspection, handling, and storage of filters upon
> receipt of the job-site.
>
> 5\. Filters shall not be uncrated until they are ready for final
> inspection and installation.
>
> 6\. Immediately upon receipt, each carton shall be visually inspected
> by SNL for shipping damage, such as crushed corners or sides, broken
> shock sticker, punctures or any other deformation which would indicate
> possible damage to filter media, frame, gasket or any part of the
> filter unit. Any deformed cartons shall be opened and the extent or
> damage shall be accessed.
>
> 7\. Obviously damaged filters shall be segregated from undamaged
> cartons and returned to the factory.
>
> 8\. All filters with deformed cartons, and all filters from pallets
> with broken shock stickers, shall be segregated for field bench
> testing by the manufacturer.
>
> 9\. After visual inspection of cartons, filters shall be placed in
> storage location where they may remain until they are ready for
> testing and installation as directed by SNL\'s representative. MINIMAL
> handling and moving of filters is essential. Care must be taken to
> eliminate dropping of cartons, vibration, excessive movement, and
> rough handling.
>
> 10\. Filters and ceiling grid modules awaiting installation shall be
> stored in accordance with the manufacturer\'s instructions.
>
> H. Units must be shipped in a flat bed closed truck (rag top) or
> approved alternate.
>
> I. SNL may inspect the cleaning, packaging, and shipping procedures of
> all plenum module units and randomly selected ceiling grid module
> units to ensure compliance. The SNL shall also have the right to
> randomly select units for inspection at various intervals, without
> notification to the manufacturer. All units must pass engineer\'s
> inspection prior to SNL\'s acceptance. Units not meeting acceptance
> cleanliness, packaging, and shipping specifications during any of the
> above mentioned processes will not be acceptable, and shall be brought
> to acceptance within specifications immediately at no additional cost.

**[PART 2 - PRODUCTS]{.underline}**

**2.01 [ACCEPTABLE MANUFACTURERS AND CONTRACTORS]{.underline}**

> A. Ceiling Grid Module Manufacturers
>
> 1\. Flanders
>
> 2\. Pace Clean-Pak
>
> 3\. Daw Technologies, Inc.
>
> 4\. Clestra Co.
>
> B. HEPA Filter Module Manufacturers
>
> 1\. Flanders
>
> 2\. American Air Filter
>
> 3\. Filtra
>
> C. Clean Room Certification Contractors
>
> 1\. Biocon - Raleigh, N.C.
>
> 2\. Clean Room Sciences - Phoenix, Arizona.
>
> 3\. Dryden Engineering - Santa Clara, CA.
>
> 4\. Air Filtration Management - Bethlehem, PA.

**2.02 [CLEAN ROOM CEILING GRID MODULE DESIGN
REQUIREMENTS]{.underline}**

> A. Vertical Design and Deflection Requirements
>
> 1\. Applied Dead Load: Actual weight of ceiling grid module (25
> pounds-per-square-foot minimum), sprinklers, lighting, ballasts,
> conduit, terminal boxes, and fire protection piping.
>
> 2\. Deflection: 1/8-inch maximum under full dead load.
>
> 3\. Hangers: Each 2-foot (ft) by 4-ft grid section of the grid system
> shall be supported from the overhead superstructure by four 3/8-in.
> threaded rods. Each rod shall be connected at one end to turnbuckles.
> The turnbuckles shall be attached to tapped bosses in the castings of
> the grid system. The turnbuckle assembly in the overhead structure
> shall permit final leveling of the grid.
>
> B. System and bracing designs shall be in conformance with UBC and
> AISI \"Specifications for the Design of Cold-Formed Steel.\" Lateral
> seismic loads shall be based on UBC using Z = 0.22, I = 1.25, and Cp =
> 1.5.
>
> C. System design shall accommodate construction tolerances, deflection
> of building structural members, and clearances of intended openings.
>
> D. Fire Sprinkler head placement shall be based on coverage as
> specified on the Drawings.
>
> E. Lighting Design Requirements
>
> 1\. Flush mounted fluorescent lighting system shall be furnished as
> specified herein and lamps located as shown on the drawings
> (electrical). The lighting level shall be maintained at 150
> footcandle.
>
> F. Manufacturing Tolerances
>
> 1\. HEPA Filter Module
>
> a\. Dimensions of Module: +0, -1/8 in., measured across the length and
> width of each module.
>
> b\. Squareness of Module: +1/8 in., -1/8 in., measured across both
> diagonals of each module.
>
> c\. Pleat Straightness: +1/16 in., -1/16 in., measured across the
> width perpendicular to the long side filter frame.
>
> d\. Pleat Depth: +1/16 in., -1/16 in., measured through the pack.
>
> e\. Pleat Flatness: +1/16 in., -1/16 in., measured at the leaving
> edge.
>
> f\. Pleat Pitch: +1/16 in., -1/16 in., measured at the leaving edge.
>
> g\. Total Pleats: +1 pleat from the average usable pleats of all
> filters in the ceiling.
>
> h\. Frame Flatness: +1/8 in., -1/8 in., of one corner from its
> diagonally-opposite corner.

**2.03 [CEILING GRID MODULE SYSTEM]{.underline}**

> A. Ceiling Grid Module
>
> 1\. The ceiling grid system shall consist of extruded aluminum
> channels. The filter support grid shall consist of full module length
> runner extrusion welded to a perimeter extrusion frame sized to fit
> clean room design. Cross members shall be welded to runner extrusions
> for a completely welded filter support frame and filter support grid.
> No factory caulking/sealing shall be permitted to provide airtight
> grid construction. Grid shall be caulked with an approved adhesive as
> necessary only to complete field joints in partial grids. The ceiling
> support grid shall be structurally constructed to remain dimensionally
> stable and retain the necessary sealing requirements when the
> permissible hanging load is suspended from the grid. The support grid
> shall be capable of withstanding 2-in. water gage (wg) of static
> pressure without deflection.
>
> 2\. The grid portion of the ceiling support lattice shall be supported
> from an overhead support system with threaded rods as required,
> connected to threaded support points. After the grid system has been
> completely sealed, it shall be water tested and be proven watertight.
> The channel grid shall be arranged so that filters and other system
> components can be handled from below the grid system.
>
> 3\. All metallic members shall be corrosion resistant materials and
> have finished coating of white powder coat epoxy finish.
>
> 4\. The grid system shall be configured to provide a flush means of
> attaching automation systems, enclosures, and wall head tracks.
>
> 5\. The sealant used in the grid channels shall be odor free,
> self-sealing, two-part biomed urethane base polymer and shall remain
> in place under static pressure of 10-in. wg. Sealant shall not be
> fluid at temperature below 250-degrees Fahrenheit. The sealant shall
> be field installed.
>
> 6\. The grid system shall include sprinkler penetrations in the
> framing system at all sprinkler head locations as required by the Fire
> Protection Contractor with provision for airtight seals and
> escutcheons.
>
> 7\. The ceiling grid module manufacturer shall coordinate with the
> Fire Protection Contractor to determine the placement of sprinkler
> heads for each area.
>
> 8\. Sealer plugs, clips, or covers shall be furnished for field
> installation over all openings in the ceiling assembly left after
> mounting of all accessories. Reveals to be sealed included air gap
> next to light fixture frame/lens, sprinkler heads, utility hangers,
> and empty grid channels.
>
> 9\. The ceiling grid shall be arranged as indicated on the Drawings.

**2.04 [AUXILIARY CEILING GRID COMPONENTS]{.underline}**

> A. Blank Ceiling Filler Panels
>
> 1\. Blank ceiling filler panels shall be constructed of aluminum with
> welded corners, designed to affect an airtight seal in the channel
> grid and shall function the same as the filter module skirt. Both
> sides of the blank panel shall have a white powder coat epoxy finish.
>
> 2\. Hold-down clips shall be used for positive seal of blank panel
> knife edge into the gel sealant. Clip shall be suitable to resist
> positive pressure gradient on bottom clean room face of panel.
>
> B. Perimeter In-Fill System
>
> 1\. Provide acceptable perimeter in-fill system as required on
> Drawings to affect an airtight seal in ceiling channel grid. In-fill
> system shall be constructed of aluminum panel with welded corners and
> shall function the same as the filter module skirt. Both sides of
> panel shall have a white powder coat epoxy finish.
>
> 2\. Hold-down clips shall be used for positive seal of panel knife
> edge into the gel sealant. Clip shall be suitable to resist positive
> pressure gradient on bottom clean room face of panel.
>
> C. HEPA Filters
>
> 1\. The filters used in this system shall be replaceable, factory
> built modules consisting of extruded anodized aluminum cartridge frame
> with integral knife edge, secure corner assemblies, pleated media with
> uniform separation system, and perforated aluminum face screen.
>
> 2\. Filters shall be nominal 24 in. by 48 in., by 4-in. deep or size
> as shown on the Drawings.
>
> 3\. The cartridges shall be constructed of materials that have been
> qualified under U.L. Class I testing and shall be nominally 4-in. deep
> media pack rated at 720 cfm each at 0.4-in. wg clean air flow
> resistance at minimum efficiency of 99.99 percent on 0.30 microns of
> polystyrene latex (PSL) spheres. Documentation of tests is required.
>
> 4\. All filters shall have a resistance to airflow of within
> [+]{.underline}10 percent of each other. Velocity uniformity shall be
> [+]{.underline}20 percent at 560 cfm. Uniformity is based on 12-in. by
> 12-in. readings over the filter face area.
>
> 5\. The filters shall be equipped with extruded and anodized aluminum
> knife edge around the downstream face. The knife edge shall be
> continuously sealed to the frames of the filters with suitable
> adhesive color matched to the pleated material, or shall be an
> integral extension of the frame extrusion.
>
> 6\. A perforated 12-gauge face screen shall be arranged to distribute
> filtered airflow across the adjacent grid to prevent stratification
> and regenerative contamination, screen shall be finished on both sides
> with powder paint epoxy to match the adjacent filter frames or grid
> trim pieces. The screen shall be mounted at least 1/8 in. below the
> edge of the media. The air pressure drop of the screen shall not
> exceed 0.05-in. wg at full flow.
>
> 7\. The ceiling manufacturer shall be responsible for the
> construction, testing, scheduling, and installation of the filter
> modules selected as part of the ceiling assembly. Filter construction
> and testing shall meet the following criteria:
>
> a\. Construction Criteria
>
> 1\) The media shall be constructed by pleating a continuous sheet of
> molded paper back and forth so the media is self supporting without
> the use of metal separators. The media separator shall be non-chafing
> against the media.
>
> 2\) The filter media shall be all glass made from boron silicate
> micro-fibers containing waterproof binder. A single batch of media
> paper shall be used for all filters with common efficiency criteria.
>
> 3\) The filter pack shall be minimum 100 millimeter (4 in.) deep,
> permanently sealed to the frame of the module with a fire retardant
> solid urethane sealant.
>
> 4\) Media within each module shall be one continuous run without
> seams, supports, or penetrations. The support edge should be arranged
> so that it cannot be seen after the filter module has been placed in
> the ceiling grid.
>
> 5\) Each filter will have a label with data of efficiency, pressure
> drop, serial number, model number, flow uniformity, media lot number,
> and test date, accommodated from the final filter quality approved
> tests.
>
> 6\) Care should be used in the selection of paints, fluid seals,
> sealants, and other materials to avoid those which have high gas mass
> loss due to out-gassing. Potting compounds or other adhesives shall be
> essentially non-out-gassing after a maximum 48-hour cure time at
> atmospheric conditions. Where out-gassing is unavoidable, select
> products with an alcohol base.
>
> 7\) The following materials are allowed in the construction, scanning,
> and repair of the filters. Any other materials which the vendor wishes
> to use must be approved in writing by SNL.
>
> a\) Anodized aluminum.
>
> b\) Fiberglass.
>
> c\) Silica.
>
> d\) RTV 162, GM 802 by GE.
>
> e\) RTV 732, for defect patching only.
>
> f\) Silicone gel sealant.
>
> 8\) Isopropyl alcohol (IPA) or IPA/deionized water mixture shall be
> the only cleaning solvent used on all aluminum components during
> assembly and final wipe-down. All handling of filter modules and media
> packs must be preformed with clean room approved barrier gloves.
>
> b\. Testing Criteria
>
> 1\) Each filter shall be factory tested to determine overall
> resistance to airflow.
>
> 2\) Every filter shall be automatically scan tested per the following
> procedure.
>
> a\) The automatic scanning equipment will consist of a particle
> counter of at least between 0.20 to 0.30 micron particle size
> detection capability and 1 cfm flow rate.
>
> b\) The scanning shall be accomplished by passing the probe with
> overlapping strokes so that the entire area of the filter is sampled.
> A separate pass shall be made around the entire periphery of the
> filter along the adhesive bond between the filter pack, the rigid
> frame and center divider, and at the four corners of the knife edge.
> The probe shall be held 1 in. from the filter face. The corner leaks
> in the frame will also be checked so that there is no particle leak in
> the space between the filter and the ceiling grid when installed. The
> transverse velocity of the sampling probe shall be maximum of 10
> feet-per-minute.
>
> c\) Factory testing of the filter modules shall be made using
> challenge aerosol spheres sized at 0.20 microns and larger. The number
> of particles in the challenge will be a minimum 107 particles per ft3
> of 0.20 microns and larger determined from the media efficiency tests.
>
> d\) The upstream particle challenge shall be monitored with a separate
> 1 cfm flow rate sampling laser particle counter (not photometer) with
> ability to measure between 0.24 microns and 0.8 microns across a
> minimum of 15 bins. No sources of dilution will be allowed and the
> upstream challenge must be a minimum of 100 x 106 particles per ft3.
> The procedure shall ensure that the upstream challenge is maintained
> by checking for a minimum of 1 minute during the scan test of each
> filter. The verification of the upstream challenge must be maintained
> and routine scheduled reports submitted with the filters. Data for
> each filter will be available to the SNL by the filter serial numbers.
>
> e\) Any single particle reading during the scanning process of 3
> counts per second will necessitate that a 6 to 10-second sample be
> taken at that location. If the 6 to 10-second reading is 50 particles
> or more, a full 1-minute count is taken for which the maximum
> allowable count is 200 particles. Any location which exceeds this
> level is a significant defect which must be repaired.
>
> f\) If leaks are found in the filter, use RTV 732, RTV 162, or GM 802
> by GE for patching of the filter media. Patching shall be limited to
> four locations per filter, with no more that 1/2-in. square per patch.
> Filters requiring further patching shall be rejected. After repair,
> filters shall be rechecked to ensure a leak-free filter.
>
> 3\) The following additional automatic scan tests will be performed by
> the manufacturer at the factory on every fifth filter manufactured.
> This testing will be done for 20 percent of the filters manufactured
> in a sequential order so that these tests represent the quality of all
> the filters manufactured for this project. If every fifth filter does
> not meet the criteria for the tests as given in this Specification,
> all four filters manufactured prior to and after the test filter will
> be tested.
>
> a\) Efficiency by dual laser spectrometer.
>
> b\) Airflow uniformity with protective screen.
>
> c\) Automatic scanning as noted above.
>
> d\) Pressure drop of the whole module.
>
> e\) All tests will be conducted introducing the air to the filter by a
> method simulating actual field operation of the filter.
>
> 4\) Procedures describing the above testing and routine scheduled
> reports will be submitted with the filter.
>
> 5\) Each filter shall be individually tracked through manufacturing
> process to record what media lot was used, what roll of media was
> used, date filter was made, number of leaks and size of patch, etc.
>
> 6\) Each filter shall have a label affixed to the exterior frame
> showing filter tracking number, efficiency (based on patch efficiency
> test), pressure drop, and number and size of patches that were
> required during leak testing.
>
> D. Accessories and Spare Parts
>
> 1\. The filter manufacturer shall provide a special filter holding
> fixture constructed to compensate for the knife edge skirt and permit
> the filter module to be transported and temporarily stored on its
> side. Filter modules shall never be placed on face or back sides.
>
> a\. Sufficient floor holding fixtures shall be built as required for
> handling and testing filters within the manufacturing plant.
>
> b\. Two floor holding fixtures shall be included with the first filter
> shipment to permit unpacking and installation in the field.
>
> 2\. The filter manufacturer shall provide an additional 5 percent of
> spare constructed filter modules to the job-site to permit immediate
> replacement of damaged filters or addition of area filter coverage.
> Any modules used to replace defective filter shall be replaced as
> specified.

**2.05 [LIGHTING SYSTEMS]{.underline}**

> A. General
>
> 1\. Luminaries (including lamp ballast and wiring between ballast and
> lamps) shall be integral and recessed with clean room ceiling grid.
> Complete lighting system of lamps, lamp-holders, lenses, wiring, and
> ballasts shall be furnished and installed as part of the ceiling
> module. Lighting system provided shall be 277 volt.
>
> 2\. Lighting levels shall be maintained at 150 footcandles.
>
> 3\. All electrical work shall comply with the 1993 National Electrical
> Code and the Standards for Safety of Underwriters\' Laboratories, Inc.
> (UL). All electrical components shall be UL listed and labeled.
>
> B. Wiring
>
> 1\. Lamp-holder to Ballast shall be with insulated 18-gauge copper
> conductors secured to grid.
>
> 2\. Wiring within grid shall be contained within and protected by
> sheet metal enclosure and adequate means utilized to prevent chaffing
> of wire insulation.
>
> 3\. For Ceiling Grid Module System: Ballast primary wiring from
> ballasts shall be 18-gauge (minimum) solid copper wire and terminated
> on terminal blocks located above the grid on filter modules. Terminal
> boxes shall be located above the ceiling grid modules. See Drawings.
>
> 4\. Ground wire shall be provided between ballast/grid.
>
> 5\. All above grid module wiring conduits shall have conduit seals.
>
> C. Lamps
>
> 1\. Lamps shall be 4-ft. T-8, 32W, 3500K, rapid start, Order Code
> #F32T8/TL835, manufactured by General Electric Company, GTE Sylvania,
> Inc., North American Phillips Lighting Corporation, or Westinghouse
> Electric Corporation.
>
> 2\. Spare Lamps: 10 percent of total quantity installed.
>
> D. Lens
>
> 1\. Diffuser shall mount flush with plenum grid without external
> fasteners.
>
> 2\. Clear acrylic wide angle prismatic diffuser, and opaque blank out
> strip shall be used.
>
> 3\. Spare Lenses: 3 percent of total quantity installed.
>
> 4\. Separately package lenses and blank out strips for each plenum and
> label indicating plenum number.
>
> E. Ballasts
>
> 1\. Integrated Circuit Electronic Fluorescent Ballasts: ANSI C82.1;
> minimum power factor of 0.99, UL listed, Class P, Type 1, outdoor
> internally thermally protected. Ballast shall operate lamps at a
> frequency of 20 to 35 Khz without a detectable flicker. Ballasts shall
> provide soft start of rapid start lamps and shall meet requirements of
> FCC (CFR47 Part 18) for electromagnetic and radio frequency
> interference.
>
> 2\. Ballast shall have less than 10 percent total harmonic distortion
> and less than 6 percent third harmonic distortion.
>
> 3\. Ballast shall meet sound rating \"A\".
>
> 4\. Ballast shall have a poke-in wire trap connector.
>
> 5\. Acceptable Manufacturer: Motorola, Magnetek.
>
> 6\. Spare Ballasts: Five of each size and type.
>
> 7\. At least 20 percent of the fixtures supplied or the number shown
> on the Drawings shall contain one additional electronic fluorescent
> ballast as described above. This ballast shall operate a single T-8
> lamp inside each of these emergency fixtures and shall be energized
> from a separate emergency lighting circuit as shown on the Drawings.

2.06 [CONFIGURATION]{.underline}

> A. The ceiling grid module system shall be configured as indicated in
> the Drawings.
>
> B. Ceiling grid modules and all internal components shall be factory
> painted with electrostatic powder coat epoxy after all prefabrication
> has been completed.
>
> C. Refer to the Drawings for size and performance requirements.
>
> **[PART 3 - EXECUTION]{.underline}**

**3.01 [INSTALLATION/APPLICATION/ERECTION]{.underline}**

> A. General System Installation
>
> 1\. The manufacturer shall provide field supervision for the complete
> installation of the ceiling assembly.
>
> 2\. It is the intent that the grid system be installed to line and
> true level, symmetrical to room and spaces, and with due regard to
> appearance and structural stability. The ceiling shall be level
> throughout within 1/8 in.
>
> 3\. The grid modules shall be suspended directly from structural steel
> frame above in accordance with ASTM C 636 and the manufacturer\'s
> current printed instructions for the type of installation used.
>
> B. Filter Installation
>
> 1\. Filters shall be carefully removed from cartons and other
> packaging material.
>
> 2\. A pre-installation filter leak field bench test will not be
> required for filters showing no physical signs of shipping damage. The
> manufacturer shall perform field bench tests for all filters with
> shipping/handling damage as described in Paragraph 1.06 above.
>
> 3\. The filters shall be installed in the support frames by personnel
> instructed in the proper method of installation and aware of the need
> for special handling precautions according to the manufacturer\'s
> instructions. Continuous supervision shall be provided by the
> manufacturer to observe all stages of filter installation.
>
> 4\. The manufacturer shall be responsible for the removal,
> replacement, and retesting of any HEPA filter failing the
> Certification Tests.
>
> 5\. All filter modules installed within any single ceiling grid module
> shall have an airflow operating resistance within 5 percent of all
> others, a velocity uniformity of [+]{.underline}20 percent at rated
> flow, and [+]{.underline}25 percent at reduced flow. Airflow
> uniformity shall be determined with two readings in each of the four
> quadrants measured 10 in. below the filter face.
>
> C. Light Fixture Installation
>
> 1\. Lamps and lenses shall snap in place to completely enclose fixture
> and provide a flush face of a grid finish. Finished installation shall
> create a continuous strip of fixture lenses without any gaps or
> exposed cracks to capture dirt particles.
>
> 2\. Responsibilities for installation of the lighting system shall be
> as follows:
>
> a\. Ceiling Grid Installation Contractor
>
> 1\) Grid system module assembly complete with lamp, ballast,
> lamp-holders, wiring between lamp-holders and ballast and between
> ballast and terminal boxes.
>
> b\. Electrical Contractor
>
> 1\) Installation of manufacturer-furnished lamps and lenses.
>
> 2\) Termination of power supply conductors at terminal boxes.

**3.02 [PENETRATIONS]{.underline}**

> A. All penetrations in the clean room ceiling grid shall be
> pre-drilled and sealed at the factory.
>
> B. No field drilling of the ceiling grid will be permitted.
>
> C. All penetrations through the ceiling plane must be sealed airtight
> to prevent contaminant migration through the ceiling from the
> interstitial area into the clean room.

**3.03 [FIELD QUALITY CONTROL]{.underline}**

> A. In-Place Testing
>
> 1\. When all filters have been installed, seals between filter and
> supporting framework and seals at perimeter of filter bank shall be
> scanned for bypass leakage. Scan test may be made by either or both of
> the following methods and in accordance with IES-RP-CC-006.
>
> a\. Installation probe test with a discrete-particle counter using
> polystyrene latex (PSL) spheres sized at 0.20 microns and larger for
> the filter media supplied at sufficient amounts of challenge aerosol
> to attain uniform dispersement upstream of filters.
>
> b\. HEPA filter ceiling system shall be challenged with PSL spheres
> 0.20 to 0.30 microns having PSL concentration of 106 to 107 PSL per
> ft3 of challenged air. The challenge downstream shall be no more than
> 0.01 percent of the upstream concentration.
>
> 1\) Test apparatus shall include a sampling probe discrete particle
> counter and a challenge aerosol.
>
> 2\. A particle count of greater than 100 particles per ft3 0.30
> microns and larger shall be taken as indication of a leak(s) and
> further conventional scanning techniques shall be utilized to locate
> leak(s).
>
> 3\. Aerosol particle size range shall be from 0.20 microns or larger
> for tests on the systems.
>
> B. Manufacturer\'s Start-up Services
>
> 1\. The manufacturer\'s service representative shall provide
> representations during initial start-up of the clean room in the
> presence of the SNL and the Engineer.
>
> 2\. Upon completion of the inspections, start-up, testing, and
> check-out procedures, the ceiling manufacturer shall submit written
> notice to SNL that the units are ready for beneficial use by the SNL.
>
> 3\. In order to establish the minimum service requirements, a
> manufacturer\'s representative for the equipment specified herein
> shall be present at the job-site for the minimum man-days listed,
> travel time excluded: (Total)
>
> a\. Twenty man-days for installation supervision.
>
> b\. Five man-days for performance testing.
>
> c\. Five man-days for start-up and maintenance instructional time.
>
> C. Testing and Certification: The entire clean room will be balanced
> and certified by others.
>
> D. Light Penetration Test
>
> 1\. Final completion of the clean room ceiling construction must
> result in a room assembly which is airtight and watertight.
>
> 2\. Contractor shall demonstrate that the finished ceiling assembly
> meets this criteria by performing visual bright-light test on all
> critical construction joints.
>
> 3\. All construction joints shall be tested where ceiling grid modules
> connect to each other, in addition to all utility penetrations through
> the ceiling.
>
> 4\. Tests will be performed using a minimum 400 watt light source
> inside the clean room, and an observer inspecting for light leakage at
> the test point inside the clean room.
>
> 5\. All leakage points must be repaired and retested.
>
> 6\. SNL reserves the right to witness confirmation tests on an
> unlimited number of points after field test have been completed to
> verify room integrity.
>
> END OF SECTION