National Institute of Standards & Technology, Acquisition & Assistance Div., Bldg. 301, Rm B117, Gaithersburg, MD 20899

99 -- SOUND ABSORPTION MATERIAL AND INSTALLATION SOL 52SBNB8C1108 DUE 081798 POC Contract Specialist, David Orris, (301) 975-4154; e-mail, david.orris@nist.gov, or Contracting Officer, Pauline Mallgrave; (301) 975-6330, e-mail, pauline.mallgrave@nist.gov WEB: NIST Contracts Homepage, http://www.nist.gov/admin/od/contract/contract.htm. E-MAIL: NIST Contracts Office, Contract@nist.gov. The National Institute of Standards and Technology (NIST) has a requirement for sound absorption material and installation at the NIST campus located in Gaithersburg, MD. Delivery and installation are required within 90 days after purchase order award. FOB is destination. A general description of the requirement follows. The contractor shall furnish and install commercially available sound absorbers to the ceiling and wall areas of the Guide Hall Building and the Reactor Confinement Building (building C100) in accordance with the technical specifications. For the Guide Hall building, the contractor shall furnish approximately 800 hanging baffle type ceiling absorbers, in sufficient quantity to install according to the drawings provided with the request for quotation. The contractor shall provide an extra 10 panels to be used as replacements. The hanging baffle type ceiling absorbers shall measure approximately 2 x 4 feet and at least 2 inches thick. The sound absorption per panel shall meet or exceed the following minimum acceptable sound absorption per panel in Sabines: Freq., Hz 125 250 500 1k 2k 4k Adsorption 3.0 5.9 11 13 12 9.1 Baffle absorber shall be the manufacturer's standard product. Surface covering shall be of a type that can be wiped clean. The net weight of all ceiling mounted absorber material, including all material required to hang or mount the ceiling panels shall not exceed 4,000 pounds dead load. The color shall be neutral beige or tan. All panels shall meet American Society For Testing And Materials (ASTM) E 84 Class AA@ or A1" fire rating. The contractor shall furnish and install a minimum of 10,000 square feet (of the available 13,600 square feet) of wall absorbers as shown in the drawings provided with the request for quotation. This area may be made up of standard panels or custom sized panels that efficiently and uniformly cover the available wall area of the Guide Hall. Wall absorber surface covering shall be of a type that can be wiped clean, the color shall be neutral beige or tan and shall meet ASTM E 84 class AA@ or A1" fire rating. The contractor shall provide an additional 80 -- 100 square feet of wall panel, uninstalled, to be used as repair or replacement materials. The wall absorber panels shall meet or exceed the following minimum absorption coefficient specifications determined in accordance with ASTM standards: Freq., Hz: 125 250 500 1k 2k 4k Abs. Coeff: 0.1 0.3 0.7 0.9 0.99 0.99 Baffles shall be hung from the roof joists in the Guide Hall in an alternating pattern on approximately 5 foot centers as shown in the drawings. The total number of installed baffles shall be as close to 800 has this pattern will allow. The installation procedures must be in strict agreement with the manufacture's recommended installation directions. The elevation of the bottom of the ceiling baffles shall be uniform over the ceiling area and shall not hang lower than 2 feet above the top level of the light ballast units (located approximately 7 feet below roof deck level). The wall soundabsorption panels shall be installed according to the following specifications. The available wall area (13,600 square feet) between the upper and lower window banks, shall be uniformly and efficiently cover a minimum of 10,000 feet (standard or custom sized panels may be used. Installation materials and methods must be in strict accordance with the manufacturer's installation directions. For the C100 building, the contractor shall furnish and install a minimum of 4,000 square feet (of the available 8200 square feet) of absorber material installed horizontally in the available recessed regions of the C100 ceiling. This area may be made of standard or custom sized panels that efficiently and uniformly cover the available ceiling space. The contractor shall furnish an additional 80 -100 square feet of the product, uninstalled, for use as replacements. The ceiling absorbers shall meet or exceed the following minimum absorption coefficient specification determined in accordance with all applicable ASTM standards: Freq., Hz: 125 250 500 1k 2k 4k Abs. Coeff: 0.3 0.7 0.9 0.99 0.99 0.99 Material thickness must not protrude below the recessed areas defined by the ceiling beams (this requirement implies a maximum material thickness of 18 inches). The absorber material covering shall be of a type that can be wiped clean. Color shall be a neutral beige or tan. Absorber material shall meet an American Ass. ASTM E 84 Class AA@ or A1@ fire rating. Ceiling absorbers shall be mounted horizontally in the recessed portions of the ceiling. The installation method must be in strict accordance with the manufacturer's recommended installation directions. The Government anticipates the award of a firm-fixed price purchase order utilizing FAR Part 12 commercial procedures. All responsible sources may submit a quotation which will be considered by the agency. Please request copies of the request for quotation in writing. Requests may be telefaxed to (301)963-7732. The request for quotation will be available on the NIST external web page. The Internet address is for this web site is: http://www.nist.gov/admin/od/contract/contract.htm (without quotes). Posted 07/24/98 (W-SN227974). (0205)

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