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3FNE 98-578B April 2, 2009 SUPERSEDING 3FNE 98-578A May 10, 2000 Freestanding Partitions, Moveable Partitions and Demountable Walls 1. Scope. This document defines technical and performance requirements for freestanding and interconnecting partitions, and demountable walls. 2. Freestanding partitions. Freestanding partitions shall not exceed 75 inches in height. Partitions shall not include provisions for hanging furniture components or for mounting lighting fixtures. Panels may be provided with a pre-wired base as part of the construction. 2.1 Performance and safety. Freestanding partitions shall meet applicable requirement of ANSI/BIFMA X5.6-2003. The panel electrical system shall meet the requirements of UL Standard 1286. 2.2 Acoustical requirements. Freestanding acoustical partitions shall have a minimum noise reduction coefficient (NRC) of 0.65 when tested as specified herein for acoustics. 2.3 Flammability requirements. All freestanding partitions shall have a maximum flame spread rating of 25 and a maximum smoke development of 450 when tested as specified herein for flammability. 3. Moveable Partitions. Moveable partitions are tackable acoustical/non acoustical, mounted on a finished/painted lightweight metal/aluminum frame with legs that have Lockable ball bearing casters. Panels are joined with full length hinges. Brackets shall be provided to secure the panels in 90° intersections, T-connections and wall mounted configurations. The panels shall have gang locks or other mechanisms for joining panel sections in long runs. FSC 7110 3FNE 98-578B 3.1 Acoustical Requirements. If the moveable partitions are advertised and are to be sold as acoustical, they must have a NRC of 0.30 when tested as specified herein for acoustics. 3.2 Flammability Requirements. If the moveable partitions are stand alone, no flammability tests are required. If they are intended to interface with other furniture components they shall have a maximum flame spread rating of 75 and a maximum smoke development of 450 when tested as specified herein for flammability. 4. Demountable walls. Demountable walls are acoustical panels that are mounted on horizontal and/or vertical frames. Panels shall be factory assembled into complete individual panel units. Panels shall be available in solid face and door panels. Clerestories and glazed (tempered safety glass) may be offered. If glazed clerestories are offered they must comply with Federal Safety Standard for Architectural Glazing Materials (16 CFR, Part 1201). Panels shall allow installation over a finished floor, tile or carpet, without damage to the floor. Panels shall interlock with adjacent panels or use internal vertical supports. The system shall allow two, three and four way connections. All fasteners shall be concealed. The panel base and top shall adjust to accommodate floor and ceiling irregularities and shall prevent light and sound leakage. A horizontal wiring raceway shall be standard. Each panel shall be fully removable. 4.1 Acoustical requirements. Demountable walls shall have a minimum Sound Transmission Class (STC) of 35, when tested as specified herein for acoustics. 4.2 Flammability requirements. Demountable walls shall have a maximum flame spread rating of 25 and a maximum smoke development of 450 when tested as specified herein for flammability. 5. Test requirements. 5.1 Laboratories. Partitions(including face panels and panel inserts), demountable walls, and wall coverings shall be tested by an independent laboratory or the vendor’s ISO Guide 17025 self certified testing facility or the vendor’s ISO 9001 registered facility. 5.2 Flammability. Testing for smoke development and flame spread shall be in accordance with American Society for Testing and Materials (ASTM) E-84, Standard Test Method for Surface 2 3FNE 98-578B Burning Characteristics of Building Materials. Alternatively, the fire test may be conducted in accordance with Underwriters Laboratories (UL) Standard No. 723 or National Fire Protection Association (NFPA) Standard No. 255. 5.3 Acoustical tests. 5.3.1 Test report. The acoustical test report must state in detail the construction of the item tested and identify by series or model number the item tested. New tests are required, if during the course of the contract there are changes in components/ construction of the item or the test standard has been revised. Tests are good for three years. If anytime during the course of the contract period the test becomes more than three years old, new tests are required. 5.3.2 Noise reduction coefficient. The acoustical tests must be in accordance with the ASTM Standard Test Method for Sound Absorption Coefficients by the reverberation Room Method, C-423 (most recent issue), utilizing an average measurement over the four standard octave intervals, 250, 500, 1000, and 2000 HZ. The test shall be conducted on the entire assembled panel, fullface area (the complete core, adhesive, decorative fabric, frame, raceway and joining components). Both sides of the panel shall be tested. 5.3.3 Sound transmission class. Sound transmission class (STC) shall be determined by testing in accordance with ASTM Standard E-90 and classified in accordance with ASTM Standard E-413. Test reports shall be no more than three years old at the time set for receipt of offers. 5.3.1 Test reports. 5.3.1.1 Age of tests. 5.3.1.1 Freestanding panels. The report shall be not more than one year old when submitting offer. The test shall be conducted two times a year. Test reports are to be submitted to: GSA/FAS/IWAC/3QSAB 2200 Crystal Drive Arlington VA 22202 Failure to submit test reports may result in cancellation of the contract. 3 3FNE 98-578B 5.3.1.1.2 Demountable walls. Test reports are required to be submitted with the offer, and shall be not more than one year old at the time set for receipt of offers. During the term of the contract new testing shall be conducted every three years. If the construction/components or test standard has changed prior to the three year term, new tests are required. 5.3.1.2 Report content. The test report must state in detail the construction of the item tested from the inside out and identify by series or model number the item tested. 5.3.1.3 Test samples. The test shall be conducted on the entire assembled unit (the complete core, adhesive, decorative fabric, frame and joining components). The test must be conducted for each different fabric, and interior construction. However, additional fabrics or sheet–film finishes not exceeding 0.89mm in thickness may be offered for inclusion under the contract without additional testing provided the following conditions are met: (1) A test was conducted on the complete item, which is acceptable to GSA. (2) The fabric or sheet-film finish not exceeding 0.89mm in thickness on the item was tested and complied with the National Fire Protection Association (NFPA) Standard No. 701. (3) The additional fabrics or sheet-film finishes offered were tested and comply with NFPA No. 701. (4) There are no other changes in construction. 4