1、A-A-52487 January 24, 1994 SUPERSEDES MIL-I-62522(AT) 22 July 1987 COMMERCIAL ITEM DESCRIPTION INSULATION, PANEL NOISE-AND THERMAL-BARRIER The General Service Administration has uthcrized the ;se of tiris commercial item description (CID) as a replacement for MIL-I-62522(AT), which is canceled. ABST
2、RACT This CID covers the physical, and performance characteristics of a composite material used to make insulation panels for use in military vehicles. Insulation panels made from this material are used as noise and thermal barriers. SALIENT CHARACTERISTICS a. Materials and composition. The insulati
3、on composite material shall consist of a noise barrier and a thermal foam barrier. The noise barrier shall completely envelope the thermal foam and, if not, the thermal foam material shall be the closed cell type. The insulation composite material shall not contain any materials which could adversel
4、y affect the health of personnel. The use of recovered material made in compliance with regulatory requirements is acceptable providing that all requirements of this CID are met (see note d). b. Design and construction. The insulation composite material shall be designed and constructed with sound-a
5、nd thermal-barrier properties for use on metal or plastic panels, and shall satisfy the requirements specified herein. 1. Color and configuration. The color and configuration of the . i%=ul.?tic shall b? in accordance with Che applicable engineering drawing (=D) (see note b). 2. Noise barrier. The n
6、oise barrier materia.L shall be self-healing, puncture-resistant, and shall conform to table I. c Beneficial comments, recommendations, additions, deletions clarifications, etc. and any other data which may improve this document should be sent by letter to: U.S. Army Tank-Automotive Command, ATTN: A
7、MSTA-GDS, Warren, MI 48397-5000. AMSC N/A FSC 5640 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Licensed by Information Handling ServicesA-A-52487 TABLE I. Noise barrier material. Characteristic Requirement Weight 0.8 pounds per square foot (lb/ft2) + 10% loaded
8、plastic having a density of 2.5 pounds per cubic foot ( lb/ft3 ) . Tensile strength 120 pounds force per square inch (psi) minimum in accordance with ASTM D412, die A. rear strength 20 pounds force per inch (lb/in) minimum in accordance with ASTM D412, die C. 3. Thermal foam barrier. The thermal foa
9、m barrier material shall be made of urethane foam and shall conform to table II. TABLE II. Thermal foam barrier. Characteristic Requirement Thermal conduc- 0.30 (Btu)/(hour) (square ft) (OF/in) maximum, in con- tivity formance with ASTM C177. Density 15 pounds per square inch (psi) minimum in accord
10、ance Tensile strength 2.000 + 0.2 (lb/ft3) in accordance with ASTM D297. - with ASTM D3574, die A. Elongation 10 percent maximum at 70 + 5OF in accordance with Compression set 200 percent minimum, in accordance with ASTM D412. ASTM D3574 - 4. Insulation composite material. The insulation composite m
11、aterial shall conform to table III. Characteristics Adhesion strengtk barrier to foam Sound trans- mission loss Flammability Temperature limits TABLE III. Insulation composite. Requirements 2.2 pounds per linear inch at 180 degree peel in accordance with ASTM D903. See table IV. 3 inchlminute maximu
12、m in accordance with SAE 5369. -40 to 300F. 2 Licensed by Information Handling ServicesA-A-52487 c. Acoustical performance. The sound transmisS.ion loss shall be in accordance with table IV and ASTM E90. TABLE IV. Acoustical performance. Frequency (HZ) Sound transmission loss * (dB) 1 250 4000 45 20
13、00 40 1000 34 500 29 55 * Of the insulation mounted on 16-gauge sheet steel. prepare an MSDS d. Material safety data sheet (MSDS). The contractor shall when required to comply with the provisions of FED-STD-313 (see notes b and e). e. Identification marking. Unless otherwise specified in the AED ide
14、ntification markings shall be permanent and legible. The following information shall be included as a minimum: 1. Manufacturers CAGE code. 2. Contract number. 3. Date of manufacturer. 4. AED part number. QUALITY ASSURANCE PROVISIONS a. Responsibility for inspection. The contractor is responsible for
15、 the performance of all inspections (examinations and tests). b. Contractor certification. The contractor shall certify and maintain substantiating evidence that the product offered meets the salient characteristics of this CID and that the product conforms to the producers own drawings, specificati
16、ons, workmanship standards, and quality assurance practices. Items with known defects shall not be submitted for Government acceptance. The Government reserves the right to reqyire proof of such conformance prior to the first delivery and thereafter as may be otherwise provided for under the provisi
17、ons of tf:s crincract, PRESERVATION, PACKAGING, PACKING, AND MARKING Preservation, packaging, packing, and marking or the desired level shall be in accordance with the applicable packaging requirements specified by the contracting authority (see note b). NOTES (This section contains information of a
18、 general or explanatory nature that may be helpful but is not mandatory.) a. Addresses for obtaining copies of referenced documents. l. Government specifications and standards. Copies of FED-STD-313, “Material Safety Data, Transportation Data and Disposal Data or Hazardous Materials Furnished to Gov
19、ernment Activities“ are available from the Navy Publishing and Printing Service Office, Standardization Documents Order Desk, Bldg. 4D, 700 Robbins Avenue, Philadelphia, PA 19111-5094. Licensed by Information Handling ServicesA-A-52487 E 9999974 OLbL784 548 m A-A-52487 2. Non-Government publications
20、. ASTM C117 “Steady-State Thermal Transmission Properties by Means of the Guarded Hot Plate“; ASTM D297 “Rubber Products-Chemical Analysis“; ASTM D412 “Rubber Properties in Tension“; ASTM D903 “Peel or Stripping Strength of Adhesive Bonds“; ASTM D3574 “Flexible Cellular Materials-Slab, Bonded, and M
21、olded Urethane Foams“; ASTM E90 “Laboratory Measurement of Airborne Sound Transmission Loss of Building Partitions“; are available from the American Society for Testing and Materials (ASTM), 1916 Race Street, Philadelphia, PA 19103. SAE J369 “Flammability of Polymeric Interior Materials - Horizontal
22、 Test Method, Standard“ is available from the Society of Automotive Engineers, Inc. (SAE), 400 Commonwealth Drive, Warrendale, PA 15096. t 3 b. Ordering data. Acquisition documents must specify the following: 1. Title, number, and date of this CID. 2. Title, number , and date of AED. 3. Identify act
23、ivities requiring copies of completed MSDS and specify 4. Selection of applicable level and packaging requirements. 5. Issue of the DODISS and the Industry Standards to be cited in the where the MSDS will be inspected. solicitation and the specific issue of individual documents referenced. c. Cross-
24、reference. Insulation conforming to this CID are interchangeable/substitutable with insulation conforming to MIL-I-62522(AT). d. Regulatory requirements. The offeror/contractor is encouraged to use recovered materials in accordance with Public Law 94-580 to the maximum extent practicable. e. MSDS. T
25、he contracting officer should identify those activities requiring - copies of the completed MSDS prepared in accordance with FED-STD-313. MILITARY INTERESTS: Custodian: Army - AT CIVIL AGENCY COORDINATING ACTIVITY: GSA-FSS Preparing activity: Army - AT (Project 5640-0557) 4 Licensed by Information Handling Services
