GSA A-A-2721-1992 FILE BACKER PAPER《文件夹衬里》.pdf
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1、O a A-A-2723 9999974 0333363 bTO DISTRIBUTION STATEMENT A: Approved for public release; distribution is unlimited METRIC J A-A-2721 August 08,1992 COMMERCIAL ITEM DESCRIPTION FILE BACKER, PAPER The General Services Administration has authorized the use of this commercial item description as a replac
2、ement for Federal Specification W-F-350 which has been cancelled. This commercial item description covers a letter size paper file backer, equipped with a prong type paper fastener for holding paper. 1. Salient Char acterist ics A. Paper stock of the file backer shall conform to the physical require
3、ments listed in Section 2 when tested with the appropriate test method. B. The file backer shall be 21.59cm by 27.94cm (8-1/2 by 11 inches). A tolerance of f 0.08cm (I 1/32 inch) is allowed in both dimensions. .C. The paper fastener shall be made of metal suitable for the purpose intended, and shall
4、 meet the requirements listed in Section 2 when tested with the appropriate test method. The prongs shall be attached to, or a continuation of, each end of the base. The metal shall be 0.030cm f 0.003cm (0.012 inch thick f 0.001 inch). The base length of the fastener shall be 6.99cm ( 2-3/4 inches).
5、 The prongs shall be 3.811 f 0.16 ( 1-1/2 inches f 1/16 inch) and shall have a width of not less than 0.48cm nor more than 0.56cm ( 3/16 inch nor more than 7/32 inch). or tinned. The paper fastener shall be coated with lacquer, or baked enamel D. The paper file backer shall be designed to hold lette
6、r size paper. grain of the paper backer shall run parallel with the largest dimension. The edges of the file backer shall be shear cut and square within the dimensional tolerance. to the paper backer and centered 1.75cm f 0.16cm ( 11/16 inch f 1/16 inch), from the top of the file backer on the 21.59
7、cm (8-112 inch) side. The The paper fastener shall be permanently affixed I FSC 7510 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-2 7 2 1 A-A-2721 m 9999974 01iL33b2 537 m Workmanship. The paper file backer shall be free from any defects which
8、 mau affect their appearance or serviceability and the finish shall be smooth and uniform. The paper fastener shall be free from sharp or rough edges 3 which may present a hazard to the user or damage the file paper. 2. Tables and Te st Methods 4 Requirement Test Method Basis Weiuht 60.96cm x 91.44c
9、m - 500 sheets 68.04 kg + 8% / - 5% TAPPI T 410 (24 x 36 in). - 500 sheets ( 150 pounds + 8% / - 5%) Thickness (0.028cm + 0.001 / - 0.002cm) TAPPI T 411 (0.011 inch + 0.0005 / - 0.0008) Tearing Resistance,Total 520 grams minimum 18.34 02s minimum TAPPI T 414 Bend Test, The fastener prongs shall be i
10、nserted through the perforation of one sheet of paper and bend prongs down to base (prong position when fastener is secured) : sDonsibilitv - for I nsDecti- Unless otherwise specified in the contract or purchase order, the supplier is responsible for the performance of all inspection requirements as
11、 specified herein. Except as otherwise specified, the supplier may utilize his own facilities or any commercial laboratory acceptable to the Government. The Government reserves the right to perform any of the inspections set forth in the Commercial Item Description, where such inspections are deemed
12、 necessary to assure that supplies and services conform to the prescribed requirements (See Section 7, Ordering Data). Each lot of file backers shall be inspected for conformance to the requirements herein. MIL-STD-105 using the plans specified below. A. Sampling for visual examination - Inspection
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- GSAAA27211992FILEBACKERPAPER 文件夹 衬里 PDF
