DLA A-A-50196 B-2000 THREAD SILK《丝线》.pdf

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1、 distribution is unlimited Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-50196B SALIENT CHARACIERISTICS 3.1 General description. The thread shall be made from silk. The Machine twist, and Button hole twist thread shall have final twist in Ldire

2、ction. The Hand Sewing, and Embroidery thread shall have final twist in the Tdirection. 3.2 Physical requirements of thread The thread shall conform to the physical requirements specified in Table I. TABLE I Physical requirements Type Tex Breaking Strength lbs. min. Test Method Machine Twist 24 27 3

3、5 45 60 70 90 135 150 1.6 1.9 2.4 2.9 4.0 4.7 6.6 8.7 10.2 Button Hole Twist Tailors 105 6.6 135 8.7 150 10.2 Button Hole Twist Dry Goods 70 4.7 Hand Sewing 40 60 Embroidery 50 70 90 2.4 4.0 3.2 4.7 6.6 ASTM-D-204 ASTM-D-204 ASTM-D-204 u1 ASTM-D-204 u1 ASTM-D-204 u1 ASTM-D-204 u1 ASTM-D-204 u1 ASTM-

4、D-204 u1 ASTM-D-204 u1 ASTM-D-204 u1 ASTM-D-204 u1 ASTM-D-204 1/21 ASTM-D-204 ASTM-D-204 u1 ASTM-D-204 u1 ASTM-D-204 ASTM-D-204 u1 ASTM-D-204 u1 - 11 Testing speed shall be 122 0.5 idmin., and a 10 inch gauge length shall be used. - 21 Five determinations per sample unit. 2 Provided by IHSNot for Re

5、saleNo reproduction or networking permitted without license from IHS-,-,-A-A-50196B 3.3 Color. The color shall be as specified in the applicable end item specification or in the contract order. The color of the finished thread, after removal of finish, shall match the standard sample, when viewed un

6、der filtered tungsten lamps that approximate artificial daylight and that have a correlated color temperature of 7500 I 200 K with illumination of 1001 20 foot candles, and shall be a good match to the standard sample under incandescent lamplight at 230k 200 K. 3.3.1 Finish Removal Procedure Before

7、evaluation for color matching and testing for colorfastness, the thread shall be wet dry-cleaned in accordance with ASTM D-204. Excess solvent shall be removed by centrifuging or wringing. The sample shall be rinsed in distilled water at 120 degrees to 160 degrees F and dried at a temperature not ex

8、ceeding 180 degrees F. The dried sample shall then be conditioned for a minimum of 4 hours prior to evaluation for shade matching or colorfastness testing. 3.4 Colorfastness. Unless otherwise specified in the end item specification or set forth in the contract, the thread for colorfastness to launde

9、ring (after 3 cycles), and wet dry-cleaning, in accordance with ASTM D 204, shall show a 3.5 minimum on the AATCC Gray Scale for Color Change. For colorfastness to light (after 40 standard fading hours) when tested in accordance with AATCC 16, Option A.The thread shall show a 3.5 minimum on the AATC

10、C Gray Scale for Color Change In all three tests the specimens shall be dried after each of the 3 laundering cycles. Only the Wool fiber of the color transfer cloth shall be evaluated for staining. 3.5 Finishing materials No chemical finishes or treatments shall be applied for the purpose of increas

11、ing breaking strength. The thread shall have a soft or wax finish as indicated for the type as specified in the applicable end item specification or procurement document. Soft finish thread shall be dressed thread, having a smooth surface and body suitable for hand sewing. 3.6 Put-up. Unless otherwi

12、se specified, the thread shall be put-up on holders such as commercial spools, cones, or tubes as specified in the contract. The thread shall be wound around the specified holder in one continuous piece, so that each turn and layer is free of entanglement. The outside ending of the thread shall be s

13、ecured to prevent unwinding, loosening or slipping during handling, shipping, or storage. 3.7 Labeling. Each holder shall have a label adhered securely as to remain in place and be clearly legible until all thread has been removed. The label shall be printed with information related to length in yar

14、ds, direction of twist, color, size (Tex), name of thread manufacturer, and nomenclature specifying type (i.e. Machine twist, or Embroidery). 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-50196B 4 REGULATORY REQUIREMENTS. 4.1 Recycled, recove

15、red, or environmentally preferable materialsRecycled, recovered, or environmentally preferable materials should be used to the maximum extent possible in accordance with paragraph 23.403 of the Federal Acquisition Regulation Act (FAR) provided that the material meets or exceeds the operational and m

16、aintenance requirements and promotes economically advantageous life cycle costs. 5. QUALITY ASSURANCE PROVISIONS 5.1 Product conformance. The products provided shall meet the salient characteristics of this commercial item description and conform to the producers own specifications, standards and qu

17、ality assurance practices. The Government reserves the right to require proof of such conformance. 5.2 Preservation, packing and marking The preservation, packing and marking shall be as specified in the contract or order. 6. NOTES 6.1 Sources of Nongovernment Documents. AMERICAN SOCIETY FOR TESTING

18、 AND MATERIALS ASTM-D-204 - Standard Test Methods For Sewing Threads (Applications for copies should be addressed to the American Society for Testing and Materials, 1 O0 Barr Harbor Drive, West Conshohocken, PA 19426-2959.) AMERICAN ASSOCIATION OF TEXTILE CHEMISTS AND COLORISTS (AATCC) AATCC - 16 -

19、Colorfastness to Light Applications for copies should be addressed to American Association of Textile Chemists and Colorists (AATCC) PO Box 122 15, Triangle Park, NC 27709-22 15) THE COLOR ASSOCIATION OF THE UNITED STATES, INC. Standard Color Card of America ( Color cards are available from The colo

20、r association of the United States. 589 Eight Avenue, 12th floor, New York, NY 10018. The web site is ) 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-50196B (Non-Government standards and other publications are normally available from the orga

21、nizations that prepare or distribute the documents. These documents also may be available in or through libraries or other informational services) 6.2 Ordering data. Acquisition documents must specify the following: a. b. c. d. Title, number and date of this document. Type, and size of thread requir

22、ed (see 1.1). Selection of packaging, preservation, and marking (see 5.2) Finish required, specify soft or wax ( see 3.5) 6.3 Replacement data. The types and classes of silk thread covered by this commercial item description replace the items covered by A-A-50 196A as indicated below: A-A-50 196A A-

23、A-50 196B Type I Machine Twist Type II - Class 1 Type II - Class 2 Type III Hand Sewing Type IV Embroider y Button hole twist, tailors Button hole Twist, dry goods MILITARY INTRESTES: Custodians Army-GL Navy - NU Air Force - 11 Review Activity Navy - MC, OS Air Force 82,99 Army- MD, AR CIVIL AGENCY ACTIVITY: GSA - FSS HHS JOD - FPI PREPARING ACTIVITY DLA-CT Project number 8310-0212 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-