DLA A-A-55100-1992 YARN COTTON《棉纱线》.pdf
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1、A-A-55100 9999974 O339686 Lb7 A-A-5 5 1 O O 10 NOVEMBER 1992 COMMERCIAL ITEM DESCRIPTION YARN: COTTON The General Services Administration has authorized the use of this Commercial Item Description in preference to Military Specification MIL-Y-l6698(GL). ABSTRACT Abstract. The yarn shall be one type
2、of cotton, suitable for carpet warps in hand weaving occupational therapy. SALIENT CHARACTERISTICS General description. The yarn shall be made of clean cotton which has been carded, spun, and twisted into yarn. The yarn shall be 8/4 ply 2 3 percent, 6 to 7 1/2 turns per inch of “S“ twist in the ply.
3、 The plied yarn shall have a breaking strength of 7 pounds minimum when tested as specified under end item performance testing. Color. or col standa The color of the yarn shall be natural, bleached white, .or, as specified, and shall conform to an approved shade .rd. When white is specified, the yar
4、n shall be bleached using a peroxide type bleach. No tinting is permissible and the use of optical bleaches is not permitted. When natural is specified, the yarn shall be the natural shade. Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in impr
5、oving this document should be addressed to: Defense Personnel Support Center, Clothing and Textiles Directorate, Attn: DPSC-FSSD, 2800 South 20th Street, Philadelphia, PA 19101-8419, by using the Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by
6、 letter. AMSC N/A FSC 8310 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-55100 9999974 OLLb87 OT3 A-A-55 1 O0 Labile Sulfur. The use of dyes and compounds contain
7、ing elementary sulfur or compounds capable of oxidation to sulfuric acid is prohibited when tested as specified under end item performance testing. Shade Matchinq. The color shall match the standard sample under natural (north sky) dayli ht or artificial daylight having a color temperature of 75008
8、Kelvin and shall be a aood approximation to the standard sample under incandscent lamplight at 2800 Kelvin. Colorfastness. The dyed and finished yarn shall show a minimum of Class 3 fastness to laundering when tested as specified under end item performance testing. Put-up. The yarn shall be put up o
9、n spools containing 840 yards - + 10 percent. Label/markinq. Each spool shall be labeled or ticketed for fiber content in accordance with the Textile Fiber Products Identification Act. Workmanship. After completion, the finished yarn shall be thoroughly cleaned, and all loose thread, lint, and forei
10、gn matter removed. QUALITY ASSURANCE Certification. The contractor shall certify, and maintain substantiating evidence, that the product offered meets the salient characteristics and requirements of this Commercial Item Description, and that the product conforms to the producers own specifications,
11、standards, and quality assurance practices. The Government reserves the right to require proof of such conformance prior to first delivery and thereafter as may be otherwise provided for under the provisions of the contract. Visual examination. Yarn.lots shall be inspected in accordance with ANSI/AS
12、QC 21.4. The inspection level shall be I and the acceptable quality level (AQL), expressed in terms of defects per hundred units, shall be 2.5. The lot size shall be expressed in units of one spool. The sample unit shall be one spool. Defects. The yarn shall be examined for the following defects: an
13、y spot or stain, clearly visible at normal inspection distance (approximately 3 feet), any burr, shive or foreign matter; wrong color, off shade, i.e. not within established tolerances; package which is cut, torn, chafed, or otherwise damaged, affecting the free unhampered unwinding of yarn or affec
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- DLAAA551001992YARNCOTTON 棉纱 PDF
