DLA A-A-55301-1996 WEBBING TEXTILE TEXTURED OR MULTIFILAMENT NYLON《纹理或尼龙纺织带状织物》.pdf
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1、W 9038054 0003954 974 D INCH-POUND A-A-55301 November 15,1996 COMMERCIAL ITEM DESCRIPTION WEBBING, TEXTILE, TEXTURED OR MULTIFILAMENT NYLON The General Services Administration has authorized the use of this commercial item description as a replacement for MIL-W-43668 for all Federal agencies. 1 SCOP
2、E. This document covers textured or multifilament nylon (or similar) webbing used for indmequipment belts, rifle slings and load carrying equipment 2. CLASSIFICATION. The webbing shall be in the following types: Type I 2 1/4 inches Type II 1 1/4 inches Type III 1 inch Type IV t 3/4 inch Type V 5/8 i
3、nch Type VI 1 1/2 inch 3. SALIENT CHARACTERISTICS. The webbing shall be made with either textured or untextured synthetic yarn in 6 widths as specified in para 2. 3.1 Materials (descrintion of materias. 3.1.1 Yarn. The yarn for the warp and filling for all types, except for types I and III alternate
4、, shall bxat and light resistant, continuous filament textured nylon yam. Air Jet texturing is acceptable. The filling yarn for type III alteniate shall be textured yarn and the warp yarn for type III alternate shall be textured yarn and the warp yarn for type III alternate and the warp for type I a
5、ltemate shall be heat and light resistant multifilament yam. The yams for ail webbing shall not be subjected to any type of bleaching process. 3.1.2 Twist. When untextured yarn is used the face, back and binder warps of the Type I construction the yarn shall have a minimum of 2 1/2 turns per inch in
6、 the find twist. The number of singles yarn shall be twisted together in one operation. 3.2 Color. The color shall be as specified by the procuring activity. Beneficial comments, recommendations, additions, deletions, clarifications, etc. and any data which may improve this document should be sent t
7、o: Defense Personnel Support Center, Clothing and Textiles Directorate, Attn: DPSC-FNS, 2800 South 20th Street, Philadelphia, PA 19145-5099. AMSC N/A FSC 8305 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited Provided by IHSNot for ResaleNo reproduction or networking p
8、ermitted without license from IHS-,-,-= 9038054 0003955 800 = Wavelength( nm) 600 620 640 660 A-A-5530 1 Reflectance) Min Mm 3 10 3 10 3 10 3 11 3.2.1 Matchin . The color of the dyed webbing shall match the standard sample (Samples can be obhdm DPSC) when viewed under filtered tungsten lamp which ap
9、proximate artificial daylight having a correlated color temperature of 7500+/- 200K, with illumination of 100 +I- 20 foot candles, and shall be a good match to the standard sample under incandescent lamplight at 2300 +/- 200 K. Wavelength(nm) 740 760 780 800 820 840 860 3.2.2 Colorfastness. The dyed
10、 webbing shall show fastness to light and laundering equal to or better than the standard sample or equal to or better than a rating of 4 when tested against it self. The number of test samples shall be one per sample unit and the size shall be two to six grams of webbing(test methods AATCC 61-1A-19
11、89 and AATCC 16 Opt A-1990). The dyed webbing shall show fastness to crocking equal to or better than the standard sample or shall have an AATCC Chromatic Transference scale rating of not lower than 3.5 (Test method AATCC 8- 1989). Reflectance(%) Min Mm 7 52 11 60 17 64 24 67 32 70 37 71 40 73 3.2.3
12、 Spectral reflectance for Camouflage green 483. Finished Camouflage Green 483 webbing greater than 1 1/4 inches in width shall meet the spectral reflectance factors (in percent) for the visiblehear infrared wavelength range 600 to 860 nanometers (nm) as specified below when tested as follows. Spectr
13、al reflectance data shall be obtained fkom 600 to 860 nanometers (nm), at 20 nm intervals on the spectrophotomer relative to a barium sulfate standard, the prefered white reference standard. Other white reference materials may be used, provided they are calibrated to absolute white; e.g, Halon, magn
14、esium oxide, or vitrolite tiles. The spectral bandwidth shall be less than 26 nm at 860 nm. Reflectance measurements may be made by either the monochromatic or polychromatic mode of operation. . Whenthe polychromatic mode is used, the spectrophotometer shall operate with the specimen diffusely illum
15、inated with the full emission of the source that simulates either CIE Source A or CIE Source D65. The specimen shall be measured as a single layer, backed with two layers of the same webbing and shade. Measurements will be taken on a minimum of two different areas and the data averaged. The specimen
16、 shall be viewed at an angle no greater than 1 O from normal, with the specular component included. Photometric accuracy of the spectrophotometer shall be within one percent and wavelength accuracy within 2 nm. The standard aperture size used in the color measurement device shall be 1 .O to 1.25 inc
17、hes in diameter. When the measured reflectance values for any color at four or more wavelengths do not meet the limits specified in the chart below, it shall be a test failure. Spectral Reflectance Requirements for Camouflage Green 483 680 I 3 13 700 I 4 I 28 720 I 5 I 40 3.3 Physical requirements.
18、The dyed webbing shall conform to the requirements in table I. 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-9018054 O001956 747 3.85 0.70 - 2.30 A-A-55301 1.10 0.5 0.48 0.32 I_ _- - _- TABLE I. Physical requirements Warp ends, full width: Face,
19、back, and middle warps.(min) Face and back (min) Binder warp (min) Stuffer warp (min) Pickdinch (min) Pickdinch (min) (shuttleless loom) Breaking strength lbs (min) - 5/ - IWidth, inches I 2000 1 O00 875 625 b1/4-1/16 21/8 I 1/4+1/16r 1+1/16 -1 3/4 +1/16 I 5/8+1/16 Characteristics Width, inches Thic
20、kness inches 21 Weight oz./lin.yd (Min) 3/ Stiffness load pounds widthwise only 4/ Warp ends, full width: Face and back (min) Binder warp (min) Stuffer warp (min) Pickshch (min) Picksinch (min) (shuttleless loom) Breaking strength Ibs (min) 51 Face, back, and Middle warps (min) /Thickness inches 2/
21、I 0.125 - 0.150 10.075 + 0.007 I 0.046 + 0.007 I 0.055 - 0.0700 I 0.038 - 0.050 Type I (Alternate) Type III (Alternate) Type VI 2 1/4 - 1/16 12 1/16 1 1/2+ - 1/16 0.125 - 0.150 0.046 + 0.007 0.046+ - 0.007 3.85 0.65 1.10 - - 0.70 - 2.30 - _- - 83 97 137 38 22 30 304 _ - 58 1/ 80 1/ 80 11 - 1 O00 150
22、0 Weight oz./lin.yd (Min) 31 Stiffness load pounds widthwise t- only 4/ 33 I 36 64 1/ I 46 I/ I 72 1/ I 66 1/ I 72 1/ TABLE I. Physical requirements(cont) 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-9018054 0001957 683 A-A-55301 4/ Test method
23、FED STD 191 method 5202 2 by 1 inch specimen, long dimension in filling 5/ Test method FED STD 19 1 method 41 08 direction. The specimen shall be bent to a 20 degree angular deflection. 3.4 Weaves. 3.4.1 Type I. The webbing shall be three layers, bound by a binder which weaves 3 up (face, middle, fa
24、ce) 3 down (back, middle, back) to form a filling rib effect on both face and back. The middle layer shall weave 2 ends as 1 equivalent. See Figure 1. 3.4.2 Type I Alternate. The Weave shall be as specified in figure 5. 3.4.3 Type II. The webbing shall be a tubular plain weave bound together by a pl
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