1、MIL-W-272b5E 83 W 777770b 0443478 5 F MIL-W-27265E . . .“ MILITARY SPECIFICATION 27 June 1988 SUPERSEDING 21 March 1979 - MIL -W-27265 D WEBBING, TEXTILE, WOVEN NYLON IMPREGNATED This specification is approved for use by all Departments and Agencies of the Department of Defense. 1. SCOPE l. 1 Scope.
2、 This document covers resin or latex impregnated woven nylon textile webbing. 1.2 Classification. The after-treated webbing shall be one of the following classes as specified (see 6.2): Class R - Resin impregnated Class L - Latex impregnated 2. APPLICABLE DOCUMENTS 2.1 Government documents. 2.1.1 Sp
3、ecifications, standards, and handbooks. The following specifications, standards, and handbooks form a part of this sDecification to the extent specified herein. Unless otherwise specified, the issues of these documents shall be those listed in the issue of the Department of Defense Index of Specific
4、ations and Standards (DODISS) and supplement thereto, cited in the solicitation. Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be. addressed to: U.S. Army Natick Research, Development, and Engineering Center,
5、Natick, MA O1 760-50 14 by using the self- addressed Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter. AMSC N/A FSC 8305 * DISTR-IBUTION STATEMENT A. Approved for public release; distribution is unlimited. Provided by IHSNot for ResaleNo
6、 reproduction or networking permitted without license from IHS-,-,- =” MIL-W-27265E 83 W 7777706 0441477 7 W MIL-W-27265E SPECIFICATIONS . MIL ITA RY MIL-W-4088 - Webbing, Textile, Woven Nylon MIL-W-17337 - Webbing, Textile, Woven Nylon MIL-P-43334 - Packaging of Textile Webbing and Tape STANDARDS F
7、E DE RAL FED-STD- 191 - Textile Test Methods MILITARY MIL-STD-105 - Sampling Procedures and Tables for Inspection by Attributes (Copies of specifications, standards, and handbooks required by contractors - in connection with specific acquisition functions should be obtained from the contracting actz
8、vity or as directed by the contracting activity.) 2.1.2 Other Government documents, drawings, and publications. The following other Government documents, drawings, and publications form a part of this specification to the extent specified herein. Unless otherwise specified, the issues shall be those
9、 in effect on the date of the solicitation. Rules and Regulations Under the Textile Fiber Products Identification Act (Copies may be obtained from the Federal Trade Commission, Pennsylvania Avenue at Sixth Street, N.W., Washington, DC 20580-0001 .) (Copies of drawings, publications, and other Govern
10、ment documents required by contractors in connection with specific acquisition functions should be obtained from the contracting activity or as directed by the contracting activity, 1 * 2.2 Order of precedence. In the event of a conflict between the text of this specification and the references cite
11、d herein, the text of this specification shall take precedence. Nothing in this specification, however, shall supersede applicable laws and regulations unless a specific exemption has been obtained, 3. REQUIREMENTS 3.1 First article. When specified in the contract or purchase order, a sample shall b
12、e subjected to first article inspection (see 4.3, 6.2, and 6.4). 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-z MIL-W-27265E 83 W 7777906 OLILILLI80 3 W - T MIL-W-27265E * 3.2- Material (see 6.5). The untreatednylon webbing to be impregnated sha
13、ll conform to the type, class, width, and color of MIL-W-4088 or MIL-W-17337 as specified (see 6.2). * 3.2.1 Class R - resin impregnated. The class R webbing shall be impregnated with polyvinyl butyral plasticized with butyl ricinoleate or Resin TR-5418-3 or Resin Solucote 1013 (see 6.7). The resin
14、shall be applied from a water dispersion, dried and cured to form a firm-adherent and even deposit or coating on the yarns of the webbings (see 6.6). 3.2.1.1 Breaking strength, after treatment. The breaking strength of the treated class R webbing shall be no less than.the applicable minimum requirem
15、ent specified in MIL-W-4088 or MIL-W-17337 when tested as specified in 4.4.3. 3.2.1.2 Breaking strength, resistance to abrasion. The breaking strength, after abrasion, for all types of treated class R webbing, except type XVIII, of MIL-W-4088 shall be no less than 80 percent of its breaking-strength
16、 after treatment when tested as specified in 4.5. The breaking strength, after . abrasion, of the type XVIII treated class R webbing shall be no less than 75 percent of its breaking strength after treatment when tested as specified in 4.4.3. 3.2.1.3 Weight. The weight of the treated class R webbing
17、shall not exceed the maximum specified for the untreated webbing plus 10 percent of the specified untreated weight when tested as specified in 4.4.3. 3.2.1.4 Thickness. The thickness of the treated class R webbing shall be no more than the maximum specified for the untreated webbing and no less than
18、 the minimum specified for the untreated webbing with a minus tolerance of 12 percent when tested as specified in 4.4.3. * 3.2.1.5 Extractable matter. The extractable matter in methylethyl ketone of polyvinyl butyral treated class R webbing for all types except type XVIII of MIL-W-4088 shall not exc
19、eed 8.5 percent by weight and for type XVIII shall not exceed 4.5 percent. The resin solids content of Resin TR-5418-3 or Resin Solucote 1013 treated class R webbing for all types except type XVIII of MIL-W-4088 shall not exceed 8.5 percent by weight and for type XVIII shall not exceed 4.5 percent.
20、Testing shall be as specified in 4.4.3. 3.2.2 Class. L - latex impregnated. The class L webbing shall be impregnated with natural rubber latex containing the necessary curatives and anti-oxidants to meet the physical properties specified herein. 3.2.2.1 Breaking strength, after treatment. The breaki
21、ng strength of the treated class L webbing shall be no less than the applicable minimimum requirement specified in MIL-W-4088 or MIL-W-17337 when tested as specified in 4.4.3. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-i MIL-W-27265E I 3.2.2.2
22、 Breaking strength, resistanceto abrasion. The breaking strength, as specified in 4.4.3. after abrasion for all types of treated class L webbing of MIL-W-4088 shall be no less than 80 percent of its breaking strength after treatment when tested 3.2.2.3 Breaking strength, after accelerated aging. The
23、 breaking strength of the treated class L webbing after accelerated aging shall be no less than 95 percent of the breaking strength after treatment, when tested as specified in 4.5. In addition, the specimens after accelerated aging shall display no evidence of stickiness or gumming when tested as s
24、pecified in 4.4.3. 3.2.2.4 Weight. The weight of the treated class L webbing shall not exceed the maximum specified for the untreated webbing plus 10 percent of the specified untreated weight when tested as specified in 4.4.3, 3.2.2.5 Thickness. The thickness of the treated class L webbing shall be
25、no more than the maximum specified for the untreated webbing and no less than the minimum specified for the untreated webbing with a minus tolerance of 12 percent when tested as specified in 4.4.3. 3.2.2.6 Stiffness. * 3.2.2.6.1 At -65OF. The class L treated webbing shall be subjected to a temperatu
26、re of -65OF 2 20F and compared for stiffness to a specimen tested at standard conditions and the results obtained shall not be more than three times greater than the results obtained at standard conditions, when tested as specified in 4.4.3. 3.2.2.6.2 At -650F, after accelerated aging. After acceler
27、ated aging the class L treated webbing shall be tested for stiffness as specified in 4.4.3. The results shall be compared to that of a treated but unaged specimen similarly tested and shall vary not more than 2 20 percent, when tested as specified in 4.4.3. . 3.3 Color. When undyed webbing is specif
28、ied, the color of the webbing may deviate from the natural state to that degree imposed by the color of the treating agent used. When dyed webbing is specified, the dyed untreated webbing shall match the applicable shade standard (see 6.2 and 6.3), and the shade imparted by the treatment shall be ac
29、ceptable. * 3.3.1 Matching. The color of the webbing shall match the standard sample when viewed under filtered tungsten lamps that approximate artificial daylight and that have a correlated color temperature of 7500 2 200K, with illumination of 100 5 20 foot candles and shall be a good match to the
30、 standard sample under incandescent lamplight at 2300 2 200K. 3.3.2 Colorfastness. The dyed and treated webbing shall show colorfastness to light and laundering equal to or better than the standard sample. When no standard sample is established for colorfastness, the dyed and treated webbing shall s
31、how “good“ fastness to light and “fair“ fastness to laundering when tested as specified in 4.4.3. 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-5 MIL-W-272bSE 83 7777906 0443482 7 m 4 MIL-W-27265E 3.4 Length and put-up. The webbing shall be put-u
32、p in rolls. Unless otherwise specified (see 6.21, the length- and put-up shall be as specified in MIL-W-4088 or MIL-W-17337, as applicable. 3.5 Identification tickets. Each roll of webbing shall have an identification ticket attached to the roll in accordance with MIL-P-43334. When webbing is not pr
33、ocured directly by the Government, the information to be printed on the ticket shall appear on the container, and marking of the rolls will not be necessary. 3.6 Fiber identification. Each roll of webbing shall be labeled or ticketed for fiber content in accordance with the Textile Fiber Products Id
34、entification Act. 3.7 Workmanship. The finished webbing shall conform to the quality of product established by this document and the occurrence of defects shall not exceed the applicable acceptable quality levels. 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for inspection. Unless otherwise sp
35、ecified in the contract or pur,chase order, the contractor is responsible for the performance of all inspection requirements as specified herein. Except as otherwise specified in the contract or purchase order, the contractor may use his own or any other facilities suitable for the performance of th
36、e inspection requirements specified herein, unless disapproved by the Government. -The Government reserves the right to perform any of the inspections set forth in this document where such inspections are deemed necessary to assure supplies and services conform to prescribed requirements. 4.1.1 Resp
37、onsibility for compliance. All items must meet all requirements of sections 3 and 5. The inspection set forth in this document shall become a part of the contractors overall inspection system or quality program. The absence of any inspection requirement in the document shall not relieve the contract
38、or of the responsibility of assuring that all products or supplies submitted to the Government for acceptance comply with all requirements of the contract. Sampling in quality conformance does not authorize submission of known defective material, either indicated or actual., nor does it commit the G
39、overnment to acceptance of defective material. 4.1.2 Certificates of compliance. When certificates of compliance are submitted, the Government reserves the right to inspect such items to determine the validity of the certification. 4.2 Classification of inspections. The inspection requirements speci
40、fied herein are classified as follows: a. First article inspection (see 4.3). b. Quality conformance inspection (see 4.4). 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-W-272bSE 83 W 99999Ob OLILI2483 9 W 5 E MIL -W-272 65 E 4.3 First article
41、 inspection. When.a first article is required (see 6.2), it shall be visually examined for appearance and color, and tested for the characteristics specified in 4.5. The presence of any defect or failure to pass any test shall be caused for rejection of the first article. 4.4 Quality conformance ins
42、pection. -Unless otherwise specified, for inspection shall be performed in accordance with MIL-STD-105. * 4.4.1 Component and material inspection. In accordance with 4.1 components and materials shall be inspected in accordance with all sampling the 9 requirements of referenced documents unless othe
43、rwise excluded, amended, modified, or qualified in this document or applicable purchase document. 4.4.2 End item examination. * 4.4.2.1 Yard-by-yard examination. The webbing shall be examined on both sides for the defects listed in table II. All defects found shall be counted regardless of their pro
44、ximity to each other, except where two or more defects represent a single local condition, in which case only the more serious defect shall be counted as one defect for each warpwise yard or fraction thereof in which it occurs, . The lot size shall be expressed in yards. The sample unit shall be one
45、 linear yard. The inspection level shall be III and the acceptable quality level (AQL), expressed in terms of defects per hundred units, shall be 2.5 minor for defects. In addition, the lot shall be rejected if one or more critical defects appear in the sample. The number of rolls from which the sam
46、ple yardage is to be selected shall be in accordance with table I. The sample yardage shall be apportioned equally among the selected rolls. TABLE I. Sample size Lot size (yards) Sample size in rolls Acceptance number 2/ 1,200 or less 1/ 3 1,20 1 up to an3 including 3,200 5 3,20 1 up to and includin
47、g 10,000 8 10,001 up to and including 35,000 13 35,OO 1 up to and including 150,000 20 150,001 and over 32 - 1/ If a lot contains fewer than 3 rolls, each roll in the lot shall be examined. - 2/ Applicable to overall and length examinations only. 6 Provided by IHSNot for ResaleNo reproduction or net
48、working permitted without license from IHS-,-,-i MIL -W-272 65 E TABLE II. End item visual. defects . , . Exami ne Defect Classification Abras i on marks Any Crease Permanent, resulting from faulty impregnation procedure Cut, hole, or tear Any Stain or steak Impregnation compound. stain or streak cl
49、early visible at distance of 6 feet Thin or weak place Any Uneven impregnation Any Critical Minor X X X X X X * 4.4.2.2 Overall examination. The webbing shall be examined for the defects listed below. Each defect listed shall be counted not more than once in each roll examined. The sample size shall be the applicable number of rolls indicated in table I. Each roll in the sample shall be examined over its entire length. The lot shall be rejected if the total
