1、MIL-W-81116B 15 November 1972 Superseding 10 May 1965 MIL-T-81116A(ASG) MILITARY SPECIFICATION WEBBING, TEXTILE, POLYAMIDE, HIGH TEMPERATURE RESISTANT, LOOP This specification is approved for use by all Depart- ments and Agencies of the Department of Defense. 1. SCOPE 1.1 . This specification covers
2、 the requirements for a high temperature resistant loop webbing used as a lacing tape in flight clothing. 2. APPLICABLE DOCUMENTS * 2.1 of invitation for bids or request for proposal, form a part of the speci- fication to the extent specified herein: The following docuinents of the issue in effect o
3、n date SPECIFICATION Military MIL-W-43334 Webbing and Tape, Textile, .Packaging. and Packing of STANDARD Federal FED-STD-191 Textile Test Methods Mil it ary MIL-STD-105 Sampling Procedures and Tables for Inspection by At tributes Provided by IHSNot for ResaleNo reproduction or networking permitted w
4、ithout license from IHS-,-,-_-_ MIL-W-LLLbB 3 = 7777706 04047bO O 9 MIL-W-81116B (Copies of specifications, standards, drawings, and publications re- quired by suppliers in connection with specific procurement functions should be obtained from the procuring activity or as directed by the contracting
5、 officer . ) * 2.2 Other publications - The following document forms a part of this specification to the extent specified herein. indicated, the issue in effect on date of invitation for bids or request for proposal shall apply. Unless otherwise Rules and Regulations Under the Textile Fiber Products
6、 Identification Act (Application for copies should be addressed to the Federal Trade Commission, Washington, D.C. 20580.) 3. REQUIREMENTS * 3.1 with respect to all characteristics for which the standard sample is ref- . erenced (see 6.3). Standard sample - The webbing shall match the standard sample
7、 * 3.2 Materials - The webbing shall be produced from a high tem- perature aromatic polyamide yarn. less than 675F (357C). The yarn shall not char at a temperature 3.2.1 Loop cord - The loop cord used in the manufacture of the lacing loop we3bing shall be constructed in such a manner and with such y
8、arn tension that the core yarns are held firmly in place to prevent puckering of the core yarns when released from stress. the requirements specified in Table I. The cord shall conform to 3.3 Webbing - The finished webbing shall conform to the require- ments specified in Table II. 3.3.1 Weave - The
9、finished loop webbing shall be woven in accord- ance with the weave diagram shown in Figure 1. 3.3.2 Length relationship between loop cord and inished webbing - The finished webbing shall contain a length of 45 + 1 inch of cord for each yard of webbing in order to produce the desired loop opening. *
10、 3.3.3 the procuring activity. spun solution dyed fibers. * 3.3.4 Matching - The color shall match the standard sample un- der natural (north sky) daylight or artificial daylight having a color tem- perature of 7500“ Kelvin and shall be a good approximation to the standard sample under incandescent
11、lamplight at 2800“ Kelvin. Color - The color of thewebbing shall be as specified by The color shall be obtained by the use of melt 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-W-3LLbB 3 U 797790b 0404763 MIL-W-81116B TABLE I. CORD PHYSICAL P
12、ROPERTIES CHARACTERISTICS REQl Yarn size, denier Yarn ply, minimum Yarn twist, turns per inch, minimum Spin Ply Number of carriers Ends per carrier Number of ends Picks per inch Weave Breaking strength, pounds, minimum Yards per pound, minimum SLEEVE 200 3 8s 62 20 1 20 26-28 Plain - IREMENTS TABLE
13、II. WEBBING PHYSICAL PROPERTIES CHARACTERISTICS Yarn size, denier Yarn ply Warp Filling Yarn count, minimum Face warp Back warp Cord warp Total warp Filling per inch Width, inch 5 1/32 Webbing and cord woven together WeSbing and cord loop Yards per pound, maximum Breaking strength, pounds, minimum C
14、ORE CORD 150 200 1 REQUIREMENTS 200 Single 3 38 37 1 76 60 5/16 7/16 67 175 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-W-BLLLhB 83 m 0b 0404762 4 i/ MIL-W-81116B Ir Provided by IHSNot for ResaleNo reproduction or networking permitted witho
15、ut license from IHS-,-,-MIL-W-BLLLhB 83 9777706 0404763 b . _ MIL-W-81116B * 3.4 webbing shall be no less than 5.0 nor more than 8.0 when tested as specified in 4.3. - The pH value of the water extract of the finished 3.5 Length of spool - Unless otherwise Specified, each spool of webbing shall cont
16、ain 50 & 2 yards. more than 2 pieces, and no piece shall be less than 10 yards in length. No spool shall contain * 3.6 Identification tickets - Each spool of webbing shall be labeled, ticketed, or invoiced for fiber content in accordance with the Textile Products Identification Act. * 3.7 Workmanshi
17、p - The.webbing shall conform to the quality and grade of product established by this specification. of defects shall not exceed the acceptable quality levels specified herein. The occurrence *4. QUALITY ASSUANCE PROVISIONS * 4.1 Responsibility or inspection - Unless otherwise specified in the contr
18、act or purchase order, the supplier is responsible for the per- formance of all inspection requirements as specified herein. Except as otherwise specified in the contract or order, the supplier may use his own or any other facilities suitable for the performance of the inspection requirements specif
19、ied herein, unless disapproved by the Government. The Government reserves the right to perform any of the inspections set forth in the specification where such inspections are deemed necessary to assure supplies and services conform to prescribed requirements. a * 4.1.1 Certificate of compliance - W
20、here certificates of compliance are submitted in accordance with 4.3, they shall contain verifiable actual test inspection data. The Government reserves the right to inspect and test webbing to verify the validity of the certification. * 4.2 Inspection - Sampling for inspection shall be per- formed
21、in accordance with MIL-STD-105, except where otherwise indicated hereinafter. * 4.2.1 Examination of the end item - Defects found during the examination shall be classified in accordance with 4.2.1.1, 4.2.1.2, and 4.2.1.3. 5 Provided by IHSNot for ResaleNo reproduction or networking permitted withou
22、t license from IHS-,-,-_ _I_ MIL-W-LLLbB 3 W 7999906 0404764 W MIL-W- 81116 B * 4.2.1.1 Yard-by-yard examination - The sample of webbing shall be examined on both sides and the defects shall be classified in accord- ance with Table III. The defects found shall be counted regardless of their proximit
23、y to each other except where two or more defects represent a single local condition of the webbing in which case only the more serious defect shall be counted. A continuous defect shall be counted as one defect or each warpwise yard or fraction thereof in which it occurs. The sample size for this ex
24、amination shall be selected in accordance with MIL-STD-105, Inspection Level II, with an acceptable quality level of 2.5 major defects and 10 total defects per 100 units (yards). required sample yardage shall comprise approximately an equal number of yards out of each selected spool, the sample is t
25、o be selected shall be in accordance with Table IV. * 4.2.1.2 Overall examination - Each defect listed below shall be counted no more than once in each spool examined. for this examination shall be one spool. number shall be as shown in Table IV. The lot size shall be expressed in units of 1 linear
26、yard. The sample unit for this examination shall be 1 linear yard. The The number of spools fromwhich The sample unit The sample size and acceptance *Defects Off shade, not within established tolerances. Cloudy, mottled or streaky throughout. Poorly constructed, not firmly ana tightly woven. Poor co
27、lor penetration. Objectional odor. Overall uncleanness. Not labeled in accordance with Textile Fiber Products Identification Acts. 4.2.1.3 Examination of length - .k examined for the following defects. shall be one spool. shown in Table IV. yard each. 4.2.1.3.1 Individual spool - Each spool in the s
28、ample shall be The sample size and acceptance number shall be as The sample unit for this examination The lot size shall be expressed in units of 1 linear 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-U-8LLLbB 83 = 9799906 040Y765 T M MIL-W-8
29、1116B TABLE III. CLASSIFICATION OF DEFECTS DEFECT Abrasion mark Broken and missing ends or picks Coarse filling bar Crease or wrinkle, edge folded or rolled Cut, hole, or tear Drop-ply Edge cut, torn or frayed Edge beaded or corded Edge loopy Edge loose (slack) DEFINITION Resulting in rupture of ind
30、ividual yarns or plies, distortion in the orientation of threads, dimensional distortion, areas noticeably thin- ner than adjoining unaffected areas, or in nap sufficient to obscure the identity of any yarns. TWO or more COntigUOUS .regardless of extent. Single Resulting in noticeably increased stif
31、fness or thickness of webbing. Hard, embedded Any cut, hole, or tear Two or more drop-ply end in the same length. Single drop-ply end in the same length. Any cut, torn, or frayed edge. Noticeable increase in thickness, or misformed edge. Forming clearly visible filling loops, or edge tied loosely to
32、 body of webbing for 2 linear inches or more L/ Resulting in waviness, distortion in orientation of filling, or looseness along edge. :LASS 11 IAJOR CATION MINOR X X X X 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-U-8LLLbB 83 7799906 Oq047b
33、b L W MIL- W-8 111613 DEFECT Edge tight Scalloped edge Fine or light fill- ing bar, light place Floats or skips Hitch-back crack, open place Jerked-in filling, slough-off, slug Kinks Knots Mispick, double pick TABLE III. (Contd) DEFINITION Resulting in noticeable tension along edge, or pucker, wavin
34、ess, bagginess, or slackness that cannot be flattened by manual pressure. Any noticeable indentation of edge. Clearly noticeable Any multiple floats or skips. Single float or skip more than 1/4 inch in length in warpor fullwidth of the tape in the filling direction. Single, floating for 1/4 inch or
35、less in warp direction, or up to full width of the webbing in the filling direction, Clearly noticeable opening be- tween adjoining picks or warpwise tension area over part of the width, resulting in noticeable light and heavy places. More than twice the thickness of the norm1 yarn. More than three
36、in any 9 linear inches. More than one knot in any 9 linear inches. Single knot with untrimmed ends extending from surface of tape. Two or more contiguous Cingle 8 CLASSIFICATION HA JOR X c X X X X X X MINOR Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS
37、-,-,-MIL-W-BLLLbB 3 m 7977706 0404767 3 W MIL-W-81116B DEFECT Slack end 9 9 Smash Spot, stain, or streak Tight end Tight pick or tight filling Weak, soft, or tender spot Wrong draw Width TABLE III. (Contd) DEFINITION Two or more in same length, jerked in between picks, or forming clearly noticeable
38、loops on surface of tape. Any smash. Any clearly noticeable dirt, rust, grease, oil spots, stain, or streak. Clearly noticeable L/ Resulting in rolling of tape (see also “edge scalloped“). Any weak, soft, or tender sput. Extending for more than 9 inches. Beyond tolerance, CLAS SIFICAT ION MAJOR MINO
39、R X X X X X - i/ Clearly visible at normal distance of 3 feet. * TABLE IV LOT SIZE IN YARDS SAMPLE SIZE IN SPOOLS up to 1200 3 1201 up to and including 3200 3201 up to and including 10,000 5 8 10,001 up to and including 35,000 13 35,001 up to and including 150,000 20 150,001 and over 32 MAXIMUM NUMB
40、ER OF DEFECTS ACCEPTABLE IN SAMPLE - i/ o O O O 1 2 - 1/ If a lot contains fewer than 3 spools, each roll in the lot shall be examined 9 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-. MIL-W-LLL6B 83 W 7777706 040q768 5 MIL- W- 81116 B * Defect Gro
41、ss length less than specified minimum length or more than specified maximum length. Gross length more than 2 yards less than gross length marked on piece ticket. Any piece less than the allowable minimum length of piece. Any spool containing more than the allowable number of pieces permitted for the
42、 applicable type of webbing. * if the total of the actual gross lengths of Spool in the Sample is Pess than the total of the gross lengths marked on the spool tickets. 4.2.1.3.2 Total yardage in sample - The lot shall be unacce table * 4.2.2 Examination of preparation or delivery requirements I- An
43、examination shall be made in accordance with the provisions of MIL-W-43334 to determine that packaging, packing, and marking comply with the section 5 requirements. * 4.3 Testing of the end item - The methods of testing speci- fied in FED-STD-191, wherever applicable, and as listed in Table V shall
44、be followed. When the data in the “number of determinations“ and “results reported as“ columns are not specified in the table, they shall be as re- quired by the referenced test method, specified in section 3 apply to the results of the determinations made on a sample unit for test purposes as speci
45、fied in the applicable test methods. All test reports shall contain the individual values utilized in expressing the final result. The sample size shall be as follows: The physical arid chemical values Lot size (yards) Sample size 800 or less 2 3 22,001 and over 5 801 up to and including 22,000 The
46、lot shall be unacceptable if one or more units fail to meet any require- ment specified. sample unit for testing shall be 10 yards. The lot shall be expressed in units of 1 linear yard. The * 5. PREPARATION * 5.1 Packaging - Packaging shall be level A, B, or C as speci- fied (see 6.2). * 5.1.1 Level
47、s A, B, and C - Webbing, put up as specified, shall be packaged in accordance with the applicable requirements of MIL-W-43334. 10 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-W-LLL6B 3 W 7777706 04047b7 7 W MIL-W-81116B TABLE V. TEST METHOD CH
48、ARACTERISTICS REQUIREMEN REFERENCE TEST METHOD Identification Char point Denier Twist Ends per carrier Number of ends Picks per inch . Yarn count Breaking strength Yards per pound Number of carriers Weav? Melt spun dyed PH 3.2 3.2 Tables I, II Tables I, II Table I Table I Table I Table I Table II Ta
49、bles I, II Tables I, II Table I Figure I, Table I 3.3.3 3.4 - i/ 11 4021 &/ visual 4054 visual visual visual 5050 4102 5040 visual visual 11 2811 - i/ Unless otherwise stated, a certificate of compliance shall -e submittel and will be acceptable for the stated requirements. * 5.2 Packing - Packing shall be level A, By or C as specified
