1、MIL-C-2711A 83 7977906 0387570 7 _ - MIL-C-29118A -. 28 May 1976 SUPERSEDING MIL-C-29118 24 January 1973 MILITARY SPEC IF ICAT ION CLOTH , TWILL, COTTON This specification is approved for use by all Departments and Agencies of 1. SCOPE the Department of Defense. 1.1 Scope This specification covers t
2、he requirements for one type of cotton twill cloth. 2. APPLICABLE DOCUMENTS * 2.1 Issue of documents The following documents of the issue in effect on date of invitation for bids or request for proposal, form a part of this specification to the extent specified herein. . s P EC I F I CAT ON s FE DER
3、 AL PPP-P-1134 - Packaging and Packing of Cotton and Cotton-synthetic Fiber B1 end Fabrics (Excluding Duck Fabrics) STANDARDS FEDERAL FED-STD-4 FED-STD-191 - Textile Test Methods - Glossary of Fabric Imperfections MIL I TARY MIL-STD-I05 -. Sampling Procedures and Tables for Inspection by Attributes
4、(Copies of specifications y standards, drawings , and publications required by suppliers in connection ui th specific procurement functions should be obtained from the procuring activity or as directed by the contracting officer.) .-_ . ., . . : . .- ,. . . . . . Provided by IHSNot for ResaleNo repr
5、oduction or networking permitted without license from IHS-,-,-MIL-C-2711118A 83 M 7777706 03875711 7 = I Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-271LA 3 m 7774706 0387572 O m - MIL-C-29118A 3.5 Physical requirements The finished cloth s
6、hall conform to the physical requirements shown in Table I when tested as specified in 4.4. Tab1 e I - Physi cal . requirements Tearing Wei gh t Yarns per Breaking c trength s tength oz./sq. yd. (g/m2) inch (min.) (min.) pounds (min.) pounds Min. Max. Warp Filling Warp fi 11 ing warp filling I I I I
7、 I 3.5.1 Weave The weave shall be a 3/1 right hand tw 11. 3.5.2 Width The width shall be as specified (see 6.2) and shall be the 3.6 Finish The cloth shail be closely singed, desited and mercerized. minimum acceptable width, inclusive of selvage. The cloth shall be finished with the filling flush si
8、de as the face (twill side down) (see 4.3.1). 3.7 Nonfibrous materials The finished cloth shall not exceed 2.0 percent starch and protein content including chloroform-soluble and water-soluble material when tested as specified in 4.4. 3.8 Dimensional stability The finished cloth shall not shrink mor
9、e t 2.0 percent in either the warp or filling direction when tested as spec in 4.4; The pre-shrinking process used shall not be identified by name trademark; either on the cloth, ticket or package. 3.9 pH The pH value of the water extract of the finished cloth shall not less than 5.0 nor more then 8
10、.5 when tested as specified in 4.4. an fied or be 3.10Marking The face side of the cloth shall be identified by stamping 3-11; Length and put up Unless otherwise specified (see 6.2), the cloth on that side with the word “FACE“ at each end of each piece. shall be furnished in continuous lengths, each
11、 not less than 40 yard. lengthshall be put up in flat folded pieces or on full width rolls as specified in PPP-P-1134, with the fabric face on the inside. + i Each -e 3.12 Fiber identification Each roll or piece of cloth shall be labe or ticketed for fiber content in accordance with the Rules and Re
12、gulat under the Textile Fiber Products Identification Act. . 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-2711A 3 D 7777906 0387573 2 I! MIL-C-29118A 3.13 Workmanshi The finished cloth shall conform to the quality establids specification.
13、The demerit points per 100 square yards (83.6n?),when calculated as specified in Section 4, shall not exceed the established maximum point value. 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibi.1ity for inspection Unless otherwise specified in the contract, the contractor is responsible for the perfo
14、rmance of all inspection requirements as specified herein. the contractor may use his own or any other facilities suitable for the performance of the inspection requirements specified herein, unless disapproved by the Government. inspections set forth in the specification where such inspections are
15、deemed necessary to assure supplies and servi ces conform to the prescribed requirements. 4.1.1 Certificate of compliance Where certificates of compliance are sub- mitted, the Government reserves the right to check test such items to determine the validity of the certification. Except as otherwise s
16、pecified in the contract, The Government reserves the right t perform any of the 4.2 First article inspection When required, the first article of finished cloth shall be visually inspected for color, finish and appearance and shall be tested for chemical and physical properties in accordance with th
17、e applicable methods specified in 4.4. 4.3 Inspection except where otherwise indicated. 4.3.1 Component and material inspection In accordance with 4.1 above, components and materials chal 1 be inspected and tested in accordance with all requirements of referenced specifications , drawings , and stan
18、dards unless otherwise excluded, amended, modified, or qualified in this specification or applicable purchase document. In addition, the supplier shall furnish a certificate of compliance for the cotton, fiber identification, the combing requirement and the finishing requirements specified in 3.3.1
19、and 3.6. Inspection shall be performed in accordance with MIL-STD-105, 4.3.2 Examination of the end item Examination of the end item shall be in accordance with 4.3.2.1 through 4.3.2.4. 4.3.2.1 Yard-by-yard examination be examined on the face side only. roll does not exceed 100 yards (91.4m) , the e
20、ntire yardage in the piece roll shall be examined. When the total yardage in the piece or roll exceeds 100 yards (91.4m) , only 100 yards (91.4m) shall be examined. Defects as defined in Sectim I of FED-STD-4 which are clearly noticeable at normal inspection distance (3 feet) (.9lm) shall be scored
21、and assigned demerit points as listed in 4.3.2.1.1 except that only those slubs and knots which exceed the limits shown on Sears Fabric Defect Scales (see 6.4), ID“ for slubs and “C“ for knots , shall be scored. No continuous linear yard (increment of one yard (.9lm) on the measuring device of the i
22、nspection machine) from any one piece Each piece or roll in the sample shall When the total yardage in the piece or 4 . . : ., . . , . . . . . -. . - 1-. I 72;. .-.: _ ._ Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-ZSLLBA 83 I 7777706 03875
23、7Lt Lt -. MIL-C-29118A or roll within the sample, shall be penalized more than 4 points. sample unit for this examination shall be one linear yard (.9lm. sample size shall be 20 pieces or rolls selected from 20 containers. determination of acceptability on the average quality of the lot, tbe lot sha
24、ll be unacceptable if the points per 100 square yards C83.6 )exceeds 30.0 pints. The lot chal1 be unacceptable if the points per 100 square yards (83.6111 ) of two or more individual pieces or rolls exceeds 45.0 poins. If no individual piece or roll exceeds the point level, the lot shall be accepted
25、. 20 pieces or rolls shall be selected for individual piece or roll quality examination only. If no piece or roll in the second sample exceeds the point value, the lot shall be accepted. the value, the lot shall be rejected. Point computation for the lot quality and individual piece or roll quality
26、shall be as follows: The The For If one piece or roll exceeds the point level, a second sample of If one or more piece or roll exceeds Total points scored in sample x 3600 =Points aer 100 Contracted width of cloth (inches) x Total yards inspected square yards (83.6) 4.3.2.1.1 Demerit points For defe
27、cfs up to and including 3 inches (76.2) in any dimension - one point For defects exceeding 3 inches (76.2mm), but not exceeding 6 inches - two points For defects exceeding 6 inches (152.4mm), but not exceeding 9 For defects exceeding 9 inches (228.6mm) in any dimension - four points Demerit points s
28、hall be assigned as follows: (152.4) in any dimension inches (228.6) in any dimension - three points a The following defects, when present, shall be scored 4 points for each yard in which they occur: Baggy, ridgy or wavy cloth Width less than specified Poor dye penetration, mottled, streaky, or clou
29、dy Excessive neppiness r +: 4.3.2.2 - Examination for length . 43.2.2.1 Individual pieces or roils During the yard-by-yard e eackpiece or roll in the sample shall be examined for length. found. to be less than the minimum specified or mre than 2 yards -i ami n ati on, nY lensth (i .82d less than the
30、 length marked on the ticket shall be considered a defect with resrtect to lensth. The lot shall be unacceptable if two or more pieces or rolis in the sample are defective with respect to length. a 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-NI
31、L-C-29LlBA 83 977970b 0387575 b = MIL-C-29118A 4.3.2.2.2 Total yardage in sample The lot shall be unacceptable if the total of the actual lengths of pieces or rolls in the sample is less than the total of the lengths marked on the tickets.” The pieces or rolls examined shall be those selected for th
32、e examination of individual pieces or rol 1s. 4.3.2.3 Examination for shade During the yard-by-yard examination each piece or roll shall be examined for shade. Any piece or roll in the sample off shade (compared to the standard sample), shaded side to side, side to center or end to end shall be caus
33、e for rejection of the entire lot represented by the sample. process and non-conformance with the Textile Fiber Products Identification Act During the yard-by-yard examination, each pece in the sample shall be examines for these defects. rolls in the sample have face identification missing from eith
34、er or both ends, two or more pieces or rolls in the sample contain identification of the pre- shrinking process by name ortrademark on the cloth or ticket, or are not labeled or ticketed in accordance with the Textile Fiber Products Identifica- tion Act 4.3.2.4 Exami nati on for face i den ti fi cat
35、i on , i denti fi cation of pres hri nki ng The lot shall be unacceptable if two or more pieces or 4.3.3 Examination of preparation for delivery requirements An examination shall be made in accordance with the provisions of PPP-P-1134 to determine that packaging, packing and marking comply with the
36、Section 5 requirements of this speci fi cati on. wherever applicable and as listed in Table II shall be followed. and chemical values specified in Section 3, except where othervise indicated, apply to the results of the determinations made on a sample unit for test purposes as specified in the appli
37、cable test methods. All test reports shall contain the individual values utilized in expressing the final result. The sample unit shall be 3 7/2 yards (3.19m), full width of the finished cloth. The lot size shall be expressed in units of one yard (.9lm). The samPle size shall be as follows and the l
38、ot shall be unacceptable if one or more sample units fail to meet any requirements specified. 4.4 Testing of the end item The methods of testing specified in FED-STD-191, The physical - Lot size (yards) Sample size (units) 800 or less 2 801 up to and including 22,000 3 22,001 and over 5 6 Provided b
39、y IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-27LlA 3 m 7777706 0387.576 W 7 MIL-C-29118A Table II - Test Methods Characteri s ti c Yarn ply Warp Filling Materi al Identi fication Sulfur content Colorfastness to: Light Crocking Pers pi rat i on Launder
40、ing Salt water and soap Wei gh t Yarns per inch Warp Filling Breaking strength Warp Filling Tearing strength Warp Filling Weave Nonf i brous materi als Di mens i on al s tabi 1 i ty Requi rement paragraph 3.3.1 3.3.1 3.3.1 3.4.1 3.4.3 3.4.3 3.4.3 3.4.3 3.4.3 3.5 3.5 3.5 3.5 3; 5 3.5 3.5 3.5.1 3.7 3.
41、8 Test Method Visual i/ Visual i/ 1200 2/- 2020 - 5660 - 3/ 565 1 56 80 5610 4J 5632 5041 50 50 50 50 5100 5100 51 34 51 34 Visual l/ 261 1 5550 281 1 H 3.9 !/ - One determination per sample unit and the result reported as “pass“ or - 2/ A-certificate of compliance is required and will be acceptable
42、 for the - 3/ To be tested for 20 hours. - 4/ Only the stain on the cotton fiber of the transfer cloth shall be “fail“. stated requirement. eval uated. 5. PREPARATION FOR DELIVERY - 5.1 Packaging 5.1.1 Levels A and C The cloth, pu up as specified (see 3.11), shall Packaging shall be level A or C, as
43、 specified (see 6.2). be packaged in accordance with the applicable requirements of PPP-P-1134. 5.2 Packing Packing shall be level A, B, or C, as specified (see 6.2). P 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-29118A 5.2.1 Levels A, 8,
44、 and C The cloth shall be packed in accordance with 5.3 Marking the applicable requirements of PPP-P-1134. or order, shipments shall be marked in accordance with the applicable requirements of PPP-P-1134. In addition to any special marking required by the contract 6. NOTES 6.1 Intended use The cloth
45、 covered by this specification is intended for 6.2 Ordering data Procurement documents should specify the fol lowing: use in fabricating radioactive contaminants protective garments. a. b. c. Width required (see 3.5.2). d. e. Title, number and date of this specification. When first article is requir
46、ed (see 3.2). Length required if other than specified (see 3.11). Levels of packaging and packing required (see 5.1 and 5.2). 6.3 Standard sample 6.4 Sears Fabric Defect Scales are available from Sears, Roebuck and For access to the standard sample (see 3.1), address the procuring activity issuing t
47、he invitation for bids. Company, Department 7334 “Sears Defect Replica Kit“, Sears Tower, Chicago, Illinois 60684. * 6.5 Changes from previous issue The margins of this specification are marked with an asterisk to indicate where changes (additions, modifications, corrections, deletions) from the pre
48、vious issue were made. as a convenience only and the Government assumes nc liability whatsoever for any inaccuracies in these notations. Bidders and contractors are cautioned to evaluate the requirements of this document based on the entire content irrespective of the marginal notations and relation
49、ship to the last previous issue. This was done Custodians : Preparing activity: Amy - GL Navy - SA Air Force - 11 Project No. 8305-0226 Navy - SA Review activities : Navy - MS Air Force - 11, 99 User acti vi ties : Navy - OS, YD; CG * U. S. GOVERNMENT PRINTING OFFICE: 1976-603-766/5564 8 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-
