1、MIL-C- 11390C( GL) 21 February 1966 SUPERSEDING MIL- -11390B( QMC ) 4 May 1962 MI LIT ARY 8 PE CI F I CATI ON RETAINING, CHLOROPRENE 1. SCOPE * 1.1 This specification covers a laminated coated fabric containing 3 plies of chloroprene coated cotton balloon cloth. SPECIFICATIONS FEDERAL CCC-T-191 - Te
2、xtile Test Methods. PPP-P- 5 1 - Packaging, Packing and Marking of Textile Fabrics (Woolens, Vorsteds, Cotton, Silks and Synthetics). MILITARY MIL-C-12318 - Cloth, Cotton, Balloon. STANDARDS FEDERAL CLOTH, LAMINATED: COTTON, BALLOON, 3 PLY, AIR 2. APPLICABLE DOCUMENTS 2.1 The following documents of
3、the issue in effect on date of invitation for bids or request for proposal, form a part of this spec- ification to the extent specified herein: FED. STD. NO. 406 - Plastics, Methods of Testing. FED; STD. NO. 601 - Rubber: Sampling .and Testing. MILITARY MIL-STD- 105 - Sampling Procedures and Tables
4、for Inspection by Attributes. (Copies of specifications, standards, drawings and publications, required by suppliers in connection with specific procurement functions, shall be obtained from the procuring activity ar as directed by the contracting officer.) THIS DOCUMENT CONTAINS /o PAGES. IFSC 8305
5、1 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-LL370C 83 = 7777906 O377376 5 _ MIL-C- 11390C( GL) 3.4 Performance requirements.- The laminated
6、coated fabric, when tested as specified in table IV, shall conform to the requirements specified in table II. TABLE II - Performance requirements of laminated coated fabric Breaking strength, pounds, minimum Ini t ia1 Warp (length) 80 Filling (width) 75 After accelerated weathering Warp (length) Fil
7、ling (width) 90% of initial breaking strength 90% of initial breaking strength Ply adhesion, lbs. per in. of width, minimum Warp (length) 4.5 Filling (width) 4.5 Pemeability, liters per sq. meter per 24 hours, maximum 6.0 Accelerated weathering - i/ - i/ soft and tacky or show other signs of imprope
8、r vulcanization. The laminated coated fabric shall not become stiff and brittle or 3.5 Dimensions and put-up. - 3.5.1 Width.- The minimum width of the laminated coated fabric shall be 39 inches unless -otherwise specified (see 6.2). 3.5.2 Length and put-up.- The lapiinated coated fabric shall be The
9、 length of rolls shall The maximum number of Splices in individual plies, put up in rolls as specified in PPP-P-51. be not less than 80 or more than 100 yards. splices permitted in any roll shall be 3, except in the center (bias) ply, shall be counted as splices and considered the same as full splic
10、es through all 3 plies. occurring in the bias ply only, shall not be counted as splices. Splices 3.6 Marking,- The coat-ed fabric shall be marked in accordance with any one of the methods specifiedin (a), (b) or (c) below. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted withou
11、t license from IHS-,-,-MIL-C-LL390C 83 999990b 0377377 7 m MIL-C-l139OC(GL) Marking shall be along one edge of the outside proofing and shall extend the full length of the coated fabric. compatible with the chloroprene compound. The marking material shall be (a) Green thread shall be plainly visible
12、 and continuous on the outside proofing within 1 inch from the edge. shall be incorporated in the outside proofing before the curing operation. A painted or stamped green strip, 1/4 to 1/2 inch wide, shall be not more than 3/4 inch from the edge. A painted or stamped series of green dots or dashes s
13、hall be in a line not more than 3/4 inch from the edge. Diameter of the dots or width of the dashes shall be 1/4 to 1/2 inch. Distance between dots or dashes shall be not more than 3 feet, The thread (b) (c) 3.7 Workmanship.- The finished, laminated coated fabric shall conform to the quality and gra
14、de of product established by this specification, The occurrence of defects shall not exceed the applicable acceptable quality levels. 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for inspection.- Unless otherwise specified in the contract or purchase order, the supplier is responsible for the
15、performance of all inspection requirements as specified herein. as otherwise specified, the supplier may utilize his own facilities or any commercial laboratory acceptable to the Government. reserves the right to perform any of the inspections set forth in the specification where such inspections ar
16、e deemed necessary to assure supplies and services conform to prescribed requirements. Except The Government 4.2 Preproduction sample inspection.- The preproduction sample submitted in accordance with 3.1 shall be visually inspected for appearance. properties in accordance with 4.3.3 to the extent a
17、pplicable. The sample shall be inspected for all physical and chemical 4.3 Inspection.- Inspection shall be performed in accordance with the provisions set forth in MIL-STD-105 except where otherwise indicated. * 4.3.1 Components and material inspection.- In accordance with 4.1 above, components and
18、 materials shall be inspected and tested in accordance with all the requirements of referenced specifications, drawings and standards unless otherwise excluded, amended, modified or qualified in this specification or applicable purchase documents. supplier shall submit a certificate of compliance fo
19、r the following requirements: In addition, the 4 ._ Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Copper content less than 0003% Manganese content less than 0.0015% Coating compound is composed of chloro- prene and contains no other synthetic rubbe
20、r, no natural rubber and no re- claimed rubber 302.1 3.2.1 3.22 ._ Dusting powder 3.2.3 3.3 Weight and orientation of each ply 3.3 Construction of laminated fabric 4.3.2 in-process inspection.- Inspection shall be made at any point during any phase of the processing to assure that construction of th
21、e coated fabric is as specified (see 3.3). The Goverment reserves the right to exclude from consideration for acceptance any material or service for which in-process inspection has indicated non-conformance. 4.3.3 Examination of the end item.- The end item shall be examined in accordance with the de
22、fects at the inspection levels and acceptable quality levels (AQLs) set forth in 4.3.3.1, 4.3.3.2 and 4.3.3.3, lot size for purposes of determining the sample size in accordance with ML-STD-105 shall be expressed in units of yards for the examination in 4.3.3.1, 4.3.3.2 and 4.3.3.3. The .i 4.3.3.1 Y
23、ard-by-yard examination.- The required yardage of each roll shall be inspected and visual defects classified as listed. cloth shall be so aPternated that onl of 3 rolls in the.sample, the required yardage shall be examined on the inside and that on the other 2 of 3 rolls, the required yardage shall
24、be examined on the outside. . The defects listed belaw shall be counted regardless of their proximity to each other except where 2 or more defects represent a single local condition of the cloth, in which case, only the more serious defects shall be counted. each warpwise yard or fraction thereof in
25、 which it occurs. unit for this examination shall be 1 linear yard. shall be level I of MIL-STD-105. 1.5 defects per 100 units. to be selected shall be in accordance with table III. 1 roll shall be selected from any container. The A continuous defect shall be counted as 1 defect for The inspection l
26、evel. The number of rolls from which the sample is The sample The acceptable quality level shall be Not more than An approximate equal number . - *of yards shall be examined from each- roll. 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Provided
27、by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-:. . . Total weight 3.3 . 5041 Breaking strength: Initial Warp (length) Table II 5102 ,Fi 1 ling (width) Table If
28、 5102 Aft er accelerated weathering Warp (length) Table II Fi 1 ling 5102 and 4.4.3 (width) Table II 5102 and 4.4.3 Ply adhesion Warp (length) Table II 4.4.2 Fil ling (width) Table II 4.4.2 Permeability, Table II 5640 liters per sq meter per 24 hours Accelerated weath,ering . . Table II 4.4.3 5 5 1
29、per layer 1 per layer 3 1 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL- C- 1 13 9OC ( .GL ) 4.4.3 Accelerated weathering,& The accelerated weathering test shall be performed in accordance with method 5804 of CCC-T-191 for a period 200 hours. T
30、he specimens for this test shall be 1 by 6 inches. For the breaking strength test, the specimens shall be allowed to dry after the accelerated weathering test and then be conditioned at standard conditions for 4 hours. . 5. PREPARATION FOR DELIVERY 5.1 Packaging.- Packaging shall be level A or C as
31、specified (see 6.2). 5.1.1 Levels A and C.- The cloth, put-up as specified, shall be packaged in accordance with the applicable requirements for class 5 fabrics of PPP-P-51, except that in the put-up, the fabric shall not be secured from unwinding, practicable to produce a “soft roll“. Rolling of th
32、e cloth shall be done with the minimum tension 5.2 Packing.- Packing shall be level A, B or C as specified (see 6.2). 5.2.1 Levels A, B and C.- The cloth shall be packed in accordance with the applicable requirements of PPP-P-51. be packed per container, with the rolls positioned two in width. Not m
33、ore than two rolls shall 5.3 Marking.- In addition to any special marking required by the con- tract or order, shipments shall be marked in accordance with PPP-P-51. 6. NOTES 6.1 Intended use,- The laminated coated fabric covered by this specifica- tion is intended to be used in the fabrication of d
34、ecoy targets and as an air retaining repair material for pneumatic targets. of SC 1080-93-CL-E04, Repair Equipment, Pneumatic Target, It is a component * 6.2 Ordering data.- Purchasers should exercise any desired options offered herein. Procurement documents should specify the following: a. Title, n
35、umber and date of this specification. b. C. d. Width and length of coated fabric if other than specified (see 3.5). Selection of applicable levels of packaging and packing Whether preproduction sample is required (see 3.1). (see 5.1 and 5.2). * 6.2,1 In the preparation of contracts or orders, it mus
36、t be noted that various options, choices or alternatives, as indicated in PPP-P-51, may be exercised in the preparation for delivery of cloth. * 6.3 Marginal notations.- The outside margins of this specification are marked with an asterisk to indicate where changes (additions, modifi- cations, corrections, deletions) from the previous issue were made. 9 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-10 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
