1、17 Mag 1983 SUPERSEDING MIL-C-43808( GL) 19 September 1972 MILITARY SPECIFICATION CLOTH, COATED, NYLON This spec fication is approved for use by the Natick Research and Development Laboratories, Department of the Army, and is available for use by all Departments and Agencies of the Department of Def
2、ense. 1. SCOPE 1.1 Scope. This document covers two types of coated nylon cloth, coated on only one side (see 6.1). 1.2 Classification. The coated cloth shall be of the following types as specified (see 6.2). Type I - Chloroprene coated Type II - Chlorosulphonated polyethylene coated 2. APPLICABLE DO
3、CUMENTS * 2.1 Government documents. Unless otherwise specified, the following documents of the issue in effect on date of invitation for bids or request for proposal, form a part of this document to the extent specified herein: SPECIFICATION FEDERAL PPP-P-1136 - Packaging and Packing of Coated (Plas
4、tic; Rubber) and Laminated Fabrics P Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this docunqent should be addressed to: Natick, MA Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter. US Army B
5、atick Research and Development Laboratories, 01760 by using the self-addressed Standardization Document FSC 8305 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-STANDARDS FEDERAL, FED-STD-191 - Textile Test Methods FED-STD-406 - Plastics; Methods of
6、Testing PED-STD-595 - Colors FED-STD-601 - Rubber; Sampling and Testing MILITARY MIL-STD-105 - Sampling Procedures and Tables for Inspection MIL-STD-1487 - by Attributes Glossary of Cloth bating ImperactLons (Copies of documents required by manufacturers in connection with specific acquisition funct
7、ions should be obtained from the contracting activity or as directed by the contracting officer.) 2.2 Other publicati,ons. Unless otherwise specified, the Following documents of the issue in effect on date of invitation fox bids or request for proposal, form a part of this document to the extent spe
8、cified herein. AMERICAN SOCIETY FOR TESTING AND MA!lXRIALS (.MENTS 3.1 Standard sample. The coated cloth shall match the standard sample for shade and shall be equal to or better than the standard sample with respect to all characteristics for which the standard sample is referenced (see 6.3). 2 Pro
9、vided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-43808A(GL) 3.2 Materials (see 6.5). * 3.2.1 Base cloth. The base cloth shall be woven from bright high tenacity filament nylon and shall conform to the requirements of table I when tested as specifie
10、d in 4.2.1. *TABLE I. Physical requirements of base cloth Characteristic Requirement Weight, ounces per square yard Weave Plain Color Natural Yarns per inch (minimum) Warp Filling Breaking strength, pounds (minimum) Warp Filling 38 38 115 115 e 3.2.2 Coating compound (see 4.2.1). 3.2.2.1 Type I. The
11、 coating compound for type I shall be chloroprene rubber compounded and plasticized only with phthalate or phosphate ester plasticizers. color of the coating compound shall be either natural or grey shade No. 36118 of FED-STD-595. “he 3.2 2.2 Type II. The coating compound shall be chlorosulphonated
12、polyethylene compounded and plasticized only with phthalate or phosphate ester plasticizers and pigmented to match white * 3.2.3 Dusting powder. divided mineral material 3.3 Coated cloth. color- No. 37875 of FED-STD-595. 303.1 Type I. The cloth specified in 3.2.2.1, shall nents specified in table II
13、 The dusting powder shall be whiting, talc or other finely which does not support mildew growth (see 4.2.1). shall be coated on one side only with be fully vulcanized and shall conform when tested as specified in 4.2.3. the compound to the require- 3 Provided by IHSNot for ResaleNo reproduction or n
14、etworking permitted without license from IHS-,-,-.- _ . I_ I_- MIL-C-93808A 83 - 7779706 037b259 7 = c 3.3.2 Type II. The cloth shallbe coated on one side only with the compound specified in 3.2.2.2, shall be fully vulcanized and shall conform to the requirements specified in table II when tested a%
15、 specified in 4.2.3. *TABLE II. Physical requirements of coated cloth -. . -. . Type I Type II Characteristic tfinirnum . Haximum iri5m-k .Maximum Weight, ounces per square yard Breaking strength, pounds: Initial : Warp Filling After wen aging: Warp Filling After accelerated weathering: Warp Filling
16、 Tearing strength, grams: . Waw Filling Blocking, scale rating Adhesion, pounds per 2-inch width Stiffness, centimeters: At 70“ 3- 2F a At minus 40“ -i- 2F Resistance to low temperature Resistance to oven aging Resistance to accelerated . weathering Air retention 6.6 120 100 120 100 120 100 2509 200
17、9 - 10.0 - - - 11 - 21 - - 41 4 3.55 - u- (3) 13.0 20.0 - Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-*TABLE II. Physical requirements of coated cloth (cont d) mDe I TvDe II dI - dL Characteristic Minimum Maximum Minimum Maximum Flame resistance:
18、 After flame, seconds Warp Filling Char length, inches Warp Filling Adherability - I/ There shall be no evidence of cracking, flaking or separation of the coating on the specimen. The specimen shall not become stiff or brittle or soft or tacky when compared to unexposed specimens selected from the s
19、ame sample unit. - 2/ - 3/ The coated cloth shall show no cracking or crazing when folded sharply on it- self; and when inspected in the folded position, the specimen shall show no signs of blooming or chalking. In addition, after weathering the color of the coating shall not be changed. No signs of
20、 air leakage. Shall show no slippage. 4/ - 5/ specified in the contract or purchase order (see 6.2). trimmed from the coated cloth. 3.4 Width. The minimum width of the coated cloth, without selvages, shall be as All selvages shall be * 3.5 Length and put-up. The coated cloth shall be put up in rolls
21、 as specified in PPP-P-1136 in the lengths specified below for the applicable type. roll shall contain more than three pieces and no individual piece shall be less than 6 yards in.length. seam. No individual The ends of the pieces shall be overlapped and not joined by a 5Pe Linear yards Minimum Maxi
22、mum I II 110 135 250 275 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-4380A 83 m 797770b 039625b 2 m I * 3.6 Color, The coated side of the cloth shall be natural or match the applicable - color number of FED-STD-595 (see 3.2.2), * 3.6.1 Ma
23、tching. The color and shade of the finished coated side of the cloth shall match thestandard sample (see 6.3) under artificial daylight having a calor temperature of 7000 3. 500 kelvins and shall be a good approximation to the standard sample under incandezcent lamplight at 2850 + 1O kelvins. minera
24、l powder shall be wiped with a wet cloyh and allowed to dry before color matching . Specimeae dusted with * 3.7 - Odor. The coated cloth shall be free from any objectionable odor. Characteristic odor of coating is not considered objectionable. 3.8 Workmanship. The finished coated cloth shall be clea
25、n, evenly coated, shall have no strike through of the coating to the back of the cloth and shall conform to the quality of product established by this document. shall not exceed the applicable acceptable quality levels. The occurrence of defects 4. QUALIm ASSURANCE PROVISIONS 4.1 Responsibility for
26、inspection, Unless otherwise Specified in the contract or purchase order, the contractor is responsible far 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 ather facilities suit
27、able for the performance o the inspection requirements specified herein, unless disapproved by the Government. inspections set forth in the document where such inspections are deemed necessary to assure supplies and services conform to prescribed requirements. The Government reserves the right to pe
28、rform any OF the 4.1.1 .Certificate of compliance, Where certificates of compliance are submitted, the Government reserves the right to check test such items to determine the validity of the certification, * 4.2 Quality conformance inspection, Unless otherwise specified, sampling for inspection shal
29、l be performed in accordance with MIL-STD-105. J( 4.2.1 Component and aterial inspection. In accordance with 4.1, components and materials shall be inspected in accordance with all the requirements of referenced documents unless otherwise excluded, amended, modified, or qualified in this documene or
30、 applicable purchase documents. for the characteristics specified in table III. individual values used in expressing the final results. base cloth shall be 1. yard full width. 1 yard and the sample size shall be as specified below. unacceptable if one or more sample units fail to meet any requiremen
31、t specified. In addition, testing shall be performed Ail test reports shall contain the The sample unit for the The lot size shall be expressed in units of The lot shall be 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-O Lot size (yards) 800 or l
32、ess 801 up to and including 22,000 22,001 and over MIL-C-43808A7 Sample size (number of sample units) 2 3 5 TABLE III. Component tests Requirement FED-STD-191 Characteristic reference test method Base cloth: Material identification Weight, oz./sq. yd. Weave Color Yarns per inch 3.2.1 3.2.1 3.2.1 3.2
33、.1 3.201 11 5071 Visual Visual 5050 Breaking strength 3.2.1 5100 Coating compound DUsting powder 3.2.2 3.2.3 l/ Unless otherwise specified, a certificate of compliance shall be submitted and will be acceptable for the stated requirement. - 2/ A certificate of compliance shall be furnished with each
34、shipment or lot specifying the following: (a) (b) A certificate of Compliance shall be furnished with each shipment or lot specifying that the dusting powder is a mineral material that does not support mildew growtIi Type I coating is compounded as specified in 3.2.2.1. Type II coating is compounded
35、 as specified in 3.2.2.2. - i/ 4.2.2 End item examination. * 4.2.2.1 Yard-by-yard examination. “he coated cloth shall be examined for the defects listed below. examined on the coated side only. inspection for pinholes and thinly coated areas. Tne through-lighting inspection shall be performed in acc
36、ordance with MIL-STD-1487. The defects found shall be counted regardless of their proximity to each other, except where two or more defects represent a single local condition of the cloth, in which case only the more serious defect shall be counted. A continuous defect shall be counted as one defect
37、 The required yardage of each roll in the sample shall be The same yardage shall be given a through-light 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- for each warpwise yard or fraction thereof in which it occurs. be expressed in units of yards
38、, inspection level shall be II and the acceptable quality level (AQL), expressed in terms of defects per hundred units, shall be 4.0 for major defects and 10.0 for total (major and minor combined) defects. The nwnber of rolla from which the sample is to be selected shall be in accordance with table
39、IV. An approximately equal number of yards shall be examined in each roll sampled. The lot size shall The sample unit shall be 1 linear yard. The - - Classification Mjor Minor . . .,. . De ect Any cut, hole, tear, scratch, or abrasion mark that results in baring the base cloth in baring the base clo
40、th X Any pinhole X Any uncoated area X Any pit, blister, tunnel, or delamination of coating X Any surface scratch or abrasion mark that does not result Any lump or heavily coated area Any crease or wrinkle resulting in doubling or adhesion of Uneven coating, thin area where coating is missing or Any
41、 light area or window (resulting from improper distribution Any foreign matter, which on removal leaves an uncoated or Any foreign matter resulting in unsightly appearance Edges not straight and uniform Edges heavily beaded, cannot be rolled in uniform layers Cloth edges rolled, curled, folded, doub
42、led, scalloped or Any spot, stain, or streak more than 1 inch in combined surf aces that cannot be corrected by manual pressure noticeably thinner x X of pigment) poorly coated area X wavy precluding a flat lay of the cloth direction l/ X X Width less than minimum. specified Any tackiness (coating w
43、ill adhere and not unroll readily) x Any objectionable odor - 2/ Color not as specified, off shade, uneven, mottled, or spotted Not clean X X X X a X X X X X X - i/ Clearly visible at normal inspection distance (approximately 3 feet) . 2/ Odors of chemicals commonly used in coating compounds shall n
44、ot be regarded as objectionable. 8 :A . .- Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-43808A( GL) TABLE IV. Sample size and acceptance criteria Maximum number of vptable Lot size Sample size defects ac (yards 1 (rolls) in sample - Up to 12
45、00 inclusive i/ 3 1201 up to and includTng 3200 35,001 up to and including 150,000 5 3201 up to and including 10,000 8 10,001 up to and including 35,000 13 20 150,001 and over 32 - l/ If a lot contains fewer than three rolls, each roll in the lot shall be examined . - 2/ Applicable to length examina
46、tion only (see 4.2.2.2.1). 4.2.2.2 Length examination. * 4.2.2.2.1 Examination for length in individual roll. Each roll selected for yard-by-yard examination shall be examined for the defects listed below. total number of defects in the sample rolls exceed the maximum number specified in table IV, t
47、he lot shall be rejected. If the Any roll with a total length less than the minimum or more than the Any roll containing more than three pieces Any piece in roll less than 6 yards in length Ends of pieces in roll not overlapped, but joined by a seam Any roll with a total length more than 2 yards les
48、s than that marked maximum Specified on ticket 4.2.2.2.2 Total yardage in sample. The rolls examined shall be those selected for exainination of individual rolls as specified in 4.2.2.2.1. unacceptable if the total of the actual gross lengths of the rolls in the sample is less than the total of the
49、gross lengths marked on the roll tickets. The lot shall be * 4.2.3 End item testing. The coated cloth shall be tested for the characteristics listed in table V. applicable and as listed in table V, shall be followed. fied in section 3 apply to the average of determinations made on a sample unit for test purposes as specified in the applicable test method. 5 continuous yards full width of the coated
