1、MIL-C-L04C 83 777770b 0375744 b W MILITARY SPECIFICATION CLOTH, SHEETING, COTTON, TRE 25 September 1980 SUPERSEDING MIL-C-8104B(ASG) 20 November 1967 TED This specification is approved for use by the Naval Air Systems Command, Depart- ment of the Navy, and is available for use by all Departments and
2、 Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification covers the requirements for one type of treated cotton cloth for use in aircraft. 2. APPLICABLE DOCUMENTS 2.1 Issues of documents. Thefollowing documents, of the issue in effect on date of invitation for .bids or request
3、for proposal, form a part of this specification to the extent specified herein, SPECIFICATIONS FEDERAL QQ-A-225/2 -Aluminum Alloy Bar, Rod, and Wire; Rolled Drawn QQ-B-637 -Brass, Naval; Rod, Wire, Shapes, Forgings, and Flat Products with Finished Edges (Bars, Flat Wire, and Strip) Synthetic Fiber B
4、lend Fabrics (Excluding Duck Fabrics). or Cold Finished, 3003. PPP-P-1134 -Packaging and Packing of Cotton and Cotton- A Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: Engineering Specification
5、s and Standards Department (Code 93), Naval Air Engineering Center, Lakehurst, NJ 08733, by using the self-addressed Standardization Document Improvement Proposal (DD Form 1426), appearing at the end of this document or by letter. i FSC 8305 TW mSE3En rnElafim3 ,. 9 M Provided by IHSNot for ResaleNo
6、 reproduction or networking permitted without license from IHS-,-,- MIL-C-8LOiC 83 W 7477706 0375945 8 = MIL-C-8104C(AS) STANDARDS FEDERAL FED- STD- 4 FED-STD-191 -Textile Test Methods. -Glossary of Fabric Imper-2ctions. MILITARY MIL-STD-105 -Sampling Procedures and Tables for Inspection by Attribut
7、es. (Copies of specifications, standards, drawings and publications required by suppliers in connection with specific acquisition functions should be obtained from the acquiring activity or as directed by the contracting officer. ) 2.2 Other publications. The following document forms a part of this
8、specification to the extent specified herein. Unless otherwise indicated, the issue in effect on date of invitation for bids or request for proposal shall apply. RULES AND REGULATIONS UNDER THE TEXTILE FIBER PRODUCTS IDENTIFICATION ACT (Application for copies should be addressed to the Federal Trade
9、 Commission, Washington, DC 20580.) (Technical society and technical association specifications and standards are generally available for reference from libraries. They are also dis- tributed among technical groups and using Federal agencies.) 3. REQUIREMENTS 3.1 Standard sample. The dyed finished c
10、loth shall match the standard sample for shade and shallbe equal to or better than the standard sample with respect to all characteristics for which the standard sample is refer- enced (see 6.4). 3.2 First article. When specified (see 6.2), the contractor shall furnish one sample unit for first arti
11、cle inspection and approval (see 4.3 and 6.3). 3.3 Material. The warp and filling shall be singles yarn spun from cleaned, carded and drawn cotton. 3.4 Cloth properties. The finished cloth shall conform to the require- ments specified in table I when tested as specified in 4.6. 3.5 Dimensions. 3.5.1
12、 Width. The width and width tolerance of the finished cloth shall be as specified by the acquiring activity (see 6.2). 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-LOYC 3 7979906 03759Y6 T 3.5.2 Length of roll. Rolls shall contain 100 to 2
13、50 linear yards, with no more than 5 pieces in each roll. 3.6 Color. The color of the finished cloth shall be as specified by the acquiring activity (see 6.2) and shall be obtained through the use of vat dyes. 3.6.1 Colorfastness. When tested as specified in 4.6, the finished cloth shall show colorf
14、astness to light, laundering, dry crocking, wet crocking and cold water equal to or better than the standard sample. When no standard sample for colorfastness is available, the finished cloth shall show *good“ colorfastness to light, laundering, dry crocking, wet crocking and cold water. . 3.6.2 Col
15、or matching. The color shall match the standard sample when examined in accordance with 4.6.1. - 3.7 Finish. 3.7.1 .Processing of the cloth. Dyestuffs, detergents, and other chemi- cals or finishing agents used in the manufacture of the cloth shall not cause deterioration under normal warehouse stor
16、age conditions, nor cause dermatitis on prolonged skin contact. 3.7.2 Non-fibrous material. The total sizing, finishing, and other non-fibrous material content of the cloth, prior to the application of the fire retardant treatment, shall not exceed 2.0 percent when tested as speci- fied in table II.
17、 3.7.3 Corrosion. The finished cloth shall be noncorrosive when tested as specified in 4.6.2, 3.8 Fiber identification. Each roll of cloth shall be labeled, ticketed or invoiced for fiber content in accordance with the Textile Fiber Products Identification Act. 3.9 Workmanship. The finished cloth sh
18、all conform to the quality and grade of product established by this specification. The demerit points per 100 square yards, when calculated as specified in section 4, shall not exceed the established maximum point value. 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for inspection. Unless other
19、wise specified in the contract, the contractor is responsible for the performance of all in- spection requirements as specified herein. Except as otherwise specified in the contract, the contractor may use his own or any other facilities suit- able for the performance of the inspection requirements
20、specified 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. 3 Provided by IHSNot for ResaleNo
21、 reproduction or networking permitted without license from IHS-,-,-MIL-C-L04C 3 7779706 03757V7 L 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 Classific
22、ation of inspection. The inspection requirements specified herein are classified as follows: 1. First article inspection (see 4.3). 2. Quality conformance inspection (see 4.4). 4.2.1 Inspection conditions. Unless otherwise specified, all testing shall be performed in accordance with the test conditi
23、ons specified in FED-SD-191. 4.3 First article inspection. When required (see 6.2) the first article sample submitted in accordance with 3.2 shall be visually inspected for appearance, color and finish, and shall be tested as specified in 4.6. 4.4 Quality conformance inspection. The quality conforma
24、nce inspection shall consist of the tests specified in table II and the examinations in 4.4.1 through 4.5. 4.4.1 Examination of the end item. Examination of the end item shall be in accordance with the provisions of MIL-STD-105 and 4.4.1.1 through 4.4.4. 4.4.1.1 Yard-by-yard examination. Thirty yard
25、s from each roll in the sample shall be examined on the face side. The sample shall consist af 25 rolls taken from 25 containers. The cloth shall be run over a bank of lights having sufficient intensity to show defects at a normal inspection distance of 3 feet Each sample unit shall be examined for
26、the defects listed and defined in section I of PED-STD-4. All defects listed and defined in section I of FED-STD-4, which are clearly noticeable at normal inspection distance, shall be scored and assigned demerit points as listed in 4.4.1.1.1. No linear yard shall be penalized more than 4 points. Th
27、e lot shall be unacceptable if the points per 100 square yards exceed 20.0 points. Point computation shall be as follows: Points per 100 - square yards Total points scored in sample X 3600 Contracted width of cloth in inches X 750 - 4.4.1.1.1 Demerit points. Demerit points shall be assigned as follo
28、ws: For defects 3 inches or less in any dimension - one point For defects exceeding 3 inches, but not exceeding - two points For defects exceeding 6 inches, but not exceeding - three points For defects exceeding 9 inches in any dimension - four points 6 inches in any dimension 9 inches in any dimens
29、ion 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-LO4C 3 7779906 0375748 3 W 1 MIL-C-8104C (AS) The following defects, when present, shall be scored four points for each yard in which they occur: Baggy, ridgy or wavy cloth. Objectionable od
30、or. Width not as specified. Overall uncleanness. Pronounced mottled or streaky color, or color contrasts. 4.4.2 Examination for length. 4.4.2.1 Individual rolls. During the yard-by-yard examination, each roll in the sample shall be examined for length. Any length found to be less than the minimum sp
31、ecified or more than two yards below the length marked on the ticket shall be considered a defect with respect to length. The lot shall be unacceptable if two or more rolls in the sample are defective with respect to length. 4.4.2.2 Total yardage in sample. The lot shall be unacceptable if the total
32、 of the actual lengths of rolls in the sample is less than the total of lengths marked on the tickets. 4.4.3 Examination for shade. During the yard-by-yard examination, each roll in the sample shall be examined for shade. Any portion of the sample off shade, shaded side to side, side to center or en
33、d to end shall be cause for rejection of the entire lot represented by the sample. 4.4.4 Examination for compliance with the Rules and Regulations Under the Textile Fiber Products Identification Act. During the yard-by-yard examination, each roll in the sample shall be examined for fiber identi- fic
34、ation. The lot shall. be unacceptable if two or more rolls are not labeled or ticketed in accordance with the Rules and Regulations Under the Textile Fiber Products Identification Act. 4.5 Examination of packaging requirements. An examination shall be made in accordance with the provisions of PPP-P-
35、1134 to determine that packaging, packing and marking comply with section 5 requirements of this speci- f ication. 4.6 Testing of the end item. The methods of testing specified in FED-STD-191, whenever applicable, and as listed in table II shall be fol- lowed. The physical and chemical values specif
36、ied in section 3 apply to the average of the determinations made on a sample unit for test purposes as specified in the applicable test method. All test reports shall contain the individual values utilized in expressing the final result. The sample unit for testing shall be 4 continuous yards (full
37、width) of the finished cloth and 1/2 yard (full width) of the untreated cloth. The lot size shall be expressed in units of one yard eah. The lot shall be unacceptable if one or more units fail to meet any specifed test requirement. The sample size shall be in accordance with the following: Provided
38、by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-_- MIL-C-BLOLIC 3 m 777770b 0375797 5 Lot size Sample size (yards) (units ) 800 or less 2 801 up to and in- 3 22,001 and over 5 cluding 22,000 4.6.1 Color matching. The color shall match the standard sample unde
39、r artificial daylight having a color temperature of 7500O Kelvin and shall be a good approximation to the standard sample under incandescent lamplight at 2800O Kelvin. 4.6.2 Corrosion. Polished rods, 112 inch diameter by 5 inches long, of aluminum alloy conforming to QQ-A-22512 and brass conforming
40、to QQ-B-637 shall be wound spirally with a 112 by 8 inch strip of the finished cloth. The rod and cloth shall be placed in a humidity chamber at 52OC k 2.7OC (125O k 5OF) and a relative humidity of 97 to 100 percent for 5 days. The cloth shall then be removed and the rods examined. The test shall be
41、 re- peated on specimens of the cloth which have been thoroughly rinsed in dis- tilled water at room temperature and dried. Corrosion, but not discoloration, of the metals shall be cause for rejection. One specimen of the finished cloth shall be prepared for each of the above specified metal rads. I
42、n the event of doubtful test results, a retest shall be made. 4.6.3 Breaking strength and elongation. 4.6.3.1 Preparation of specimens. Ten strips, 12 inches or over in length and not less than 4 inches in width, shall.be cut from each sample in such manner that 5 of the 12 inch strips will be in th
43、e warp direction and 5 strips in the filling direction of the cloth. Each of the 12 inch strips shall be cut in half to form 2 specimens, each 4 by 6 inches. One of the 6 inch specimens shall be used for the oven aging test and the other shall be tested in the unaged (as received) condition. Thus, t
44、he as received and aged specimens shall represent the same warp and filing threads. 4.6.3.2 Method. 4.6.3.2.1 As received condition. Five specimens each from the warp and filling directions shall be tested for breaking strength and elongation in accordance with method 5100 of FED-STD-191. 4.6.3.2.2
45、Oven aging. The specimens to $e agedoshall beosuspended in an oven at a temperature range of 99OC to 104 C (210 F to 220 F) for 8 hours. The specimens shall be suspended in such a manner that each side of each specimen is exposed to the temperature. After removal from the oven, the samples shall. be
46、 conditioned for at least 4 hours at standard conditions (see 4.2.1) and then tested for breaking strength in accordance with method 5100 of FED-STD-191. The average breaking strength of the aged specimens shall be compared with the average breaking strength of the as received specimens. aged specim
47、ens and the as received specimens, computed as a percentage of the as received strength, shall not exceed the limits specified in table I. The difference between the average breaking strength of the oven 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-
48、,-,-5. PACKAGING 5.1 Packaging. Packaging shall be level A or C, as specified (see 6.2). 5.1.1 Levels A and C. The cloth, put up in rolls (see 3.5.2), shall 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)
49、. 5.2.1 Levels A, B and C. The cloth shall be packed in accordance with the applicable requirements of PPP-P-1134. 5.3 Marking. In addition to any special marking required by the contract or order, shipments shall be marked in accordance with the requirements of PPP-P-1134. 6, NOTES 6.1 Intended use. The cloth of this specification is intended for use as sheeting to cover aircraft insulation an soundproofing blankets. The use o
