1、c - -. 1 MIL-C-LI382LIA 83 979990b 037b270 2 -F _ 4-37-17 - MIL-C-43824A SUPERSEDING MIL-C-43824 31 October 1972 i7 March 1982 MILITARY SPECIFICATION CLOTH, SYNTHETIC FUR, KNITTED This specification is approved for use by all Departments and Agencies of the Department of Defense. * 1.1 Scope. This s
2、pecification covers the requirements for synthetic fur material of knitted pile cloth. guard hair and polyester fiber base fur interlaced into knitted polyester or polypropylene backing yarn. The pile portion of the cloth consists of modacrylic fiber 2. APPLICABLE DOCUMENTS * 2.1 Issues of documents
3、. 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: SPECIFICATIONS FEDERAL UU-P-26 8 - Paper, Kraft, Untreated, Wrapping. PPP-B-6 36 - Boxes, Shipping, Fiberboard. PPP-P-1133 - Pac
4、kaging and Packing of Synthetic Fiber Fabrics. STANDARDS FEDERAL FED-STD-19 1 - Textile Test Methods. I I Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: US Army Natick Research and Development
5、Laboratories, Natick, MA 01760 by using the self-addressed Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this docu- ment or by letter. L 1 PSC 8305 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-43824A 83
6、 W 7779706 0376293 4 MIL-C-43824A I MILITARY MIL-STD-105 - Sampling Procedures and Tables for Inspection MIL-STD-129 - Marking for Shipment and Storage. MIL-STD-1491 - Glossary of Knitting Imperfections. by Attributes. PUBLICATIONS Rules and Regulations Under the Textile Fiber. Products Identificati
7、on Act (Copies may be obtained without charge from the Federal Trade COmmission, Washington, DC 20580.) Rules and Regulations Under the Flammable Fabrics Act (Copies may be obtained from the Federal Trade Commissioner, Washington, DC 20580.) (Copies of specifications and standards required by contra
8、ctors in connection with specific procurement functions should be obtained from the procuring activity or as directed by the contracting officer.) 2.2 Other publications. The following documents form a part of this specifi- cation to the extent specified herein. issue in effect on date of invitation
9、 for bids or request: for proposal shall apply: Unless a specific issue is identified, the National Motor Freight Traffic Association, Inc., Agent National Motor Freight Classification (Application for copies should be addressed to the American Trucking Associations, Inc., Tariff Order Section, 1616
10、 P Street, N.Wb,.Washington, DC 20036.) Uniform Classification Committee, Agent Uniform Freight Classification (Application for copies should be addressed to the Uniform Classification Committee, Room 1106, 222 South Riverside Plaza, Chicago, IL 60606.) 2 Provided by IHSNot for ResaleNo reproduction
11、 or networking permitted without license from IHS-,-,-MIL-C-43824A 3. REQUIREMENTS 3.1 First article. When specified (see 6.2), the supplier shall furnish a sample for first article inspection and approval (see 4.3 and 6.3). 3.2 Standard sample. The cloth shall match the standard sample for shade an
12、d shall be equal to or better than the standard sample with respect to all charac- teristics for which the standard sample is referenced (see 6.4). 3.3 Material. The fibers shall be as specified below. The use of waste or reprocessed fibers is prohibited. The material shall meet the Flammable Fabric
13、s Act requirements. * 3.3.1 Backing yarn. The yarn for the knitted backing shall be made from multi- filament or spun polyester, or fabricated polypropylene fiber of sufficient quality to meet the requirements of this specification. 3.3.2 Modacrylic. The modacrylic fibers used as the guar.d hairs sh
14、all be 40 denier, 4-1/2 inch staple fiber with a specific gravity of 1.34 to 1.38 g/cc and a melting point of not less than 400F. 3.3.3 Polyester. The polyester fibers used as the base fur shall be 6 denier, 2 inch staple fiber with a specific gravity of 1.20 to 1.24 g/cc and a melting point of not
15、less than 540F. 3.3.4 Guard hair and base fur. The fibers used for the guard hair and the base fur shall be well blended and formed into a smooth even sliver. a blend of 60 percent (+ 3 percent) modacrylic and 40 percent (+ - 3 percent) polyester fibers by weizht. The sliver shall be 3.3.5 Backing c
16、ompound. The knitted backing shall be coated with a neoprene or butadine latex-acrylonitrile mixture suitably compounded to form a flexible backing (see 6.5). * 3.4 Physical requirements. The finished cloth shall conform to the properties specified in table I when tested as specified in 4.7. TABLE I
17、. Physical requirements Characteristic Requirements (minimum) Weight, total, OZ. per sq. yd. Weight, pile, OZ. per sq. yd. Wales, per inch Courses, per inch 35.0 18.5 11 .o 20.0 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- - - - MIL-C-4382qA 83
18、 7777906 037b293 MIL-C-43824A 3.4.1 Resistance to blocking. The backing material shall show no signs of blocking and shall have a scale rating of 1 when tested as specified in 4.7. 3.4.2 Flexibility. The backing material shall not crack 0.r break when tested as specified in 4.7. Jr 3.5 Color. The co
19、lor shall be natural white and shall match the standard eampe. 3.5.1 Matching. The color of the finished cloth shall match the standard sample under natural (north sky) daylight or artificial daylight having a color temperature of 7500 Kelvin and shall be a good approximation to the standard sample
20、under incandescent lamplight at 2800 Kelvin. 3.6 Finish. standard sample. The cloth and pile characteristics shall be equal to those of the 3.7 Width. The minimum relaxed width of the finished cloth shall be 54 - + 1/2 inches. 3.8 Length and put-up. The cloth shall be furnished full width in rolls 1
21、5 4- 1-1/2 vards in length. Not more than two pieceS.of cloth shall be in each roll .- and-no piece shall be less than 3 yards long. to form a continuous 15 yard length roll. The two pieces shall be sewn together 3.9 Fiber identification. Each roll shall be 1abeled;ticketed or invoiced for fiber con
22、tent in accordance with the Textile Fiber Products Identification Act. 3.10 Workmanship. The finished cloth shall conform to the quality established by this specification. acceptable quality levels. The occurrence of defects shall not exceed the applicable 4. QUALITY ASSURANCE PROVISIONS 4.1 Respons
23、ibility for inspection. Unless otherwise.specified in the contract or purchase order, the supplier is responsible for the performance of all inspection requirements as specified herein. order, the supplier may use his own or any other facilities suitable for the performance of the inspection require
24、ments 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. Except as otherwise specif
25、ied in the contract or 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-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 cert
26、ification. 4 12 Classification of inspection. “he inspection requirements specified herein are classified as follows: a. b. First article inspection (see 403). Quality conformance inspection (see 4.4). 4.3 First article. When specified (see 6.2), the preproduction sample submitted in accordance with
27、 301, shall be inspected as specified in 4.4.2.3 and 4.6. 4.4 Quality conformance inspection. 4.4.1 Inspection. Sampling for inspection shall be performed in accordance with. MIL-STD-105, except where otherwise indicated hereinafter. 4.4.2 Component and material inspection. In accordance with 4.1 ab
28、ove, components and materials shall be 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. In addition, the supplier shall furnish a certi
29、ficate of compliance for the characteristics listed in table II. *TABLE II. Component tests Characteristic Requirement reference Backing, polyester: New fiber 3.3 Identification 3.3.1 Identification 3.3.2 and 3.3.3 Specific gravity 3.3.2 and 3.3.3 Melting point 3.3.2 and 3.3.3 Pile, modacrylic and p
30、olyester: New fiber 303 Backing compound neoprene on nitrile type 3.3.5 4.4.2.1 Examination of the end item. Examination of the end item shall be in accordance with 4.4.2.2 through 4.5. 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-43824A 4
31、.4.2.2 Yard-by-yard examination. The required yardage shall be examined for defects as listed below. holes, tears and creases. The face side shall be examined for the remaining defects listed. Defects shall be defined in accordance with MIL-STD-1491. The defects found shall be counted regardless of
32、their proximity to each other. The sample unit shall be 1 linear yard, and the lot size shall be expressed in units of one yard each. The acceptable quality level (AQL) shall be 2.5 defects per one hundred units and the inspection level shall be level I. An equal number of yards (approx.) shall be e
33、xamined from each roll selected in accordance with table III from among separate containers in the lot. The back side of the material shall be examined for cuts, Individual defects Cut, hole, or tear. Any pile matted or glazed. Any bare spot (i.e. pile missing). Local area with pile of abnormal heig
34、ht or Any imbedded crease or curled edge not Spot, stain or streak. Color does not match standard sample. density. removable by hand pressure. 4.4.2.3 Overall examination. Each defect listed shall be counted not more than once in each roll examined. the acceptable number of defects shall be as shown
35、 in table III. the material shall be examined for defects applicable to the backing compound and the face side shall be examined for the remaining defects listed. The sample unit shall be one roll. The sample size and The back side of Overall defects Pile character or shade not matching that of Appr
36、eciable shedding of loose fiber. Color contrast not approximating that of the Width not as specified. Backing compound missing or not uniformly Uncleanness. Objectionable odor. the standard sample. standard sample. applied. 6 Provided by IHSNot for ResaleNo reproduction or networking permitted witho
37、ut license from IHS-,-,-MIL-C-43824A 83 W 7977706 037b27b 3 MIL-C-43824A TABLE III. Sample size Maximum acceptable Lot size (yards) Sample size (rolls) number of defects O 1,200 or less 5 O 1,201 up to and including 3,200 8 O 3,201 up to and including 10,000 13 1 10,001 and over 20 2 4.4.2.4 4.4.2.4
38、.1 Individual rolls. During the yard-by-yard examination each roll shall be examined for length. or more than 1-1/2 yards below the length marked on the ticket, any piece less than 3 yards long, more than 2 pieces in a roll, pieces not sewn together to form a . continuous length, shall be considered
39、 defects. defects shall be in accordance with table III. All length determinations shall be based on the relaxed condition of the cloth. shall be checked, and corrected as indicated, by lengths determined on cloth relaxed or one hour while loosely placed on a smooth table top or similar surface, and
40、 then measured without re-rolling or tensioning. In case of dispute, measurement so made shall govern. Examination for length and put-up. Any roll found to be less than the minimum length specified The maximum acceptabIe number of Measuring devices and conditions used 4.4.2.4.2 Total yardage in samp
41、le. The lot shall be unacceptable if the total of the length of rolls in the sample is less than the total of the lengths marked on (I) the tickets. 4.5 Examination for compliance with the Textile Fiber Products Identification - Act. for identification of fiber content. The lot shall be unacceptable
42、 if two or more rolls in the sample are not labeled or ticketed in accordance 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 4.6 Examfnation of preparation for delivery requirements. A
43、n examination shall be made to determine that packaging, packing and marking comply with the section 5 requirements. Defects shall be scored in accordance with the list below. The sample unit shall be one shipping container fully prepared for delivery except that it: need not be closed. Defects of c
44、losure listed below shall be examined on shipping containers fully prepared for delivery. The lot size shall be the number of shipping containers in the end item inspection lot. The inspection level shall be S-2 and the AQL shall be 2.5 defects per hundred units. 7 Provided by IHSNot for ResaleNo re
45、production or networking permitted without license from IHS-,-,-_I_ I_ - -. _ MIL-C-4382LlA 83 9799906 0396297 5 MIL-C-43824A Examine Defect Marking (exterior and Omitted; incorrect; illegible; of improper size, location, sequence, or method of application. interior) Mate ri als Any component missin
46、g. Any component damaged, affecting serviceability or not as specified. Workmanship Inadequate application of components, such as: incomplete closure of container flaps, improper taping, loose strapping or inadequate stapling. Bulged or distorted container. Number of rolls per container is more or l
47、ess than Conte nt required . 4.7 Testing of the end item. The methods of testing specified in FED-STD-191, wherever applicable and as listed in table IV shallbe followed. otherwise indicated, the physical values specified in section 3 apply to the average of the determinations made on a sample unit
48、for test purposes as specified in the applicable test methods. All test reports shall contain the individual values as well as the final results. cloth. table. requirement specified. Lot size (yards) 800 or less 2 801 up to and including 22,000 3 22,001 and over 5 Except as The sample unit shall be
49、1-1/2 yards full width of the The sample size (number of sample units) shall be as shown in the following The lot shall be unacceptable if one or more sample units fail to meet any Sample size (units) *TABLE IV. Test methods Req ui r eme nt Test Characteristic paragraph method Flammability 3.3 i/ Blend percentage 3.3.4 i/ - Weight Total 3.4 4.7.1 Pile 3.4 4.7.1 Wales per inch 3.4 5070 Courses per in
