ARMY MIL-C-12800 A-1973 CLOTH ACRYLIC (FOR CARTRIDGE BAGS)《布 腈纶(用于盒袋)》.pdf

1、MIL-C-LZBOOA 83 m 9979706 0378306 O m TIIL-C-12800A (MU) 6. February 73 - ,. - SUPERSEDING MIL-C-12800 (ORD) 9 June 1953 MILITARY SPECIFICATION CLOTH, ACRYLIC (FOR CARTRIDGE BAGS) 1. SCOPE 1.1 This specification covers acrylic cloth for use in the manufacture of cartridge bags for ammunition (see 6.

2、3). 1.2 Classification.-The acrylic cloth shall be classified as follows: Class I - 1.2 ounces of acrylic cloth per square yard. Class II- 2.5 ounces of acrylic cloth per square yard. 2 . APPLICABLE DOCUMENTS r 2.1 The following documents of the issue in effect on date of invitation for bicis or req

3、uest for proposal, form a part of this specification to the extent specified herein. SPECIFICATIONS FEDERAL PPP-P-1134 - Packaging and Packing of Cotton and Cotton - Synthetic Fiber Blend Fabrics (Excluding Duck Fabrics) STANDARDS FEDERAL FED-STD-4 - Glossary of Fabric Imperfections FED-STD191 - Tex

4、tile, Test Method r- MILITARY MIL-STD-105 - Sampling Procedures and Tables for Inspection by Attributes ABC-STD-105) f?- FSC: 8305 1 -, Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-12OOA 3 W 9999906 0378307 2 W MIL-C-12800A (MU) MIL-STD-109

5、- Quality Assurance Terms and Definitions (Copies of specifications, standards, drawings and publications required by. suppliers in connection with specific procurement functions should be obtained from the procuring activity or as directed by the contracting officer.) part of this specification to

6、the extent specified herein. Unless otherwise indicated, the issue in effect on date of invitation for bids or requests for proposal shall apply, 2.2 Other publications.-The following documents form a AMERICAN SOCIETY FOR TESTIEIG AND MATERIALS ASTM - D123 - Textile Materials (Application for copies

7、 should be addressed to the American Society for Testing and Materials, 1916 Race Street, Philadelphia, Penn, 19103). 3 . REQUIREMENTS 3.1 Material - Class I and Class II acrylic cloth shall be woven with acrylic yarns which shall contain 85% polyacrylonitrile, minimum. (see 6.4) 3.2 Detailed requir

8、ements 3.2.1 Width.-As specified by the contract or purchase Weave.-Unless otherwise specified, the weave shall Weight,-When tested as specified in 4.4.4 shall be: a. Class 11.2 + 0.2 oz/sq. yd. b, Breaking strength (pounds per inch) when tested a. Class I warp 30 min. b. Class II warp 40 min. order

9、, when tested as specified in 4.4.2. be a plain single weave when tested as specified in 4.4.3. 3.2.2 3.2.3 Class II 2.5+ - 0.2 oz/sq. yd, 3.2.4 as specified in 4.4.5 shall be: filling 30 min. filling 40 min. 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from

10、 IHS-,-,-MIL-C-LZOOA 3 7997706 0378308 LI MIL-C-12800A (MU) 3.2.5 pH of water extract (Class I and Class II).-The pH shall be 7.0 - t 2.0 when tested as specified in 4.4.6. 3.2.6 Acidity or alkalinity (Class I and Class II).- Alkalinity determined as sodium carbonate shall be 0.1 percent max., when

11、tested as specified in 4.4.7. Acidity determined as acetic acid shall be 0.1 percent Max., when tested as specified in 4.4.7. 3.2.7 Thread count (number of threads per inch) when tested as specified in 4.4.8 shall be: a. Class I warp 70 min. b. Class II warp 50 min. filling 65 min. filling 50 min. 3

12、.3 Workmanship.-The finished cloth shall be boiled off or scoured to remove sizing materials. The finished cloth” shall be fabricated in a thorough, workmanlike manner. It shall be free of weighting materials, surface defects, dirt, oil, grease and other foreign matter. The finished cloth shall be u

13、niformly and closely woven and free of visible imperfections. The finished cloth shall not be bleached. 4 . QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for inspection.-Unless otherwise specified in the contract or purchase order, the supplier is responsible for the performance of all inspection

14、requirements as specified herein. Except as otherwise specified in the contract or order the supplier may use his own or any other facilities suitable for the performance of the inspection requirements specified herein, unless disapproved by the Government. The Government reserves the right to perfo

15、rm any of the inspections set forth in the specification where such inspections are deemed necessary to assure supplies and services conform to prescribed requirements. Reference shall be made to MIL-STD-109 to define terms use herein. 4.1.1 Submission of product.-At the time each completed lot of i

16、tems deliverable under the contract is submitted to the Government for cceptance, the contractor shall supply the following infomation accortpariied by a certificate v:T:ich attest that the inforviation provided is correct and applicable to the product being submitted: a. A statement that the lot co

17、mplies with all of the quality assurance provisions specified in this specification. 3 t Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-L,2OOA 83 97979Ob 0378309 b MIL-C-12800A (MU) b. C. Certificates of analysis on all materials used Specific

18、ation number and date, together with identification and date of changes thereto. directly by the contractor when such material is controlled by Government specifications shall be made available upon request by the Contracting Officer. d. Quantity of product in the lot. e, Date submitted. The certifi

19、cate shall be signed by a responsible agent of the certifying organization. The initial certificate submitted shall be substantiated by evidence of the agents authority to bind his principal, Substantiation of the agents authority will not be required with subsequent certificates unless, during the

20、course of the contract, this authority is vested in another agent of the certifying organization. 4.2 First article inspection 4.2.1 Submission.-Prior to the start of regular production the contractor shall submit a first article sample (see 6.1) to a Government approved facility as designated by th

21、e contracting officer for evaluation in accordance with the provisions of 4.2.2. article sample shall consist of five(5) yards of material which has been produced by the contractor or furnished by a supplier and which have been manufactured using the same production processes, procedures and equipme

22、nt which will be used in fulfilling the contract. All parts and material including packaging and packing, shall be obtained from the same source of supply as will be used in regular production. Prior to submission, the contractor shall inspection the sample to the degree necessary to assure that it

23、conforms to the requirements of the contract, and submit 8 record of this inspection with the sample, including certificates of conformance for materials. A sample containing known defects will not be submitted unless specifically authorized by the contracting officer. A first article sample, or por

24、tion thereof, as directed by the contracting officer, shall also be submitted whenever there is a lapse in production for a period in excess of 90 days or whenever a change occurs in manufacturing process, material used, or specification such as to significantly affect product uniformity as determin

25、ed by the Government. The first 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-12800A (MU) 4.2.2 Inspections to be performed,-The sample will be subjected by the Government to any or all of the examination or tests specified in 4.3.2 and 4.4

26、 of this Specification. 4.2.3 Rejection,-If the sample fails to comply with the applicable requirement, the first article sample shall be rejected. The Government reserves the right to terminate its inspection upon any failure of the sample to comply with the stated requirement, 4.3 Inspection provi

27、sions 4.3.1 Lot formation.-The term linspection lott1 as used in this specification is defined as an essentially homogeneous collection of units of product from which a representative sample is drawn and inspected to determine conformance wlth applicable requirements. only that quantity of units fro

28、m which the sample was drawn and shall not be construed to represent any prior or subsequent quantities presented for inspection. considered to exist provided the inspection lot has been produced by one manufacturer, in one unchanged process, using the same materials and methods, with the same speci

29、fications and-same specification revisions and complies with the provisions for submission of product as specified in MIL-STD-105. Changes to the process, specifications, not affecting safety, performance, interchangeability, or storage, as determined by the Government, shall not be deemed to alter

30、the homogeneity of an inspection lot. in accordance with this specification shall comply with the homogeneity criteria specified herein regardless of the type of sampling procedure which is being applied to determine conformance with requirements. the end item shall be in accordance with 4.3.2.1 thr

31、ough 4.3.2.5. 4.3.2.1 Yard-by-yard examination.-Each roll in the sample shall be examined on the face side. When the total yardage in the roll does not exceed 100 yards, the entire yardage in the roll shall be examined. When the total yardage in the roll exceeds 100 yards, only the first 100 yards p

32、er roll shall be examined. The The sample selected shall represent Homogeneity shall be All material submitted for inspection 4.3.2 Examination of the end item,-Examination of _ 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-3Z8OOA 83 777970

33、6 O378333 L1 MIL-C-1280.0A (MU) sample size shall be in accordance with the following: Lot size (yards) Sample size (roils) i/ 3200 or less 3201 up to and including 10,000 10,000 and over 8 13 20 1/No more than one roll shall be taken from any shipping container, unless the number of shippirig co:if

34、;:i?-iies - 5; t:;c LG-, -:; A:;:; t.:.-s :-le m:r:;iiLled riwilwi? c” JOLLS, iri which case, all shipping coritahers shall be present in the sample. All defects as defined in Section III of FED-STD-4, which are clearly noticeable at normal inspection distances (3 feet) shall be scored and assigned

35、demerit points as listed in 4.3.2.2. No linear yard (incrernents of 1 yard on the measuring device of the inspection machine) from any one roll within the sample shall be penalized more than 4 points. shall be unacceptable if the points per 100 square yards of the total yardage examined exceeds 35 p

36、oints. The lot shall be unacceptable if the points per 100 square yards of two or more individual rolls exceed 53.0 points. If one roll exceeds 45.0 points per 100 square yards, a second sample equal in size to the first sample shall be examined only for individual roll quality examhation. The lot s

37、hall be unacceptable if one or more rolls in the second sample exceeds 45.0 points per 100 square yards. Point computation for lot quality and individual roll quality shall be as follows: .- The lot Total points scoreci in sample X 3600 Contracted width of cloth(inches) X total yards square yards =P

38、oints per 100 inspected as follows: 4.3.2.2 Demerit points.-Demerit points shall be assigned For defects up to and including 3 inches in any direction one point For defects exceeding 3 inches, but not exceeding 6 inches in any direction two points For defects exceeding-6 inches, but not exceeding 9

39、inches in any direction-three points For defects exceeding 9 inches in any direction four points 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-128OOA 83 M ?777906 0378332 b MIL-C-12800A (MU) The following defects, when present, shall be sco

40、red Hole, cut, tear or smash Overall uncleaness Objectional odor Cloudy, mottled or streaky four points for each yard in which they occur: 4.3.2.3 Examination for length 4.3.2.3.1 Individual roll.-During the yard-by-yard examination, each roll in the sample shall be examined for length. Any length f

41、ound to be less than the minimum specified or more than two yards less than 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 in respect to length. unacceptable if the total of the actua

42、l lengths of the rolls in the sample is less thari the total of the lengths marked on the tickets. shall be those selected for the examination of individual rolls . 4.3.2.3.2 Total yardage in sample.-The lot shall be The rolls examined 4.3.2.4 Examination for shade.-During the yard-by-yard examinati

43、on, each roll in the sample shall be examined for shade. Any roll in the sam;.le offshade, shaded side to side, side to center or end to end shall be cause for rejection of the entire lot represented by the sample. Examination for identification of pre-shrinkage process and non-compliance with Texti

44、le Fiber Products Identification Act.-During the yard-by-yard examination, each roll in the sample shall be examined for these defects. The lot shall be unacceptable if two or more rolls in the sample contain identification of the pre-shrinkage process by name or trademark on the cloth or ticket or

45、are not labelled or ticketed in accordance with the Textile Fiber Products Identification Act. 4.3.2.5 4.4 Test Methods I 4.4.1 Sampling.-One container (roll) shall be sampled from each lot. Five yards of material shall be subjected to the required inspections. on the first five yards of material fr

46、om the roll selected. If the sample fails to meet any fo the requirements, the lot shall be rejected. No inspection shall be performed Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-3EOOA 3 m 7777706 0378333 W MIL-C-12800A (MU) 4.4.2 Width - M

47、ajor defect - Code No. 01001.-The width of the acrylic cloth shall be determined as specified in FED-STD-191, Method 5020. 4.4.3 Weave - Major defect - Code No. 02001.-The weave shall be determined as specified in ASTM-D-123. 4.4.4 Weight - Major defect - Code No. 03001.-Tbe weight shall be determin

48、ed as specified in FED-STD-191, Method 5040. 4.4.5 Breaking strength - Major defect - Code No. 04001.-The breaking strength shall be determined as specified in FED-STD-191, Method 5100. 4.4.6 pH of water extract - Major defect - Code No. 05001.- The pH of the water extract shall be determined as spe

49、cified in FED-STD-191, Method 2811. 4.4.7 Acidity or alkalinity - Major defect - Code No. 06001.- Decant the water extract obtained in the determination of pH into a 250 ml beaker forcing as much absorbed water as possible out of the cloth by pressing the cloth against the side of the beaker with the aid of a glass stirring rod. If the pH of the water extract is 7.0 or greater, titrate the solution with approximately