AIR FORCE MIL-H-25754 B-1976 HOOD WINTER KNIT WOOL《毛纺针织冬季头罩》.pdf

《AIR FORCE MIL-H-25754 B-1976 HOOD WINTER KNIT WOOL《毛纺针织冬季头罩》.pdf》由会员分享，可在线阅读，更多相关《AIR FORCE MIL-H-25754 B-1976 HOOD WINTER KNIT WOOL《毛纺针织冬季头罩》.pdf（13页珍藏版）》请在麦多课文档分享上搜索。

1、MILH-2 5754A (USAF ) 30 .July i964 -_ MILITARY SPECIFICATION HOOD, WINTER, KNIT, WOOL This specification is approved for use by all Depart- ments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification covers the requirements for a hood, winter, knit, wool, used as a compon

2、ent of the Air Force survival kits. * 1.2 Classification. This specification covers the requirements for one type of hood in sizes small, medium, and large as specified (see 6.2). 20 APPLICABLE DOCUMENTS 2.1 bids or request for proposal, form a part of this specification to the extent specified here

3、in. The following documents, f the issue in effect on date of invitation for SPECIFICATIONS Federal LP-378 -276 Thread, Cotton DDD-L-20 PPP-B-5 66 Boxes, Folding, Paperboard PPP-B-636 Boxes, Shipping Fiberboard PPP-B-665 PPP-B-676 Boxes, Set-up PPP-T-60 Tape, Packaging, Waterproof Plastic Sheet And

4、Strip,-Thin Gage, Polyolefin Label; For Clothing, Equipage, And Tentage, (General Use) Boxes, Paperboard, Metal Edged And Component B Beneficial comments (recommendations , additions , deletions) and any pertinent data which may be of use in improving this document should be addressed to San Antonio

5、 Air Logaitics Center, Engineering Division, ATTN: MMEDO, Kelly AFB TX 78241 by using the self-addressed Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS

6、-,-,- - MIL-H-257548 84 9999906 0385393 I M MIEH-2575 4B (USAF ) STANDARDS Federal FED-STR-191 FED-STb751 Military Textile Test Methods Stitches, Seams, And Stitchings MIL-STD-105 MIL-STD-129 MIL-STD-1491 Glossary Of Knitting Imperfections Sampling Procedures And Tables For Inspection By Attributes

7、Marking For Shipment And Storage (Copies of specifications, standards, drawings y and publications required by suppliers in connection with specific procurement unctions should be obtained from the procuring activity or as directed by the contracting officer.) 2.2 Other publications. cation to the e

8、xtent specified herein. Unless otherwise indicated, the issue in effect on date of invitation for bids or request for proposal shall apply. The following documents form a part of this specifi- U.S. DEPARTMENT OF AGRICULTURE Methods of Test for Grades of Wool Top (Application for copies should be add

9、ressed to the U.S. Department of Agriculture y Agriculture Marketing Service, Washington, D. C 20402. ) RULES AND REGULATIONS UNDER THE WOOL PRODUCTS LABELING ACT OF 1939 (Application for copies should be addressed to the Superintendent of Documents, Government Printing Office, Washington D.C. 20402

10、. ) . 3. REQUIREMENTS 3.1 Standard sample. 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). 3.2 First article approval. specified by the Procuring Activity (see 6.2). The cloth shall match the standard sam

11、ple for shade and . The requirement for First Article will be as /=I -.j 3.3 Materials. 3.3.1 Voolyarn. The yarn for knitting and cover stitching the hood shall be made from long staple, fleece or pulled sheeps wool, not lower in grade than 56s U.S. Standard. The wool shall be carded, combed, spun,

12、and twisted into two-ply worsted yarn. The use of noils, laps or any other wool manufacturing by products is p.rohibited. The lubricant used in spinning the yarn shall not contain any oils which are likely to turn rancid or discolor the yarn or fabric in storage. I 2 *.- : Provided by IHSNot for Res

13、aleNo reproduction or networking permitted without license from IHS-,-,-MIL-H-2575 4B (USAF ) * 3.3.2 Thread. The thread for all sewing operations shall be cotton, not finer than 50/3, conforming to type IA3 of V-T-276 and shall be vat dyed to match sage green USAF color shade No. 1509 (see 6.3). ha

14、ue good colorfastness to laundering and perspiration. The thread shall * 3.4 Desim. The hood shall be knitted us shown on Figures 1 and 2. 3.5 Color. Unless otherwise specified, the color of the hoods shall match sage green USAF color shade No. 1525 (see 6.3). by stock or yarn dying using chrome or

15、acid dyes. The color shall be obtained * 3.6 KnittinK, Knitting shall be made on a circular or flat bed machine with not less than two ends of two-ply worsted yarn in each feed. hood shall be knitted with 2-1/2 inches of a 1 by 1 rib stitch followed with 6 inches of half-cardigan stitch for the smal

16、l size, 6-1/4 inches for the reeium size, and 6-1/2 inches for the large size. The bottom of the hood shall be knitted with a 1 by 1 rib stitch for 6-3/4 inches, finished with a racked nonraveling selvage edge. The top of * 3.7 Fabrication. The hoods may be knitted seamless or.may be seamed in the c

17、enter of the back, using stitch type 504 and cover stitch type 406. If the hood is knitted with selvage edges, the seam may be made using stitch type 502. In either case, the ends of the seam shall be securely tacked. darts (on each side of the tubing) 2-1/4 inches deep, finished as shown on Figure

18、1, to form a six-dart top. cross seams by first seaming with stitch type 504 and then cover seaming with stitch type 406. * 3.7.1 Top. The top of the crown shall be formed by cutting three V-shaped The darts shall be joined with three * 3.7.2 Front oDeninq. The hood shall have a front or face openin

19、g as shown The lower or center part of on Figure 2 and formed as follows: upwards shall be cut in half cardigan section. this slit shall be 1/2 inch above the bottom edge ofthe half cardigan section. The length of the slit, measuring straight across from end to end, (not on the curve) shall be 642 i

20、nches. A 1 by 1 ribbed crescent shaped piece, 244 inches wide at the center, shall be stitched to the lower edge. at the outer edge. shall be first seamed onto the hood with stitch type 504, and then cover seamed with stitch type 406. with stitch type 504, or equal, then folded to the inside to a de

21、pth of 1-i/4 inches at the center and blindstitched with stitch type 504, or equal, using worsted yarn for the cover-thread. securely tacked. An arc-shaped slit, with the ends curving The depth of the arc shall be 2-1/4 inches. This piece ehall have a racked selvage edge The curved edge, which shall

22、 be shaped to fit the slit, The top edge of the slit shall be first edged Both ends of the opening shall be * 3.8 Stitches, seams and stitchings. Stitching types shall conform to FED-STD-751. All seaming and stitching shall be performed with not less than 10 nor more than 14 stitches per inch. with

23、cotton thread; stitch type 502 shall be made with worsted yarn, and stitch types 503 and 406 shall be made with worsted yarn and cotton thread. Other stitch types equivalent to those specified will be acceptable upon approval by the contracting officer. Stitch type 504 shall be made 3 Provided by IH

24、SNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-I - HOOD MUST BE FOLDED ON THIS LINE , i.- HEAD WIDTH - -. - - - DENOTES CUTTING LWE TOP OF HOOD i HEAR LENGTH BOTTOM LENGTH - .1 . i .-. y-) .- -, FIGURE 1. RESION Of HOOD bf Provided by IHSNot for ResaleNo reproduc

25、tion or networking permitted without license from IHS-,-,-.- - r I X I RIB STITCH - HEAD WIDTH HALF CARDIGAN BLIND STITCH FRONT OPENIW FRONT OPENING POSITION XI RIB STITCH RACKED NON-RAVELING SELVAGE EDGE FIGURE 2 -KNITTING OF HOOD 5 .c. : . Provided by IHSNot for ResaleNo reproduction or networking

26、 permitted without license from IHS-,-,-_- I- - - MIL-H-257548 4 = 9979906 0385397 7 = - Direction Wales per inch Courses per inch MIL-H-25 754B( USAF ) Stitch Tyoe Half Cardigan 1 by 1 Rib 5 8 11 12 * 3.9 Performance. * 3.9.1 Matching. The color shall match the approved standard shade when it 3.9.2

27、 Colorfastness. The color shall show good colorfastness to crocking and * 3.9.3 Wales and courses. The construction of the cloth shall conform to tested as specified in Section 4. perspiration when tested as specified in Section 4. the minimum requirements of Table I when tested as specified in Sect

28、ion 4. Size Small Medium Large I Weight 2.25 2.50 2 .?5 TABlX II - WEIGHT OF FINISHED HOODS I I * 3.9.7 Extractable matter. The extractable shall not exceed 5 percent of total * 3.9.8 Measurements. The finished hoods shall conform to the measurements weight . listed in Table III. -. , - _I_ - 6 Prov

29、ided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- TABLE III - MEASUREMENTS ( IN INCHES) Description L Large - -_ _ Top of hood (see 3.6) Dart - length (see 3.7.1) Head - Length (see 3.6) Head - width Bottom - length (see 3.6) Front opening position (see 3

30、.7.2 Front opening width (see 3.7.2) Front opening - arc depth (see 3.7.2) Front opening - hem (see 3.7.2) Over-all length - l/ All measurements shall be taken with the hood in the relaxed condition. 242 2-1/4 6-1/2 9-1/2 6-3/4 1/2 6-1/2 2-1/4 1-1/4 15-3/4 Tolerance (Plus or Minus) * 3.10 Finish. Th

31、e finished hoods shall be steam pressed without application of undue stresses. * 3.11 Identification of product. * 3.11.1 Contractors label. A 1-5/16 inch by 2-3/4 inch, contractors label conforming to type I, class 4 of DDD-L-20 shall be securely sewn to the inside at the top of the crown, position

32、ed to the right or left of the center seam and below the darts of each hood. both ends not less than 1/8 inch nor more than 1/4 inch from the ends of the label. The label shall be attached slack so that the material ofthe hood under the label may be stitched approximately 1/2 inch without constricti

33、on. The label shall contain the following information: The label shallbe stitched vertically along Hood, Winter, Knit, Wool Contract or Order No,* Size* Stock No,* MIL-H-25754B( USAF) * The manufacturer shall include the applicable data. Provided by IHSNot for ResaleNo reproduction or networking per

34、mitted without license from IHS-,-,-Y * 4t Y u L Lot Size (Pounds or Units) 800 or less 801 to 22,oo 22,001 an/over 3.11.2 Wool contents label. Froducts Labeling Act of 1939. label. The hoad shall be marked to conform to the Wool The legend may be included in the contractors Sample Size 2 3 5 3.12 W

35、orkmanshiP. drop stitches, oil stains, and any other defects which may affect appearance or serviceability. The hoods shall be clean, well made, free from holes, 4. QUALITY ASSURAMCE PROVISIONS 4.1 Responsibility for inspection, Unless otherwise specified in the coqtract, the contractor is responsib

36、le for the performance of all inspection require- ments as specified herein. contractor may use his own or any other facilities suitable for the performance of the inspection requirements specified herein, unless disapproved by the Covenment. set forth in the specification where such inspections are

37、 deemed necessary to assure supplies and services conform to prescribed requirements. 4.2 Testing of cornnonents, accordance with FED-STD-191, whenever applicable, end as specified in 4.2.1 and 4.2.2. 4.2,1 Wool made (scoured wool). The grade of wool, in the scoured form, shall be determined by visu

38、al comparison with the applicable U.S. Standard prior to dyeing, picking, and carding. from thiscomparison, the wool grade shall be determined by a width method (wedge). of 1 pound for each 10,000 pounds or fraction thereof in the lot. The lot shall be unacceptable if the sample does not conform to

39、the requirements of Except as otherwise specified in the contract, the The Government reserves the right to perform any of the inspections The methods of testing components shall be in In the event of a dispute resulting The examination for grade shall be performed on a composite sample 3.3.1. 4.2.2

40、 Wool grade (top). by comparison with the applicable U.S. Standard. the wool grade shall be determined by the width method. shU be 1 yard of undyed top. shall conform to Table IV. reported separately. fails to meet the required grade, The grade of wool in top form shall be determined In the event of

41、 a dispute, The unit of product The sample size (number of units of product) The results of each unit of product shall be The lot shall be unacceptable if a single unit of product Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-H-25759B 89 W 999

42、990b 0385900 5 d MIL-H-S57ThB( USAF) * 4.2.3 Certificate of compliance. Where certificates of compliance ake sub- mitted, the Government reserves the right to test items to determine the validity of the certification. it 4.2.4 First article inspection. When required, the first article of the finishe

43、d cloth submitted in accordance with 3.2 shall be visually inspected for appearance, color and finish. The sample shall be tested for Dhysical and chemical properties in accordance with the methods specified in 4.5. +i 4.2.5 Inspectioz Inspection shall be performed in accordance with * 4.2,6 In-Proc

44、ess inspection. Inspection shall be made at any point during Mil-STD-105, except where otherwise indicated. any phase of the manufacturing process to assure that no laps, noils, or any other wool manufacturing by-products are used (see 3.3.1). reserves the right to exclude from consideration for acc

45、eptance any material for which in-process inspection has indicated nonconformance. * 4.3 Examination of the end item. The finished hood shall be examined for the defects specified in 4.3.1 and 4.3.2. units of one hood. The acceptable quality levels shall be 6.5 defects per 100 units (one class) for

46、4.3.1 and 4.0 defects per 100 units (one class) for 4.3.2. levels shall be I of MIL-STD-105 for 4.3.1 and S-3 of MIL-STD-105 for 4.3.2. * 4.3.1 Visual examination. The finished hood shall be visually examined for The Government The lot size shall be expressed in The unit of product for the examinati

47、ons shall be one hood. The inspection the following defects in accordance with MIL-STD-1491: Examine Mat erial Defect Hole, run, dropped stitch, cut or tear, or thin or uneven fabric Burrs or shives (accumulation) Mend Slubby yarn more than three times the thickness of the normal yarn Spot, stain, o

48、r streak Knots protruding from the surface Racked selvage (where applicable) missing Seams and stitching Incorrect stitching type Cover stitching omitted End of seam not securely tacked Open seam or skipped or broken stitches Raw edge more than 1/4 inch I 9 Provided by IHSNot for ResaleNo reproducti

49、on or networking permitted without license from IHS-,-,-1- MIL-H-25754B L( I 7777906 O385403 7 m - MIGH-2 575 4B ( USAF ) Needle chew Loose stitch tension secured seams Tight stitch tension Less than 10 or more resulting in loosely than i4 stitches per inch Label Omitted, illegible, misplaced, incorrect legend, or improperly.attached 4.3.2 Examinati