1、Ca- JJ-N-180G July 20, 1978 SUPERSEDING Fed Spec. JJ-N-180F June 27, 1972 FEDEXAL SPECIFICATION NETS, LAUNDRY This specification was approved by the Commissioner, Federal Supply Service, General Services Administration, for the use of all Federal agencies. 1. SCOPE AND CLASSIFICATION 1.1 Scope. This
2、 speciiication covers the requirements for a laundry net in the form of bags. 1.2 Classification. The laundry nets shall be of the following types, styles, and sizes, as specified (see 6.2): Type I - With grommets. Type II - Without grommets. Style A - Leno weave (Nylon). Style B - Warp knit (Nylon
3、or Nylon/Polyester). Size 2 - 12 by 22 inches (305 by 559 mm). Size 4 - 24 by 36 inches (610 by 914 nun). 2. APPLICABLE DOCUMENTS 2.1 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 here
4、in: Federal Specifications: V-T-285 - Thread, Polyester V-T-295 - Thread, Nylon UU-P-268 - Paper, Kraft, Wrapping PPP-B-6 36 - Boxes, Shipping, Fiberboard FSC 3510 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-JJ-N-LOG 35 I 999997Li 0056907 5 W * J
5、J-N-18 OG Federal Standards: FED-STD-123 - Marking for Shipment (Civil Agencies) FED-STD-191 - Textile Test Methods FED-STD-751 - Stitches, Seams, and Stitchings (Activities outside the Federal Government may obtain copies of Federal Specifications, Standards, and Handbooks outlined under General In
6、formation in the Index of Federal Specifications And Standards and at the prices indicated in the Index. supplements as issued, is for sale on a subscription basis by the Super- intendent of Documents, U.S. Government Printing Office, Washington, DC 20402. (Single copies of this specification and ot
7、her Federal Specifications required by activities outside the Federal Government for bidding purposes are available without charge from Business Service Centers at the General Services Ad- ministration Regional Offices in Boston, New York, Philadelphia, Washington, DC, Atlanta, Chicago, Kansas City,
8、 MO, Fort Worth, Houston, Denver, San Francisco, Los Angeles, and Seattle, WA. (Federal Government activities may obtain copies of Federal Specifications, Standards, and Handbooks and the Index of Federal Specifications and Standards from established distribution points in their agencies,) The Index
9、, which includes cumulative monthly ( Military Specification: MIL-G-16491 - Grommet, Metallic Military Standards: MIL-STD-105 - Sampling Procedures and Tables for Inspection by Attributes MIL-STD-129 - Marking for Shipment and Storage (Copies of Military specifications and standards required by cont
10、ractors 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 Specification to the extent specified herein. Unless a specifi issue is identified,
11、 the issue in effect on date of invitation for bi l s or request for proposal shall apply: 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-J J-N-180G National Motor Freight Traffic Association, Inc., Agent National Motor Freight Classification (App
12、lication for copies should be addressed to the American Trucking Association, Inc., Traffic Department, 1616 P Street, N.W., Washington, DC 20036.) Uniform Classification Committee, Agent Uniform Freight Classification (Application for copies should be addressed to the Uniform Classification Committ
13、ee, Room 1106, 222 South Riverside Plaza, Chicago, IL 60606 .) 3, REQUIREMENTS 3.1 Materials (see 6.3). 3.1.1 Fabric, 3.1.1.1 Yarn, nylon. The nylon yarn shall be bright, high tenacity, 260 denier (29 tex), 17 filament nylon having sufficient twist to meet the requirements of table I. 3.1.1.2 Yarn,
14、nylon/polyester. The nylon yarn shall be bright, high tenacity, 840 denier (93 tex) (nominal) nylon 6-6. The polyester yarn shall be 150 denier (17 tex) (nominal). 3,1,1.3 Construction, fabric. The fabric shall be either style A (leno weave) or style B (warp knit) as specified (see 6.2). 3.1.1.3.1 S
15、tyle A, leno weave, The fabric shall be woven with a 1 and 1 leno weave and shall conform to the requirements shown in table I. 3.1.1.3.2 Style B, warp knit. The fabric shall be of the mesh type knitted on a warp-type knitting machine and shall conform to the physical requirements shown in table I,
16、3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-JJ-N- or polyester thread conforming to type I or II, class 1, subclass A, size E, natural of V-T-285. 3.1.3 Grommets. Grommets for type I nets shall conform to type I, class 1, size 4f MIL-G-16491. 3
17、.2 Construction, net. The fabric shall be made into a rectangular- Leno-weave fabric shall have the finish The fabric shall be folded lengthwise and Theselvage to be used for the bottom shaped bag, formed by cutting the material so that the finished net shall conform to the size specified. running l
18、engthwise of the net. The warp-knit fabric shall have the wales . running lengthwise of the net. stitched along the bottom and side, with the stitching continued along the folded-side edge for 4 +1/2 inch (102 + 13 ram), or along the two sides and bottom if two pieces are used. of the net for size 4
19、 bags shall be reeded alternately 4 ends and 2 ends per dent to a minimum width of 3/4 inch (19 mm). top pin edge of all sizes shall be reeded 2 ends per dent, skip 1 dent, 2 ends per dent for 2 to 2-1/2 inches (51 to 64 ram), then alternate 4 ends and 2 ends per dent to a minimum width of 3/4 inch
20、(19 nun). When thread breaks, run-Offs or skip stitching occur during sewing, the stitchinn shall be repaired by restarting the stitching a minimum of 2-inches (51 mm) back of the defective stitching. consecutive skipped stitches noted during inspection of the item (in-process or end item) shall be
21、repaired by overstitching both ends of the defective stitching. The stitching shall start a minimum of 2-inches (51 m) in back of the defective area, continue over the defective area, and continue a minimum of 2-inches (51 mm) beyond the defective area on to the existing stitching. Loose or excessiv
22、ely tight stitching shall be repaired by removing the defective stitching, without damaging the materials, and restitching in-the required manner. required to be backstitched. The selvage for the Thread breaks, run-Offs or two or more When making the above repairs, the ends of the stitching are not
23、3.2.1 Top. The top of the net shall be folded to the inside with raw edge turned in and overedged with one row of stitch type 504 and stitching type EFab-1 of FED-STD-751 with 10 to 12 stitches per inch (4-5 stitches/cm). A second row of stitch type 504 shall be stitched over the first row. The amou
24、nt of fabric inclosed by the stitching measured from the needle line of stitching to the raw edge of the material shall be not less than 1/2 inch (13 mm), and not more than 1 inch (25 mm). the second row shall be overstitched at least 2-inches (51 m), The first end of stitches of 5 Provided by IHSNo
25、t for ResaleNo reproduction or networking permitted without license from IHS-,-,-JJ-N-ZOG 35 m 9797774 0056933 7 = T J J-N-180G 3.2.2 Bottom and sides, The bottom and sides of the net shall be folded and overedge stitched with one row of stitch type 504 similar to seam type SSp-1 of FED-STD-751 with
26、 10 to 12 stitches per inch (4-5 stitches/cm). amount of fabric inclosed by the stitching when measured from the needle line of stitching to the raw edge of the material shall be not less than 5/8 inch (16 mm), and not more than 1 inch (25 mm). stitches not caught in other seams or stitches shall be
27、 folded back 1/2 to 5/8 inch (13 to 16 m), and bartacked parallel to the row of stitches, The bartacks shall be 1/2 - 1/8 inch (13 + 3 mm) long. Alternatively, the ends of stitching chain may be stitched back into the seam by means of the appropriate mechanical device. The The ends of the 3.2.3 Type
28、 I net, Type I net shall have two brass grommets as specified in 3.1.3, positioned as follows: (25 4 6 mm) from the side seam and the top folded edge. grommet shall be placed on the opposite side, similarly positioned from the folded edge. The cloth shall not break, tear, or become loosened from the
29、 grommets when manual pressure is applied after laundering, as specified in 4.2.4. One grommet shall be placed 1 + 1/4 inch The other 3.2.4 Dimensions. Outside diiensions of thebags shall be as follows: Size 2 12 by 22 inches (305 by 559 mm) Size 4 - 24 by 36 inches (610 by 914 mu) - Unless otherwis
30、e specified, a minus tolerance of 1/2 inch (13 mu), and any plus tolerance in width or length of nets shall be permitted. 3.3 Workmanship. Cloth components shall be free of cuts, tears, broken or missing yarns or snagged yarn (knit). There shall be no hole, smash, mend, run or dropped stitch. loose
31、yarns resulting in loops or slippage of mesh or knit, clearly visible. Thread tension shall be maintained so that there will be no loose stitching. Metal components shall be free of burrs, sharp edges, and shall not be broken or malformed. The fabric shall not be sleazy or uneven with . 4, QUALITY A
32、SSURANCE PROVISIONS 4.1 Responsibility for inspection. Unless otherwise specified in the contract or purchase order, the contractor is responsible for the performance of all inspection requirements as specified herein. Except as otherwise specified in the contract or order, the contractor may use hi
33、s own or any other facilities suitable for the performance of the inspection requirements specified herein, unless disapproved by the Government. 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-c JJ-N-18oG the performance of the inspection requirem
34、ents 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. 4.2 Quality conformance insp
35、ection. Except as otherwise specified herein, sampling shall be performed in accordance with MIL-STD-105. 4.2.1 Component and material inspection. In accordance with 4.1, the components and materials shall be tested in accordance with all the require- ments of referenced specifications, drawings, an
36、d standards unless otherwise excluded, amended, modified, or qualified in this specification or applicable purchase document. 4.2.2 End item examination. The end item shall be examined in accordance. The.lot size shall be expressed in units of one net. with tables II and III. The sample unit shall b
37、e one net. level (AQL) for each examination shall be as specified in 4.2.2.3. The.inspection level and acceptable quality 4.2.2.1 Visual examination. The end item shall be examined for the following defects. TABLE II. Classification of defects - Classification Defects Major Minor Material defects (l
38、eno and knit fabrics as applicable) : Broken or missing yarns or snagged yarn (knit): Two or more continuous X Single X Thin places X Hole, smash, mend, run or dropped stitch X Sleazy or uneven fabric, loose yarns - resulting in loops or slippage of mesh or knit, clearly visible at normal inspection
39、 distance (approximately 3 feet) (1 m) Color - other than white (natural) X X T Workmanship : Grease, oil or other foreign matter, spots or stains, except ink stains: 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-JJ-N-L8OG 35 7779774 0056733 O W
40、J J-N-180G T c TABLE II. ClassiEScation of defects (contd) - Classification Defects Major Minor Workmanship : (cont d) More than 2 inches (51 mm) in combined directions X More than 1/2 inch (13 mm) but not more than 2 Ink stains, more than 2 inches (51 nun) in combined inches (51 mm) in combined dir
41、ections direct ions Cut, tear, or needle chews: Resulting in a weak place X Not resulting in a weak place Open seams X NOTE: A seam shall be classified as open when one or more stitches joining a seam are broken or when two or more continuous skipped stitches or run-offs occur, Raw edge - more than
42、2 inches (51 mm) in length NOTE: Raw edges not securely caught in stitching shall be classified as open seams. Wrong seam or stitch type Stitches per inch: (cm) Less than 8 (3) Eight or 9 (3) or more than 12 (5) Stitch tension - loose - resulting in loosely secured seam or tight - resulting in pucke
43、ring, clearly visible at normal inspection distance (approximately 3 feet) (1 m) Stitching: Thread breaks, run-off or skip stitching not repaired Thread breaks, run-Offs or two or more skipped stigches repaired by overstitching less than 2-inches (5 m) Loose or excessively tight stitching not repair
44、ed as specified X X X X X X X X X X X 8 - Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-JJ-N-18oG TABLE II. Classification of defects (contd) Classification Defects Ma j or Minor Construction: Top : Not turned under X Fabric inclosed by stitching l
45、ess than 1/2 (13 mm) or more than 1 inch (25 mm) is not overstitched X overstitched less than 2 inches (51 mm) X X X Not overedged with one row of stitching When the first end of the stitches of the second row When the first end of stitches of the second row is Bottom and sides: Not folded under X F
46、abric inclosed by stitching less than 5/8 (16 mm) or more than 1 inch (25 mm) Stitching continued along folded edge for less than 3-1/2 (89 mm) or more than 4-1/2 inches (114 nun) When the ends of the stitches not caught in other seams or stitches are not folded back nor bartacked or ends of stitchi
47、ng chain not stitched back into seam X Bartack not of specified dimensions Grommets (type I nets Only) : One or both missing or not securely attached Located more than 1-1/4 (32 mm) or less than 3/4 inch (19 mm) from the side seam and the top folded edge Net : Net formed with filling running other t
48、han lengthwise Net formed with wales running other than lengthwise Net not specified type, style and size direction of net (leno) direction of net (knit) X X X X X X X X 9 - Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-JJ-N-LOG 35 m 7777779 005b71
49、5 9 m i JJ-N-18OG 4 . 2.2.2 Examination for dimensions. Examination for dimensions shall be in accordance with the classification of defects listed in table III. TABLE III, Classificatzon of dimension defects Classification Defects Major Minor . Any measurement less than the specified dimension and twice the minus tolerance X Any measurement less than the specified dimension and minus tolerance, but not less than twi
