1、RR-W-365A September 5, 1980 SUPERSEDING Fed. Spec. RR-W365 December 2, 1965 FEDERAL SPECIFICATION WIRE FABRIC (INSECT SCREENING) This specification was approved by the Commissioner, Federal Supply Services, General Services Administration, for the use of all Federal agen.cies. 1. SCOPE AND CLASSIFIC
2、ATION 1.1 Scope. This specification covers wire mesh fabric. It does not apply to wire cloth for precision sieves or to industrial wire cloth of any description. 1.2 Classification. 1.2.1 Types and classes. The wire fabric shall be of the following types and classes, as specified (see 6.2). Type : I
3、 - Copper II - Commercial bronze (bra I II - Bronze IV - Carbon steel . ss) Class 1 - Zinc coated (galvanized) Class 2 - Black painted V - Nickel-copper alloy VI - Corrosion-resistant steel VI1 - Aluminum alloy 2. APPLICABLE DOCUMENTS 2.1 The following documents, of the issue ct on date of invitatio
4、n for bids or request-for proposal , form a part of this specification to the ex- tent specified herein: s in effe ,Federal Standard: FED-STD-151 - Metals; Test Methods. (Activities outisde the Federal Government my obtain copies of Federal speci- fication, standards, and commercial item description
5、s as outlined under General Information in the Index of Federal Specifications, Standards,and Commercial Item Descriptions. The Index, which includes cumulative bimonthly supplements as issued, is for sale on a subscription basis by the Superintendent of Documents, U.S. Government Printing Office, W
6、ashington, DC 20402. FSC 5335.“-, THIS DOCUMENT CONTAINS /o PAGES. Licensed by Information Handling ServicesProvided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-RR-W-365A (Single copies of this specification, other Federal specifications, and commercial i
7、tem descriptions required by activities outside the Federal Govern- ment for bidding purposes are available without charge from General Services Administration Business Service Centers in Boston; New York; Washington, DC; Philadelphia; Atlanta; Chicago; Kansas City, MO; Fort Worth; Houston; Denver,
8、San Francisco; Los Angeles; and Seattle, WA. (Federal Government activities may obtain copies of Federal specifications, standards, and comercial item descriptions, and the Index of Federal Specifications, Standards and Comercial Item Descriptions from established distribbtion points in their agenci
9、es.) Military Standard: MIL-STD-105 - Sampling Procedures and Tables for Inspection by Attributes. . (Copies of Military specifications and standards required by contractors in connection with specific procurement functions should be obtained from the procuring activity or as directed by the contrac
10、ting officer.) 2.2 Other publications. The following documents form a part of this specification to the extent specified herein. Unless a specific issue is identified, the issue in effect on date of invitation for bids or request for proposal shall apply. NATIONAL MCYlOR FREIGHT TRAFFIC ASSOCIATION,
11、 INC., AGENT: National Motor Freight Classification. (Application for copies should be addressed to the American Trucking Associations, Inc., Traffic Department, 1616 P Street, N.W., Washington, X! 20036. ) UNIFORM CLASSIFICATION COMMITTEE, AGENT: Uniform Freight Classification. (Application for cop
12、ies should be addressed to the Uniform Classification Committee, Room 1106, 222 South Riverside Plaza, Chicago, IL 60606.) AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) STNRARRS: B5 57 - Tension Testing Wrought and Cast Aluminum and B211 - Specification for Aluminum Alloy Bars, Rods Magnesium Al
13、loy Products. and -Wires. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-RR-W-365A (Application for copies should be addressed to the American Society for Testing and Material, 1916 Race Street, Philadelphia, PA 19103.) 3. ReQUIREMENTS 3.1 Material.
14、 Material shall be as specified herein. (see 3.6 and 6.4) 3.2 Dimensions. 3.2.1 Width. The width of the wire fabric shall be 24, 26, 28, 30, 32, 34, 36, 42, or 48 inches, as specified (see 6.2), with a permissible tolerance of plus or minus 1/8 inch from outside wire to outside wire. 3.2.2 Length. U
15、nless otherwise specified (see 6.2), the wire fabric shall be provided in rolls of 100 linear feet plus 2 or minus O linear feet. 3.2.3 Continuity. Not less than 87.5 percent of the 100-foot rolls of wire fabric shall be in one continuous length; the remaining 12.5 percent shall contain not more tha
16、n two pieces per roll, neither of which shall be less than 10 linear feet. 3.3 Splices. Splices not more than 1 inch in length, showing no tails, shall be permissible at any point of any individual wire provided that the number of such splices shall not exceed 30 in any 100 linear foot roll, nor mor
17、e than 2 in any single square foot of finished wire fabric. 3.4 Selvage. The wire fabric shall be selvaged by one or more wires in each edge. 3.5 Mesh size (count) and wire size. 3.5.1 Mesh size (count). The mesh size (count) shall be as specified (see 6.2), and shall be as shown in table I. Permiss
18、ible tolerance in the mesh size (count) of all types of wire fabric shall be plus or minus 1/4 mesh per linear inch in the warp and plus or minus 1/2 mesh per linear inch in the filing . 3.5.2 Wire sizes. Wire sizes shall be as shown in table I. Permissible tolerance shall be plus or minus 0.0005 in
19、ch. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-RR-W- 3 6 5A TABLE I. Mesh and wire sizes. Meshes per linear inch 16 by 16 heavy 18 by 14 regular 18 by 14 heavy 18 by 16 heavy 18 by 16 regular 18 by 18 regular 20 by 20 regular 22 by 22 heavy 24
20、 by 24 regular c I 0.015 - - .O15 . o11 . o11 . o11 .O15 - Diameter Types II and III O. 015 . o11 .O15 . o11 . o11 . o11 .O15 . o11 - *Bare wire before coating or painting. If wire (in Type IV, classes 1 and 2 - o. 0.1 1 * - - . Oll* .Oll* - - - inches) Type V Type VI- - O. 013 - - o. O09 - - - Type
21、 VI11 - - - . o11 .o11 . o11 - - 3.6 Certification. Unless otherwise specified, wire fabric offered under this specification shall be certified by the contractor to have successfully completed tests for chemical analysis (see 4.5.3 and 6.2). 3.6.1 Type I, copper. Type I wire fabric shall be of hard
22、drawn copper wire of not less than 99.9 percent purity. 3.6.2 Type II, commercial bronze (brass). Type II wire fabric shall be of wire containing 89 to 91 percent copper. The remainder shall be zinc; however, impurities of lead and iron not to exceed 0.05 percent each shall be permitted. 3.6.3 Type
23、III, bronze. Type III wire fabric shall be of wire containing not less than 97.25 percent copper, and 1.5 to 2.0 percent tin. The remainder shall be zinc; however, impurities of lead and iron not to exceed 0.05 percent each shall be permitted. 3.6.4 Type IV, carbon steel. Type IV wire fabric shall b
24、e of carbon steel wire. 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-RR-W-365A 53 m 7777774 0004467 O m I RR-W-365A 3.6.5 Type V, nickel-copper alloy. Type V wire fabric shall be of nickel-copper wire. The limiting chemical components shali be a
25、s follows (see 4.5.3) : Material Percent Iron Manganese Silicon Carbon Sulfur Nickel Copper 2.5 maximum 2. O maximum 0.5 maximum O. 3 maximum O. 02 maximum 63.0-70.0 Remainder 3.6.6 Type VI, corrosion-resistant steel. Type VI wire fabric shall be of corrosion-resistant steel wire. The chemical compo
26、nents shall be within the following limits: Mater ia1 Percent I Maganese Silicon Phosphorus Sulfur Carbon Chromium Nickel Molybdenum Iron (by difference) 2.0 maximum 1.0 maximum O. 04 maximum 0.03 maximum 0.10 maximum 16.0-18.0 10.0-14.0 2.00-3.00 Remainder 3.6.7 Type VII, aluminum alloy. Type VI1 w
27、ire fabric shall be of wire conforming to ASTM B211, Alclad 5056-H392 having a minimum tensile of 50 KSI cladding shall consitute at least 15 percent of the cross-sectioned area of the wire. Chemical composition of the core and cladding alloys shall be within the following limits: 5 Provided by IHSN
28、ot for ResaleNo reproduction or networking permitted without license from IHS-,-,-RR-W- 3 6 5A Element 5056 Core, Percent 6253 Cladding, Percent Magnesium Silicon Manganese Chromium Zinc Iron Copper Other elements each Other elements total Aluminum (by difference) 4.5 to 5.6 O -30 maximum 0.05 to 0.
29、20 0.05 to 0.20 0.10 maximum O .40 maximum 0.10 maximum 0.05 maximum O . 15 maximum Remainder 1.0 to 1.5 45 to 65 percent of actual magnesium 0.04 -to 0.35 1.6 to 2.4 O . 50 maximum 0.10 maximum - 0.05 maximum O . 15 maximum Remainder 3.7 Finish. Wire fabric shall be finished as specified herein. 3.
30、7.1 Zinc coatinq (galvanize) Type IV, Class 1. Type IV, class 1 wire fabric shall be zinc coated by the hot dip or electrolytic process before or after weaving. -The zinc coating shall be not less than five percent of the weight of the bare steel wire. The purity of the zinc shall be not less than 9
31、8 percent whendeposited. 3.7.2 Paint. Unless otherwise specified (see 6.2), wire fabric type II, IV and VI1 shall be coated as follows: Type II - clear varnish or lacquer Type IV, Class 2 - black paint Type VI1 - Aluminum pigment paint Tm IV, Class 1 - gray pigment paint 3.8 Workmanship. The wire fa
32、bric shall have no defects which adversely affect its serviceability or appearance. 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for inspection. Unless otherwise specified in the contract or puwhase order, the contractor is responsible for the performance of all inspection requirements as spec
33、ified herein. Except as otherwise speci- fied in the contract or order, the contractor may use his own or any other facilities suitable for tfie performance of the inspection requirements speci- fied herein, unless di sapproved by the Government, The Government reserves the right to perform any of t
34、he inpsections set forth in the specification where such inspections are deemed necessary to assure that supplies and services . conform to prescrbed requirements. 4.2 Classification of inspection. Inspection shall be classified as follows: (a) Quality conformance inspection (see 4.3) . (b) Inspecti
35、on of preparation for delivery (see 4.6). 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-RR-W-365A 4.3 Quality conformance inspection. 4.3.1 Unit of product. For purpose of inspection, the unit of product shall be the first 2-foot segment for the
36、entire width of each roll in the sample. 4.3.2 Sampling. Sampling for examination and tests shall be in accordance with MIL-STD-105, inspection level I. 4.3.3 Examination. Samples selected in accordance with 4.3.2 shall be examined as specified in 4.4.1. Acceptable quality level (AQL) shall be 2.5 p
37、ercent defective. 4.3.4 Tests. Samples selected in accordance with 4.3.2 shall be tested as specified in 4.5. AQL shall be 2.5 percent defective. 4.4 Inspection procedure. 4.4.1 Examination. The wire fabric shall be examined for the following defects. 101. Dimensions not as specified (see 3.2). 102.
38、 Continuity not as specified (see 3.2.3). 103. Splices not as specified (see 3.3). 104. Selvage not as specified (see 3.4) . 105. Mesh count not as specified (see 3.5). 106. Workmanship not as specified (see 3.10) . (Certification that wire and zinc conform to composition requirements may be supplie
39、d in lieu of chemical analysis.) 4.5 Tests. 4.5.1 Zinc coating. The thickness (by weight), of the zinc coating shall be determined in accordance with method 512.1 in FED-STD-151. As an alternate method, weight a roll of woven bare steel insect screen cloth before galvanizing and again after galvaniz
40、ing, divide the difference of these weighings by the bare steel weight to determine the percentage of zinc . coating. Nonconformance to thickness (by weight), as specified in 3.7, shall constitute failure of this test. 4.5.2 .Tensile strength. A specimen shall be taken of the type VI1 wire fabric an
41、d shall consist of undistorted wires from two cut edges at right angles to each other so as to include an equal number of warp and filler wires. The wires shall be tested in accordance with ASTM B557. 4.5.3 Chemical analysis. Each sample selected according to 3.6.5, 3.6.6, and 3.6.7 shall be analyze
42、d by the wet method or spectrographic methods according to method 111 or 112, respectively, of FED-STD-151. In case of acceptance (see 3.6). . dispute, chemical analysis by wet chemical methods shall be the basis of Provided by IHSNot for ResaleNo reproduction or networking permitted without license
43、 from IHS-,-,-“ 0004472 O 9 RR-W- 3 6 5A 4.6 Examination of preparation for delivery. An examination shall be made to determine compliance with the requirements of Section 5. The sample unit shall be one shipping container fully prepared for delivery. Sampling shall be in accordance with MIL-STD-105
44、. The inspection level shall be S-2 with an AQL of 4.0 expressed in terms of percent defective. 5. PREPARATION FOR DELIVEW 5.1 Packaqinq. Packaging shall be level A or commercial, as specified (see 6.2 and 6.5). 5.1.1 Level A. The wire fabric shall be tightly rolled without damaging the fabric. Each
45、 roll shall be secured with two evenly spaced bands of reinforced tape conforming to PPP-T-97. 5.1.2. Commercial. 5.1.2.1 Military aqencies. Commercial packaging shall be in accordance with MIL-STD-1188. 5.1.2.2 Civil aqencies. The wire fabric shall be packaged in accordance with normal commercial p
46、ractice. The complete package shall be designed to protect the wire fabric against damage during multiple shipments, handling, and storage. 5.2 Packing. Packing shall be level A, level B, or commercial, as specified (see 6.2 and 6.5). 5.2.1 Level A. The wire fabric, packaged as specified in 5.1, sha
47、ll be packed in close-fitting boxes conforming to PPP-B-621, class 2, or PPP-B-601, QVWS.eaS type:, Gross.weight shall not exceed 200 pounds. The boxes shall be closed and strapped in accordance with the appendix to the applicable box specification. 5.2.2 Level B. The wire fabric, packaged as specif
48、ied in 5.1, shall be packed in close-fitting boxes conforming to PPP-B-636, class w.eatb.er-resistant, or PPP-B-640, class 2. The boxes shall be closed and strapped in accordance with the appendix to the applicable box specification. 5.2.3 Commercial. 5.2.3.1 Military agencies. The wire fabric, pack
49、aged as specified in 5.1, shall be packed in accordance with MIL-STD-1188. 5.23.2 Civil agencies. The wire fabric of like description, packaged as specified in 5.1, shall be packed. in fiberboard boxes to insure delivery at destination; provide for redistribution by the initial receiving activity; and be acceptable by common carrier under National Motor Freight Classification and Uniform Freight Classification. n Provided by IHSNot for
