1、Designation: D3656 07 D3656/D3656M 13Standard Specification forInsect Screening and Louver Cloth Woven fromVinyl-Coated Glass Yarns1This standard is issued under the fixed designation D3656;D3656/D3656M; the number immediately following the designation indicatesthe year of original adoption or, in t
2、he case of revision, the year of last revision. A number in parentheses indicates the year of lastreapproval. A superscript epsilon () indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.1. Scope1.1 This
3、 specification covers the requirements for vinyl-coated glass yarn insect screening and louver cloth.1.2 This specification is intended to assist ultimate users by designating the sizes and types of these products that are generallyavailable in the industry.1.3 This specification shows the terminolo
4、gy and requirements for:1.3.1 Commercial standard vinyl-coated glass yarn insect screening designed and woven primarily for installation in or on anydwelling, patio, screening enclosure, building, or structure for the purpose of keeping out flies, mosquitoes, and most insects.1.3.2 Vinyl-coated glas
5、s yarn louver cloth used extensively in soffit and louver vents to keep out most large insects, birds, andairborne litter, while at the same time providing for adequate ventilation and air circulation.1.4 This specification shows the values in both SI units and inch-pound units. “SI units” is the te
6、chnically correct name for asystem of metric units known as the International System of Units. “Inch-pound units” is the technically correct name for thecustomary units used in the United States. The values stated in either SI units or inch-pound units are to be regarded separatelyas standard. The v
7、alues stated in inch-pound units are to be regarded as the standard. The value in SI units are provided forinformation only.each system may not be exact equivalents; therefore, each system shall be used independently of the other.Combining values from the two systems may result in non-conformance wi
8、th the standard.1.5 The following precautionary caveat pertains only to the test methods portions, Sections 8-19, of this specification.Thisstandard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the userof this standard to establ
9、ish appropriate safety and health practices and determine the applicability of regulatory limitations priorto use.2. Referenced Documents2.1 ASTM Standards:2D123 Terminology Relating to TextilesD1776 Practice for Conditioning and Testing TextilesD3374 Specification for Vinyl-Coated Glass YarnsD3773
10、Test Methods for Length of Woven FabricD3774 Test Method for Width of Textile FabricD3775 Test Method for Warp (End) and Filling (Pick) Count of Woven FabricsD3776 Test Methods for Mass Per Unit Area (Weight) of FabricD3786 Test Method for Bursting Strength of Textile FabricsDiaphragm Bursting Stren
11、gth Tester MethodD4028 Specification for Solar Screening Woven from Vinyl-Coated Fiber Glass YarnD4372 Specification for Flame-Resistant Materials Used in Camping Tentage (Withdrawn 2002)3D4912 Test Method for Fabric Stability of Vinyl-Coated Glass Yarn Insect Screening and Louver ClothD4929 Test Me
12、thods for Determination of Organic Chloride Content in Crude Oil1 This specification is under the jurisdiction of ASTM Committee D13 on Textiles and is the direct responsibility of Subcommittee D13.18 on Glass Fiber and its Products.Current edition approved Dec. 1, 2007Jan. 1, 2013. Published Januar
13、y 2008 January 2013. Originally approved in 1978. Last previous edition approved in 20042007 asD3656 04.D3656 07. DOI: 10.1520/D3656-07.10.1520/D3656-13.2 For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at serviceastm.org. For Annual Book of ASTM
14、 Standardsvolume information, refer to the standards Document Summary page on the ASTM website.3 The last approved version of this historical standard is referenced on www.astm.org.This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of wha
15、t changes have been made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be considered the
16、 official document.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1D7018 Terminology Relating to Glass Fiber and Its Products2.2 AATCC Standards:4Evaluation Procedure 1, Gray Scale for Color Change2.3 ANSI/ASQC Standards:5ANSI/ASQC Z1
17、.4 Sampling Procedures for Inspection by AttributesANSI/ASQC Z1.9 Sampling Procedures and Tables for Inspection Variables for Percent Nonconforming2.4 Federal Standards:6CCC D-950 Specification, Dyeing and After Treating Processes for Cotton ClothsTest Method Standard No. 191a, Textile Test Methods,
18、 Method 5872 Effect of High Temperature on Cloth BlockingStandard 595A CHG Not 1, Color Volume 12.5 IFAI (Industrial Fabrics Association International)7CPAI-843. Terminology3.1 For all terminology relating to D13.18, Glass Fiber and Its Products, refer to Terminology D7018.3.1.1 The following terms
19、are relevant to this standard: atmosphere for testing textiles, insect screening, louver cloth, mesh.3.2 For all other terms related to textiles, refer to Terminology D123.4. Classification4.1 Vinyl-coated glass yarn insect screening is produced in two basic classes and mesh to afford required stren
20、gth and insectprotection using yarns as directed in Specification D3374. These two classes are as follows:4.1.1 Class 1Insect screening woven from vinyl-coated glass yarn having a nominal thickness of 0.292 mm (0.0115in.).0.0115 in.4.1.2 Class 2Insect screening woven from vinyl-coated glass yarn hav
21、ing a nominal thickness of 0.330 mm (0.013 in.).0.013in.4.2 The mesh, width, and colors are listed in Table 1.4 Available from American Association of Textile Chemists and Colorists, P. O. Box 12215, Research Triangle Park, NC 27709.5 Available from American National Standards Institute (ANSI), 25 W
22、. 43rd St., 4th Floor, New York, NY 10036.6 Available from General Services Administrations, Specification and Consumer Information Distribution Section (WFSIS), Washington Navy Yard, Bldg. 197,Washington, DC 20407.7 Available from Industrial Fabrics Association International, 350 Endicott Bldg., St
23、. Paul, MN 55101.TABLE 1 Generally Available Mesh, Widths, and ColorsProduct Class Nominal Yarn Diameter,m (in.)Standard ConstructionWarp by Fill Mesh/25.4mm (Mesh/1 in.)Standard WidthsColorsmm in.Insect screening 1 292 (0.011) 18 16 610, 762, 813, 914,1067, 1219, 1524,1829, 213424, 30, 32, 36, 42,
24、48,60, 72, 84gray, charcoal2 330 (0.013) 18 14 914, 1219, 1524, 1829,2134, 2438, 274336, 48, 60, 72, 84, 96,108gray, charcoal2 330 (0.013) 18 14 914, 1219, 1829, 2134 36, 48, 72, 84 aqua2 330 (0.013) 20 20 914, 1219, 1524, 1829,213436, 48, 60, 72, 84 gray, charcoalLouver cloth 2 330 (0.013) Less tha
25、n 12 12 152, 203, 305, 610,914, 12196, 8, 12, 24, 36, 48 gray, charcoalTABLE 1 Generally Available Mesh, Widths, and ColorsProduct Class Nominal Yarn Diameter,m in.Standard ConstructionWarp by Fill Mesh/25.4mm Mesh/1 in.Standard WidthsColorsmm in.Insect screening 1 292 0.011 18 16 610, 762, 813, 914
26、,1067, 1219, 1524,1829, 213424, 30, 32, 36, 42, 48,60, 72, 84gray, charcoal2 330 0.013 18 14 914, 1219, 1524, 1829,2134, 2438, 274336, 48, 60, 72, 84, 96,108gray, charcoal2 330 0.013 18 14 914, 1219, 1829, 2134 36, 48, 72, 84 aqua2 330 0.013 20 20 914, 1219, 1524, 1829,213436, 48, 60, 72, 84 gray, c
27、harcoalLouver cloth 2 330 0.013 Less than 12 12 152, 203, 305, 610,914, 12196, 8, 12, 24, 36, 48 gray, charcoalD3656/D3656M 1324.2.1 For vinyl-coated glass yarn insect screening not listed in Table 1, the mesh, width, and colors shall be agreed upon betweenthe purchaser and supplier.5. Sampling and
28、Test Specimens5.1 SamplingOn a continual basis, samples are selected randomly from each mesh and tested to insure compliance, unlessotherwise agreed upon between the purchaser and the supplier.5.2 Test SpecimensFor insect screening or louver cloth appearance, width, and length testing, a roll shall
29、serve as the testspecimen. For other properties, take the test specimen(s) from the roll. No specimen shall be taken closer than 25 mm (1 in.)1in. from the edge or 0.9 m (1 yd)1 yd from the end of the roll.REQUIREMENTS6. General Requirements6.1 Material:6.1.1 WorkmanshipInsect screening or louver cl
30、oth shall be made utilizing input yarns that meet the requirements specifiedin Specification D3374. Products may contain a maximum of one defect in the filling direction affecting less than 50 lineal mm(22 lineal in.).in. Examples of defects are listed in Table 2.6.1.2 PlasticizersThe material used
31、to coat or impregnate the fibrous glass yarn shall be a compound of polymerized orcopolymerized vinyl chloride resin, plasticized with phosphate or phthalate ester plasticizers exclusively, pigmented and stabilizedto meet the requirements herein.6.1.2.1 Optional PlasticizerAt the suppliers option, p
32、lasticizers other than phosphates and phthalates may be used providedthe color is not affected and the coating compound is treated with solubilized copper 8 quinolinolate which is listed as inhibitor(e) in Federal Standard CCC-D-950. The amount of fungicide shall be based on the nonvolatile content
33、of the coating. The coatingcompound shall be chemically analyzed for copper 8 quinolinolate content in accordance with Federal Standard CCC-D-950.6.1.3 ColorThe maximum and minimum shades limits shall be defined by color designations listed in Federal Standard 595Aas agreed upon between the purchase
34、r and supplier.6.1.3.1 The color designated grey shall fall between No. 36492 and No. 36173 as listed in Federal Standard 595A.6.1.4 SelvageVinyl-coated glass insect screening and louver cloth may be supplied with or without selvages as agreedbetween the purchaser and supplier.6.1.5 Yarn SplicesViny
35、l-coated glass yarn splices shall be permitted provided they show no tails and do not exceed 25 mm(1 in.)1 in. in length. Yarn splices in the insect screening or louver cloth shall not exceed 15 per standard 30 m (100 ft)100 ftroll, and no more than one splice shall occur in any 930 cm2 (1 1 ft2) of
36、 product.6.2 Put-UpVinyl-coated glass yarn insect screening and louver cloth shall be put-up on rolls that may be placed in containerswhose dimensions shall be agreed upon between the purchaser and the supplier.7. Physical Requirements7.1 AppearanceUnless otherwise agreed upon between the purchaser
37、and the supplier, a roll shall be defective if it containstwo or more defects as described in 6.1.1.7.2 MeshThe standard average mesh shall be approximately even-spaced as specified in Table 1 60.5 mesh per 25 mm (1in.).1 in. There are no tolerance requirements within 13 mm (0.5 in.)0.5 in. of the s
38、elvage.7.3 Roll LengthEach roll of insect screening or louver cloth complying with Specification D3656 shall contain 30 linear m0, +0.6 m (100100 linear ft 0, +2.1 ft).ft.TABLE 2 Examples of DefectsA,BBias or bowed filling:For widths # 1220 mm (48 in.) $ 13 mm (0.5 in.) Slack or tight selvageA,BFor
39、widths # 1220 mm 48 in. $ 13 mm 0.5 in. Slack or tight selvageA,BFor widths 1220 mm (48 in.) $ 25 mm (1.0 in.) Splicemore than one in a 300 mm2 (1 ft2) areaBFor widths 1220 mm 48 in. $ 25 mm 1.0 in. Splicemore than one in a 300 mm2 1 ft2 areaBBroken or missing strand (end or pick),A,B Splice more th
40、an 25 mm (1 in.) in lengthBBroken or missing strand (end or pick),A,B Splice more than 25 mm 1 in. in lengthBDamaged selvage extending into the body of the screeningB Splice not well made and showing tailsBHeavy strandA,B Spot, stain, or streakA,BJerked-in filling, slough-off, or kinky fillingA,B Th
41、in strandA,BColor bandsB Tight strand (end or pick)A,BUncoated yarnsBA For definitions of terms used in this table, refer to Terminology D123.B At normal inspection distance approximately 900-mm (3 ft).3 ft.D3656/D3656M 1337.4 WidthThe standard average roll width shall be as specified in Table 1 +7
42、or 0 mm (+0.25+0.25 in. or 0 in.).in.7.5 Mass per Unit AreaThe minimum average mass per unit area for each class shall be as specified in Table 3.7.6 Flame ResistanceThere shall be no propagation of flame along any specimen for longer than 10 s after removal of theflame source and no single specimen
43、 may propagate flame along its entire length in any time increment.7.7 Fabric StabilityThe yarns shall be bonded at each contact point. The fabric stability of the finished product shall bedetermined in accordance with Test Method D4912 and meet the requirements as specified in Table 3.7.8 Bursting
44、StrengthThe minimum average bursting strength of the finished product in its original state and after 480 h ofexposure to color stability after accelerated weathering as directed in Section 19 shall be as specified in Table 3.7.9 Stiffness IndexThe minimum and maximum average stiffness values are re
45、ferenced in Table 4.7.10 Color Stability after Accelerated WeatheringThe change from the original color of the standard gray and charcoal, after480 h of accelerated weathering exposure shall be no greater than step 3, and after 960 h of accelerated weathering exposure shallbe no greater than step 2,
46、 on the AATCC Gray Scale for evaluating change in color.NOTE 1Use of other types of weathering apparatus may give weathering characteristics that are not equivalent to the preferred apparatus.7.10.1 Exposure periods and acceptable changes in color other than the standard gray and charcoal shall be a
47、s agreed uponbetween the purchaser and the supplier.7.11 For vinyl-coated glass yarn insect screening and louver cloth not listed in Table 1, the physical properties shall be agreedupon between the purchaser and the supplier except as noted in 6.2.TEST METHODS8. Conditioning8.1 Condition the laborat
48、ory samples without preconditioning for a period of at least 5 h in the atmosphere for testing glasstextiles as directed in Practice D1776, unless otherwise specified.NOTE 2In any event, 24 h is considered ample exposure time to bring the samples to moisture equilibrium.9. Put-Up9.1 Verify that the
49、rolls and shipping containers conform to the inspection agreement in the purchasers plant.TABLE 3 Minimum Sample Average Mass and StrengthPropertiesPropertyInsect Screening Louver ClothClass 1 Class 2 Class 218 16Mesh Mesh/25.4 mm 1in.18 14Mesh Mesh/25.4 mm 1in.20 20Mesh Mesh/25.4 mm 1in.8 8Mesh Mesh/25.4 mm 1in.Mass per unit area,g/m2 (oz/yd2)102 (3.0) 146 (4.3) 176 (5.2) 68 (2.0)Mass per unit area,g/m2 oz/yd2102 3.0 146 4.3 176 5.2 68 2.0Fa
