ASTM_D_4357_-_96.pdf

Designation:D 4357 96Standard Specification forPlastic Laminates Made from Woven-Roving and Woven-Yarn Glass Fabrics1This standard is issued under the fixed designation D 4357;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon(e)indicates an editorial change since the last revision or reapproval.1.Scope1.1 This specification covers standard plastic laminates,their testing,and minimum property requirements,for thequalification of materials used to manufacture structural,semi-structural,or electrical composites of fiberglass woven-rovingand woven-yarn fabrics.It covers,in part,plastic laminatesdesigned for printed-circuit boards,which are specified inMIL-P-13949.It does not cover glass-reinforced plastic lami-nates for armor,which are specified in MIL-A-46166 and thecompanion MIL-A-46165 on input woven-roving glass fabric.NOTE1Companion ASTM specifications on the input woven-rovingglass fabrics and woven-glass fabrics are included in Section 2.NOTE2This specification is one of a series to provide a replacementfor ASTM Specification D 2150 and Military Specifications MIL-Y-1140and MIL-C-19663.NOTE3This specification may replace Military Specification MIL-C-9084 upon further examination as to the utility of Specification D 4357 inmilitary procurement.1.2 The following precautionary caveat pertains only to thetest method portion,Section 8,of the 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 establish appropriate safety and healthpractices and determine the applicability of regulatory limita-tions prior to use.NOTE4There is no similar or equivalent ISO standard.2.Referenced Documents2.1 ASTM Standards:D 123 Terminology Relating to Textiles2D 150 Test Methods for A-C Loss Characteristics andPermittivity(Dielectric Constant)of Solid Electrical Insu-lating Materials3D 618 Practice for Conditioning Plastics for Testing4D 638 Test Method for Tensile Properties of Plastics4D 790 Test Methods for Flexural Properties of Unreinforcedand Reinforced Plastics and Electrical Insulating Materi-als4D 883 Terminology Relating to Plastics4D 2150 Specification for Woven Roving Glass Fabric forPolyester-Glass Laminates5D 2584 Test Method for Ignition Loss of Cured ReinforcedResins6D 4029 Specification for Finished Woven Glass Fabrics7D 4389 Specification for Finished Glass Fabrics Wovenfrom Rovings72.2Military Specifications:8MIL-A-46165 Armor:Woven Glass Roving FabricsMIL-A-46166 Plastic Laminates,Glass Reinforced(ForUse in Armor Composites)MIL-C-9084 Cloth,Glass,Finished,for Resin LaminatesMIL-C-19663 Cloth,Woven Roving,for Plastic LaminatesMIL-C-9084CMIL-P-13949 Plastic Sheet,Laminated,Metal Clad(forPrinted Wiring Boards),General Specification forMIL-Y-1140 Yarn,Cord,Sleeving,Cloth,and Tape-Glass2.3Military Standard:8MIL-STD-105 Sampling Procedures for Inspection by At-tributes2.4This plastic laminate specification will provide asubstitute for the following military specifications:MIL-R-7575 Resin,Polyester,Low Pressure LaminatingMIL-R-9299 Resin,Phenolic,LaminatingMIL-R-9300 Resin,Epoxy,Low Pressure LaminatingMIL-P-13949 Plastic Sheet,Laminated,Metal Clad(forPrinted Writing Boards),General Specification forMIL-R-21607 Resin,Polyester,Low Pressure Laminating,Fire RetardantMIL-R-25506 Resin,Silicone,Low Pressure Laminating3.Terminology3.1 Definitions:3.1.1 fabric,woven,na planar structure produced by1This specification is under the jurisdiction of ASTM Committee D-20 onPlastics and is the direct responsibility of Subcommittee D20.18 on ReinforcedThermosetting Plastics.Current edition approved Nov.10,1996.Published May 1997.Originallypublished as D 4357 84.Last previous edition D 4357 85(1990).2Annual Book of ASTM Standards,Vol 07.01.3Annual Book of ASTM Standards,Vol 10.01.4Annual Book of ASTM Standards,Vol 08.01.5Discontinued,see 1986 Annual Book of ASTM Standards,Vol 08.02.6Annual Book of ASTM Standards,Vol 08.02.7Annual Book of ASTM Standards,Vol 07.02.8Available from Standardization Documents Order Desk,Bldg.4 Section D,700Robbins Ave.,Philadelphia,PA 19111-5094,Attn:NPODS.1Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959,United States.interlacing two or more sets of rovings or yarns where theelements pass each other essentially at right angles and one setis parallel to the fabric axis(warp)and the other set isperpendicular to the axis(filling).3.1.2 roving,na multiplicity of continuous fibers or fila-ments coated with a suitable sizing system and gatheredtogether into an approximate parallel arrangement with little orno twist.The filaments may or may not be grounded intointermediate strands.3.1.3 strand,nan ordered,parallel assemblage of textilefibers having a high ratio of length to diame