ASTM_D_5421_-_15.pdf

Designation:D542115An American National StandardStandard Specification forContact Molded“Fiberglass”(Glass-Fiber-ReinforcedThermosetting Resin)Flanges1This standard is issued under the fixed designation D5421;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()indicates an editorial change since the last revision or reapproval.1.Scope*1.1 This specification covers circular contact-molded fiber-glass reinforced-thermosetting-resin flanges for use in pipesystems and tank nozzles.Included are requirements formaterials,workmanship,performance,and dimensions.1.2 Flanges(see Fig.1)may be produced as integral flanges,Type A,or flange-on-pipe,Type B.1.3 This specification is based on flange performance anddoes not cover design.1.4 These flanges are designed for use with pipe and tanksthat are manufactured to Specifications D2996,D2997,D3262,D3299,D3517,D3754,and D4097.1.5 Selection of gaskets is not covered in this specification,refer to the manufacturers recommendation.1.6 The values stated in inch-pound units are to be regardedas the standard.The SI units given in parentheses are forinformation only.1.7 The following precautionary caveat pertains only to thetest methods portion,Section 9,of this specification:Thisstandard does not purport to address the safety problems,ifany,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.NOTE1There is no known ISO equivalent to this standard.2.Referenced Documents2.1 ASTM Standards:2C582 Specification for Contact-Molded Reinforced Thermo-setting Plastic(RTP)Laminates for Corrosion-ResistantEquipmentD883 Terminology Relating to PlasticsD1599 Test Method for Resistance to Short-Time HydraulicPressure of Plastic Pipe,Tubing,and FittingsD1600 Terminology forAbbreviated Terms Relating to Plas-ticsD2996 Specification for Filament-Wound“Fiberglass”(Glass-Fiber-Reinforced Thermosetting-Resin)PipeD2997 Specification for Centrifugally Cast“Fiberglass”(Glass-Fiber-Reinforced Thermosetting-Resin)PipeD3262 Specificationfor“Fiberglass”(Glass-Fiber-Reinforced Thermosetting-Resin)Sewer PipeD3299 Specification for Filament-Wound Glass-Fiber-Reinforced Thermoset Resin Corrosion-Resistant TanksD3517 Specificationfor“Fiberglass”(Glass-Fiber-Reinforced Thermosetting-Resin)Pressure PipeD3754 Specificationfor“Fiberglass”(Glass-Fiber-Reinforced Thermosetting-Resin)Sewer and IndustrialPressure PipeD4097 Specification for Contact-Molded Glass-Fiber-Reinforced Thermoset Resin Corrosion-Resistant Tanks2.2 ASME Standards:3B 16.1 Cast Iron Pipe Flanges and Flanged FittingsB 16.5Pipe Flanges and Flanged FittingsB 18.21.1 Type“A”Narrow Washers3.Terminology3.1 Definitions:3.1.1 Definitions are in accordance with Terminology D883.Abbreviations are in accordance with Terminology D1600,unless otherwise indicated.The abbreviation for reinforced-thermosetting-resin pipe is RTRP.3.2 Definitions of Terms Specific to This Standard:3.2.1 contact molding(CM)a method of fabricationwherein the glass fiber reinforcement is applied to the mold inthe form of all chopped-strand mat,or chopped-strand mat andwoven roving,in alternate plies by hand with the resin matrixapplied by brush or roller and the laminate consolidated by aroller.1This specification is under the jurisdiction of ASTM Committee D20 onPlastics and is the direct responsibility of Subcommittee D20.23 on ReinforcedPlastic Piping Systems and Chemical Equipment.Current edition approved May 1,2015.Published June 2015.Originallyapproved in 1993.Last previous edition approve in 2010 as D5421 05(2010).DOI:10.1520/D5421-15.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.3Available from American Society of Mechanical Engineers(ASME),ASMEInternational Headquarters,Two Park Ave.,New York,NY 10016-5990,http:/www.asme.org.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 3.2.2fiberglass pipea tubular product containing glass-fiber reinforcements embedded in or surrounded by curedthermosetting resin;the composite structure may containaggregate,granular or platelet fillers,thixotropic agents,pig-ments or dyes;thermoplastic or thermosetting liners or coat-ings may be included.4.Classification4.1 GeneralThisspecificationcoversreinforced-thermosetting-resin flanges defined by type(method ofmanufacture),grade(generic type of resin),class(pressure endthrust capability),and pressure rating.Flanges complying withthis specification are also given numerical cla