ASTM_D_4097_-_01_2010.pdf

Designation:D409701(Reapproved 2010)An American National StandardStandard Specification forContact-Molded Glass-Fiber-Reinforced Thermoset ResinCorrosion-Resistant Tanks1This standard is issued under the fixed designation D4097;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.This standard has been approved for use by agencies of the U.S.Department of Defense.1.Scope1.1 This specification covers cylindrical tanks fabricated bycontact molding for above-ground vertical installation,tocontain aggressive chemicals at essentially atmosphericpressure,and made of a commercial-grade polyester or vinylester,resin.Included are requirements for materials,properties,design,construction,dimensions,tolerances,workmanship,and appearance.1.2 This specification does not cover the design of vesselsintended for pressure above hydrostatic,vacuum conditions,except as classified herein,or vessels intended for use withliquids heated above their flash points.1.3 The values stated in inch-pound units are to be regardedas standard.The values given in parentheses are provided forinformation purposes only.NOTE1Special design consideration should be given to vesselssubject to superimposed mechanical forces,such as earthquakes,windload,or agitation,to vessels subject to service temperature in excess of180F(82C),and to vessels with unsupported bottoms.NOTE2There is no known ISO equivalent to this standard.1.4 The following safety hazards caveat pertains only to thetest method portion,Section 11,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 establish appropriate safety and healthpractices and determine the applicability of regulatory limita-tions prior to use.2.Referenced Documents2.1 ASTM Standards:2C581 Practice for Determining Chemical Resistance ofThermosetting Resins Used in Glass-Fiber-ReinforcedStructures Intended for Liquid ServiceC582 Specification for Contact-Molded Reinforced Thermo-setting Plastic(RTP)Laminates for Corrosion-ResistantEquipmentD618 Practice for Conditioning Plastics for TestingD638 Test Method for Tensile Properties of PlasticsD790 Test Methods for Flexural Properties of Unreinforcedand Reinforced Plastics and Electrical Insulating Materi-alsD883 Terminology Relating to PlasticsD2150 Specification for Woven Roving Glass Fabric forPolyester-Glass Laminates(Withdrawn 1987)3D2583 Test Method for Indentation Hardness of Rigid Plas-tics by Means of a Barcol ImpressorD2584 Test Method for Ignition Loss of Cured ReinforcedResinsD2996 Specification for Filament-Wound“Fiberglass(Glass-Fiber-Reinforced Thermosetting-Resin)PipeD2997 Specification for Centrifugally Cast“Fiberglass”(Glass-Fiber-Reinforced Thermosetting-Resin)PipeD3892 Practice for Packaging/Packing of PlasticsD4024 Specification for Machine Made“Fiberglass”(Glass-Fiber-Reinforced Thermosetting Resin)FlangesD5421 Specification for Contact Molded“Fiberglass”(Glass-Fiber-Reinforced Thermosetting Resin)FlangesF412 Terminology Relating to Plastic Piping Systems2.2 ANSI Standards:B 16.1 Cast Iron Pipe Flanges and Flanged Fittings,Class25,125,250,and 8004B 16.5 Steel Pipe Flanges,Flanged Valves and Fittings43.Terminology3.1 DefinitionsDefinitions are in accordance with Termi-nologies D883 and F412,unless otherwise indicated.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 Jan.1,2010.Published January 2010.Originallyapproved in 1982.Last previous edition approved in 2001 as D4097-01.DOI:10.1520/D4097-01R10.2For 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.3The last approved version of this historical standard is referenced onwww.astm.org.4Available from American National Standards Institute(ANSI),25 W.43rd St.,4th Floor,New York,NY 10036,http:/www.ansi.org.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 3.2 Definitions of Terms Specific to This Standard:3.2.1contact moldingincludes the“hand lay-up”or acombination of the“hand lay-up”and the“spray-up”manu-facturing processes.4.Classification4.1 Tanks meeting this specification are classified accordingto type.It is the responsibility of the purchaser to specify therequirement for Type II tanks,the operating pressure orvacuum levels,and the safety factor required for externalpressure.Absence of a designation of type required shall implythat Ty