ASTM_D_3295_-_20.pdf

Designation:D329520Standard Specification forPTFE Tubing,Miniature Beading and Spiral Cut Tubing1This standard is issued under the fixed designation D3295;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.Scope*1.1 This specification covers PTFE tubing,miniature bead-ing and spiral cut tubing-manufactured from PTFE resinproduced from dispersion specified in Specification D4895.NOTE1PTFE tube and rod manufactured from resin specified inSpecification D4894 are covered in Specification D1710.1.2 The values stated in SI units are to be regarded asstandard.The inch-pound units given in parentheses are forinformation only.1.3 The following hazard caveat pertains only to the testmethod portion,Section 8,of this specification:This standarddoes not purport to address all of the safety concerns,if any,associated with its use.It is the responsibility of the user of thisstandard to establish appropriate safety,health,and environ-mental practices and determine the applicability of regulatorylimitations prior to use.1.4 As PTFE resin produced from dispersion is not a truethermoplastic material,any reuse for the specification refer-enced above is impossible.However,markets do exist fornon-virgin PTFE as additives and fillers.NOTE2This standard and ISO 13000-1-2 address some of the samesubject matter,but differ in technical content.1.5 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2D618 Practice for Conditioning Plastics for TestingD638 Test Method for Tensile Properties of PlasticsD792 Test Methods for Density and Specific Gravity(Rela-tive Density)of Plastics by DisplacementD883 Terminology Relating to PlasticsD1600 Terminology forAbbreviated Terms Relating to Plas-ticsD1675 Test Methods for Polytetrafluoroethylene TubingD1708 Test Method for Tensile Properties of Plastics by Useof Microtensile SpecimensD1710 Specification for Extruded Polytetrafluoroethylene(PTFE)Rod,Heavy Walled Tubing and Basic ShapesD3892 Practice for Packaging/Packing of PlasticsD4894 Specification for Polytetrafluoroethylene(PTFE)Granular Molding and Ram Extrusion MaterialsD4895 Specification for Polytetrafluoroethylene(PTFE)Resin Produced From Dispersion2.2 ISO Standards:3ISO 13000-1 PlasticsPolytetrafluoroethylene(PTFE)Semi-Finished Products,Part 1:Requirements and Desig-nationISO 13000-2 PlasticsPolytetrafluoroethylene(PTFE)Semi-Finished Products,Part 2:Preparation of Test Speci-mens and Determination of Properties3.Terminology3.1 DefinitionsThe terminology given in TerminologiesD883 and D1600 is applicable to this specification.3.2 Description of Term Specific to This Standard:3.2.1 lota single production run,or a uniform blend of twoor more production runs.4.Classification4.1 This specification provides for five groups of PTFEtubing,miniature beading and spiral cut tubing,differentiatedby size and type.The groups are further subdivided into classesbased on wall thickness.4.1.1 Group 01Tubing based upon the American WireGage(AWG)sizes.4.1.2 Group 02Tubing based upon fractional inch sizes.1This specification is under the jurisdiction of ASTM Committee D20 onPlastics and is the direct responsibility of Subcommittee D20.15 on ThermoplasticMaterials(Section D20.15.12).Current edition approved Dec.1,2020.Published December 2020.Originallyapproved in 1974.Last previous edition approved in 2015 as D3295-15.DOI:10.1520/D3295-20.2For 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 National Standards Institute(ANSI),25 W.43rd St.,4th Floor,New York,NY 10036,http:/www.ansi.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 StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.14.1.3 Group 03Tubing specified by inner diameter andwall thickness in Table 6 referred to as“Custom or Metric.”4.1.4 Group 04Tubing cut to form spiral wrap as in Table7.4.1