1、Designation:D329614aStandard Specification forFEP-Fluorocarbon Tube1This standard is issued under the fixed designation D3296;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
2、 the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope*1.1 The tubing is intended for electrical,mechanical,chemical,and medical applications manufactured from extru-sion resins made from the copolymer of tetrafluoroethylene and
3、hexafluoropropylene(FEP-fluorocarbon).This specification isfor virgin material only and does not address recycled materialas it is not appropriate for FEP tubing.NOTE1Abbreviations are in accordance with Terminology D1600.NOTE2There is no known ISO eqivalent to this standard.1.2 The values stated in
4、 SI units are to be regarded as thestandard.The values given in parentheses are for informationonly.1.3 The following safety hazards caveat pertains only to thetest methods portion,Section 8,of this specification:Thisstandard does not purport to address all of the safety concerns,if any,associated w
5、ith 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:2D149 Test Method for Dielectric Breakdown Voltage andDielectric Stren
6、gth of Solid Electrical Insulating Materialsat Commercial Power FrequenciesD618 Practice for Conditioning Plastics for TestingD792 Test Methods for Density and Specific Gravity(Rela-tive Density)of Plastics by DisplacementD883 Terminology Relating to PlasticsD1600 Terminology forAbbreviated Terms Re
7、lating to Plas-ticsD1675 Test Methods for Polytetrafluoroethylene TubingD2116 Specification for FEP-Fluorocarbon Molding andExtrusion MaterialsIEEE/ASTM SI 10 American National Standard for Use ofthe International System of Units(SI):The Modern MetricSystem3.Terminology3.1 DefinitionsDefinitions of
8、terms used in this specifica-tion shall be in accordance with Terminology D883.3.2 Definitions of Terms Specific to This Standard:3.2.1 lot,none production run or uniform blend of two ormore production runs.4.Classification4.1 This specification provides for three types of FEP-fluorocarbon tubing di
9、fferentiated by size schedules as follows:4.1.1 Type ITubing based upon the American Wire Gage(AWG)sizes.4.1.2 Type IITubing based upon fractional inch sizes(seeNote 2).4.1.3 Type IIITubing of all other sizes,as agreed by buyerand seller.This type shall conform to the Dimensional Toler-ances for FEP
10、 Tubing,as listed inTable 3.4.2 The types are further differentiated in accordance withincreasing wall thicknesses as follows:4.2.1 Class ATubing having walls tabulated in Table 1listed as light-weight wall.4.2.2 Class CTubing having walls tabulated in Table 1listed as standard wall(see Note 3).4.2.
11、3 Class DTubing having walls tabulated in Table 2listed as chemical tubing.4.2.4 Class ETubing having walls listed as heavy orconforming to the Dimensional Tolerances for FEP Tubing aslisted in Table 3.NOTE3Tubing having electrical internal diameters and wall thicknessdimensions were deleted because
12、 of lack of demand.NOTE4Class B has been deleted because of lack of demand.4.3 A one-line system is used to specify materials in thisspecification.The system uses predefined cells to refer tospecific aspects of this specification,as illustrated as follows:1This specification is under the jurisdictio
13、n of ASTM Committee D20 onPlastics and is the direct responsibility of Subcommittee D20.15 on ThermoplasticMaterials(Section 20.15.12).Current edition approved Aug.1,2014.Published September 2014.Originallyapproved in 1974.Last previous edition approved in 2014 as D3296-14.DOI:10.1520/D3296-14A.2For
14、 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.*A Summary of Changes section appears at the end of this standardCopyr
15、ight ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 TABLE 1 Dimensions and Tolerances for Type I FEP-Fluorocarbon TubingDimensions,mm(in.)AWG SizeInside DiameterWall ThicknessClass AClass CLightweight WallStandard Wallminmaxnomminmaxnomminmax240.5
16、1(0.020)0.69(0.027)0.152(0.006)0.102(0.004)0.203(0.008)0.305(0.012)0.254(0.010)0.356(0.014)220.64(0.025)0.81(0.032)0.152(0.006)0.102(0.004)0.203(0.008)0.305(0.012)0.254(0.010)0.356(0.014)200.81(0.032)1.02(0.040)0.152(0.006)0.102(0.004)0.203(0.008)0.406(0.016)0.330(0.013)0.483(0.019)190.91(0.036)1.12(0.044)0.152(0.006)0.102(0.004)0.203(0.008)0.406(0.016)0.330(0.013)0.483(0.019)181.02(0.040)1.25(0.049)0.152(0.006)0.102(0.004)0.203(0.008)0.406(0.016)0.330(0.013)0.483(0.019)171.14(0.045)1.37(0.054)0