1、Designation: D 3295 06Standard Specification forPTFE Tubing, Miniature Beading and Spiral Cut Tubing1This standard is issued under the fixed designation D 3295; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revis
2、ion. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.1. Scope*1.1 This specification covers PTFE tubing, miniat
3、ure bead-ing and spiral cut tubing-manufactured from PTFE resinproduced from dispersion specified in Specification D 4895.NOTE 1PTFE tube and rod manufactured from resin specified inSpecification D 4894 are covered in Specification D 1710.1.2 The values stated in SI units are to be regarded asstanda
4、rd. The inch-pound units given in brackets 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
5、of the user of thisstandard to establish appropriate safety and health practicesand determine the applicability of regulatory limitations priorto use.1.4 As PTFE resin produced from dispersion is not a truethermoplastic material, any reuse for the specification refer-enced above is impossible. Howev
6、er, markets do exist fornon-virgin PTFE as additives and fillers.NOTE 2There is currently no published ISO standard relating to thisspecification.2. Referenced Documents2.1 ASTM Standards:2D 618 Practice for Conditioning Plastics for TestingD 638 Test Method for Tensile Properties of PlasticsD 792 T
7、est Methods for Density and Specific Gravity (Rela-tive Density) of Plastics by DisplacementD 883 Terminology Relating to PlasticsD 1600 Terminology for Abbreviated Terms Relating toPlasticsD 1675 Test Methods for Polytetrafluoroethylene TubingD 1708 Test Method for Tensile Properties of Plastics by
8、Use of Microtensile SpecimensD 1710 Specification for Extruded and CompressionMolded Polytetrafluoroethylene (PTFE) Rod and HeavyWalled TubingD 3892 Practice for Packaging/Packing of PlasticsD 4894 Specification for Polytetrafluoroethylene (PTFE)Granular Molding and Ram Extrusion MaterialsD 4895 Spe
9、cification for Polytetrafluoroethylene (PTFE)Resin Produced From Dispersion3. Terminology3.1 Definitions:3.1.1 The terminology given in Terminologies D 883 andD 1600 is applicable to this specification.3.2 Description of Term Specific to This Standard:3.2.1 lota single production run, or a uniform b
10、lend oftwo or 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 Americ
11、an WireGage (AWG) sizes.4.1.2 Group 02Tubing based upon fractional inch sizes.4.1.3 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 Table7.4.1.5 Group 05Miniature beading having diameters asl
12、isted in Table 8.4.2 The types are further differentiated in accordance withincreasing wall thickness as follows:4.2.1 Class 1Tubing having walls tabulated in Table 1listed as light wall.4.2.2 Class 2Tubing having walls of greater thicknessthan Class 1 listed as thin wall.4.2.3 Class 3Tubing having
13、walls tabulated in Table 2listed as standard wall.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 April 1, 2006. Published June 2006. Original
14、lyapproved in 1974. Last previous edition approved in 2001 as D 3295 - 01.2For 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
15、ASTM website.1*A Summary of Changes section appears at the end of this standard.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.4.2.4 Class 4Tubing having walls tabulated in Table 3listed as chemical tubing.4.2.5 Class 5Tubing having
16、walls tabulated in Table 2 andTable 3 listed as heavy wall.4.3 A one-line system may be used to specify materialscovered by this specification. The system uses predefined cellsto refer to specific aspects of this specification, as illustratedbelow.SpecificationStandard Number:Block Group:Class: Grad
17、e:Special NotesExample: SpecificationD32950101 1 24For this example, the line callout would be SpecificationD 3295 01, 01124 and would specify tubing having wallslisted as light wall that has all the properties listed for thatgroup, class and grade in the appropriate specified properties,TABLE 1 Dim
18、ensions and Tolerances for Group 01 PTFE Tubing, mm in. (Classes 1 and 2)AWG SizeGradeInside DiameterClass 1Light Wallmin max nom min max30 0.25 0.010 0.38 0.015 0.15 0.006 0.10 0.004 0.20 0.00828 0.33 0.013 0.46 0.018 0.15 0.006 0.10 0.004 0.20 0.00826 0.41 0.016 0.53 0.021 0.15 0.006 0.10 0.004 0.
19、20 0.00824 0.51 0.020 0.66 0.026 0.15 0.006 0.10 0.004 0.20 0.00822 0.64 0.025 0.81 0.032 0.15 0.006 0.10 0.004 0.20 0.00820 0.81 0.032 1.01 0.040 0.15 0.006 0.10 0.004 0.20 0.00819 0.91 0.036 1.12 0.044 0.15 0.006 0.10 0.004 0.20 0.00818 1.02 0.040 1.25 0.049 0.15 0.006 0.10 0.004 0.20 0.00817 1.14
20、 0.045 1.37 0.054 0.15 0.006 0.10 0.004 0.20 0.00816 1.30 0.051 1.55 0.061 0.15 0.006 0.10 0.004 0.20 0.00815 1.45 0.057 1.70 0.067 0.15 0.006 0.10 0.004 0.20 0.00814 1.65 0.064 1.88 0.074 0.20 0.008 0.15 0.006 0.25 0.01013 1.83 0.072 2.08 0.082 0.20 0.008 0.15 0.006 0.25 0.01012 2.06 0.081 2.31 0.0
21、91 0.20 0.008 0.15 0.006 0.25 0.01011 2.31 0.091 2.57 0.101 0.20 0.008 0.15 0.006 0.25 0.01010 2.59 0.102 2.85 0.112 0.20 0.008 0.15 0.006 0.25 0.0109 2.90 0.114 3.15 0.124 0.20 0.008 0.15 0.006 0.25 0.0108 3.28 0.129 3.58 0.141 0.20 0.008 0.15 0.006 0.25 0.0107 3.66 0.144 4.01 0.158 0.20 0.008 0.15
22、 0.005 0.25 0.0116 4.12 0.162 4.52 0.178 0.25 0.010 0.18 0.007 0.33 0.0135 4.62 0.182 5.03 0.198 0.25 0.010 0.18 0.007 0.33 0.0134 5.18 0.204 5.69 0.224 0.25 0.010 0.18 0.007 0.33 0.0133 5.82 0.229 6.33 0.249 0.25 0.010 0.18 0.007 0.33 0.0132 6.55 0.258 7.06 0.278 0.25 0.010 0.18 0.007 0.33 0.0131 7
23、.34 0.289 7.90 0.311 0.25 0.010 0.18 0.007 0.33 0.0130 8.26 0.325 8.81 0.347 0.25 0.012 0.22 0.009 0.38 0.015AWG SizeGradeInside DiameterClass 2Thin Wallmin max nom min max30 0.25 0.010 0.38 0.015 0.23 0.009 0.19 0.007 0.28 0.01128 0.33 0.013 0.48 0.019 0.23 0.009 0.18 0.007 0.28 0.01126 0.41 0.016
24、0.56 0.022 0.23 0.009 0.18 0.007 0.28 0.01124 0.51 0.020 0.69 0.027 0.25 0.010 0.18 0.007 0.33 0.01322 0.64 0.025 0.81 0.032 0.25 0.010 0.18 0.007 0.33 0.01320 0.81 0.032 1.01 0.040 0.31 0.012 0.23 0.009 0.38 0.01519 0.91 0.036 1.11 0.044 0.31 0.012 0.23 0.009 0.38 0.01518 1.02 0.040 1.25 0.049 0.31
25、 0.012 0.23 0.009 0.38 0.01517 1.14 0.045 1.38 0.054 0.31 0.012 0.23 0.009 0.38 0.01516 1.30 0.051 1.55 0.061 0.31 0.012 0.23 0.009 0.38 0.01515 1.45 0.057 1.70 0.067 0.31 0.012 0.23 0.009 0.38 0.01514 1.63 0.064 1.88 0.074 0.31 0.012 0.23 0.009 0.38 0.01513 1.83 0.072 2.08 0.082 0.31 0.012 0.23 0.0
26、09 0.38 0.01512 2.06 0.081 2.31 0.091 0.31 0.012 0.23 0.009 0.38 0.01511 2.31 0.091 2.57 0.101 0.31 0.012 0.23 0.009 0.38 0.01510 2.59 0.102 2.85 0.112 0.31 0.012 0.23 0.009 0.38 0.0159 2.90 0.114 3.15 0.124 0.38 0.015 0.31 0.012 0.46 0.0188 3.28 0.129 3.58 0.141 0.38 0.015 0.31 0.012 0.46 0.0187 3.
27、66 0.144 4.01 0.158 0.38 0.015 0.31 0.012 0.46 0.0186 4.12 0.162 4.52 0.178 0.38 0.015 0.31 0.012 0.46 0.0185 4.62 0.182 5.03 0.198 0.38 0.015 0.35 0.012 0.46 0.0184 5.18 0.204 5.69 0.224 0.38 0.015 0.35 0.012 0.46 0.0183 5.82 0.229 6.33 0.249 0.38 0.015 0.35 0.012 0.46 0.0182 6.55 0.258 7.06 0.278
28、0.38 0.015 0.35 0.012 0.46 0.0181 7.34 0.289 7.90 0.311 0.38 0.015 0.35 0.012 0.46 0.0180 8.26 0.325 8.81 0.347 0.38 0.015 0.35 0.012 0.46 0.018D3295062tables, or both, in the specification identified. These shall bebased on AWG size within the group and class. Grade will bethe AWG size designation.
29、 Only Groups 01 and 02 shall haverequirements for Class and no separator is needed.5. Physical Properties5.1 The tubing and miniature beading shall be made ofPTFE meeting the requirements of Specification D 4895 andmay contain a maximum of two mass percentage of additive.5.2 The melting point for al
30、l Groups of tubing, and minia-ture beading shall be 327 6 10C 621 6 18F whenmeasured in accordance with 8.1.4.5.3 The inside diameter, wall thickness, pitch and tolerancesof the tubing, miniature beading and spiral cut tubing shall beas shown in Tables 1-3 and Tables 6-8 when determined inaccordance
31、 with 8.1.3.1 and 8.1.3.2.5.4 The specific gravity of the tubing and miniature beadingshall be as specified in Table 4 when determined in accordancewith 8.1.5.5.5 The weight loss of the tubing and miniature beadingshall not exceed 0.05 % when determined in accordance with8.1.6.5.6 The tubing and min
32、iature beading shall have tensileproperties as specified in Table 4 and a minimum elongation of200 % when determined in accordance with 8.1.7.5.7 The tubing shall be a minimum dielectric breakdown asshown in Table 5 when determined in accordance with 8.1.8.TABLE 2 Dimensions and Tolerances for Group
33、 01 PTFE Tubing, mm in. (Classes 3 and 4AWG SizeGradeInside DiameterClass 3Standard Wallmin max nom min max30 0.25 0.010 0.38 0.015 0.23 0.009 0.18 0.007 0.28 0.01128 0.33 0.013 0.48 0.019 0.23 0.009 0.18 0.007 0.28 0.01126 0.41 0.016 0.56 0.022 0.23 0.009 0.18 0.007 0.28 0.01124 0.51 0.020 0.67 0.0
34、27 0.31 0.012 0.25 0.010 0.36 0.01422 0.64 0.025 0.81 0.032 0.31 0.012 0.25 0.010 0.36 0.01420 0.81 0.032 1.02 0.040 0.41 0.016 0.33 0.013 0.48 0.01919 0.91 0.036 1.11 0.044 0.41 0.016 0.33 0.013 0.48 0.01918 1.02 0.040 1.25 0.049 0.41 0.016 0.33 0.013 0.48 0.01917 1.14 0.045 1.37 0.054 0.41 0.016 0
35、.33 0.013 0.48 0.01916 1.30 0.051 1.55 0.061 0.41 0.016 0.33 0.013 0.48 0.01915 1.45 0.057 1.70 0.067 0.41 0.016 0.33 0.013 0.48 0.01914 1.63 0.064 1.88 0.074 0.41 0.016 0.33 0.013 0.48 0.01913 1.83 0.072 2.08 0.082 0.41 0.016 0.33 0.013 0.48 0.01912 2.06 0.081 2.31 0.091 0.41 0.016 0.33 0.013 0.48
36、0.01911 2.31 0.091 2.57 0.101 0.41 0.016 0.33 0.013 0.48 0.01910 2.59 0.102 2.85 0.112 0.41 0.016 0.33 0.013 0.48 0.0199 2.90 0.114 3.15 0.124 0.51 0.020 0.41 0.016 0.61 0.0248 3.28 0.129 3.58 0.141 0.51 0.020 0.41 0.016 0.61 0.0247 3.66 0.144 4.01 0.158 0.51 0.020 0.41 0.016 0.61 0.0246 4.12 0.162
37、4.52 0.178 0.51 0.020 0.41 0.016 0.61 0.0245 4.62 0.182 5.03 0.198 0.51 0.020 0.41 0.016 0.61 0.0244 5.18 0.204 5.69 0.224 0.51 0.020 0.41 0.016 0.61 0.0243 5.82 0.229 6.33 0.249 0.51 0.020 0.41 0.016 0.61 0.0242 6.55 0.258 7.06 0.278 0.51 0.020 0.41 0.016 0.61 0.0241 7.34 0.289 7.90 0.311 0.51 0.02
38、0 0.41 0.016 0.61 0.0240 8.26 0.325 8.81 0.347 0.51 0.020 0.41 0.016 0.61 0.024AWG SizeGradeInside DiameterClass 5Heavy Wallmin max nom min max24 0.51 0.020 0.69 0.027 0.41 0.016 0.33 0.013 0.48 0.01922 0.64 0.025 0.81 0.032 0.41 0.016 0.33 0.013 0.48 0.01920 0.81 0.032 1.02 0.040 0.46 0.018 0.38 0.
39、015 0.53 0.02119 0.91 0.036 1.12 0.044 0.51 0.020 0.41 0.016 0.61 0.02418 1.02 0.040 1.25 0.049 0.51 0.020 0.41 0.016 0.61 0.02417 1.14 0.045 1.37 0.054 0.51 0.020 0.41 0.016 0.61 0.02416 1.30 0.051 1.55 0.061 0.51 0.020 0.41 0.016 0.61 0.02415 1.45 0.057 1.70 0.067 0.51 0.020 0.41 0.016 0.61 0.0241
40、4 1.63 0.064 1.88 0.074 0.51 0.020 0.41 0.016 0.61 0.02413 1.83 0.072 2.08 0.082 0.51 0.020 0.41 0.016 0.61 0.02412 2.06 0.081 2.31 0.091 0.51 0.020 0.41 0.016 0.61 0.02411 2.31 0.091 2.57 0.101 0.51 0.020 0.41 0.016 0.61 0.02410 2.59 0.102 2.85 0.112 0.64 0.025 0.51 0.020 0.76 0.0309 2.90 0.114 3.1
41、5 0.124 0.64 0.025 0.51 0.020 0.76 0.0308 3.28 0.129 3.58 0.141 0.76 0.030 0.64 0.025 0.89 0.0357 3.65 0.144 4.01 0.158 0.76 0.030 0.64 0.025 0.89 0.0356 4.12 0.162 4.52 0.178 0.76 0.030 0.64 0.025 0.89 0.0355 4.62 0.182 5.03 0.198 0.81 0.032 0.69 0.027 0.94 0.037D3295063TABLE 3 Dimensions and Toler
42、ances for Group 02 PTFE Tubing, mm in.FractionalSizesInside Diameter Wall ThicknessClass 1, 2, 3 Class 1 Class 2 Class 3nom min max nom min max nom min max nom min max0.79 132 0.79 0.031 0.740.0310.840.0330.150.0060.100.0040.200.0080.250.0100.200.0080.310.0120.310.0120.250.0100.36 0.0141.6 116 1.7 0
43、.063 1.60.0631.850.0630.200.0080.150.0060.250.0100.310.0120.230.0090.380.0150.410.0160.330.0130.48 0.0192.4 332 2.4 0.094 2.30.0912.50.0990.200.0080.150.0060.250.0100.310.0120.230.0090.380.0150.410.0160.330.0130.48 0.0193.2 18 3.2 0.125 3.10.1203.30.1300.200.0080.150.0060.250.0100.380.0150.280.0110.
44、480.0190.510.0200.400.0160.61 0.0244.8 316 4.7 0.192 4.60.1925.00.1980.250.0100.180.0070.330.0130.380.0150.280.0110.480.0190.510.0200.400.0160.61 0.0246.4 14 6.5 0.255 6.40.2506.60.2600.240.0100.180.0070.330.0130.380.0150.280.0110.480.0190.510.0200.400.0160.61 0.0247.9 516 8.1 0.321 8.00.3138.20.332
45、0.310.0120.230.0090.380.0150.380.0150.280.0110.480.0190.510.0200.400.0160.61 0.0249.5 38 9.7 0.381 9.50.3759.80.3940.380.0150.310.0120.460.0180.380.0150.300.0120.460.0180.640.0250.480.0200.79 0.03011.1 716 11.3 0.451 11.10.43811.70.4580.460.0180.380.0150.530.0210.460.0180.360.0140.560.0220.640.0250.480.0200.79 0.03012.7 12 12.9 0.515 12.70.50013.30.5200.460.0180.380.0150.530.0210.460.0180.360.0140.560.0220.640.0250.480.0200.79 0.03015.9 58 15.2 0.643 15.90.62516.60.6500.070.0200.380.0150.640.0250.510.02
