ASTM D3307-00

Standard Specification for Perfluoroalkoxy (PFA)-Fluorocarbon Resin Molding and Extrusion Materials

SCOPE
1.1 This specification covers melt processable molding and extrusion materials of PFA-perfluoro(alkoxy alkane) fluorocarbon resin. The materials are copolymers of TFE-fluorocarbon resins containing perfluoroalkoxy side chains. These materials were formerly the subject of this specification and Specification D 6314.
1.2 This specification is intended to provide a means for calling out plastic materials used in the fabrication of end items or parts. It is not intended for the selection of materials. Material selection should be made by those having expertise in the plastics field after careful consideration of the design and the performance required of the part, the environment to which it will be exposed, the fabrication process to be employed, the costs involved, and the inherent properties of the material other than those covered by this specification.
1.3 This specification does not cover recycled plastics.
1.4 The tests involved are intended to provide information for identifying the materials covered. It is not the function of this specification to provide engineering data for design purposes. Specimens prepared by injection molding or extrusion could yield test results that may vary from the values in this specification.
1.5 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.6 The following precautionary caveat pertains only to the test methods portions, Sections and of this specification:  This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
Note 1—This specification, ISO 12086-1(1995), and ISO 12086-2(1995) differ in approach or detail. Data obtained using either may not be technically equivalent.

General Information

• Status: Historical
• Publication Date: 09-Dec-2001
• ICS: 83.140.99 - Other rubber and plastics products
• Technical Committee: D20 - Plastics
• Drafting Committee: D20.15 - Thermoplastic Materials

Relations

• Replaced By: ASTM D3307-01 - Standard Specification for Perfluoroalkoxy (PFA)-Fluorocarbon Resin Molding and Extrusion Materials
• Effective Date: 10-Dec-2001
• Referred By: ASTM D4000-23 - Standard Classification System for Specifying Plastic Materials
• Effective Date: 10-Dec-2001
• Referred By: ASTM D6867-19 - Standard Specification for Perfluoroalkoxy (PFA)-Fluoropolymer Tubing
• Effective Date: 10-Dec-2001
• Referred By: ASTM D4967-21 - Standard Guide for Selecting Materials to Be Used for Insulation, Jacketing, and Strength Components in Fiber-Optic Cables
• Effective Date: 10-Dec-2001
• Referred By: ASTM D2902-21 - Standard Specification for Fluoropolymer Resin Heat-Shrinkable Tubing for Electrical Insulation
• Effective Date: 10-Dec-2001
• Referred By: ASTM F1545-15a(2021) - Standard Specification for Plastic-Lined Ferrous Metal Pipe, Fittings, and Flanges
• Effective Date: 10-Dec-2001

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: D 3307 – 00 An American National Standard
Standard Specification for
Perfluoroalkoxy (PFA)-Fluorocarbon Resin Molding and
Extrusion Materials
This standard is issued under the fixed designation D 3307; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript 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 D 792 Test Methods for Density and Specific Gravity (Rela-
tive Density) of Plastics by Displacement
1.1 This specification covers melt processable molding and
D 883 Terminology Relating to Plastics
extrusion materials of PFA-perfluoro(alkoxy alkane) fluorocar-
D 1238 Test Method for Flow Rates of Thermoplastics by
bon resin. The materials are copolymers of TFE-fluorocarbon
Extrusion Plastometer
resins containing perfluoroalkoxy side chains.
D 1505 Test Method for Density of Plastics by the Density-
1.2 This specification does not cover recycled plastics.
Gradient Technique
1.3 The tests involved are intended to provide information
D 1600 Terminology for Abbreviated Terms Relating to
for identifying the materials covered. It is not the function of
Plastics
this specification to provide engineering data for design pur-
D 3892 Practice for Packaging/Packing of Plastics
poses. Specimens prepared by injection molding or extrusion
D 4591 Test Method for Determining Temperatures and
could yield test results that may vary from the values in this
Heats of Transitions of Fluoropolymers by Differential
specification.
Scanning Calorimetry
1.4 The values stated in SI units are to be regarded as the
D 5033 Guide for the Development of Standards Relating to
standard. The values given in parentheses are for information
the Proper Use of Recycled Plastics
only.
E 177 Practice for Use of the Terms Precision and Bias in
1.5 The following precautionary caveat pertains only to the
ASTM Test Methods
test methods portions, Sections 8 and 9 of this specification:
E 691 Practice for Conducting an Interlaboratory Study to
This standard does not purport to address all of the safety
Determine the Precision of a Test Method
concerns, if any, associated with its use. It is the responsibility
IEEE/ASTM SI 10 Standard for Use of the International
of the user of this standard to establish appropriate safety and
System of Units (SI): The Modern Metric System
health practices and determine the applicability of regulatory
2.2 ISO Standards:
limitations prior to use.
ISO 12086–1 Plastics–Fluoropolymer Dispersions and
NOTE 1—This specification, ISO 12086–1(1995), and ISO
Moulding and Extrusion Materials–Part 1
12086–2(1995) differ in approach or detail. Data obtained using either
ISO 12086–2 Plastics–Fluoropolymer Dispersions and
may not be technically equivalent.
Moulding and Extrusion Materials–Part 2
2. Referenced Documents
3. Terminology
2.1 ASTM Standards:
3.1 Definitions—Definitions are in accordance with Termi-
D 150 Test Methods for A-C Loss Characteristics and
nology D 883.
Permittivity (Dielectric Constant) of Solid Electrical Insu-
3.1.1 lot, n—one production run or a uniform blend of two
lating Materials
or more productions runs.
D 618 Practice for Conditioning Plastics and Electrical
Insulating Materials for Testing
4. Classification
D 638 Test Method for Tensile Properties of Plastics
4.1 This specification covers six types of PFA-fluorocarbon
resins supplied in pellet form for molding and extrusion.
4.2 A one-line system may be used to specify materials
This specification is under the jurisdiction of ASTM Committee D20 on
Plastics and is the direct responsibility of Subcommittee D20.15 on Thermoplastic
covered by this specification. The system uses predefined cells
Materials (Section D20.15.12).
Current edition approved Sept. 10, 2000. Published November 2000. Originally
published as D 3307 – 74. Last previous edition D 3307 – 98. Annual Book of ASTM Standards, Vol 08.02.
2 7
As defined in Guide D 5033. Annual Book of ASTM Standards, Vol 08.03.
3 8
As defined in IEEE/ASTM SI 10. Annual Book of ASTM Standards, Vol 14.02.
4 9
Annual Book of ASTM Standards, Vol 10.01. Available from the American National Standards Institute, 11 W. 42nd St., 13th
Annual Book of ASTM Standards, Vol 08.01. Floor, New York, NY 10036.
Copyright © ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, United States.
D 3307
TABLE 2 Detailed Requirements for Molded Specimens
to refer to specific aspects of this specification, as illustrated as
follows: Type I Type II Type III Type IV Type V Type VI
Specification Specific gravity, 23°C
A
(73.4°F):
Standard Number : Type : Grade :Class : Special
min 2.12 2.12 2.12 2.12 2.12 2.12
Block : : : : Notes
max 2.17 2.17 2.17 2.17 2.17 2.17
Tensile strength, min, 23°C
: ::: :
B
(73.4°F):
–––––––––––– ––– ––– ––– –––––
MPa 20.68 25 20.68 22.75 25.51 22.75
Example: Specification D 3307 – 98, I
psi 3000 3625 3000 3300 3700 3300
Elongation, 23°C (73.4°F), 275 300 275 275 260 275
In this standard, the only specifications are type; no grade or
B
min, %
class is required. A comma is used as the separator between the
C
Dielectric constant, max:
standard number and the type. Separators are not needed
10 Hz 2.2 2.2 2.2 2.2 2.2 2.2
10 6
10 Hz 2.2 2.2 2.2 2.2 2.2 2.2
between the type, grade, and class. Provision for special
C
Dissipation factor, max:
notes is included so that other information can be provided
10 0.0003 0.0003 0.0003 0.0003 0.0003 0.0003
when required. An example would be in Specification D 3295
10 0.0005 0.0005 0.0005 0.0005 0.0005 0.0005
where dimensions and tolerances are specified for each AWG A
See 9.5 of this specification.
B
size within type and class. When special notes are used, they See 9.6 of this specification.
C
See 9.7 of this specification.
should be preceded by a comma.
5. General Requirements suitable blanked-out section and thickness to produce the
desired sheet. Use clean aluminum foil, 0.13 to 0.18 mm (0.005
5.1 The materials shall be of uniform composition and so
to 0.007 in.) thick, in contact with the resin. A high temperature
prepared as to conform to the requirements of this specifica-
mold release agent may be sprayed on the aluminum foil to
tion.
help prevent the foil from sticking to the sheet. Use steel
5.2 The materials described in this specification shall be free
molding plates at least 1.0 mm (0.040 in.) thick and of an area
of foreign matter to such a contamination level as may be
adequate to cover the chase.
agreed upon between the purchaser and the seller.
9.1.2 Lay down and smoothly cover one plate with a sheet
6. Detail Requirements of aluminum foil. Place the mold chase on top of this assembly.
Place within the mold chase sufficient molding material to
6.1 The materials covered by this specification shall con-
produce the required sheet in such manner that the polymer
form to the requirements prescribed in Table 1 and Table 2
charge is a mound in the middle of the chase. Place a second
when tested by the procedures specified herein. Table 2 lists
sheet of aluminum foil on top of the granules and add the top
those tests requiring a specimen molded as described in 9.1.
mold plate. Place the assembly in a compression molding press
7. Sampling having platens that have been heated to 380 6 5°C (716 6
10°F).
7.1 Sampling shall be statistically adequate to satisfy the
9.1.3 Bring the press platens to incipient contact with the
requirements of 10.4.
mold assembly. Hold for 2 to 4 min without pressure. Apply
8. Number of Tests
approximately 1 MPa (145 psi) and hold for 1 to 1.5 min. Then
apply 2 to 4 MPa (290 to 580 psi) and hold for 1 to 1.5 min.
8.1 One set of test specimens as prescribed in Section 9
Maintain the press at 380 6 5°C (716 6 10°F) during these
shall be considered sufficient for testing each sample. The
steps. Remove the assembly from the press and place between
average result of the specimens tested shall conform to the
two 20 6 7-mm (0.75 6 0.25-in.) steel plates whose tempera-
requirements of this specification.
ture is less than 40°C (104°F).
9. Test Methods
9.1.4 When the sheet is cool enough to touch (about 50 to
60°C (122 to 140°F)), remove the aluminum foil from the
9.1 Test Specimens:
sheet. (If the sheet is allowed to cool to room temperature, the
9.1.1 Prepare a molded sheet 1.5 6 0.25-mm (0.0606
aluminum foil cannot be pulled free.)
0.010-in.) thick. Use a picture-frame-type chase having a
9.2 Conditioning:
9.2.1 For tests of specific gravity, tensile properties, and
See ASTM Form and Style Manual. electrical properties, condition the molded test specimens in
accordance with Procedure A of Practice D 618 for a period of
TABLE 1 Detail Requirements for Test on Molding and Extrusion at least 4 h prior to test. The other tests require no conditioning.
Materials
9.2.2 Conduct tests at the Standard Laboratory Temperature
Type I Type II Type III Type IV Type V Type VI of 23 6 2°C (73.4 6 3.6°F) for determination of specific
A
gravity, tensile properties, and electrical properties only. Since
Melt flow, g/10min:
min >7 1 >3 >10 1 >3
the resin does not absorb water, the maintenance of constant
max 18 3 7 30 3 10
humidity during testing is not necessary. Conduct tests for melt
B
Melting endotherm peak, 300 300 300 285 285 285
flow rate and melting endotherm under ordinary laboratory
min, °C
A conditions.
See 9.3 of this specification.
B
See 9.4 of this specification. 9.3 Melt Flow Rate—Determine the melt flow rate in
D 3307
accordance with Test Method D 1238, Test Method A or B, tured by a process in statistical control, sampled, tested, and
with a temperature of 372 6 1°C and using a total load, inspected in accordance with this classification system, and
including piston, of 5000 g. The same requirements apply for that the average values for the lot meet the requirements of this
the use of corrosion-resistant alloy for the barrel lining, orifice, specification (line callout).
and piston tip. 10.5 A report of test results shall be furnished when re-
9.4 Melting Endotherm Peak: quested. The report shall consist of results of the lot-acceptance
9.4.1 Determine the melting endotherm peak with a differ- inspection for the shipment and the results of the most recent
ent th
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