ASTM D6040-96

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Designation: D 6040 – 96
AMERICAN SOCIETY FOR TESTING AND MATERIALS
100 Barr Harbor Dr., West Conshohocken, PA 19428
Reprinted from the Annual Book of ASTM Standards. Copyright ASTM
Standard Guide to
Standard Test Methods for Unsintered
Polytetrafluoroethylene (PTFE) Extruded Film or Tape
This standard is issued under the fixed designation D 6040; 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.
1. Scope F 335 Terminology Related to Electrostatic Copying
F 412 Terminology Related to Plastic Piping Systems
1.1 This guide identifies test methods to use in evaluating
2.2 ISO Standard:
unsintered extruded films or tapes manufactured from polytet-
ISO 12086-2:1995 Plastics—Fluoropolymer Dispersions
rafluoroethylene.
and Moulding and Extrusion Materials—Part 2: Prepara-
1.2 The values stated in SI units and are to be regarded as
tion of Test Specimens and Determination of Properties
the standard. The values given in parentheses are for informa-
tion only.
3. Terminology
1.3 This standard does not purport to address all of the
3.1 Definitions: Definitions are in accordance with Test
safety concerns, if any, associated with its use. It is the
Methods D 257 and Terminologies D 883 and D 1711, unless
responsibility of the user of this standard to establish appro-
otherwise specified.
priate safety and health practices and determine the applica-
3.1.1 apparent density, n—the weight per unit volume of a
bility of regulatory limitations prior to use.
material including voids inherent in the material as tested, see
NOTE 1—There is no ISO standard that covers all of the information
Terminology F 412.
included in this guide. A few of these test methods are mentioned in ISO
3.2 Definitions of Terms Specific to This Standard:
12086-2:1995.
3.2.1 film, n—full-width material received as finished film.
3.2.2 lot, n—all tapes that are part of one manufacturer’s
2. Referenced Documents
production made from the same nominal raw material under
2.1 ASTM Standards:
essentially the same conditions and designed to meet the same
D 149 Test Methods for Dielectric Breakdown Voltage and
specifications.
Dielectric Strength of Solid Electrical Insulating Materials
3.2.3 tape, n—material that has been slit from the finished
at Commercial Power Frequencies
film.
D 150 Test Methods for A-C Loss Characteristics and
3.2.4 volume resistivity, n—the volume resistance (in ohm-
Permittivity (Dielectric Constant) of Solid Electrical Insu-
2 centimetres) between opposite faces of a material where the
lating Materials
values are obtained by the measure of resistance to electrical
D 257 Test Methods for D-C Resistance or Conductance of
2 current between electrodes placed in contact with the opposing
Insulating Materials
surfaces of the sample (see Terminology F 335).
D 374 Test Methods for Thickness of Solid Electrical Insu-
lation
4. Test Specimens
D 792 Test Methods for Density and Specific Gravity (Rela-
4.1 The number of test specimens shall be in accordance
tive Density) of Plastics by Displacement
with the requirements of the individual test methods.
D 882 Test Methods for Tensile Properties of Thin Plastic
Sheeting
5. Conditioning
D 883 Terminology Relating to Plastics
5.1 Condition the tape for 4 h and conduct tests at the
D 1711 Terminology Relating to Electrical Insulation
standard laboratory temperature of 23 6 2°C (73.4 6 3.6°F),
D 2288 Test Method for Weight Loss of Plasticizers on
unless otherwise specified in the test methods or required in a
Heating
specification. Since the tape or film does not absorb water, the
D 3776 Test Methods for Mass per Unit Area (Weight) of
maintenance of constant humidity during testing is not impor-
Woven Fabric
tant.
This guide is under the jurisdiction of ASTM Committee D-20 on Plastics and
is the direct responsibility of Subcommittee D20.15 on Thermoplastic Materials.
Current edition approved Dec. 10, 1996. Published February 1997. Annual Book of ASTM Standards, Vol 15.09.
2 6
Annual Book of ASTM Standards, Vol 10.01. Annual Book of ASTM Standards, Vol 08.04.
3 7
Annual Book of ASTM Standards, Vol 08.01. Available from American National Standards Institute, 11 W. 42nd St., 13th
Annual Book of ASTM Standards, Vol 07.02. Floor, New York, NY 10036.
D 6040
6. Width
V 5 volume of specimen, cm .
6.1 Determine width measurements using a steel scale
9.2 Test one specimen for each lot.
having divisions at a minimum of 0.5-mm ( ⁄64-in.) intervals.
6.2 Test at least one specimen from each lot.
10. Residual Extrusion Aids or Other Volatile
6.3 Each test specimen shall be approximately 450 mm (18
Components
in.) in length. Place the specimens on a hard smooth surface.
10.1 Determine the percentage of volatile material in accor-
Measure the width perpendicular to the edge of the steel scale,
dance with Test Me
...