ASTM D6095-06

Standard Test Method for Longitudinal Measurement of Volume Resistivity for Extruded Crosslinked and Thermoplastic Semiconducting Conductor and Insulation Shielding Materials

SIGNIFICANCE AND USE
The electrical behavior of semiconducting extruded shielding materials is important for a variety of reasons, such as safety, static charges, and current transmission. This test method is useful in predicting the behavior of such semiconducting compounds. Also see Test Method D 4496.
SCOPE
1.1 This test method covers the procedure for determining the volume resistivity, measured longitudinally, of extruded crosslinked and thermoplastic semiconducting, conductor and insulation shields for wire and cable.
1.2 Whenever two sets of values are presented, in different units, the values in the first set are the standard, while those in parentheses are for information only.
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. For a specific hazard statement, see .
1.3 In common practice the conductor shield is often referred to as the strand shield.
1.4 Technically, this test method is the measurement of a resistance between two electrodes on a single surface and modifying that value using dimensions of the specimen geometry to calculate a resistivity. However, the geometry of the specimen is such as to support the assumption of a current path primarily throughout the volume of the material between the electrodes, thus justifying the use of the term "longitudinal volume resistivity." ( See 3.1.2.1 )

General Information

• Status: Historical
• Publication Date: 31-Mar-2006
• ICS: 29.045 - Semiconducting materials
• ICS: 29.060.01 - Electrical wires and cables in general
• Technical Committee: D09 - Electrical and Electronic Insulating Materials

Relations

• Replaces: ASTM D6095-05 - Standard Test Method for Volume Resistivity for Extruded Crosslinked and Thermoplastic Semiconducting Conductor and Insulation Shielding Materials
• Effective Date: 01-Apr-2006
• Replaced By: ASTM D6095-12 - Standard Test Method for Longitudinal Measurement of Volume Resistivity for Extruded Crosslinked and Thermoplastic Semiconducting Conductor and Insulation Shielding Materials
• Effective Date: 01-Nov-2012
• Referred By: ASTM D3004-08(2020) - Standard Specification for Crosslinked and Thermoplastic Extruded Semi-Conducting, Conductor, and Insulation Shielding Materials
• Effective Date: 01-Apr-2006

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: D6095 − 06 AnAmerican National Standard
Standard Test Method for
Longitudinal Measurement of Volume Resistivity for
Extruded Crosslinked and Thermoplastic Semiconducting
1
Conductor and Insulation Shielding Materials
This standard is issued under the fixed designation D6095; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope* D1711 Terminology Relating to Electrical Insulation
D4496 Test Method for D-C Resistance or Conductance of
1.1 This test method covers the procedure for determining
Moderately Conductive Materials
the volume resistivity, measured longitudinally, of extruded
crosslinked and thermoplastic semiconducting, conductor and
3. Terminology
insulation shields for wire and cable.
3.1 Definitions of Terms Specific to This Standard:
1.2 In common practice the conductor shield is often re-
3.1.1 semiconducting, adj—moderately conductive, see Ter-
ferred to as the strand shield.
minology D1711 and Test Method D4496.
1.3 Technically, this test method is the measurement of a
3.1.2 longitudinal volume resistivity, n—an electrical resis-
resistance between two electrodes on a single surface and
tance multiplied by a factor calculated from the geometry of a
modifying that value using dimensions of the specimen geom-
specimen volume between electrodes in contact with one, and
etry to calculate a resistivity. However, the geometry of the
only one, surface of the specimen.
specimen is such as to support the assumption of a current path
3.1.2.1 Discussion—In normal wire and cable usage, the
primarily throughout the volume of the material between the
longitudinalvolumeresistivityissimplyreferredtoas“volume
electrodes, thus justifying the use of the term “longitudinal
resistivity.” This usage is at variance with terminology in Test
volume resistivity.” (See 3.1.2.1)
Methods D257, Terminology D1711, and Test Method D4496.
1.4 Whenever two sets of values are presented, in different
4. Significance and Use
units, the values in the first set are the standard, while those in
parentheses are for information only.
4.1 The electrical behavior of semiconducting extruded
1.5 This standard does not purport to address all of the shielding materials is important for a variety of reasons, such
as safety, static charges, and current transmission. This test
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro- method is useful in predicting the behavior of such semicon-
ducting compounds. Also see Test Method D4496.
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use. For a specific
5. Apparatus
hazard statement, see 7.1.
5.1 See Test Method D4496 for a description of the
2. Referenced Documents
apparatus, except the electrode system which is described in
2
7.2.
2.1 ASTM Standards:
D257 Test Methods for DC Resistance or Conductance of
6. Sampling and Test Specimens
Insulating Materials
6.1 Take one 2-ft (600-mm) sample from each lot, or from
each 25000 ft (7600 m) of completed cable, whichever is less.
1
This test method is under the jurisdiction of ASTM CommitteeD09 on
6.2 The specimen consists of a 10 in. (250 mm) length of
Electrical and Electronic Insulating Materials and is the direct responsibility of
cable core with all layers external to the semi-conducting
Subcommittee D09.18 on Solid Insulations, Non-Metallic Shieldings and Coverings
for Electrical and Telecommunication Wires and Cables.
insulation shield removed. Use this specimen to test the
Current edition approved April 1, 2006. Published April 2006. Originally
insulation shield. To test the conductor shield, bisect the
approved in 1997. Last previous edition approved in 2005 as D6095–05. DOI:
sample longitudinally and remove the conductor. Use only one
10.1520/D6095-06.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or piece of the conductor shield as the test specimen.
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
6.3 Condition the specimens in accordance with Test
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. Method D4496.
*A Summary of Changes section appears at the end of this standard
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D6095 − 06
6.3.1 If the shielding materials are crosslinked, condition Insulation Shielding:
the cable core (jacket removed) overnight at 50°C to eliminat
...