ASTM D5885-04
(Test Method)Standard Test Method for Oxidative Induction Time of Polyolefin Geosynthetics by High-Pressure Differential Scanning Calorimetry
Standard Test Method for Oxidative Induction Time of Polyolefin Geosynthetics by High-Pressure Differential Scanning Calorimetry
SCOPE
1.1 This test method covers a procedure for the determination of the oxidative induction time (OIT) of polyolefin geosynthetics using high pressure differential scanning calorimetry.
1.2 The focus of the test is on geomembranes, but geogrids, geonets, geotextiles, and other polyolefin-related geosynthetics are also suitable for such evaluation.
1.3 This test method measures the oxidative induction time associated with a given test specimen at a specified temperature and pressure.
1.4 This is an accelerated test for highly stabilized materials. It is applicable only to material whose OIT values under 3.4 MPa of oxygen is greater than 30 min at 150C.
1.5 The values stated in SI units are to be regarded as the standard. The values stated in parentheses are provided 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. Specific precautionary statements are given in Section .
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Designation: D 5885 – 04
Standard Test Method for
Oxidative Induction Time of Polyolefin Geosynthetics by
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High-Pressure Differential Scanning Calorimetry
This standard is issued under the fixed designation D 5885; 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 D 4491 Test Methods for Water Permeability of Geotextiles
by Permittivity
1.1 This test method covers a procedure for the determina-
D 4565 Test Methods for Physical and Environmental Per-
tion of the oxidative induction time (OIT) of polyolefin
formance Properties of Insulations and Jackets for Tele-
geosynthetics using high pressure differential scanning calo-
communications Wire and Cable
rimetry.
D 4703 Practice for Compression Molding Thermoplastic
1.2 The focus of the test is on geomembranes, but geogrids,
Materials into Test Specimens, Plaques, or Sheets
geonets, geotextiles, and other polyolefin-related geosynthetics
E 473 Terminology Relating to Thermal Analysis
are also suitable for such evaluation.
E 967 Practice for Temperature Calibration of Differential
1.3 This test method measures the oxidative induction time
Scanning Calorimeters and Differential ThermalAnalyzers
associatedwithagiventestspecimenataspecifiedtemperature
E 691 Practice for Conducting an Interlaboratory Study to
and pressure.
Determine the Precision of a Test Method
1.4 Thisisanacceleratedtestforhighlystabilizedmaterials.
G88 Guide for Designing Systems for Oxygen Service
It is applicable only to material whose OIT values under 3.4
MPa of oxygen is greater than 30 min at 150°C.
3. Terminology
1.5 The values stated in SI units are to be regarded as the
3.1 Definitions:
standard. The values stated in parentheses are provided for
3.1.1 differential scanning calorimetry (DSC), n—a tech-
information only.
nique in which the difference in heat flow inputs into a
1.6 This standard does not purport to address all of the
substance and a reference material is measured as a function of
safety concerns, if any, associated with its use. It is the
temperatureortime,whilethesubstanceandreferencematerial
responsibility of the user of this standard to establish appro-
are subjected to a controlled-temperature program. (See Ter-
priate safety and health practices and determine the applica-
minology E 473.)
bility of regulatory limitations prior to use. Specific precau-
3.1.2 geomembrane, n—an essentially impermeable geo-
tionary statements are given in Section 8.
synthetic composed of one or more synthetic sheets. (See
2. Referenced Documents Terminology D 4439.)
2 3.1.2.1 Discussion—In this test method, essentially imper-
2.1 ASTM Standards:
meable means that no measurable liquid flows through a
D 3417 TestMethodforHeatsofFusionandCrystallization
geosynthetic when tested in accordance with Test Method
of Polymers by Thermal Analysis
D 4491.
D 3895 Test Method for Oxidative-Induction Time of Poly-
3.1.3 geosynthetic, n—a planar product manufactured from
olefins by Differential Scanning Calorimetry
polymeric material used with soil, rock, earth, or other geo-
D 4439 Terminology for Geosynthetics
technical engineering-related material as an integral part of a
man-made project, structure, or system. (See Terminology
D 4439.)
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This test method is under the jurisdiction of ASTM Committee D35 on
3.1.4 high-pressure differential scanning calorimetry (HP-
Geosynthetics and is the direct responsibility of Subcommittee D35.02 on Endur-
DSC), n—differential scanning calorimetry in which the sub-
ance Properties.
stance and reference material are exposed to a controlled
Current edition approved July 1, 2004. Published July 2004. Originally approved
in 1995. Last previous edition approved in 1997 as D 5885 – 97.
superambient atmosphere.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
3.1.5 index test, n—a test procedure that may be used to
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
establish an order for a set of specimens with respect to the
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. property of interest.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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D5885–04
3.1.6 oxidative induction time (OIT), n—the elapsed time The second is the potential for the influence of chemical
between first exposure to an oxidizing gas and the onset to mechanisms which are not significant at end-use operation
oxidation of a material under isothermal conditions. conditions.
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