ASTM D5885-06
(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 8.
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Designation:D5885 −06
StandardTest 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 D5885; 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 D4565 Test Methods for Physical and Environmental Per-
formance Properties of Insulations and Jackets for Tele-
1.1 This test method covers a procedure for the determina-
communications Wire and Cable
tion of the oxidative induction time (OIT) of polyolefin
D4703 Practice for Compression Molding Thermoplastic
geosynthetics using high pressure differential scanning calo-
Materials into Test Specimens, Plaques, or Sheets
rimetry.
E473 Terminology Relating to Thermal Analysis and Rhe-
1.2 The focus of the test is on geomembranes, but geogrids,
ology
geonets, geotextiles, and other polyolefin-related geosynthetics
E967 Test Method for Temperature Calibration of Differen-
are also suitable for such evaluation.
tial Scanning Calorimeters and Differential Thermal Ana-
lyzers
1.3 This test method measures the oxidative induction time
associatedwithagiventestspecimenataspecifiedtemperature E691 Practice for Conducting an Interlaboratory Study to
Determine the Precision of a Test Method
and pressure.
G88 Guide for Designing Systems for Oxygen Service
1.4 Thisisanacceleratedtestforhighlystabilizedmaterials.
It is applicable only to material whose OIT values under 3.4
3. Terminology
MPa of oxygen is greater than 30 min at 150°C.
3.1 Definitions:
1.5 The values stated in SI units are to be regarded as the
3.1.1 differential scanning calorimetry (DSC), n—a tech-
standard. The values stated in parentheses are provided for
nique in which the difference in heat flow inputs into a
information only.
substance and a reference material is measured as a function of
1.6 This standard does not purport to address all of the
temperatureortime,whilethesubstanceandreferencematerial
safety concerns, if any, associated with its use. It is the
are subjected to a controlled-temperature program. (See Ter-
responsibility of the user of this standard to establish appro-
minology E473.)
priate safety and health practices and determine the applica-
3.1.2 geomembrane, n—anessentiallyimpermeablegeosyn-
bility of regulatory limitations prior to use. Specific precau-
thetic composed of one or more synthetic sheets. (See Termi-
tionary statements are given in Section 8.
nology D4439.)
2. Referenced Documents
3.1.2.1 Discussion—In this test method, essentially imper-
2
meable means that no measurable liquid flows through a
2.1 ASTM Standards:
geosynthetic when tested in accordance with Test Method
D3895 Test Method for Oxidative-Induction Time of Poly-
D4491.
olefins by Differential Scanning Calorimetry
D4439 Terminology for Geosynthetics
3.1.3 geosynthetic, n—a planar product manufactured from
D4491 Test Methods for Water Permeability of Geotextiles polymeric material used with soil, rock, earth, or other geo-
by Permittivity
technical engineering-related material as an integral part of a
man-made project, structure, or system. (See Terminology
D4439.)
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This test method is under the jurisdiction of ASTM Committee D35 on
3.1.4 high-pressure differential scanning calorimetry
Geosynthetics and is the direct responsibility of Subcommittee D35.02 on Endur-
ance Properties.
(HPDSC) , n—differential scanning calorimetry in which the
Current edition approved Oct. 1, 2006. Published November 2006. Originally
substance and reference material are exposed to a controlled
approved in 1995. Last previous edition approved in 2004 as D5885 – 04. DOI:
superambient atmosphere.
10.1520/D5885-06.
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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D5885−06
3.1.6 oxidative induction time (OIT), n— the elapsed time tion of additive packages used to stabilize the test materials.
between first exposure to an oxidizing gas and the onset to The second is the potential for the influence of chemical
oxidation of a material under isothermal conditions. mechanisms which are not significant at end-use operation
3.1.6
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