ASTM D3012-19
(Test Method)Standard Test Method for Thermal-Oxidative Stability of Polypropylene Using a Specimen Rotator Within an Oven
Standard Test Method for Thermal-Oxidative Stability of Polypropylene Using a Specimen Rotator Within an Oven
SIGNIFICANCE AND USE
5.1 Under the severe conditions of this test method, the specimens undergo degradation at a rate that is dependent upon the thermal endurance of the polypropylene material under examination.
5.2 The thermal level of this test method is considered sufficiently severe to cause failure of commercial grades of heat-stable polypropylene within a reasonable period of time. If desired, lower temperatures can be applied to estimate the performance of polypropylene materials with lower heat stability.
5.3 The technique of specimen rotation described in this test method provides an estimate of the life-temperature relationship of polypropylene. If this test method is conducted at different temperatures on the same material, a more reliable estimate of the life-temperature relationship of polypropylene is determined. This test method can be conducted at several temperatures and the data interpreted through use of the Arrhenius relation, by plotting the logarithms of times to failure against the reciprocals of the temperatures in kelvins (K). Temperatures in the range from 100 to 150°C, with intervals of 10°C, are suggested for this purpose.
5.4 The stability as determined under the prescribed test method is not directly related to the suitability of the compound for a use where different conditions prevail.
5.5 The specimen rotation technique of thermal aging increases the probability that all specimens will be exposed similarly and that the effect of temperature gradients in an oven will be minimized.
SCOPE
1.1 This test method provides a means for estimating the resistance of polypropylene, in molded form, to accelerated aging by heat in the presence of air using a forced draft oven.
1.2 The stability determined by this test method is not directly related to the suitability of the material for use when different environmental conditions prevail and shall not be used to predict performance.
Note 1: The specified thermal levels in this test method are considered sufficiently severe to cause failure of commercial grades of heat-stable polypropylene within a reasonable period of time. If desired, lower temperatures can be applied to estimate the performance of polypropylene with lower heat stabilities.
1.3 The values stated in SI units are to be regarded as the standard. The values in parentheses are for information only.
1.4 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
Note 2: This test method and ISO 4577–1983 are technically similar but different in preparation of test specimens, thickness of test specimen, measurement of the number of air flow changes in the ovens, and the number of air changes per hour required.
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
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Standards Content (Sample)
This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: D3012 − 19
Standard Test Method for
Thermal-Oxidative Stability of Polypropylene Using a
1
Specimen Rotator Within an Oven
This standard is issued under the fixed designation D3012; 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* 2. Referenced Documents
2
2.1 ASTM Standards:
1.1 This test method provides a means for estimating the
D618 Practice for Conditioning Plastics for Testing
resistance of polypropylene, in molded form, to accelerated
D883 Terminology Relating to Plastics
aging by heat in the presence of air using a forced draft oven.
D3641 Practice for Injection Molding Test Specimens of
1.2 The stability determined by this test method is not
Thermoplastic Molding and Extrusion Materials
directly related to the suitability of the material for use when
D4101 Classification System and Basis for Specification for
different environmental conditions prevail and shall not be
Polypropylene Injection and Extrusion Materials
used to predict performance.
D5374 Test Methods for Forced-Convection Laboratory Ov-
ens for Evaluation of Electrical Insulation
NOTE1—Thespecifiedthermallevelsinthistestmethodareconsidered
sufficiently severe to cause failure of commercial grades of heat-stable
E77 Test Method for Inspection and Verification of Ther-
polypropylene within a reasonable period of time. If desired, lower
mometers
temperatures can be applied to estimate the performance of polypropylene
E220 Test Method for Calibration of Thermocouples By
with lower heat stabilities.
Comparison Techniques
1.3 The values stated in SI units are to be regarded as the
E456 Terminology Relating to Quality and Statistics
standard. The values in parentheses are for information only.
E608/E608M Specification for Mineral-Insulated, Metal-
Sheathed Base Metal Thermocouples
1.4 This standard does not purport to address all of the
E644 Test Methods for Testing Industrial Resistance Ther-
safety concerns, if any, associated with its use. It is the
mometers
responsibility of the user of this standard to establish appro-
E691 Practice for Conducting an Interlaboratory Study to
priate safety, health, and environmental practices and deter-
Determine the Precision of a Test Method
mine the applicability of regulatory limitations prior to use.
E1137/E1137M Specification for Industrial Platinum Resis-
NOTE 2—This test method and ISO 4577–1983 are technically similar
tance Thermometers
but different in preparation of test specimens, thickness of test specimen,
E2251 Specification for Liquid-in-Glass ASTM Thermom-
measurement of the number of air flow changes in the ovens, and the
eters with Low-Hazard Precision Liquids
number of air changes per hour required.
E2935 Practice for Conducting Equivalence Testing in
1.5 This international standard was developed in accor-
Laboratory Applications
dance with internationally recognized principles on standard-
3
ization established in the Decision on Principles for the
2.2 ISO Standard:
Development of International Standards, Guides and Recom- ISO 4577–1983 Plastics—Polypropylene and Propylene
mendations issued by the World Trade Organization Technical Copolymers—Determination of Thermal Oxidative Sta-
Barriers to Trade (TBT) Committee. bility in Air-Oven Method
1 2
This test method is under the jurisdiction ofASTM Committee D20 on Plastics For referenced ASTM standards, visit the ASTM website, www.astm.org, or
and is the direct responsibility of Subcommittee D20.15 on Thermoplastic Materi- contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
als. Standards volume information, refer to the standard’s Document Summary page on
Current edition approved April 1, 2019. Published May 2019. Originally the ASTM website.
3
approved in 1972. Last previous edition approved in 2013 as D3012 - 13. DOI: Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
10.1520/D3012-19. 4th Floor, New York, NY 10036, http://www.ansi.org.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
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D3012 − 19
ISO 19069 Plastics—Polypropylene (PP) Moulding and Ex- 5.4 The stability as determined under the prescribed test
trusion Materials: methodisnotdirectlyrelatedtothesuitabilityofthecompound
Part 1: Designation System and Basis for Sp
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: D3012 − 13 D3012 − 19
Standard Test Method for
Thermal-Oxidative Stability of Polypropylene Using a
1
Specimen Rotator Within an Oven
This standard is issued under the fixed designation D3012; 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*
1.1 This test method provides a means for estimating the resistance of polypropylene, in molded form, to accelerated aging by
heat in the presence of air using a forced draft oven.
1.2 The stability determined by this test method is not directly related to the suitability of the material for use when different
environmental conditions prevail and shall not be used to predict performance.
NOTE 1—The specified thermal levels in this test method are considered sufficiently severe to cause failure of commercial grades of heat-stable
polypropylene within a reasonable period of time. If desired, lower temperatures can be applied to estimate the performance of polypropylene with lower
heat stabilities.
1.3 The values stated in SI units are to be regarded as the standard. The values in parentheses are for information only.
1.4 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 safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use.
NOTE 2—This test method and ISO 4577–1983 are technically similar but different in preparation of test specimens, thickness of test specimen,
measurement of the number of air flow changes in the ovens, and the number of air changes per hour required.
1.5 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2
2.1 ASTM Standards:
D618 Practice for Conditioning Plastics for Testing
D883 Terminology Relating to Plastics
D3641 Practice for Injection Molding Test Specimens of Thermoplastic Molding and Extrusion Materials
D4101 Classification System and Basis for Specification for Polypropylene Injection and Extrusion Materials
D5374 Test Methods for Forced-Convection Laboratory Ovens for Evaluation of Electrical Insulation
E77 Test Method for Inspection and Verification of Thermometers
E220 Test Method for Calibration of Thermocouples By Comparison Techniques
E456 Terminology Relating to Quality and Statistics
E608E608/E608M Specification for Mineral-Insulated, Metal-Sheathed Base Metal Thermocouples
E644 Test Methods for Testing Industrial Resistance Thermometers
E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
E1137/E1137M Specification for Industrial Platinum Resistance Thermometers
E2251 Specification for Liquid-in-Glass ASTM Thermometers with Low-Hazard Precision Liquids
E2935 Practice for Conducting Equivalence Testing in Laboratory Applications
3
2.2 ISO Standard:
ISO 4577–1983 Plastics—Polypropylene and Propylene Copolymers—Determination of Thermal Oxidative Stability in
Air-Oven Method
1
This test method is under the jurisdiction of ASTM Committee D20 on Plastics and is the direct responsibility of Subcommittee D20.15 on Thermoplastic Materials.
Current edition approved April 1, 2013April 1, 2019. Published April 2013May 2019. Originally approved in 1972. Last previous edition approved in 20072013 as
D3012 - 07.D3012 - 13. DOI: 10.1520/D3012-13.10.1520/D3012-19.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036.10036, http://www.ansi.org.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D3012 − 19
ISO 187319069 Plastics—Polypropyl
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