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ASTM D3012-07

(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
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.
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.
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.
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.
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 brackets 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.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.
1.4 The purpose of this appendix is to provide a secondary method for determining the number of air exchanges that occur within the forced draft oven used for measurement of thermal oxidative stability.

General Information

Status
Historical
Publication Date
28-Feb-2007
ICS
83.080.20 - Thermoplastic materials
Technical Committee
D20 - Plastics
Drafting Committee
D20.15 - Thermoplastic Materials
Current Stage
Ref Project

Relations

Replaces
ASTM D3012-04 - Standard Test Method for Thermal-Oxidative Stability of Propylene Plastics Using a Specimen Rotator Within an Oven
Effective Date
01-Mar-2007
Referred By
ASTM D4000-23 - Standard Classification System for Specifying Plastic Materials
Effective Date
01-Mar-2007
Referred By
ASTM D4101-17e1 - Standard Classification System and Basis for Specification for Polypropylene Injection and Extrusion Materials
Effective Date
01-Mar-2007

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ASTM D3012-07 - Standard Test Method for Thermal-Oxidative Stability of Polypropylene Using a Specimen Rotator Within an OvenASTM D3012-07 - Standard Test Method for Thermal-Oxidative Stability of Polypropylene Using a Specimen Rotator Within an Oven
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ASTM D3012-07 - Standard Test Method for Thermal-Oxidative Stability of Polypropylene Using a Specimen Rotator Within an Oven
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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: D3012 − 07
StandardTest 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* D5374 Test Methods for Forced-Convection Laboratory Ov-
ens for Evaluation of Electrical Insulation
1.1 This test method provides a means for estimating the
E77 Test Method for Inspection and Verification of Ther-
resistance of polypropylene, in molded form, to accelerated
mometers
aging by heat in the presence of air using a forced draft oven.
E220 Test Method for Calibration of Thermocouples By
1.2 The stability determined by this test method is not
Comparison Techniques
directly related to the suitability of the material for use when
E608 Specification for Mineral-Insulated, Metal-Sheathed
different environmental conditions prevail and shall not be
Base Metal Thermocouples
used to predict performance.
E644 Test Methods for Testing Industrial Resistance Ther-
mometers
NOTE1—Thespecifiedthermallevelsinthistestmethodareconsidered
sufficiently severe to cause failure of commercial grades of heat-stable
E691 Practice for Conducting an Interlaboratory Study to
polypropylene within a reasonable period of time. If desired, lower
Determine the Precision of a Test Method
temperatures can be applied to estimate the performance of polypropylene
E1137/E1137M Specification for Industrial Platinum Resis-
with lower heat stabilities.
tance Thermometers
1.3 The values stated in SI units are to be regarded as the
E2251 Specification for Liquid-in-Glass ASTM Thermom-
standard. The values in brackets are for information only.
eters with Low-Hazard Precision Liquids
3
1.4 This standard does not purport to address all of the
2.2 ISO Standard:
safety concerns, if any, associated with its use. It is the
ISO 4577–1983 Plastics—Polypropylene and Propylene
responsibility of the user of this standard to establish appro-
Copolymers—Determination of Thermal Oxidative Sta-
priate safety and health practices and determine the applica-
bility in Air-Oven Method
bility of regulatory limitations prior to use.
ISO 1873 Plastics—Polypropylene and Propylene-
Copolymer Thermoplastics:
NOTE 2—This test method and ISO 4577–1983 are technically similar
but different in preparation of test specimens, thickness of test specimen, Part 1: Designation
measurement of the number of air flow changes in the ovens, and the
Part 2: Determination of Properties
number of air changes per hour required.
3. Terminology
2. Referenced Documents
2
3.1 Definitions—The definitions of plastics used in this test
2.1 ASTM Standards:
method are in accordance with Terminology D883 unless
D618 Practice for Conditioning Plastics for Testing
otherwise indicated.
D883 Terminology Relating to Plastics
D3641 Practice for Injection Molding Test Specimens of
4. Summary of Test Method
Thermoplastic Molding and Extrusion Materials
D4101 Specification for Polypropylene Injection and Extru- 4.1 Aging is accelerated by exposing the specimens to an
sion Materials elevated temperature in a forced draft oven equipped with a
biaxial or uniaxial rotating specimen holder.
1
This test method is under the jurisdiction ofASTM Committee D20 on Plastics
4.2 Visual examination is used to determine the time to
and is the direct responsibility of Subcommittee D20.15 on Thermoplastic Materi-
failure. The time to failure of the material is taken as the
als.
number of days after which the specimen shows localized
Current edition approved March 1, 2007. Published March 2007. Originally
approved in 1972. Last previous edition approved in 2004 as D3012 - 04. DOI:
crazing, crumbling, or discoloration, or a combination thereof.
10.1520/D3012-07.
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
3
Standards volume information, refer to the standard’s Document Summary page on Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
the ASTM website. 4th Floor, New York, NY 10036.
*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 − 07
5. Significance and Use 6.2.4 Resistance thermometers shall comply with the re-
quirements of Test Methods E644 and Specification E1137/
5.1 Under the severe conditions of this test method, the
E1137M, and be calibrated in
...

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This guide identifies the standard test methods to use in evaluating unsintered extruded films or tapes manufactured from polytetrafluoroethylene (PTFE). The test methods covered here shall be capable of investigating the following material properties: width; thickness; tensile properties (tensile strength and elongation); specificat gravity (relative density); residual extrusion aids or other volatile components; dielectric constant; volume resistivity; dielectric breakdown voltage; and unit weight.
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ASTM D2561-17(2023)(Test Method)
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5.1 When properly used, these procedures serve to isolate such factors as material, blow-molding conditions, post-treatment, and so forth, on the stress-crack resistance of the container.  
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SCOPE
1.1 Under certain conditions of stress, and in the presence of environments such as soaps, wetting agents, oils, or detergents, blow-molded polyethylene containers exhibit mechanical failure by cracking at stresses appreciably below those that would cause cracking in the absence of these environments.  
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1.2.2 Procedure B, Stress-Crack Resistance of a Specific Container to Polyoxyethylated Nonylphenol (CAS 68412-54-4), a Stress-Cracking Agent—The conditions of test described in this procedure are designed for testing containers made from Class 3 polyethylene Specification D4976. Therefore, this procedure is recommended for containers made from Class 3 polyethylene only. This procedure is particularly useful for determining the effect of resin on the stress-crack resistance of the container.  
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1.1 This specification covers poly(ether ketone ketone) materials, commonly referred to as PEKK, which are suitable for molding, extrusion, composites, powder coating and additive manufacturing. Only materials in this Class 6-8 are covered by this specification. This classification system provides requirements for the use of regrind or reprocessed materials.  
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5.1 The quantity of volatile components in a vinyl chloride resin can be established by this test method. This test method does not identify the components.
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1.1 This test method covers the quantitative determination of the volatile matter (including water) present in vinyl chloride resins.  
1.2 The values stated in SI units are to be regarded as standard.  
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Note 1: This test method is identical ISO 1269.  
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This classification system covers melt processible molding, extrusion, and coating materials of ethylene-chlorotrifluoroethylene (E-CTFE) fluoroplastics. The resin is a copolymer of ethylene and chlorotrifluoroethylene. The classification of ECTFE materials into groups in accordance with their physical appearance, and further into classes based on melt flow rate, is provided. The test specimens shall be subjected to tests to determine their melt flow rate, melting endotherm peak, specific gravity, tensile property, dielectric constant and dissipation factor, and oxygen index.
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1.3 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 1: Test Method A is equivalent to ISO 3219. Test Method B is equivalent to ISO 3104.  
1.4 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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