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ASTM G 114 : 2021

Current
Current

The latest, up-to-date edition.

Standard Practices for Evaluating the Age Resistance of Polymeric Materials Used in Oxygen Service
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

11-11-2021

1.1These practices describe procedures that are used to determine the age resistance of plastic, thermosetting, elastomeric, and polymer matrix composite materials exposed to oxygen-containing media.

1.2While these practices focus on evaluating the age resistance of polymeric materials in oxygen-containing media prior to ignition and combustion testing, they also have relevance for evaluating the age resistance of metals, and nonmetallic oils and greases.

1.3These practices address both established procedures that have a foundation of experience and new procedures that have yet to be validated. The latter are included to promote research and later elaboration in this practice as methods of the former type.

1.4The results of these practices may not give exact correlation with service performance since service conditions vary widely and may involve multiple factors such as those listed in 5.8.

1.5Three procedures are described for evaluating the age resistance of polymeric materials depending on application and information sought.

1.5.1Procedure A: Natural Aging—This procedure is used to simulate the effect(s) of one or more service stressors on a material’s oxygen resistance, and is suitable for evaluating materials that experience continuous or intermittent exposure to elevated temperature during service.

1.5.2Procedure B: Accelerated Aging Comparative Oxygen Resistance—This procedure is suitable for evaluating materials that are used in ambient temperature service, or at a temperature that is otherwise lower than the aging temperature, and is useful for developing oxygen compatibility rankings on a laboratory comparison basis.

1.5.3Procedure C: Accelerated Aging Lifetime Prediction—This procedure is used to determine the relationship between aging temperature and a fixed level of property change, thereby allowing predictions to be made about the effect of prolonged service on oxidative degradation.

1.6Units—The values stated in SI units are to be regarded as the standard; however, all numerical values shall also be cited in the systems in which they were actually measured.

1.7This 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. Specific precautionary statements are given in Section 10.

1.8This 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.

Committee
G 04
DocumentType
Standard Practice
Pages
12
PublisherName
American Society for Testing and Materials
Status
Current
Supersedes

ASTM G 126 : 2016 Standard Terminology Relating to the Compatibility and Sensitivity of Materials in Oxygen Enriched Atmospheres
ASTM G 145 : 2008 : R2016 Standard Guide for Studying Fire Incidents in Oxygen Systems

ASTM G 74 : 2013 : R2021 Standard Test Method for Ignition Sensitivity of Nonmetallic Materials and Components by Gaseous Fluid Impact
ASTM G 94 : 2005 : R2014 Standard Guide for Evaluating Metals for Oxygen Service
ASTM D 2863 : 2023 Standard Test Method for Measuring the Minimum Oxygen Concentration to Support Candle-Like Combustion of Plastics (Oxygen Index)
ASTM G 94 : 2022 Standard Guide for Evaluating Metals for Oxygen Service
ASTM G 63 : 2015 : R2023 Standard Guide for Evaluating Nonmetallic Materials for Oxygen Service
ASTM D 572 : 2023 Standard Test Method for Rubber—Deterioration by Heat and Oxygen
ASTM D 3045 : 2018 Standard Practice for Heat Aging of Plastics Without Load
ASTM D 2863 : 2019 Standard Test Method for Measuring the Minimum Oxygen Concentration to Support Candle-Like Combustion of Plastics (Oxygen Index)
ASTM D 638 : 2014 Standard Test Method for Tensile Properties of Plastics
ASTM G 126 : 2016 : R2023 Standard Terminology Relating to the Compatibility and Sensitivity of Materials in Oxygen Enriched Atmospheres
ASTM G 125 : 2000 : R2015 Standard Test Method for Measuring Liquid and Solid Material Fire Limits in Gaseous Oxidants
ASTM D 2512 : 2017 Standard Test Method for Compatibility of Materials with Liquid Oxygen (Impact Sensitivity Threshold and Pass-Fail Techniques) (Withdrawn 2023)
ASTM D 572 : 2004 : R2019 Standard Test Method for Rubber—Deterioration by Heat and Oxygen
ASTM G 63 : 2015 Standard Guide for Evaluating Nonmetallic Materials for Oxygen Service
ASTM D 638 : 2022 Standard Test Method for Tensile Properties of Plastics
ASTM G 125 : 2000 : R2023 Standard Test Method for Measuring Liquid and Solid Material Fire Limits in Gaseous Oxidants

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