ASTM G114-06

    Historical Standard: ASTM G114-06 Standard Practices for Evaluating the Age Resistance of Polymeric Materials Used in Oxygen Service

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    ASTM G114

    1. Scope

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

    1.2 These practices address both established methods that have a foundation of experience and potential methods 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.

    1.3 The results of these practices may not give exact correlation with service performance since service conditions vary widely and may involve multiple factors. This practice may be used to evaluate materials on a laboratory comparison basis.

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

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

    1.4.2 Procedure B: Accelerated Aging Comparative Oxygen ResistanceThis 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.

    1.4.3 Procedure C: Accelerated Aging Lifetime PredictionThis procedure is used to determine the relationship between aging temperature and predefined level property change, thereby allowing predictions to be made about the effect of prolonged service on oxidative degradation.

    1.5 The values stated in SI units are to be regarded as the standard, however, all numerical values must also be cited in the systems in which they were actually measured.

    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 10.


    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    D395 Test Methods for Rubber Property--Compression Set

    D412 Test Methods for Vulcanized Rubber and Thermoplastic Elastomers--Tension

    D638 Test Method for Tensile Properties of Plastics

    D1349 Practice for Rubber--Standard Temperatures for Testing

    D1708 Test Method for Tensile Properties of Plastics by Use of Microtensile Specimens

    D2240 Test Method for Rubber Property--Durometer Hardness

    D2512 Test Method for Compatibility of Materials with Liquid Oxygen (Impact Sensitivity Threshold and Pass-Fail Techniques)

    D2863 Test Method for Measuring the Minimum Oxygen Concentration to Support Candle-Like Combustion of Plastics (Oxygen Index)

    D3045 Practice for Heat Aging of Plastics Without Load

    D4809 Test Method for Heat of Combustion of Liquid Hydrocarbon Fuels by Bomb Calorimeter (Precision Method)

    D5510 Practice for Heat Aging of Oxidatively Degradable Plastics

    G63 Guide for Evaluating Nonmetallic Materials for Oxygen Service

    G72 Test Method for Autogenous Ignition Temperature of Liquids and Solids in a High-Pressure Oxygen-Enriched Environment

    G74 Test Method for Ignition Sensitivity of Materials to Gaseous Fluid Impact

    G86 Test Method for Determining Ignition Sensitivity of Materials to Mechanical Impact in Ambient Liquid Oxygen and Pressurized Liquid and Gaseous Oxygen Environments

    G125 Test Method for Measuring Liquid and Solid Material Fire Limits in Gaseous Oxidants

    G126 Terminology Relating to the Compatibility and Sensitivity of Materials in Oxygen Enriched Atmospheres

    Federal Standard

    FederalSpecification Oxygen, Technical, Gas and Liquid Available from Standardization Documents Order Desk, DODSSP, Bldg. 4, Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, http://www.dodssp.daps.mil.


    ICS Code

    ICS Number Code 13.220.40 (Ignitability and burning behaviour of materials and products); 71.100.20 (Gases for industrial application)

    UNSPSC Code

    UNSPSC Code 12141904(Oxygen O)


    DOI: 10.1520/G0114-06

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