ASTM C578-01

    Standard Specification for Rigid, Cellular Polystyrene Thermal Insulation

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    1. Scope

    1.1 This specification covers the types, physical properties, and dimensions of cellular polystyrene intended for use as thermal insulation for temperatures from -65 to +165°F (-53.9 to +73.9°C). This specification does not cover cryogenic applications. Consult the manufacturer for specific recommendations and properties in cryogenic conditions.

    1.2 The use of thermal insulation materials covered by this specification may be regulated by building codes that address fire performance. For some end uses, specifiers should also address the effect of moisture. Guidelines regarding these end use considerations are included in Appendix X1.

    1.3 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are provided 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 and health practices and determine the applicability of regulatory limitations prior to use.


    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

    C165 Test Method for Measuring Compressive Properties of Thermal Insulations

    C168 Terminology Relating to Thermal Insulation

    C177 Test Method for Steady-State Heat Flux Measurements and Thermal Transmission Properties by Means of the Guarded-Hot-Plate Apparatus

    C203 Test Methods for Breaking Load and Flexural Properties of Block-Type Thermal Insulation

    C272 Test Method for Water Absorption of Core Materials for Structural Sandwich Constructions

    C303 Test Method for Dimensions and Density of Preformed Block and Board-Type Thermal Insulation

    C335 Test Method for Steady-State Heat Transfer Properties of Pipe Insulation

    C390 Practice for Sampling and Acceptance of Thermal Insulation Lots

    C518 Test Method for Steady-State Thermal Transmission Properties by Means of the Heat Flow Meter Apparatus

    C550 Test Method for Measuring Trueness and Squareness of Rigid Block and Board Thermal Insulation

    C870 Practice for Conditioning of Thermal Insulating Materials

    C1045 Practice for Calculating Thermal Transmission Properties Under Steady-State Conditions

    C1058 Practice for Selecting Temperatures for Evaluating and Reporting Thermal Properties of Thermal Insulation

    C1114 Test Method for Steady-State Thermal Transmission Properties by Means of the Thin-Heater Apparatus

    C1303 Test Method for Predicting Long-Term Thermal Resistance of Closed-Cell Foam Insulation

    C1363 Test Method for Thermal Performance of Building Materials and Envelope Assemblies by Means of a Hot Box Apparatus

    D1600 Terminology for Abbreviated Terms Relating to Plastics

    D1621 Test Method for Compressive Properties of Rigid Cellular Plastics

    D1622 Test Method for Apparent Density of Rigid Cellular Plastics

    D2126 Test Method for Response of Rigid Cellular Plastics to Thermal and Humid Aging

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

    E84 Test Method for Surface Burning Characteristics of Building Materials

    E96/E96M Test Methods for Water Vapor Transmission of Materials

    E176 Terminology of Fire Standards

    CAN/ULC Standard

    CAN/ULCS770 Standard Test Method for the Determination of Long-Term Thermal Resistance of Closed-Cell Thermal Insulating Foams


    ICS Code

    ICS Number Code 83.100 (Cellular materials); 91.100.60 (Thermal and sound insulating materials)

    UNSPSC Code

    UNSPSC Code 30141500(Thermal insulation)


    DOI: 10.1520/C0578-01

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