ASTM C1668 - 13a

    Standard Specification for Externally Applied Reflective Insulation Systems on Rigid Duct in Heating, Ventilation, and Air Conditioning (HVAC) Systems

    Active Standard ASTM C1668 | Developed by Subcommittee: C16.21

    Book of Standards Volume: 04.06


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    Significance and Use

    1. Scope

    1.1 This specification covers the requirements and physical properties of reflective insulation systems applied externally to Rigid Heating, Ventilation, and Air Conditioning (HVAC) duct systems operating at or below 250ºF (121.1 °C). These insulation systems consist of one or more low-emittance surfaces, such as metallic foil or metallic deposits, mounted on substrates to produce reflective air spaces. Reflective insulation systems derive thermal performance from surfaces with an emittance of no greater than 0.1 facing enclosed air spaces.

    1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

    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 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

    C168 Terminology Relating to Thermal Insulation

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

    C390 Practice for Sampling and Acceptance of Thermal Insulation Lots

    C411 Test Method for Hot-Surface Performance of High-Temperature Thermal Insulation

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

    C1258 Test Method for Elevated Temperature and Humidity Resistance of Vapor Retarders for Insulation

    C1338 Test Method for Determining Fungi Resistance of Insulation Materials and Facings

    C1371 Test Method for Determination of Emittance of Materials Near Room Temperature Using Portable Emissometers

    E84 Test Method for Surface Burning Characteristics of Building Materials

    E96/E96M Test Methods for Water Vapor Transmission of Materials

    E2231 Practice for Specimen Preparation and Mounting of Pipe and Duct Insulation Materials to Assess Surface Burning Characteristics

    Other Test Method

    TAPPIStandardT-512sp Creasing of Flexible Packaging Material Paper Specimens for Testing Available from Technical Association of the Pulp and Paper Industry (TAPPI), 15 Technology Parkway South, Norcross, GA 30092, http://www.tappi.org.


    ICS Code

    ICS Number Code 91.140.30 (Ventilation and air-conditioning systems)

    UNSPSC Code

    UNSPSC Code 30140000(Insulation)


    DOI: 10.1520/C1668

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