STP660

    Does the Insulation Have a Thermal Conductivity? The Revised ASTM Test Standards Require an Answer

    Published: Jan 1978


      Format Pages Price  
    PDF Version (164K) 11 $25   ADD TO CART
    Complete Source PDF (6.1M) 11 $136   ADD TO CART


    Abstract

    An improved understanding of the heat flow processes in thermal insulations has mandated a conceptual revision of the basic ASTM test methods [ASTM Standard Test Method for Steady-State Thermal Transmission Properties by Means of the Guarded Hot Plate (C 177-76), ASTM Book of Standards, Part 18, and ASTM Standard Test Method for Steady-State Thermal Transmission Properties by Means of the Heat Flow Meter (C 518-76), ASTM Book of Standards, Part 18] applicable to heat transmission through thermal insulations. The test methods as previously written allowed almost exclusively the measurement of thermal conductivity, a property which thermal insulations, for the most part, do not have. The author discusses the factors which have prompted the change.

    Keywords:

    test data, thermal conductivity, thermal performance, insulations, thermal, infrared radiation, thickness effects, temperature effects, heat flow mechanisms


    Author Information:

    Pelanne, CM
    Senior research specialist, Johns-Manville Research and Development Center, Denver, Colo.


    Paper ID: STP35736S

    Committee/Subcommittee: C16.30

    DOI: 10.1520/STP35736S


    CrossRef ASTM International is a member of CrossRef.