STP718: Settled Density of Wood Fiber (Cellulose Based) Loose-Fill Thermal Insulation Using the CS-204 Method

    Derbyshire, B
    Technical service manager, Thermtron Products, Inc., Fort Wayne, Ind.

    Pages: 9    Published: Jan 1980


    Abstract

    An evaluation has been made of the Custom Scientific Instruments Model CS-204 density method in comparison with the ASTM Test for Density of Fibrous Loose Fill Building Insulations (C 519-65), and the 28-day, drop-box, humidity-cycling method in Federal Specification “Insulation Thermal (Loose Fill for Pneumatic or Poured Application): Cellulosic or Wood Fiber” (HH-I-515d).

    The evaluation was done on cellulosic materials where the installed density was measured on material removed from structures previously insulated for more than a two-year period, and on newly manufactured materials.

    Reproducibility of CS-204 as a laboratory method was verified by a series of interlaboratory “round robins.” CS-204 has been found to be an accurate, rapid method for determining settled density of wood fiber (cellulosic based) loose-fill insulation.

    The report discusses the research process, results, and application of the final method to the cellulosic loose-fill insulation industry.

    This presentation is a synopsis of a two-year study on a settled-density test method for loose-fill wood fiber (cellulosic based) thermal insulation. The detailed work this paper is based upon is available at present from the author.

    Keywords:

    density measurement, settling, cellulose, wood fiber, thermal insulation, heat transmission, thermal resistance, thickness, volume, weight, area


    Paper ID: STP29264S

    Committee/Subcommittee: C16.23

    DOI: 10.1520/STP29264S


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