SYMPOSIA PAPER Published: 01 January 1990

New Developments Toward Accurate Assessment of Material Density for ASTM C 687 Testing of Pneumatically Applied Insulations


Quality measurements of the thermal performance of pneumatically applied mineral fiber insulations by use of a heat flow meter device require accurate assessment of the density of material in the specific area of the heat flow meter. Current standard methods to determine this density are inadequate. A compression sampling device/technique has been developed which increases the accuracy and repeatability of density determination. Operator judgement is also greatly reduced. This device, coupled with more detailed and standardized thermal specimen generation techniques, promotes reduced density variation within the test specimen. A ±5% density variation is achievable.

Author Information

Mathis, RC
NAHB National Research Center, Upper Marlboro, MD
Kenney, TM
NAHB National Research Center, Upper Marlboro, MD
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Developed by Committee: C16
Pages: 253–262
DOI: 10.1520/STP23313S
ISBN-EB: 978-0-8031-5109-3
ISBN-13: 978-0-8031-1278-0