Transcription of Accelerated Aging Test Methods for Predicting the Long ...
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Accelerated Aging Test Methods for Predicting the Long Term Thermal Resistance of Closed-Cell Foam Insulation SACHCHIDA N. SINGH AND PAUL D. COLEMAN Huntsman Advanced Technology Center 8600 Gosling Road The Woodlands, TX 77381 ABSTRACT The accurate estimation of the thermal performance of insulation products used in buildings over their expected lifetime has been a recognized challenge for over 25 years. This is because the lifetime of such products is long, thermal Aging is caused by the diffusion of a multitude of gases, and the insulation product is not homogeneous.
The S770 method states that the initial thermal resistance of the product, R Product, initial shall be determined within 7-14 days after the production date and all the thin slices must be prepared on the same day as the measurement of initial R-value
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