To obtain a copy of a specific publication, users should contact the publication's publisher directly.
Abstract
The current report describes the results obtained from 13 participating labs in an interlaboratory comparison on a procedure to estimate the long-term thermal resistance of unfaced, rigid, closed-cell polyisocyanurate foam insulation. The procedure used ASTM Test Method C 518 for periodic determinations of the thermal resistance of specimens reduced thickness for a period of 200 days to observe the effects of aging. The set of thermal resistance results for speicmens age dunder controlled lab conditions was used in a computer program to predict the lifetime thermal resistance of the foam product under actual use conditions. The results of this study provide a precision and bias statement that is needed for the as-tested procedure and for an ASTM C16 standard on estimating aging effects on k.
The current report describes the results obtained from 13 participating labs in an interlaboratory comparison on a procedure to estimate the long-term thermal resistance of unfaced, rigid, closed-cell polyisocyanurate foam insulation. The procedure used ASTM Test Method C 518 for periodic determinations of the thermal resistance of specimens reduced thickness for a period of 200 days to observe the effects of aging. The set of thermal resistance results for speicmens age dunder controlled lab conditions was used in a computer program to predict the lifetime thermal resistance of the foam product under actual use conditions. The results of this study provide a precision and bias statement that is needed for the as-tested procedure and for an ASTM C16 standard on estimating aging effects on k.
Date
1/1995
1/1995
Author(s)
R Graves; D McElroy; F Weaver; D Yarbroug
R Graves; D McElroy; F Weaver; D Yarbroug
Page(s)
93
93
Source
Oak Ridge National Lab
Oak Ridge National Lab
Keyword(s)
thermal resistance; polyisocyanurate foam insulation; PIR; cooperative study
thermal resistance; polyisocyanurate foam insulation; PIR; cooperative study