Report on Inter-Laboratory Comparison of Guarded Hot Plate Measurements

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TypeTechnical Report
Series titleInternal Report (National Research Council Canada. Institute for Research in Construction); no. IRC-IR-653
Physical description8 p.
SubjectHeat Transfer; Building Envelope; Enveloppe du bâtiment
AbstractThe guarded hot-plate apparatus is the primary standard for the measurement of thermal conductivities of thermally insulating materials. Standard test procedures using the guarded hot plate are prescribed by ASTM and ISO. In principle, the values of thermal conductivities determined using a well-designed apparatus could be accurate to between 0.5% and 1%. But experience shows that the design, construction and operation of a guarded hot plate apparatus are very challenging tasks and it is not always possible to attain the highest theoretical accuracy. The work reported here was undertaken to compare the results obtained using four guarded hot plate apparatus that differ in design and modes of operation and to establish the agreement between the British, French and Canadian national standards.
Publication date
PublisherNational Research Council Canada
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedNo
NRC numberNRC-IRC-4960
NPARC number20359196
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Record identifier920c9733-3f90-46c1-a3f2-6213a419b8e3
Record created2012-07-20
Record modified2017-06-14
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