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The heat flow meter (HFM) method is used to test the thermal conductivity and thermal resistance of insulation samples. Using the interactive demonstration below, you can learn how to calibrate and test with the HFM. The reference material has been measured by an absolute method and values recorded.
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1 Calibration Material 
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2 HFM System 
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4 HFM Calibration Raw Data 
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Reference:
Paper: M. Bomberg, and K. R. Solvason. Discussion of Heat Flow Meter Apparatus and Transfer Standards Used for Error Analysis. Guarded Hot Plate and Heat Flow Meter Methodology. ASTM STP 879. Eds. American Society for Testing and Materials, Philadelphia, 140-153.
Available at: https://www.astm.org/DIGITAL_LIBRARY/STP/PAGES/STP32904S.htm
R. P. Tye, K. G. Coumou, A. O. Desjarlais, and D. M. Haines. Historical Development of Heat Flow Meter Apparatus for Measurements of Thermal Resistance of Insulations. Thermal Insulation: Materials and Systems ASTM STP 922. American Society for Testing and Materials, Philadelphia, 651-664.
Available at: https://www.astm.org/DIGITAL_LIBRARY/STP/PAGES/STP18510S.htm
ASTM: ASTM C518-15, Standard Test Method for Steady-State Thermal Transmission Properties by Means of the Heat Flow Meter Apparatus, ASTM International, West Conshohocken, PA, 2015, www.astm.org
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For more information visit Methods Requiring Calibration or Absolute Methods.
