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ASTM C177 Guarded Hot Plate Apparatus for thermal conductivity

ASTM C177 Guarded Hot Plate Apparatus for thermal conductivity

ASTM C177 Guarded Hot Plate Apparatus for thermal conductivity

(OP)
I am trying to build a C177 guarded hot plate test to measure the thermal conductivity of various insulation materials.  Does anyone have any hints on building a simple but precise unit (or know of a good site to reference)?

RE: ASTM C177 Guarded Hot Plate Apparatus for thermal conductivity

ASTM C1043 gives the design requirements for a guarded hot plate.  

You might also check the following website.  It gives a schematic of the GHP.

http://www.owlnet.rice.edu/~asteve/

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