The ASTM C201 test covers the determination of the comparative thermal conductivity of refractories under standard test conditions. This test method is designed for refractories with a conductivity factor of not more than 1 Btu.in./h.ft² °F (25 W/m K) for 200 inch (2818 mm) thickness.
The detailed ASTM test methods to be used in conjunction with this procedure for testing specific refractory material types are: Test Method C182, Test Method C202, Test Method C417, and Test Method C767.
The thermal conductivity of refractories is a necessary property for selecting thermal conductivity properties. Users select refractories to meet specified heat loss and cold face temperature conditions without exceeding the refractory's temperature limitation. This test method allows testing for the thermal conductivity of refractories using the calorimeter.
This procedure requires a large thermal gradient and steady-state conditions. Results are based on an average temperature.
The data obtained from this test method are suitable for acceptance of specification and design of multilayer refractory structure. Use of this data requires consideration of the actual application environment and conditions.
Values stated in inch-pound units should be considered standard. Values in parentheses are mathematical conversions to non-standard SI units, provided for informational purposes only.
This standard does not purport to address all, if any, safety concerns associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and to determine the applicability of regulatory restrictions prior to use.
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