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ASTM C1223 2009 Edition, March 1, 2009
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Standard Test Method for Testing of Glass Exudation from AZS Fusion-Cast Refractories
Includes all amendments and changes through Reapproval Notice , 2014
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This test method covers a procedure for causing the exudation of a glassy phase to the surface of fusion-cast specimens by subjecting them to temperatures corresponding to glass furnace operating temperatures.

This test method covers a procedure for measuring the exudate as the percent of volume increase of the specimen after cooling.

Units—The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

Exception—The balance required for this test method uses only SI units (Section 6).

This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.