Insulating firebrick (IFB) are classified by their bulk density and reheat change (see Classification C 155). This test method defines thermal stability by measurement of IFB'reheat change following 24 h at a test temperature.
Since this test exposes the entire sample to an isothermal temperature condition, the user should be aware that most applications for IFB involve a thermal gradient which may cause the IFB'dimensions to change differentially.
1.1 This test method covers the determination of the permanent linear (and volume) change of insulating firebrick upon reheating under prescribed conditions.
Extracted, with permission, from ASTM C210 Standard Test Method for Reheat Change of Insulating Firebrick, copyright ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428. A copy of the standard may be purchased from ASTM International, phone 610-832-9555, e-mail: firstname.lastname@example.org, website:www.astm.org.
Fulfilling the directive of our founder and benefactor, the Edward Orton Jr. Ceramic Foundation deploys its profits to support studies and research at the university level to promote and advance the science of materials processing.