ISO 21736:2020

This document specifies the principle, equipment, test pieces, procedures, result expression and test report of test methods for thermal shock resistance of refractories.
Three test methods are included in this document. Each one is applicable to a different product type and their test results are not comparable.
The test method, the test temperature and the test condition are intended to be negotiated by corresponding parties.
This document does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.