THE! method is applicable to enamelled objects and refers to the boiling temperature of distilled water. In particular cases the test can be carried out at a temperature lower than the boiling point or with water other than distilled water. In these cases, a note must be made on the test certificate.
UNI 6722-1970 history
1970UNI 6722-1970 Thermal protection lining. Determination of the resistance of ceramic paints to hot water and water vapor