本文件规定了通过使用冷水对搪瓷钢试样进行热冲击来测定化学工业用搪瓷裂纹形成温度的试验方法。 根据本试验方法测量的裂纹形成温度值不适用于成品部件（见附录A）。它是用于比较不同釉质配方的相对质量的釉质和瓷釉的参数。

This document specifies a test method for the determination of the crack formation temperature of enamels for the chemical industry by subjecting enamelled steel specimens to thermal shock using cold water. The value of the crack formation temperature measured according to this test method does not apply to the finished component (see Annex？A). It is a parameter of vitreous and porcelain enamels for comparing the relative quality of different enamel formulations.