"Testing Method for Heat Resistance under Temperature Gradient" is a Japanese Industrial Standard newly established by the Minister of Economy, Industry and Trade, after deliberations by the Japanese Industrial Standards Committee, in accordance with the Industrial Standardization Law. This standard specified the testing method for heat resistance under temperature gradient of materials and coating members of equipment exposed to high temperature, such as aircraft engines, gas turbines, reciprocating engines, accelerators, power switchgears, etc. And three kind og testing methos, such as burner heating test, arc heating test and various beam heating test