69.보일러 및 압력용기에 대한 침투탐상검사(ASME Sec.V Art.6)에 따른 시험체의 표면온도 범위는 얼마인가?

해설

[ASME Sec.V Art.6] T-652 TECHNIQUES FOR STANDARD TEMPERATURES As a standard technique, the temperature of the penetrant and the surface of the part to be processed shall not be below 40°F (5°C) nor above 125°F (52°C) throughout the examination period.