According to ASTM E709-95 when dry particles are used magnetic particle testing shallnot be performed on the surface of parts whose temperature exceeds:

According to ASTM E709-95 when dry particles are used magnetic particl

1.	According to ASTM E709-95 when dry particles are used magnetic particle testing shallnot be performed on the surface of parts whose temperature exceeds:
A.	57ºC
B.	79ºC
C.	158ºC
D.	136ºC
Answer» B. 79ºC