Eddy Current Test	Penetrant Test	Magnetic Particle Test	Visual Test
Radiographic Test	Ultrasonic Test	Magnetic Flux Leakage Test	Visual Test Using Fibrescope

Magnetic Flux Leakage Test	Principle Application Advantage Limitation
Principle	Back
The principle of MFL is the application of a magnetic bridge to introduce saturation of flux in the inspection materials between the poles of bridge. Any significant reduction in the thickness of the materials will result in some of the magnetic flux being forced into the air around the area of reduction.

Application	-	To carry out flaw detection on a large tank floor area within an economy time frame.	Back
Advantage	-	Very powerful in scanning a large floor area.	Back
	-	Less dependent on operator technique.
	-	Efficient and easy operation.
	-	A reliable indication of corrosion on tank floor.
Limitations	-	Impossible to achieve 100% coverage due to limitation of physical access.	Back
	-	Cannot differentiate between response from top side and bottom side indications.
	-	Qualitative but not quantative inspection tools.
	-	Due to environmental and physical restriction during inspection, no reliable quantative indication is possible.