Conventional NDT used for internal Inspection!

Visual Inspection.

VT is the fastest and cheapest method of Non-destructive
testing. It’s the first step of every inspection before any
other Non-destructive test starts. When performing visual
test with naked eye, equipment such as magnifying glass,
light source, borescope, and mirror can also be used.

Ultrasonic Testing

Wall Thickness & Metal Loses measurements using UT Thickness Gauges includes A-scan feature to able to detect corrosion failure and display reading in Digital & A-scan view.

Magnetic Testing
MT is essentially a surface – type examination, although some imperfections just below the surface are detectable. This type of examination is limited to materials which can be magnetized (hence it is not appropriate for austenitic stainless steels). An area to be examined by magnetic particle examination can be completely examined or examined on a random sampling basis, as specified.
Penetrant Testing
MT is essentially a surface – type examination, although some imperfections just below the surface are detectable. This type of examination is limited to materials which can be magnetized (hence it is not appropriate for austenitic stainless steels). An area to be examined by magnetic particle examination can be completely examined or examined on a random sampling basis, as specified.
Radiography Testing
Random R T X-ray or gamma ray radiography may be used. The selection of the method should be dependent upon its adaptability to work being radiographed. When random radiography of welds is specified by the engineering design, it should be done on the number of welds designated. The engineering design shall specify the extent to which each examined weld should be radiographed. Random radiography may also be used for examination of piping components such as a valve or fitting to any extent specified by the engineering design .