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- Radiographic Testing(RT)
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RT is a detecting method for a discontinuity inside the volume of product by using a X-ray generator
or Radioisotope(Ir-192, Co-60, Se-75 etc.)
Generally, RT is used in detecting a discontinued indication or defect to be raised in weldment
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- Ultrasonic Testing(UT)
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UT is a detecting method for a discontinuity inside the volume of product by using a property having a signal reflected from a discontinued indication(or defect) with an ultrasonic penetraing into a product
Whether defect is existed or not is decided by the reflected ultrasonic size and reflecting time
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- Magnetic Particle Testing(MT)
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MT is a detecting method for a discontinuity on a surface or subsurface by magnetizing a ferromagnetic material
Whether defect is existed or not is decided by the location, size, configuration and width of a magnetic medium made by a magnetic leakage field.
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- Liquid Penetrant Testing(PT)
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PT is a detecting method for a discontinuity on a surface or subsurface by developing after removing exceed medium after applying penetrant medium to a surface of product
Whether defect is existed or not is decided by the location, size, configuration and width of a sucked penetrant medium
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- Eddy Current Testing(ECT)
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ECT is a detecting method for a discontinuity of product by measuring changes in eddy cuurent occurring
inside a conductor closing to metal mateiral
It is applied to a conductor and it can quickly obtain a result by using a non contact
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- Leak Testing(LT)
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LT is a detecting method for a discontinuity of product by using a pressure difference between inner and
outer of vessel or special gas
The method measuring a pressure difference uses air and liquid, and method tracing a gas uses a special gas
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- Visual Testing
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VT is a checking method for an error based on specification and properties of product by using direct and
indirect visual
VT is performed before other testing
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