coreslide conventndtslide 4-- advancedndtslide1 materiallptestslide- pwhtslide inspserviceslide officeslide


1. Conventional NDT

2. Advanced NDT

3. Material Properties Laboratory Test


4. QA/QC Services

5. Mechanical Completion & Commissioning


Ultrasonic testing (UT)

Magnetic particle testing  (MT/MPI)

Dye penetrant testing (PT)

Radiographic testing (RT)

Automated Ultrasonic Testing (AUT)

Eddy Current Testing (ET)

Hardness testing

Ultrasonic Thickness Measurement (UTM)

Positive material identification  (PMI)

Ferrite testing

Infrared Thermography

Bubble leak test – vacuum box

Leak Testing(LT)

Infrared Thermographic Inspection(IRT)

Alloy, Positive Material Identification(PMI)

Holiday Testing(HoT)

Hardress Testing(HaT)


IRIS tube wall thichkness measurement

Long range UT

AE crack detection

UT tank floor scan

Tank shell robotic inspection

Vacuum test at tank floor

Column scan

Real time degital RT

Flare inspection by drone

Stress measurement by stain gauge

Stress measurement by XRD

Replica test

       Phased Array Ultrasonic Testing (PAUT) and FMC/TFM.

       Time of Flight Diffraction  Technique (TOFD)

       Material properties laboratory test

       Visual inspection using video scope

       Pre / Post weld heat treatment

       Helium leak test

       Tubing leak test

       Cathodic protection test

       Pipeline locator + equipped with GPS

       Drone Inspection

       Welder qualification

       Third party inspection

       Authorized Inspector Services

       Inline inspection

       Baseline inspection

       QA/QC services

       Mechanical Completion & Commissioning

       Manpower supply

       ASNT/ISO NDT Level III services

       Fitness for Purpose Assessment



Phased Array Ultrasonic Testing(PAUT) and Time of Flight Diffraction(TOFD)

Computed Radiography(CR)

Magnetic Flux Leakage(MFL)

Tube inspection(ECT/RFT/MFL/NFL/IRIS)

Pulsed Eddy Current Testing (PEC)

Neutron Backscatter Moisture Detection for Corrosion Under Insulation(CUI)

Long range UT(LRUT)



Material Properties Laboratory Test

  • Tensile & Nick-break test
  • All weld Tensile test/ Z-tensile test/& Tensile -Determining Yeild Strength
  • Bend test
  • Fillet weld Break test
  • Hardness test
  • Macro test
  • Charpy Vee Notch Test (Impact test)
  • Composition Chemical Test
  • CTOD
  • Ferrite Content
  • Micstructure 100X or 500X
  • Intergranlular Corrosion
  • Pitting Corrosion Test
  • Chloride Stress Corrosion Cracking
  • HIC test

The PWHT/Stress relief process is performed by heating to a temperature as detailed in the welding code for the appropriate material, and holding at that temperature long enough to achieve the desired reduction in residual stresses.

Having well-qualified PhD team, QIS has led Vietnam heat treatment market by researching and building PWHT Internet of things System.


In an industry where safety and compliance are increasingly becoming the focal point of an organization, customers count on Q.I.S’s Inspection Services to provide access to certified professionals who are committed to maintaining partnerships that garner trust. Inspection involves verifying on-site that a product, asset or system meets specified

QIS is in the process of completing our new office at No 02&08, Dong Xuyen Industrial Zone, Rach Dua Ward, Vung Tau, Ba Ria Vung Tau Province, Vietnam


Home page


  • Mô tả

    QIS is a quality inspection service company which was established in 2000 with the registered office at 02L, Hill 2, Binh Gia street, Ward 10, Vung Tau City, Vietnam. The main focus of our businesses is in the fields of Non-Destructive Testing, Engineering inspection and Post Weld Heat Treatment.  QIS is managed and operated by the experienced and skillful teams. Most of employees are qualified by international recognized independent Certification Bodies such as PCN, CSWIP, AWS and ASNT.


     Address: Green Building, No 02&08, Dong Xuyen Industrial Zone, Rach Dua Ward, Vung Tau City, Ba Ria - Vung Tau Province, S.R. of Vietnam

    Tel: +84-254-3857325 

    Fax: +84-254-3833518



    Social Network