Quality Inspection Service Company (QIS) was established in 2000 with its registered office at No. 02&8, Rach Dua Ward, Vung Tau City, Vietnam. With over 20 years of experience, I focus on quality and safety, not only on the amount of work.
QIS services have been well recognized for vendor inspection, new fabrication & installation and in-service inspection in various industrial fields such as Oil & Gas, Power & Chemical, and Ship Building industries.
QIS services are approved by Classification Societies such as Vietnam Register and Det Norske Veritas.
Products & Services
Ultrasonic Flaw Detection (UT)
Ultrasonic testing (UT) is used to detect discontinuities in materials and welds. The most harmful discontinuities such as cracks, lack of fusion and lack of penetration are suitably detected by UT. Ultrasonic testing is a useful meaning for assessing the integrity of the welds in T, Y, K configurations and the heavy wall thickness welds during fabrication and in-service inspection. Our UT inspectors are well trained and qualified in accordance with worldwide recognized standards such as PCN, CSWIP, ASNT and SNT-TC-1A for categories of weld configurations from butt weld in plates, nozzle welds to tubular variable configuration node weld. The UT inspectors are familiar with inspection activities concerning with new fabrication and inservice inspection of Jacket platforms, topside structures, piping systems and pressure vessels.
Magnetic Particle Testing
Magnetic particle testing (MT) is used to detect the surface breaking and slightly subsurface discontinuities in ferromagnetic materials. These discontinuities may be linked to new fabrication processes or in-service of objects. The typical discontinuities can be found are cracks, voids, porosity, inclusions, seams, laps and fatigue cracks. Our inspectors are experienced, well trained and qualified in accordance with recognized worldwide standards such as PCN, CSWIP, ASNT and SNT-TC-1A.
Dye Penetrant Testing (PT)
Dye Penetrant testing (PT) is used to detect surface-breaking discontinuities in non-porous materials. These discontinuities may be linked to new fabrication processes or in-service of objects. The typical discontinuities that can be found are cracks, voids, porosity, inclusions, seams, laps, and fatigue cracks. In oil & gas, power generation, and chemical industries, PT is used to reveal the discontinuities of welds in stainless steels, double plex, bronze, aluminum, and other suitable materials during new fabrication and in-service inspections. Our inspectors are experienced, well-trained, and qualified by recognized worldwide standards such as PCN, CSWIP, ASNT, and SNT-TC-1A.