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Asia Testing and Inspection Service, Sharjah.
Asia Testing and Treatment Services LLC, Abu Dhabi.
Sai Non-Destructive Testing Services LLC, Dubai.
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The radiographic testing method is used for the detection of internal flaws in many different materials and configurations.
An appropriate radiographic film is placed behind the test specimen and is exposed by passing either X-rays or gamma rays through it.
The Introduction Of Radiograph Film Digitization Into The Major Utilities Such As Construction, Industrial Projects Enables The Owners Of The Process/Plant/Products To Have Electronic Records In Permanent Archives. Key Benefits: 1. Eliminates Ageing Of Films, Retaining Image Quality 2. Physical Archive Storage To Computer Data Cabinets 3. Deliverables Are Electronic Data Media With 25-50 Years Of Data Life 4. Full Traceability Is Integral To The System, With Tamper-Proof Designing At Each Stage 5. Radiographs Can Be Electronically Reported And Archived.
Ultrasonic inspection is a non-destructive method by which high frequency sound waves are introduced into the object being inspected. Most ultrasonic inspection is done at frequencies between 0.5 and 20MHz. The sound waves travel through the material with some loss of energy (attenuation) due to material characteristics.
The intensity of sound waves is either measured, after reflection (pulse echo) at interfaces (or flaw) or is measured at the opposite surface of the specimen (pulse transmission). The ultrasonic testing method is: a) Used for detection of flaws in materials and for thickness measurement. b) Used for the determination of mechanical properties and grain structure of material.
Magnetic particle testing is used for the testing of materials which can be easily magnetized. This method is capable of detecting open to surface and just below the surface flaws. In this method the test specimen is first magnetized either by using a permanent or an electromagnet or by passing electric current through or around the specimen. The magnetic field thus introduced into the specimen is composed of magnetic lines of force. Whenever there is a flaw which interrupts the flow of magnetic 5 lines of force, some of these lines must exit and re-enter the specimen.
This is a method that can be employed for the detection of surface-breaking defects in any industrial product made from a non-porous material. This method is widely used for testing of non-magnetic materials. In this method, a liquid penetrant is applied to the surface of the product for a certain predetermined time, after which the excess penetrant is removed from the surface.
The surface is then dried and a developer is applied to it. The penetrant which remains in the defect is absorbed by the developer to indicate the presence as well as the location, size and nature of the defect.
Often overlooked in listings of NDT methods, visual inspection is one of the most common and powerful means of non-destructive testing. Visual testing requires adequate illumination of the test surface and proper eye-sight of the tester. To be most effective visual testing requires training (knowledge of product and process, anticipated service conditions, acceptance criteria, record keeping, for example). It is also a fact that all defects found by other NDT methods ultimately must be substantiated by visual testing.
Positive Material Identification (PMI) is the analysis of a metallic alloy to establish composition by reading the percentage quantities of its constituent elements. The object of this nondestructive testing method is to identify metal alloys in place using a portable X-Ray fluorescent analyzer that determines the elemental composition of the material.
Rapid and accurate analysis Highly portable digital technology, can be used on site Certifies components requiring NACE MR0175/ISO 15156
Ferrite content analysis is a non-destructive testing method which provides critical data for austenitic stainless steel and duplex materials. The delta ferrite percentage or number allows a technical assessment of material corrosion susceptibility, mechanical properties, service suitability, and service reliability.
Vacuum box testing is a non-destructive examination used when trying to locate weldsseam leaks. A vacuum box and a compressor create a high or low pressure vacuum while a detergent solution is applied to the test area. The detergent bubbles, making leaks visible within the created pressure envelope. IRISNDT utilizes systems compliant with ASTM E515. All inspections are conducted within the parameters of ASME V Section 10, Appendix II or to client specifications.
As a standard technique, the temperature of the surface of the part to be examined should not be below 40°F (5°C) nor above 125°F (50°C) throughout the examination.
A borescope is an optical tool used to view areas that would otherwise not be visible. A borescope is inserted into the item being evaluated without destroying the item of interest. A Borescope can consist of Rigid or flexible working length Light Source to illuminate the target under inspection. Optical system that may consist of a relay lens system, rod lens system, fiber optic image guide a CCD or CMOS camera. Eyepiece or Monitor to view the image
