NON-DESTRUCTIVE TESTING SERVICES



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ULTRASONIC TESTING


ULTRASONIC TESTING (UT) is a method of characterizing the thickness or internal structure of a test piece through the use of high frequency sound waves. Ultrasonic testing is very sensitive test method for detection of embedded linear discontinuities. It is fast, economical and results are highly repeatable and reliable.

At TOMTEC, we ensure that all our technicians are competent and certified to internationally recognized standards. TOMTEC performs Ultrasonic Testing in accordance with class requirements, client specific requirements, AWS D1.1, ASME B31.1, ASME B31.3, API 1104, API 650, API RP 2X, ASTM A388, ASTM A745, ASTM E164, ASTM A609, ASTM E114, BS EN ISO 17640, BS EN 10160, BS EN 10306, BS EN 10308, ASME BPVC Section V - Article 4 & 5, and similar national and international standards.

 

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ULTRASONIC THICKNESS MEASUREMENT


ULTRASONIC THICKNESS MEASUREMENT (UTM) is a widely used non-destructive testing technique for measuring the thickness of a material from one side. It is fast, reliable, and versatile. Ultrasonic Thickness Measurement (UTM) is commonly used and the method can be applied to a wide range of structures and components that includes ship hulls, piping, pressure vessels and structural steels.

TOMTEC's inspectors are highly experienced in performing ultrasonic thickness measurements and corrosion evaluations for all industry sectors including marine, offshore, oil and gas, power generation and construction industries. In addition, TOMTEC provides solutions for all your thickness gauging and corrosion monitoring requirements as we can perform follow-up non-destructive testing to further investigation of the results.

 

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ULTRASONIC BONDING / CLADDING TESTING


ULTRASONIC BOND TESTING (UTB) is a contact, pulse-echo ultrasonic testing method for determining bond defects between the bearing metal and the backing.

The extent of the bond between the babbitt and the backing metal of the sample bearings shall be determined by the use of ultrasonic methods. The ultrasonic signal reflected by the bond interface between the bearing metal and the backing is used to determine bonding defects.

At TOMTEC, we ensure that all our technicians are competent and certified to internationally recognized standards. TOMTEC performs Ultrasonic Bond Testing to provide you with an accurate assessment of the condition of your assets.

 

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MAGNETIC PARTICLE TESTING


MAGNETIC PARTICLE TESTING (MT) is a non-destructive testing (NDT) method for detecting surface and subsurface discontinuities in ferromagnetic materials such as iron, nickel, and cobalt. Magnetic Particle Testing is a fast, simple, inexpensive and highly portable NDT technique for detecting fine or shallow surface cracks in pipes and fixtures made of ferromagnetic material. It is a versatile evaluation technique that can be used to detect imperfections on test specimens of widely varying shapes and sizes.

TOMTEC provides a variety of Magnetic Particle Testing services including dry powder, wet visible, wet fluorescent using an electromagnetic/permanent yoke, coils, etc. At TOMTEC, we ensure that all our technicians are competent and certified to internationally recognized standards. TOMTEC performs both visible and fluorescent magnetic particle testing in accordance with ASTM E1444, ASTM E125, ASTM E709, ASME BPVC Section V-Article 7, AWS D1.1, BS 6072, EN 1290, BS EN ISO 17638, BS EN 1369, BS EN 10228-1 and similar national and international standards.

 

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LIQUID PENETRANT TESTING


LIQUID PENETRANT TESTING (PT) is a simple, inexpensive and reliable non-destructive inspection method for detecting discontinuities which are open to the surface of the item to be inspected. It can be used on metals and other nonporous materials that are not attacked by penetrant materials. With the proper technique, it will detect a wide variety of discontinuities ranging in size from those readily visible down to the microscopic level, as long as the discontinuities are open to the surface and are sufficiently free of foreign material.

TOMTEC performs both visible and fluorescent liquid penetrant testing in accordance with ASTM E1417, ASTM E165, ASTM E1418, ASTM E433, ASTM E1209, ASTM E1219, ASTM E1220, ASME BPVC Section V-Article 6, EN 571-1 and similar national and international standards.

 

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RADIOGRAPHIC TESTING


RADIOGRAPHIC TESTING (RT) is an important part of the inspection and development process within Non-destructive testing industry. The technique is commonly used on welded parts, castings, forgings, composites and is also used for corrosion mapping and the measurement of wall thickness. It is also used in the routine inspection of materials and component parts for the aircraft/aerospace, automotive, and shipbuilding industries.

At TOMTEC, we ensure that all our technicians are competent and certified to internationally recognized standards. TOMTEC performs Radiographic Testing in accordance with class requirements, client specific requirements, ASTM E94, AWS D1.1, ASME B31.1, ASME B31.3, API 1104, API 650, ASTM E1032, ASTM E1030, ASTM E1955, ASMT E1742, ASME BPVC Section V-Article 2, BS EN ISO 17636-1, BS EN 12681, BS EN ISO 10893-6 and similar national and international standards.

 

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EDDY CURRENT TESTING


EDDY CURRENT TESTING (ECT) is based on the principles of electromagnetic induction and is used to identify or differentiate among a wide variety of physical, structural, and metallurgical conditions in electrically conductive ferromagnetic and nonferromagnetic metals and metal parts.

At TOMTEC, our skilled technicians are experienced in this method, have internationally recognized qualifications and onsite experience. TOMTEC Performs test in accordance with BS EN ISO 17643, ASME BPVC Section V-Article 8, ASTM E376, ASTM E566, ASTM E703, ASTM E1004 and similar National and International Standards.

 

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VISUAL TESTING


VISUAL TESTING (VT) is the observation, either directly or indirectly (remotely), of a specimen by an Inspector in such a fashion as to determine the presence or absence of surface discontinuities or irregularities.

Tomtec provides visual inspection services for castings, forgings, pipes and pipelines, structures, pressure vessels, boilers, storage tanks and power plants. Direct visual inspection applies proper lighting, measurement, and comparative tools with the experience of our qualified technicians to determine design compliance and conformance to drawings, codes and specification requirements (E.g. AWS D1.1, BS EN 1370, BS EN ISO 17637, ASME B31.1, ASME B31.3, ASME Section VIII Div. 1, ASTM A802, ASTM A997, etc.)

 

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FIBERSCOPE


FIBERSCOPE (FS) is a flexible instrument that is constructed of a coherent fiber optic image guide that is used to inspect remote areas. A fiberscope is inserted into the item without destroying or disassembling the item of interest. Fiberscopes offer a cost effective, simple, portable means to inspect equipment. These scopes have proven extremely useful in inspecting rotating equipment, tubes, pipes, engines, buildings, car and truck assemblies, castings and more.

At TOMTEC, we ensure that all our technicians are competent and certified to internationally recognized standards. TOMTEC performs Fiberscope to provide you with an accurate assessment of the condition of your assets.

 

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INFRARED THERMOGRAPHY


INFRARED THERMOGRAPHY (IR) is a proactive troubleshooting and predictive maintenance tool. Without shutting down the equipment, or interfering with production, a thermographic inspection can detect problems in electrical panels, motor control centers, switchgear cabinets, disconnects, transformer bushings and terminations, and equipment control panels that may result in electrical fires, mechanical breakdowns, or significant business interruption.

At TOMTEC, our skilled technicians are experienced in this method, have internationally recognized qualifications and onsite experience. Infrared and digital pictures are recorded and analyzed by our skilled technicians to provide clear and concise thermography reports which show both high temperature problem areas as well as normal temperature non-problem areas for future trending and comparison.

 

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VIBRATION ANALYSIS


VIBRATION ANALYSIS (VA) utilizes the science of monitoring vibration patterns of motors, pumps, any operating equipment or environment to detect healthy and unhealthy vibrational patterns. Vibration analysis allows the user to evaluate the condition of equipment and avoid failures. Maintenance personnel can minimize unplanned downtime by scheduling needed repairs during normal maintenance shutdowns. Vibration Analysis is mainly used in the detection of the rotating equipment problems like imbalance, bent shaft, misalignment, soft foot, looseness through the study of the vibration coming from the equipment due to the problems. It is used to study bearing problems, gear box problems, etc.

Interpretation of vibration data by skilled TOMTEC technicians accurately interprets many things about the condition of an asset. TOMTEC can perform regular vibration analysis of plant equipment as part of a preventive maintenance programme, or as part of a Root Cause Analysis service to determine the cause of a machine problem.

 

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FLUORESCENT LEAK TESTING


FLUORESCENT LEAK TESTING (FLT) is a most effective method of detecting fluid leaks in industrial systems. FLT works best in enclosed circulatory system where fluids such as lubrications, hydraulics and cooling water are used in the system. FLT is commonly use in heat exchanger tanks, hydraulic system, pipelines and generator engines.

At TOMTEC, we ensure that all our technicians are competent and certified to internationally recognized standards. TOMTEC performs Fluorescent Leak Testing to provide you with an accurate assessment of the condition of your assets.

 

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POSITIVE MATERIAL IDENTIFICATION


POSITIVE MATERIAL IDENTIFICATION (PMI) is one of the most specialized non-destructive testing methods. With positive material identification, the alloy composition of materials can be determined. Positive material identification is performed on a wide range of components and assets and provides a semi-quantitative chemical analysis. It is used for both material verification and identification.

TOMTEC has sound experience in XRF Spectrometry. Our trained and qualified technicians use state of the art hand held XRF analyzers. Our PMI procedures conform to the following codes and their related PMI specifications such as ASME, ANSI, API, ASTM, etc.

 

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HARDNESS TESTING


HARDNESS TESTING (HT) is today one of the most frequently employed methods for mechanical material testing, in particular for metals. On the one hand, this test method allows qualitative relationships to other material properties (e.g. strength, rigidity, density) or to the behavior of the materials under certain loads (e.g. wear resistance) to be established. Hardness testing of metals is frequently required by specifications to help determine properties such as abrasive resistance, brittleness, ductility, yield and tensile strength.

The hardness test is comparatively quick and simple to perform and causes relatively little damage to the specimen, i.e. only very minor marks are left on the specimen surface. It also provides a simple method for quality control (incoming goods and outgoing goods inspection). The hardness test method also allows a wide variety of geometries to be tested.

Our hardness methods include: Barcol Hardness,Leeb Hardness,Vicker hardness and Ultrasonic Contact Impedance (UCI) hardnes.

 

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PHASED ARRAY ULTRASONIC TESTING


PHASED ARRAY ULTRASONIC TESTING (PAUT) typically consists of a transducer assembly with from 16 to as many as 256 small individual elements that can each be pulsed separately. These may be arranged in a strip (linear array), a ring (annular array), a circular matrix (circular array), or a more complex shape. As is the case with conventional transducers, phased array probes may be designed for direct contact use, as part of an angle beam assembly with a wedge, or for immersion use with sound coupling through a water path.

At TOMTEC, we ensure that all our technicians are competent and certified to internationally recognized standards. TOMTEC performs Phased Array Ultrasonic Testing to provide you with an accurate assessment of the condition of your assets.

 

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REMOTE FIELD TESTING


REMOTE FIELD TESTING (RFET) is an electromagnetic examination, which utilizes a through-transmission process. The resultant field is affected by either ID or OD tube wall anomalies. RFT signal measurements are made a few tube diameters away from the excitation coil without any attempt at tube wall magnetization or saturation. A pair of pick-up coils located in the remote field zone measures the resultant field to give both a differential and an absolute signal. The signal phase and amplitude information are used to determine defect depth and volume.

Remote Field is a technique used for the inspection of tubes made of ferrous materials, like Carbon steel and Chrome-Molybdenum.

At TOMTEC, we ensure that all our technicians are competent and certified to internationally recognized standards. TOMTEC performs Remote Field Testing (RFT) to provide you with an accurate assessment of the condition of your assets.

 

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INTERNAL ROTARY INSPECTION SYSTEM


INTERNAL ROTARY INSPECTION SYSTEM (IRIS) is an immersion type pulse-echo ultrasonic technique well suited to petrochemical and balance-of-plant (BOP) tube inspections. This technique uses an ultrasonic beam to scan the internal surface of the tube in helicoidal patterns, thus ensuring that the full length of the tube is tested. This tube inspection systems monitor the front-wall and back-wall echoes to measure the tube wall thickness.

At TOMTEC, we ensure that all our technicians are competent and certified to internationally recognized standards. TOMTEC performs Ultrasonic Internal Rotary Inspection System (IRIS) to provide you with an accurate assessment of the condition of your assets.

 

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FERRITE TESTING


FERRITE TESTING (FT) 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 reliability. It is a fast, inexpensive, and accurate way to measure delta ferrite content in austenitic and duplex stainless steels. Proper ferrite content provides a balance between ductility, toughness, corrosion resistance and crack prevention.

At TOMTEC, our trained and qualified technicians use Fischer's FERITSCOPE FMP30 to measure ferrite content in conformance with AWS 4.2, ISO 13520, ISO 8249, BS EN ISO 17655, as well as various other military, civilian, and customer specific standards and requirements.

 

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