Nondestructive Testing & Research

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RNDT Inc. is the leading provider of nondestructive testing and weld inspection services.

RNDT, Inc. is an A2LA ISO-17025 accredited commercial testing laboratory headquartered in Johnstown, PA.  Our field & laboratory services are offered to all industries.

RNDT provides nondestructive testing in the form of industrial radiography, positive material identification PMI, liquid penetrant, magnetic particle and ultrasonic testing and visual (CWI) inspections to most all industries. We employ highly trained and experienced nondestructive testing professionals that hold current certifications conforming to the requirements of ASNT SNT-TC-1A & CP-189, National Aerospace Standard NAS-410 Rev. 3, Pressure Equipment Directive 97/23 EC for PED projects.  These certifications satisfy global requirements for nondestructive testing personnel.

Let RNDT become a part of your quality assurance team.

RNDT, Inc. strives to be the unsurpassed commercial testing laboratory through commitment, integrity and experience.

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Industrial Radiography (RT)

Ultrasonic Testing (UT)

Liquid Penetrant Testing (PT)

Magnetic Particle Testing (MT)

Visual Inspection (VT)

Special Services

Codes and Standards

Positive Material Identification (PMI)

Marcellus Shale Natural Gas Division

Nondestructive Testing (NDT)

RNDT provides industrial radiographic testing services in both our laboratory and in the field at customer locations. We have traditional film based and digital computed radiographic testing services. Our custom built mobile darkrooms are easily set up in less than 10 minutes. We have several exposure vaults that allow for very large parts to be examined. We have several X-ray cabinets for small parts such as electronic chips. Also, we provide high volume processing of film with state-of-the-art ecologically friendly automatic processors. Our Level II and Level III radiographers are experienced in many different specialty techniques involving geometrically challenged parts.

Industrial radiography involves the use of penetrating X- or gamma radiation to examine parts and products for flaws that could be detrimental to their intended use. An X-ray machine or radioactive isotope is used as a source of radiation. Radiation is directed through a part onto a film or an electronic device (plate). When the film or plate is processed, a negative-like picture is obtained that shows the internal characteristics of a part. Possible imperfections show up as density changes in the film, in much the same way an x-ray can show broken bones.

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Ultrasonic testing uses the transmission of high frequency sound waves into a material to detect imperfections within the material or changes in material properties. The most commonly used ultrasonic testing technique is pulse echo wherein sound is introduced into the test object and reflections (echos) are returned to a receiver from internal imperfections or from geometrical surfaces of the part.

Our Level II and Level III certified UT technicians work to many codes in many industries. From thickness readings on ASTs to performing full length ultrasonic examinations on 40′ long seamless pressure vessels.

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Liquid Penetrant testing is probably the most widely used NDT method. The test object or material is first cleaned and then coated with a visible or fluorescent dye solution. After a pre-selected time interval (dwell time), the excess dye is removed from the surface, and then a developer is applied. The developer acts like a blotter and draws penetrant out of imperfections which are open to the surface. With visible dyes, the vivid color contrast between the penetrant and the developer makes the “bleedout” easy to see. With fluorescent dyes, an ultraviolet lamp is used to make the “bleedout” fluoresce brightly, thus allowing the imperfection to be seen readily.

With a wide variety of penetrant materials and a custom made fluorescent penetrant inspection system, we can provide both field and lab, high volume processing of many different parts with both fluorescent and visible penetrants.

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Magnetic particle testing is done by inducing a magnetic field in a ferro-magnetic material and dusting the surface with iron particles (either dry or suspended in a liquid). Surface imperfections will allow the magnetic field to leak out of the part, distort the magnetic field and concentrate the iron particles near imperfections, thus indicating their presence.

Magnetic Particle Testing, or Magnaflux as it is sometimes called, uses magnetic leakage fields to detect surface and subsurface cracks and discontinuities.

Our Magnaflux 6000 amp bench units with 8′ head stocks, portable power packs, yokes, prods, black lights and all required accessories provide the foundation for RNDT to provide quality MT visible and fluorescent, wet and dry examinations in both the lab and field.

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Probably the oldest and most common method of NDT is visual examination, which has numerous industrial and commercial applications. Examiners follow procedures ranging from simple to very complex, some of which involve comparison of workmanship samples with production parts. Visual techniques are used with all other NDT methods.

By use of many different gauges, micrometers, calipers, rulers, magnifying devices, remote video equipment, and surface conditioning equipment, we provide both lab and field visual inspection services.

Positive Material Identification:

  • X-Ray Fluorescence tube-based system
  • Portable alloy identification
  • Fast & accurate
  • Multi-element Analysis in one measurement
  • No isotope licensing or travel restrictions
  • Experience in all industries
  • Computer generated certified test reports
  • Latest technology available

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RNDT, Inc. is the ONLY commercial testing and research laboratory in Pennsylvania that has staff ASNT NDT Level III Examiners in UT RT AE MT PT & VT and EN-473 / ISO-9712 Level III Examiners in UT RT MT & PT.

These certifications, along with our ISO-17025 accreditation, satisfy global requirements for nondestructive testing personnel including the stringent requirements for the European Pressure Equipment Directive. We also employ ASNT ACCP Professional Level III Examiners in the testing methods of UT RT MT PT & VT, AWS-CWI, OSHA Crane Inspectors and API-510 pressure vessel inspectors in addition to NDT Level II technicians with multiple certifications.

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Positive Material Identification (PMI) is a nondestructive means of determining the chemical composition of metals. In a global sourcing environment, material can inadvertently be mixed up and cause serious issues while in service. Innov-X Alpha Series

We can quickly and accurately determine the chemical composition of many different metals. We have several Innov-X Alpha Series X-ray fluorescence units and experienced technicians that can provide this service anywhere in the USA.

X-ray fluorescence (XRF) is the emission of characteristic “secondary” (or fluorescent) X-rays from a material that has been excited by bombarding with high-energy X-rays or gamma rays. The phenomenon is widely used for elemental analysis and chemical analysis, particularly in the investigation of metals, glass, ceramics and building materials, and for research in geochemistry, forensic science and archaeology.

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RNDT, Inc. is centrally located in Pennsylvania to support any testing needs that your company may have relating to the Marcellus Shale Formations. Due to our location, we can offer reduced travel time and mileage to many sites. Often, our location eliminates the need to charge per diem because our technicians travel home each night.

Our technicians are not your typical RT hands. They are experienced with castings, forgings, rolled products, electronic components and much more. How does this make a difference? In addition to our ever expanding field services division, we operate a world renowned testing laboratory in Johnstown, PA. We test components from nearly every industry you can think of in most product forms. All of our technicians have been through the RNDT training school taught by several of the most experienced Level III instructors the industry has to offer.

RNDT, Inc. has a fleet of fourteen 4 X 4 mobile darkroom trucks and experienced radiographers to handle all pipeline and piping fabrication examinations.

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RNDT has NDT professionals that are recognized worldwide as leaders in the field of nondestructive testing. We have several professionals that have been active in nondestructive testing for thirty plus years working in all industries. We can develop a nondestructive testing technique for you on your product. Fill out a request form and we will contact you within 24 hours.

Nondestructive testing (NDT) is a wide group of analysis techniques used in science and industry to evaluate the properties of a material, component or system without causing damage. Because NDT does not permanently alter the article being inspected, it is a highly-valuable technique that can save both money and time in product evaluation, troubleshooting, and research. Common NDT methods include ultrasonic, magnetic-particle, liquid penetrant, radiographic, remote visual inspection (RVI),eddy-current testing.