Case Studies: Case Studies – Litigation Support

Test Chamber Simulation Studies Confirm Respirator Effectiveness for Airborne Coal Dust

A number of personal injury claims asserted that NIOSH-approved respirators worn by coal miners were tested using silica dust and therefore were not effective for miners exposed to airborne coal dust. The NIOSH method evaluated the performance of air-purifying respirators according to Title 30, Part 11 of the Code of Federal Regulations. A law firm ...
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PVC Pipe Failure Results from Improper Installation

Polyvinylchloride (PVC) is one of the most widely produced plastics in the world and accounts for approximately 70% of new buried water distribution and sanitary sewer pipes being installed in the U.S. and Canada today. With so much more PVC in use today, there are more situations in which pipes can fail. Whether caused by ...
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Failure Analysis Determines Faulty Workmanship to be Cause of Defective Building Materials

RJ Lee Group's petrographic scientists used in-house laboratory capabilities to prove that poor workmanship—rather than faulty materials—was the cause of delamination and cracking in stucco used in a residential construction project.
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Capacitor Testing Provides Data for Possible Patent Infringement

RJ Lee Group received several de-mounted multi-layer ceramic SMT capacitors for examination. The devices were involved in a patent infringement case dealing with device design and the electrical properties of the insulator material.
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Outsourced Component Did Not Contribute to Medical Device Implant Failure

When the manufacturer of a medical device implant saw an increase in the device’s failure rate after implant, they alleged that a component provided by a supplier was responsible.
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Did a Cracked Pipe Cause a Landslide?

RJ Lee Group was retained to investigate the role that a failed municipal water pipe played in a landslide that resulted in environmental concerns. After performing a comprehensive investigation, our experts determined that the pipe failed as a result of the landslide rather than the pipe failure causing the landslide.
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Product Failure Analysis: Consumer Product Affected by Inappropriate Raw Material

When homeowners issued complaints about staining on roofing shingles, the manufacturer took action. Through a full-scale forensic investigation, RJ Lee Group determined the source of failure and maintained the client's reputation.
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Establishing the WTC Dust Signature: Managing Post 9/11 Environmental and Damage Assessments

RJ Lee Group served as the lead scientific management team, collecting and processing more than 100,000 samples over a three-year period — the most comprehensive environmental impact study ever performed in Class-A building structures.
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Exemplar Comparison Eliminates Aircraft Engine as Cause of Fatal Accident

In an effort to determine if mechanical failure may have contributed to the cause of a fatal airplane crash, an airplane engine manufacturer retained RJ Lee Group to examine components of the 30-year old engine involved in the accident.
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Industrial Plants Can Face Costly Nuisance Dust Claims

RJ Lee Group was retained by an industrial plant to investigate — and ultimately refute — nuisance dust claims. We issued an expert report and provided supporting data and a deposition testimony.
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Experts Distinguish Corrosive Property Damage from Normal Deterioration

When 60 tons of chlorine gas were released in a catastrophic event, RJ Lee Group was called in to assess more than 360 property locations and 500 vehicles. Our expert testimony ultimately helped to refute unsubstantiated damage claims in the surrounding area.
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