We provide testing services to certify product and materials compliance, support quality control, and ensure the health and safety of workers and their environment. We provide assistance for clients who are not sure what tests they need. Our accredited materials characterization laboratory is the foundation of all the services of RJ Lee Group provides, including standardized testing for compliance, industrial hygiene and environmental analyses, quality control, and materials research and development.

We provide credentialed expertise supported built by robust scientific data. We provide significant support to industrial clients for product development, industrial hygiene and overall production support.

RJ Lee Group maintains a visible and respected reputation within the legal community, having offered scientific support in civil litigation matters for nearly 30 years. 

  • Product Liability 
  • Toxic Tort
  • Construction Defect
  • Fugitive Emission
  • Personal Injury
  • Patent Infringement
  • Contract Disputes
  • Insurance Subrogation

Subject Matter Experts

From our core business of providing scientific solutions to our clients, we have developed innovative products. Some are produced internally, and some have arisen from partnerships with other research organizations. 

For example, we build lab software solutions to help manage and streamline your labs data, and environmental testing products for a variety of applications. 

  • IntelliSEM is a powerful automated particle analysis system.
  • ParticleID is  a customizable cloud hosted web application used to identify foreign particulate matter and  assist with root cause investigations. 

Other products we create count particles and help keep the air and environment safe.

RJ Lee Group is a materials analysis laboratory and consulting company which serves many different industries. We offer scientific solutions such as industrial forensics services, laboratory and testing services, litigation support, and laboratory software to many industries:

A Test Chamber Designed to Measure Respirable Dust for Product Stewardship

RJ Lee Group News

May 15, 2013

A construction materials manufacturer needed to label its products and provide guidance for safe work practices when using its products. To do that, the manufacturer needed to know the amount of respirable dust that could be generated by workers using the products under various conditions.

Workers use a variety of different tools and follow various work practices to size cement board products commonly used in the construction industry. The total amount of respirable dust generated during cutting operations will vary depending on the product type, worker techniques, cutting frequency, tools and dust collection devices used during the work activity.

RJ Lee Group designed and constructed a test chamber to simulate a controlled environment in which we could sample for respirable dust. We tested a number of different construction products and tools and duplicated worker techniques and their corresponding activity rates. Using real-time, direct-read instrumentation in conjunction with traditional integrated air sampling techniques, we recorded the results. We analyzed the samples to determine total respirable dust and to evaluate the dust for chemicals of potential concern.

Data from these studies were used for the development of respirable dust generation rates and modeling of exposure impacts. As a result of these studies, we were able to provide the client manufacturer with sufficient information to appropriately label its products and to provide the necessary warnings for personal protective equipment and dust controls when using its products.

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