Welcome to St. Louis Testing Laboratories

We Offer ISO/IEC Accredited 17025:2005 Testing for a Diverse Range of Clients

Chemical Testing


  • Metal Alloy Identification
  • Product Analyses/Testing
  • Simulated Environmental Analysis

Environmental Testing


  • Drinking and Waste Water Analysis
  • Priority Pollutants
  • Petroleum Products Testing

Metallurgical  Testing


  • Failure Analyses
  • Optical and Electron Microscopy
  • Corrosion Evaluation

Non-Destructive Testing (NDT)


  • Radiography
  • Ultrasonic Inspection
  • Weld Inspection

Mechanical Testing


  • Mechanical Properties Testing
  • Impact Testing
  • Welding Certification

Product Testing


  • CPSIA Compliance Testing
  • Phthalates Analysis
  • Lead Testing

Serving Industry for Over 85 Years

Who We Are

Founded in 1929, St. Louis Testing Laboratories is a privately owned, independent commercial testing laboratory offering testing and analyses for a diverse range of clients. We would welcome the opportunity to do the same for your business or organization.

Learn more

A2LA Accredited Test Lab    NADCAP Accredited

Ready to Get Started?

Just send us a message about your project. It’s as easy as that. We’ll answer any questions you may have and get you a fast, competitive quote.

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