At LCS Laboratory Inc., we specialize in analysis of toxic metals in air and are proud to provide laboratory testing services for Hexavalent Chromium (Cr (IV)). This method has been specifically developed and validated to ensure the air quality safety of workers who engage in welding, electroplating, chromate painting, or work with portland cement, and are therefore at risk of exposure to hexavalent chromium.

Why Test for Hexavalent Chromium?

Several common manufacturing and metalworking professions use products that may contain high concentrations of metals, including carcinogenic chromates. These compounds pose serious health risks when inhaled over prolonged periods. Our advanced testing method allows for precise detection of hexavalent chromium in indoor air, ensuring compliance with Industrial Hygiene air quality safety guidelines.

The NIOSH 7600 Testing Method

To accurately assess exposure levels, we employ the recognized standard method for detecting Hexavalent Chromium, NIOSH 7600. This approach includes:

  • Sample Collection: Airborne hexavalent chromium is collected on 37 mm PVC filters, for the entirety of a worker’s shift to provide a Time Weighted Average (TWA).
  • Sample Extraction: Once received at our laboratory, the hexavalent chromium is extracted from the filters. The method includes approaches for both water soluble and water insoluble chromates.
  • UV/Vis Analysis: Using a well-established spectrohotometric detection technique, we analyze the sample to determine the concentration of hexavalent chromium.
  • Reporting: Results are provided in milligrams per cubic meter (mg/m³), which can be directly compared to regulatory limits, such as the Occupational Exposure Limit for Ontario for Hexavalent Chromium (0.05 mg/m³).

Who Should Consider This Test?

If your workplace uses portland cement, or engages in welding, electroplating, or chromate painting (such as painting aluminum and its alloys) and is concerned about potential exposure to hexavalent chromium, this service is ideal for you. Identifying and quantifying the levels of metals in air can help determine the need for mitigation measures to protect workers’ health.

Get Started Today

For more information, shipping instructions, or to discuss your testing needs, please contact LCS Laboratory Inc.

Share this article: