Coal tar, a roofing material known for its hazardous chemical composition, poses significant health and safety risks due to its high concentration of Polycyclic Aromatic Hydrocarbons (PAHs). LCS Laboratory Inc. provides specialized testing to identify coal tar in construction materials, enabling safety professionals to evaluate risks and comply with regulatory standards.

The Purpose of Coal Tar Testing

Coal tar and oil tar are both used in industrial applications, particularly in roofing. While they may appear similar, their chemical properties differ significantly. Coal tar, produced at extremely high temperatures ranging from 1100°C to 1700°C, contains elevated levels of PAHs and other hazardous compounds. Oil tar, on the other hand, is distilled from mineral oil at lower temperatures (450°C to 600°C), resulting in a product with considerably lower PAH concentrations. Identifying which material is present is essential for assessing potential health risks, ensuring workplace safety, and meeting environmental regulations.

Technical Details of Coal Tar and Testing Services

Coal tar’s high PAH content results from the intense heat used during its production. At these temperatures, volatile organic compounds undergo chemical transformations, forming heavy PAHs that can further polymerize into asphaltens and eventually graphite or soot. In contrast, oil tar’s lower production temperatures limit PAH formation, making it a safer alternative.

To assist in identifying and evaluating roofing materials, LCS Laboratory Inc. offers the following tests:

  1. Coal Tar Solubility Test: Verifies whether the material aligns with the ASTM definition of coal tar.
  2. PAH Screening Test: Utilizes thin-layer chromatography to detect PAHs, providing a straightforward positive/negative result.
  3. PAH Concentration Analysis: Quantifies the concentration of PAHs in a coal tar extract, offering detailed chemical insights.

Sample Submission Instructions: Submit a small piece of roofing material (2″ x 2″), preferably from areas with a noticeable tar presence. Fill out our sample submission form, specifying the required test(s) and providing contact information, including your email address and desired turnaround time. Please check the shipping instructions if you are outside of Canada. Contact our team to discuss your project and testing requirements.

Why Choose LCS Laboratory Inc. for Coal Tar Testing?

Choosing a Canadian laboratory like LCS Laboratory Inc. provides critical advantages for Canadian health and safety professionals:

  • Regulatory Alignment: Our testing methods are designed to meet Canadian safety and environmental standards.
  • Faster Turnaround: Avoid delays associated with international shipping by working with a domestic laboratory.

Contact Us

Take the next step in protecting your team and complying with Canadian safety regulations. Contact LCS Laboratory Inc. to discuss your coal tar testing needs. Email us today to submit a sample or consult with our experts about your project.

Share this article: