Concord Analytical Services Limited (CASL) is an accredited Canadian laboratory founded in 1996 by chemical analysts with over 40 years of combined experience in the field. Our team of qualified professionals is committed to provide high quality results with a fast turnaround time. We specialize in providing analytical support to Industrial Hygienists. Industrial Hygiene Analysis is what we do. Our expertise in providing DPM Analysis (Organic Carbon Elemental Carbon), Respirable Quartz Analysis by XRD, Metal Analysis (Welding Fume Analysis) and Nickel Speciation Analysis has made us a leader in the industry.