Centek Laboratories, LLC a small business (WBE) established in 2003, is a laboratory specializing in the analysis of air using EPA Method TO-15, EPA Method TO-14A, Method 3C, ASTM E2600-08, CARB Method 10, and OSHA Method PV-2120, ASTM E2600-10 among others. Centek Laboratories, LLC is a nationally accredited environmental air laboratory by NELAC and AIHA. Centek ...