What are the workplace exposure limits for EnSolv?
Based on the preponderance of scientific evidence and an average of recommended 8-hour time weighted average exposure limits derived from three peer-reviewed and published scientific journal articles on the subject, 100 ppm 8-hour TWA is a safe workplace exposure level. The U.S. EPA recommended 25 ppm as a WEL (workplace exposure limit) in its SNAP approval docket, and we at Enviro Tech feel that this is an extremely safe and relevant number to use. The American Conference of Governmental Industrial Hygienists published an opinion that 10 ppm be the maximum TLV (threshold limit value), however because this opinion specifically addresses n-propyl bromide containing an abnormally high isopropyl bromide content (0.1% or greater weight by volume) and because EnSolv uses only nPB with at least a 20-fold lower level of iPB (<0.005% max) as a specification maximum, this value is irrelevant to EnSolv nPB mixtures. Finally, California OSHA has set a 5 ppm PEL (Permissible Exposure Limit) for nP
