Document 28NgOGmVYdn9B2q5Rk94r1VL

m From Date Subject D.A. Kuha March 10, 1975 Detectable Odor Levels of Common Chemicals Here is a list of chemicals including some of our feedstocks but also common laboratory re-agents with their threshold of smell. For comparison, I have included their threshold limit value which is the maximum concentration to which the worker can be exposed during an eight hour day. I hope these values will be helpful as you try to reduce worker exposure to chemicals in your plants. Please understand that these odor values are guides only. They are selected from the "best values" available in the literature, however, odor is a subjective thing and different people will sense different levels. If you are around a chemical a lot, the threshold of smell may become much higher. David A. Kuhn jb Attachment Distribution: H. Bitera J. Cearley E. Gremillion A. Goldfarb J. Hall D. Jensen G. Kerr C. Lunn D. Michels J. Patterson S. Pitts C. Puschell A Russell F. Willson MCD 000013196 CHEMICAL Acetone Ammonia Aniline Benzene Bromine Carbon disulfide Carbon tetrachLoride Chlorine Chloroform Ethanol Ethylene oxide Hydrogen sulfide Isoproyl alcohol Methanol Methyxlethy1 ketone Styrene Ozone Perchlorethylene Phenol Phosgene n-Propyl alcohol Sulfur dioxide Toluene Trichlore thylene 1,1,l-Trichloroethane o-Xylene THRESHOLD OF SMELL 100 ppm 5 ppm 0.5 ppm 4ioo ppm 40.01 ppm 1-2 ppm 70 ppm 0.02-0.05 ppm 200 ppm 350 ppm 700 ppm 0.1 ppm 200 ppm 2000 ppm 425 ppm 25 ppm 0.015 ppm 50 ppm 0.5 ppm 0.5 ppm 100 ppm 3-4 ppm 50 ppm 50-100 ppm 4100 ppm 4 ppm threshold LIMIT VAT.ITR 1000 50 5 10 0.1 20 10 1 50 1000 50 10 400 200 200 100 0.1 100 5 0.1 200 5 200 LOO 350 100 ppm ppm ppm ppm ppm ppm ppm ppm ppm ppm ppm ppcn ppm ppm ppm ppm ppm ppm ppm ppm ppm ppm ppm ppm ppm ppm 3/10/75 MCD 000013197