Petroleum Distillates Safety Petroleum distillates are flammable and must be handled accordingly. Some people recommend a difference of 27 ° F between flash point and operating temperature. If ultrasonics are used, the bath temperature will rise over time. Toxicity levels of petroleum distillates are considered low. The paraffinic hydrocarbons have very low odor and aromatic content. State Information | Glossary | Conversion Checklist | Comments Home | Process Advisor | Alternatives | Links | Search All SAGE material, Copyright© 1992, Research Triangle Institute Last Update: 17 March 1995 sage@rti.org http://clean.rti.org/alt.cfm?id=pd&cat=sa