A fatty substance obtained from sheep wool and used as a base for ointments, lotions, etc. ; it has a flash point of 4600F and an ignition temperature of 8330F
Ralph W. Burklin & Robert G. Purington, Fire Terms: A Guide to Their Meaning and Use, National Protection Association, Boston, MA 1980 USA. (Guide: Meaning and Use, Nat Prot Association Fr Srvc - Amer) {457}