A 'B symptom' is a general symptom that, when combined with other symptoms, often preceeds the diagnosis of lymphoma. Primary B symptoms include the following, and in order to be considered B symptoms, they generally must persist for at least six months: Unexplained low-grade fevers. Drenching lymphoma night sweats.
Propane: Liquefied Petroleum Gas (LPG). Propane, or liquefied petroleum gas (LPG), is a clean-burning fossil fuel that can be used to power internal combustion engines. LPG-fueled vehicles can produce significantly lower amounts of some harmful emissions and the greenhouse gas carbon dioxide (CO 2). LPG is usually less expensive than gasoline, it can be used without degrading vehicle performance, and most LPG used in U.S. comes from domestic sources. The availability of LPG-fueled light-duty passenger vehicles is currently limited.
LPG (liquefied petroleum gas) is a mixture of predominantly alkane hydrocarbons, with either propane or butane usually present in greatest amount and both of these almost alwa â¦ ys present. + 2 others found this useful. Brook Thiel.ethane is also a common byproduct from anaerobic metabolism primarily by microorganisms. LPG (liquified petroleum gas) contains mainly propane, but also some butane and other alkanes. It is a naturally occurring petroleum product and is recovered from oil wells, or distillation and cracking of petroleum products.