As of 2007, the average lengths of compact sedans and compact sport utility vehicles in America are 177.2 inches and 172.3 inches, respectively. Medium sedans and SUVs are 10 to 20 inches longer than their compact counterparts, while large cars are longer by a further 15 to 20 inches.
There are many types of accelerants throughout the industry. Accelerants are usually a mixture of solvents that are organic based. Examples of different types of accelerants include: Kerosene, paint thinner, Gasoline etc. These substances are also referred to as petroleum distillates. In the automotive industry however, there are only a few accelerants that are of vital importance. These are; petrol, diesel and lubricating oils [1].
The most commonly used leak test methods are. underwater bubble test, bubble soap paint, pressure and vacuum decay, and tracer. gas detectors (halogen, helium and hydrogen). The first three techniques, due to. their characteristics and sensitivity, can be used only for gross leak detection (300. g/y (10.5 oz) or more refrigerant leakages). Tracer gas leak testing methods are. much more precise than the previous group but, in many cases, their theoretical.