Limitations of able's close cup
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Again, as the name suggests, the flash point in the closed cup method is conducted inside a closed vessel which is not open to the outside atmosphere. The lid is sealed and the ignition source is introduced into the vessel itself, allowing for a closer approximation to real-life conditions (such as those found inside a fuel tank).
The four main kinds of closed cup flash points are Pensky Martens, Abel, Tag, and the most widely-used, Small Scale, which is often known as Setaflash. However, new developments in flash point testing have led to the introduction of modified safety standards. For more information on such developments, see this article:
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