ASTM F1963-05R23

This specification covers the design and construction of commercial deep fat fryers which use electricity or gas as the heat source. These units are also known as fryers and are for use in commercial and institutional food service establishments. These open deep fat fryers are classified by type, size, grade, and class. Different types are classified according to where each type could be used: Type 1 for counter top use, Type 2 drop-in use, Type 3, floor-mounted, portable-castered use, and Type 4 is for floor-mounted, stationary-leg use. The classification of sizes (A-F) depends on the cooking capacity of fryers. These fryers can also be classified into four grades according to the type of material the cooking vessel and exterior are made: Grade 1 which has a stainless-steel cooking vessel and stainless steel exterior, Grade 2 which has a stainless-steel cooking vessel and coated carbon steel exterior, Grade 3 which has a carbon-steel cooking vessel and coated carbon steel exterior, and Grade 4 which has a carbon-steel cooking vessel and stainless steel exterior. In terms of style, four styles are available for these fryers: Style A which can be used for fixed electric heating, Style B for swing-up electric heating, Style C for induction heating, and Style D for gas firing. In terms of class, there are two kinds: Class 1 are fryers without automatic basket lift mechanism while Class 2 are fryers with automatic basket lift mechanism. Each fryer shall be subjected to a performance test.