ASTM F859-21 PDF Download

The design, construction, and performance specifications for multiple-tank automatic rack-type commercial dishwashing machines are outlined in the ASTM F859-21 standard. Dishwashing machines of all sorts, designs, and classifications are covered by the standard.

The standard specifies two different machine types: Type I, intended to accept the feeding of soiled tableware from the right side, and Type II, intended to accept the feeding of soiled tableware from the left side. Additionally, it lists four different machine types based on their method of heating: steam-heated, electrically heated, gas-heated, and pre-wash machines. Additionally, it divides equipment into four groups: Class A (injectors), Class B (heat exchange coils), Class C (natural gas), and Class D (LP gas).

The standard outlines specific specifications for the design, electrical, steam, and gas equipment, lubrication, treatment, painting, and dishwashing machine performance. Additionally, it addresses certain standards for continuous-type, oval-shaped machines with table conveyor systems.