Chemical manufacturing facilities, equipment and components, other than specified in 2B350 or A2.008 as follows: Reaction vessels or reactors, with or without agitators, with a total internal (geometric) volume greater than 0,1 m 3 (100 litres) and less than 20 m 3 (20 000 litres) where all surfaces that come in direct contact with the fluid(s) being processed or contained are made from the following materials: Stainless steel with 20 % nickel and 19 % chromium or more by weight; Agitators for use in reaction vessels or reactors specified in a. where all surfaces that come in direct contact with the fluid(s) being processed or contained are made from the following materials: Stainless steel with 20 % nickel and 19 % chromium or more by weight; Storage tanks, containers or receivers with a total internal (geometric) volume greater than 0,1 m 3 (100 litres) where all surfaces that come in direct contact with the fluid(s) being processed or contained are made from the following materials: Stainless steel with 20 % nickel and 19 % chromium or more by weight; Heat exchangers or condensers with a heat transfer surface area greater than 0,05 m 2 , and less than 30 m 2 ; and tubes, plates, coils or blocks (cores) designed for such heat exchangers or condensers, where all surfaces that come in direct contact with the fluid(s) being processed are made from the following materials: Stainless steel with 20 % nickel and 19 % chromium or more by weight; Technical Note: The materials used for gaskets and seals and other implementation of sealing functions do not determine the control status of the heat exchanger. Distillation or absorption columns of internal diameter greater than 0,1 m; and liquid distributors, vapour distributors or liquid collectors, in which all surfaces that come in direct contact with the chemical(s) being processed are made from the following materials: Stainless steel with 20 % nickel and 19 % chromium or more by weight; Valves having a nominal diameter of 10 mm or more, and casings (valve bodies), balls or plugs designed for such valves, in which all surfaces that come in direct contact with the chemical(s) being processed or contained are made from the following materials: Stainless steel with 20 % nickel and 19 % chromium or more by weight; Technical note: The ‘nominal size’ is defined as the smaller of the inlet and outlet port diameters . Multiple-seal and seal-less pumps with manufacturer’s specified maximum flow-rate greater than 0,6 m 3 /hour (measured under standard temperature (273 K or 0 °C) and pressure (101,3 kPa) conditions); and casings (pump bodies), preformed casing liners, impellers, rotors or jet pump nozzles designed for such pumps, in which all surfaces that come in direct contact with the chemical(s) being processed are made from any of the following materials: Ceramics; Ferrosilicon (silicon iron alloys with more than 8 % silicon by weight or more); Stainless steel with 20 % nickel and 19 % chromium or more by weight; Technical Notes: The materials used for diaphragms or gaskets and seals and other implementation of sealing functions do not determine the control status of the pump. For the listed materials in the above entries, the term ‘alloy’ when not accompanied by a specific elemental concentration is understood as identifying those alloys where the identified metal is present in a higher percentage by weight than any other element.