WCO Explanatory Notes reproduced for reference. © World Customs Organization. Verify against official WCO publication.
84.24 - Mechanical appliances (whether or not hand-operated) for projecting, dispersing or spraying liqmds or powders; fire extinguishers, whether or not charged; spray p n s and similar appliances; steam or sand blasting machines and similar jet projechng machines (+). 8424.10 - Fire extinguishers, whether or not charged 8424.20 8424.30 - Spray guns and similar appliances - Steam or sand blasting machines and similarjet projecting machines - Other appliances : 8424.89 - - Agricultural or horticultural - - Other 8424.90 - Parts 8424.81 This headin covers machines and appliances for projecting, dis ersing or s aying steam, liquids or so id materials (e.g., sand, owders, granules, grit or metdic abrasivescn the form of a jet, a dispersion (whether or not in L p s ) or a spray. !? This heading, however, does not include water-'& or water-abrasive jet cutting machines which are desi ed for precise cutting of a variety of rnaterid's (e.g., stone, compos~tes,rubber, glass, metal). These macrnes tgplcally operate under ressures of 3,000 to 4,000 bars wth a stream of water or water mixed with fine a rasives, at a velocity $2 to 3 times the speed of sound (heading 84.56). (A) FIRE EXTINGUISHERS, WRETHER OR NOT CHARGED This group covers extinguishers, filled or not, of the kind which use foam-producing or other charges, including simple extinguishers fitted with taps, valves, percussion caps or other opening devices. The heading does not include : (a) Fire extinguishing grenades and charges for fire extinguishers (heading 38.13). (b) Fire fighting umps with or without internal reservoirs, heading 84.13 (non-automobile types) or beading ~.~Q(automobi~e types). (B) SPRAY GUNS AND SIMILAR APPLIANCES Spray guns and similar hand controlled appliances are usually desi ed for attaching to compressed air or steam lines, and are also connected, either directly or ough a conduit, with a reservoir of triggers or other valves for controlling the flow to give a jet or more or less varnishes, oils, plastics, cement, for projecting a powerful jet of statuary, etc. C The oup also includes separately resented hand controlled " for itting to printing machnes, an hand controlled metal the principle of a blow pipe, or by the combined effect of compressed air. 'f Hand controlled spray s with self-contained electric motor, incorporating a pump and a container for the rnateria to be sprayed (paint, varnish, etc.), are also covered by the heading. gun (C) STEAM OR SAND BLASTING MACHINES AND SIMILAR JET PROJECTING MACHINES Sand blasting machines and the like are often of heavy construction and sometimes incorporate compressors. They are used for de-scaling or cleanmg metal articles, for etching or putting a matt surface on glass, stone, etc., by subjectin the articles to the action of high pressure jets of sand, metal abrasives, etc. They are usually tted with dust extractors to remove the residual sand and dust. The heading also covers steam blast appliances used, for example, for de-greasing machined metal, etc. I (D) SYRTNGES, SPRAYS AND POWDER DISTRIBUTORS These are used for insecticides, fungicides, etc., in agriculture, horticulture or the home. The headin includes such appliances, w t h or without integral reservoirs, of the type operated by hand fncluding simple piston pump sprays) or by foot pedal, as well as powder bellows, knapsack spra ers and transportable s rayers. The headtng also includes mobile spraying machines in w&ch the motor providing ,Re power for pumping or spraying can also be geared to provide a limited movement of the a paratus for working purposes, but it does not include machines constituting true vehicles wit in the meaning of heading 87.05. Provided they inco~oratemechanical devices for roducin or dispersing the spray or jet, or for automatically orientating the spray head (inc1ucfnp, sim$e mechanisms activated by water pressure), the heading includes the following types o appliances, whether fixed, transportable or mobile : (1) Sprinklers and sprays for lawns, orchards, etc. (e.g., rotary sprays and oscillating sprays). (2) Hydraulic guns designed for dislodging minerals (e. ., gold bearin sands) £tom mountain sides, etc., by projecting powerful jets of water an water-jet barYc strippers used by the paper industry. % The heading also includes mechanical windscreen and headlamp washing devices for motor vehicles, and flame guns of the type used for destroying weeds or for other agricultural purposes. The heading does not include : (a) Insecticides ut up under pressure in containers fitted with simple pressure release valves (heading 38&. (b) Hose pipe nozzles (Section XV, or heading 84.81 if fitted with taps, cocks, valves or other appliances for regulating the liqwd flow). (c) Medical instnunenis of heading 90.18. (d) Scent sprays and similar toilet sprays (heading 96.16). (E) IRRIGATION SYSTEMS These irrigation systems, consisting of various components linked together usually include : (i) a control station (mesh filters, fertiliser injectors, metering valves, non-return valves, pressure regulators, pressure gauges, air vents, etc.); (ii) an underground network (distriiution lines and branchlines which carry the water from the control station to the irrigation zone); and (iii) a surface network (dripper lines incorporating the drippers). Such systems are classified in this headin as functional units within the meaning of Note 4 to Section XVI (see the General Explanatory ote to that Section). R This heading also covers : (I) Machines for coating various objects (for example, cups, cartons, boxes) by spraying with paraffin wax or molten wax. (2) Electrostatic painting apparatus consisting of a s ray gun connected to a paint container by a flexible tube carrying paint, and also connecte to a high-tension generator by an electnc cable. The electrostatic field created between the object to be painted and the gun attracts the paint particles sprayed by compressed air to that object and prevents dispersion. X (3) Industrial robots specially designed for projecting, dispersing or spraying liquids or powders. PARTS Sub'ect to the general provisions re arding the classification of parts (see the General Exp anatory Note to Section XVI), the eading includes arts for the appliances and machines of this headin . Parts fallin in this heading thus inclu e, inter alia, reservoirs for s rayers, spray nozzles, ances and tur dent sprayer heads not of a kind described in heading 84. 1. f % E B B The heading also excludes : (a) Hand- wered oil cans and grease guns (heading 82.05) and compressed air grease guns and other force- eed lubricating equipment (heading 84.67). P" (b) Steam blast soot removers for boilers (heading 84.04). (c) Furnace burners (heading 84.16). (d) Machines for cleaning barrels or other containers by jets of water, steam, sand, etc. (heading 84.22). (e) Ink-jet printing machines (heading 84.43). (f) Automatic vending machines of the scent spraying type (heading 84.76). (g) Machines for spreading mortar or concrete or for spraying gravel onto road or similar surfaces (heading 84.79). (h) Salt and sand spreaders for clearing snow, designed to be mounted on a lorry (heading 84.79). P (ij) Spra ng appliances for etching, developing, stripping, or cleaning semiconductor wafers and flat vane chsvla~s;deflash machines for cleaning and removing contaminants from the metal leads of iemiconductor packages prior to the elecGoplating ~ r o c i s s(deflash by high pressure spray) (heading 84.86). (k) Electric machines and apparatus for hot spraying of metals or cermets, of heading 85.15. (1) Jet-type dental drills (heading 90.18) and aerosol therapy apparatus (nebulisers) (heading 90.19).
Subheading Explanatory Notes. Subheading 8424.20 This subheading covers the appliances described in Part (B) of the ExplanatoryNote to heading 84.24. Subheading 8424.81 This subheading includes pressure spra ers (which may be marketed as "spray guns"), consisting of a ressure tank incorporatin a funnel anc?integrated pressure ump,a carrying strap, flexible tubin and s {and- he^ spray arm w i 8 a brass lance and an adjustagle nozzle, all of which exhibit $ysical characteristics which clearly render them most suitable for agricultural or horticultural use (for example, operating pressure of 3 bars, 5 litre capacity, adjustable nozzle orifice). -
Notes. 1.- This Chapter does not cover : (a) Millstones, grindstones or other articles of Chapter 68; (b) Machinery or appliances (for example, pumps) of ceramic material and ceramic parts of machinery or appliances of any material (Chapter 69); (c) Laboratory glassware (heading 70.17); machinery, appliances or other articles for technical uses or parts thereof, of glass (heading 70.19 or 70.20); (d) Articles of heading 73.21 or 73.22 or similar articles of other base metals (Chapters 74 to 76 or 78 to 81); (e) Vacuum cleaners of heading 85.08; (f) Electro-mechanical domestic appliances of heading 85.09; digital cameras of heading 85.25; (g) Radiators for the articles of Section XVII; or (h) Hand-operated mechanical floor sweepers, not motorised (heading 96.03). 2.- Subject to the operation of Note 3 to Section XVI and subject to Note 11 to this Chapter, a machine or appliance which answers to a description in one or more of the headings 84.01 to 84.24, or heading 84.86 and at the same time to a description in one or more of the headings 84.25 to 84.80 is to be classified under the appropriate heading of the former group or under heading 84.86, as the case may be, and not the latter group. (A) Heading 84.19 does not, however, cover : (i) Germination plant, incubators or brooders (heading 84.36); (ii) Grain dampening machines (heading 84.37); (iii) Diffusing apparatus for sugar juice extraction (heading 84.38); (iv) Machinery for the heat-treatment of textile yarns, fabrics or made up textile articles (heading 84.51); or (v) Machinery, plant or laboratory equipment designed for a mechanical operation, in which a change of temperature, even if necessary, is subsidiary. (B) Heading 84.22 does not cover : (i) Sewing machines for closing bags or similar containers (heading 84.52); or (ii) Office machinery of heading 84.72. (C) Heading 84.24 does not cover : (i) Ink-jet printing machines (heading 84.43); or (ii) Water-jet cutting machines (heading 84.56). 3.- A machine-tool for working any material which answers to a description in heading 84.56 and at the same time to a description in heading 84.57, 84.58, 84.59, 84.60, 84.61, 84.64 or 84.65 is to be classified in heading 84.56. 4.- Heading 84.57 applies only to machine-tools for working metal, other than lathes (including turning centres), which can carry out different types of machining operations either : (a) by automatic tool change from a magazine or the like in conformity with a machining programme (machining centres), (b) by the automatic use, simultaneously or sequentially, of different unit heads working on a fixed position workpiece (unit construction machines, single station), or (c) by the automatic transfer of the workpiece to different unit heads (multi-station transfer machines). 5.- For the purposes of heading 84.62, a “slitting line” for flat products is a processing line composed of an uncoiler, a coil flattener, a slitter and a recoiler. A “cut-to-length line” for flat products is a processing line composed of an uncoiler, a coil flattener, and a shear. 6.- (A) For the purposes of heading 84.71, the expression “automatic data processing machines” means machines capable of : (i) Storing the processing program or programs and at least the data immediately necessary for the execution of the program; (ii) Being freely programmed in accordance with the requirements of the user; (iii) Performing arithmetical computations specified by the user; and (iv) Executing, without human intervention, a processing program which requires them to modify their execution, by logical decision during the processing run. (B) Automatic data processing machines may be in the form of systems consisting of a variable number of separate units. (C) Subject to paragraphs (D) and (E) below, a unit is to be regarded as being part of an automatic data processing system if it meets all of the following conditions : (i) It is of a kind solely or principally used in an automatic data processing system; (ii) It is connectable to the central processing unit either directly or through one or more other units; and (iii) It is able to accept or deliver data in a form (codes or signals) which can be used by the system. Separately presented units of an automatic data processing machine are to be classified in heading 84.71. However, keyboards, X-Y co-ordinate input devices and disk storage units which satisfy the conditions of paragraphs (C) (ii) and (C) (iii) above, are in all cases to be classified as units of heading 84.71. (D) Heading 84.71 does not cover the following when presented separately, even if they meet all of the conditions set forth in Note 6 (C) above : (i) Printers, copying machines, facsimile machines, whether or not combined; (ii) Apparatus for the transmission or reception of voice, images or other data, including apparatus for communication in a wired or wireless network (such as a local or wide area network); (iii) Loudspeakers and microphones; (iv) Television cameras, digital cameras and video camera recorders; (v) Monitors and projectors, not incorporating television reception apparatus. (E) Machines incorporating or working in conjunction with an automatic data processing machine and performing a specific function other than data processing are to be classified in the headings appropriate to their respective functions or, failing that, in residual headings. 7.- Heading 84.82 applies, inter alia, to polished steel balls, the maximum and minimum diameters of which do not differ from the nominal diameter by more than 1 % or by more than 0.05 mm, whichever is less. Other steel balls are to be classified in heading 73.26. 8.- A machine which is used for more than one purpose is, for the purposes of classification, to be treated as if its principal purpose were its sole purpose. Subject to Note 2 to this Chapter and Note 3 to Section XVI, a machine the principal purpose of which is not described in any heading or for which no one purpose is the principal purpose is, unless the context otherwise requires, to be classified in heading 84.79. Heading 84.79 also covers machines for making rope or cable (for example, stranding, twisting or cabling machines) from metal wire, textile yarn or any other material or from a combination of such materials. 9.- For the purposes of heading 84.70, the term “pocket-size” applies only to machines the dimensions of which do not exceed 170 mm x 100 mm x 45 mm. 10.- For the purposes of heading 84.85, the expression “additive manufacturing” (also referred to as 3D printing) means the formation of physical objects, based on a digital model, by the successive addition and layering, and consolidation and solidification, of material (for example, metal, plastics or ceramics). Subject to Note 1 to Section XVI and Note 1 to Chapter 84, machines answering to the description in heading 84.85 are to be classified in that heading and in no other heading of the Nomenclature. 11.- (A) Notes 12 (a) and 12 (b) to Chapter 85 also apply with respect to the expressions “semiconductor devices” and “electronic integrated circuits”, respectively, as used in this Note and in heading 84.86. However, for the purposes of this Note and of heading 84.86, the expression “semiconductor devices” also covers photosensitive semiconductor devices and light-emitting diodes (LED). (B) For the purposes of this Note and of heading 84.86, the expression “manufacture of flat panel displays” covers the fabrication of substrates into a flat panel. It does not cover the manufacture of glass or the assembly of printed circuit boards or other electronic components onto the flat panel. The expression “flat panel display” does not cover cathode-ray tube technology. (C) Heading 84.86 also includes machines and apparatus solely or principally of a kind used for : (i) the manufacture or repair of masks and reticles; (ii) assembling semiconductor devices or electronic integrated circuits; (iii) lifting, handling, loading or unloading of boules, wafers, semiconductor devices, electronic integrated circuits and flat panel displays. (D) Subject to Note 1 to Section XVI and Note 1 to Chapter 84, machines and apparatus answering to the description in heading 84.86 are to be classified in that heading and in no other heading of the Nomenclature. Subheading Notes. 1.- For the purposes of subheading 8465.20, the term “machining centres” applies only to machine-tools for working wood, cork, bone, hard rubber, hard plastics or similar hard materials, which can carry out different types of machining operations by automatic tool change from a magazine or the like in conformity with a machining programme. 2.- For the purposes of subheading 8471.49, the term “systems” means automatic data processing machines whose units satisfy the conditions laid down in Note 6 (C) to Chapter 84 and which comprise at least a central processing unit, one input unit (for example, a keyboard or a scanner), and one output unit (for example, a visual display unit or a printer). 3.- For the purposes of subheading 8481.20, the expression “valves for oleohydraulic or pneumatic transmissions” means valves which are used specifically in the transmission of “fluid power” in a hydraulic or pneumatic system, where the energy source is supplied in the form of pressurised fluids (liquid or gas). These valves may be of any type (for example, pressure-reducing type, check type). Subheading 8481.20 takes precedence over all other subheadings of heading 84.81. 4.- Subheading 8482.40 applies only to bearings with cylindrical rollers of a uniform diameter not exceeding 5 mm and having a length which is at least three times the diameter. The ends of the rollers may be rounded.