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).
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);