1、 g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58ICS 13.030.40; 91.140.70Refuse chutes and hoppers SpecificationBRITISH STANDARDBS 1703:2005BS 1703:
2、2005This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 December 2005 BSI 30 December 2005First published as BS 1703 January 1951First revision as BS 1703 January 1957Second revision as BS 1703-1 June 1967 and as BS 1703-2 January 1968Third re
3、vision as BS 1703 September 1977Fourth revision as BS 1703 December 2005The following BSI references relate to the work on this British Standard:Committee reference B/508/1Draft for comment 04/30050096 DCISBN 0 580 47642 1BRE Building Research EstablishmentBritish Plastics FederationCIWM Chartered I
4、nstitution of Wastes ManagementContainer Handling Equipment ManufacturersEnvironmental Services AssociationGalvanizers AssociationODPM Represented by WRcPublic Authority Transport NetworkFreight Transport AssociationSociety of Motor Manufacturers and Traders LimitedAmendments issued since publicatio
5、nAmd. No. Date CommentsCommittees responsible for this British StandardThe preparation of this British Standard was entrusted to Subcommittee B/508/1, Waste containers and associated lifting devices on refuse collection vehicles, upon which the following bodies were represented:Association of Refuse
6、 Vehicles ManufacturersBS 1703:2005 BSI 30 December 2005ContentsPageCommittees responsible Inside front coverForeword ii1Scope 12 Normative references 13 Terms and definitions 24 Information to be provided by the purchaser 35 Chutes 66Hopers 87 Manufacturers certification 11Figure 1 Section through
7、a typical encased chute installation 4Figure 2 Section through a typical free-standing chute installation 5Figure 3 Hopper mouth and throat 6iBS 1703:2005iiCommittee B/508. It supersedes BS 1703:1997, which is withdrawn.This British Standard was first prepared at the request of the Building Division
8、al Council in order to indicate a general design and suitable materials for refuse chutes for multi-storey buildings. Attention is drawn to British Standard BS 5906.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct applicat
9、ion.Compliance with a British Standard does not of itself confer immunity from legal obligations.Summary of pagesThis document comprises a front cover, an inside front cover, pages i and ii, pages 1 to 11 and a back cover.The BSI copyright notice displayed in this document indicates when the documen
10、t was last issued.ForewordThis British Standard has been prepared under the direction of Technical BSI 30 December 2005BS 1703:20051 ScopeThis British Standard specifies requirements for gravity transport systems for refuse in multi-storey buildings, consisting of refuse chutes in the form of one or
11、 more vertical pipes, complete with hoppers, receiving refuse from successive floors in a building and discharging it into a refuse storage system.2 Normative referencesThe following referenced documents are indispensable for the application of this document. For dated references, only the edition c
12、ited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.BS 65, Specification for vitrified clay pipes, fittings and ducts, also flexible mechanical joints for use solely with surface water pipes and fittings.BS 476-4, Fire tests on build
13、ing materials and structures Part 4: Non-combustibility test for materials.BS 476-22, Fire tests on building materials and structures Part 22: Methods for determination of the fire resistance of non-loadbearing elements of construction.BS 915-2, High alumina cement Part 2: Metric units.BS 1449-1, St
14、eel plate, sheet and strip Part 1: Carbon and carbon manganese plate, sheet and strip.BS 2523, Specification for lead-based priming paints.BS 5906, Code of practice for storage and on-site treatment of solid waste from buildings.BS 5911-3, Concrete pipes and ancillary concrete products Part 3: Speci
15、fication for unreinforced and reinforced concrete manholes and soakaways (complementary to BS EN 1917:2002).BS EN 573-3:1994, Aluminium and aluminium alloys Chemical composition and form of wrought products Part 3: Chemical composition.BS EN 771-4, Specification for masonry units Part 4: Autoclaved
16、aerated concrete masonry units.BS EN 840-1, Mobile waste containers Part 1: Containers with two wheels with a capacity from 80 l to 390 l for comb lifting devices Dimensions and design.BS EN 840-2, Mobile waste containers Part 2: Containers with four wheels with a capacity from 500 l to 1200 l with
17、flat lid(s), for trunnion and/or comb lifting devices Dimensions and design.BS EN 840-3, Mobile waste containers Part 3: Containers with four wheels with a capacity from 770 l to 1300 l with dome lid(s), for trunnion and/or comb lifting devices Dimensions and design.BS EN 840-4, Mobile waste contain
18、ers Part 4: Containers with four wheels with a capacity from 750 l to 1700 l with flat lid(s), for wide trunnion or BG-and/or wide comb lifting devices Dimensions and design.BS EN 840-5, Mobile waste containers Part 5: Performance requirements and test methods.BS EN 840-6, Mobile waste containers Pa
19、rt 6: Safety and health requirements.BS EN 1011-2, Welding Recommendations for welding of metallic materials Part 2: Arc welding of ferritic steels.BS EN 1011-4, Welding Recommendations for welding of metallic materials Part 4: Arc welding of aluminium and aluminium alloys.BS EN 1706:1998, Aluminium
20、 and aluminium alloys Castings Chemical composition and mechanical properties.BS EN 10029, Specifications for tolerances on dimensions, shape and mass for hot rolled steel plates 3 mm thick or above.BS EN 22063, Metallic and other inorganic coatings Thermal spraying Zinc, aluminium and their alloys.
21、 BSI 30 December 20051BS EN ISO 1461, Hot dip galvanized coatings on fabricated iron and steel articles Specifications and test methods.BS 1703:20053 Terms and definitionsFor the purposes of this British Standard, the following terms and definitions apply.3.1 chuteventilated, essentially vertical, p
22、ipe passing from floor to floor of a building with openings as required to connect with hoppers and normally terminating at its lower end at the roof of the refuse storage chamber3.2 chute extensionstraight or sometimes offset section added to the lower end of the chute to direct the fall of refuse
23、into the refuse container3.3 hoppera fitting into which refuse is placed and from which it passes into a chute or sometimes direct into a refuse container, consisting of a fixed frame and hood unit (the frame) and a hinged or pivoted combined door and receiving unit (the door)3.4 hopper extensionapr
24、on or extension tray, additional to the receiving unit, which is provided to project refuse, at the correct angle from the hopper, direct into a refuse container3.5 mouthsmallest cross sectional area of the clearway into the installed hopper when the door is fully opened3.6 refuse storage chambercom
25、partment containing one or more containers into which refuse is discharged, and which can also house plant, such as a compactor, for the treatment of refuse before collection3.7 refuse storage containerremovable receptacle situated within the storage chamber and into which the refuse is discharged3.
26、8 shutterdevice consisting of a cut-off plate and supporting frame to close off the chute at its base when it is required to withdraw the refuse container for emptying3.9 throatsmallest cross sectional area of the clearway through the installed hopper when the door is fully closedNOTE See Figure 3.3
27、.10 ventilating fluepipe or shaft at the top of the chute to afford an outlet for foul airNOTE See Figure 1.2 BSI 30 December 2005BS 1703:20054 Information to be provided by the purchaser4.1 ChutesFor ordering purposes the purchaser shall provide the following information:a) the number of this Briti
28、sh Standard, i.e. BS 1703;b) chute diameter;c) material from which the chute is to be constructed;d) details of the ventilating system to be used, including dimensions and materials for flue and roof terminals;e) whether a chute extension is required, and, if so, whether it should be bifurcated;f) t
29、he finish required for any chute extension, shutter, or ventilating flue;g) whether separate access points for rodding are required.4.2 HoppersFor ordering purposes the purchaser shall provide the following information:a) the number of this British Standard, i.e. BS 1703;b) material from which the h
30、opper is to be constructed;c) finish required;d) size of chute to which the hopper is to be connected;e) whether a hopper extension is required, in which case dimensions and other details will be required by the manufacturer. BSI 30 December 20053BS 1703:2005All dimensions are in millimetres not to
31、scaleKey1 Ventilating outlet, taken above roof level2 Chute with internal cross-sectional area not less than 0.035 m23 Chute, preferably taken through next floor or roof slab. Alternatively, chute shall terminate not less than 0.3 m above the highest hopper, with vent pipe continuing to roof.4 Weak
32、concrete infill5 Refuse hopper6 Brick facing7 Provision should be made for ground floor residents to discharge waste through hopper at half landing level8 Refuse chute cut-off9 Chute extension10 Container to BS EN 840 (all parts)11 Smooth finish for container handling12 Grano, taken up chamber walls
33、 all around 75 mm thick with covered baseFigure 1 Section through a typical encased chute installation8123465910121172 000187-250752254 BSI 30 December 2005BS 1703:2005All dimensions are in millimetres not to scaleKey1 Free standing chute, minimum internal cross-sectional area 0.035 m22 Chute, prefe
34、rably taken through next floor or roof slab. Alternatively, chute shall terminate not less than 0.3 m above the highest hopper, with vent pipe continuing to roof3 Refuse hopper4 Main structural floor5 Collar unit6 Refuse chute cut-off7 Chute to project 25 mm for drip8 Chute extension9 Container to B
35、S EN 840 (all parts)Figure 2 Section through a typical free-standing chute installation51 23947682 000225750 BSI 30 December 20055BS 1703:20055 ChutesNOTE Typical refuse chute installations are shown in Figure 1 and Figure 2.5.1 Materials5.1.1 GeneralChutes shall be formed of, or lined with, impervi
36、ous materials with smooth inner surfaces. The materials shall be non-combustible when tested according to the requirements of BS 476-4. The materials shall be selected from:a) clay pipes conforming to the requirements of BS 65;b) concrete cylindrical pipes and fittings, conforming to the requirement
37、s of BS 5911-3;c) heat resisting concrete made from a suitable heat resisting aggregate and high alumina cement conforming to the requirements of BS 915-2 and in accordance with the cement manufacturers recommendations, when the chute concerned is not designed as a structural element;d) precast conc
38、rete conforming to the requirements of BS EN 771-4, with compressive strength greater 2All dimensions are in millimetres not to scaleKey1 Door closed 3 Hood 5 Door open2 Frame 4 Radial cheek C Inside cheeksNOTE 1 The hopper mouth is the rectangular area A C, while the throat is the rectangular area
39、B C.NOTE 2 Section XX chain lines show door in open position.Figure 3 Hopper mouth and throatXBAXX-X12345C6 BSI 30 December 2005than 25 N/mm ;e) plain carbon steel sheet conforming to the requirements of BS 1449-1;f) stainless steel sheet conforming to the requirements of BS EN 10029;or materials of
40、 equivalent or better characteristics.BS 1703:20055.1.2 Chute extension and shutterChute extensions and shutters shall be of plain carbon steel or other suitable material of comparable strength to withstand the impact of falling refuse. The minimum thickness of steel for the extension shall be three
41、 millimetres except where the highest hopper in the system is at a height of 12 storeys or over, when the minimum thickness shall be four millimetres. The minimum thickness of steel for the cut-off plate of the shutter shall be six millimetres.5.1.3 Ventilating flueThe ventilating flue shall be cons
42、tructed of any of the materials listed in 5.1.1, or cast iron flue pipe, clay flue lining, rendered brickwork or other suitable materials. Materials other than those specified in 5.1.1 may be used more than 300 mm above the top of the highest hopper inlet.5.2 Finish5.2.1 ChuteThe interior of the chu
43、te, the chute extension and any part with which refuse is likely to come into contact shall have a smooth, impervious finish. Where the chute is constructed of plain carbon steel sections they shall be galvanized after manufacture in accordance with the requirements of BS EN ISO 1461.5.2.2 Chute ext
44、ension, shutter and flueWhere ferrous metals are used and the purchaser specifies that they are to be zinc-protected, they shall either be galvanized after manufacture of the component in accordance with BS EN ISO 1461 or be zinc sprayed after manufacture in accordance with the requirements of BS EN
45、 22063.5.3 Dimensions and design5.3.1 ChuteChutes shall have an internal diameter of not less than 375 mm and the internal section shall be circular. The entry into the chute from the hopper shall be of such shape and dimension that the passage of refuse is in no way restricted. Where chutes are ass
46、embled from a number of individual sections, joints shall be smooth and free from intrusions into the bore of the chutes which could trap particles of refuse or initiate blockage.5.3.2 Access pointsIt is essential that there is access for rodding. Where purchasers consider that access through hopper
47、s is insufficient or unsuitable, they shall agree on an acceptable alternative with the manufacturer that meets the same safety requirements.5.3.3 Ventilating flueThe cross-sectional area of the ventilating flue and the total area of the ventilating outlet(s) shall each be not less than 0.035 m2. Wh
48、ere there is a common vent for more than one chute the cross-sectional area of the flue and its outlet(s) shall each be not less than 0.035 m2for each and every chute.The ventilating flue shall be protected at the outlet(s) against the ingress of the elements. The outlet(s) shall be so positioned as
49、 to give free cross-ventilation.5.3.4 Chute extensionThe chute extension shall have a cross-sectional area at least equal to that of the chute and the least dimension of its cross section shall be not less than the inside diameter of the chute.There shall be adequate provision for secure fixing, i.e. the extension will remain attached when subject to normal wear and tear such as blows from falling waste and objects protruding above the waste container.The
