1、BRITISH STANDARD BS4998:1985 Specification for Moulded thermoplastics dustbins (excludinglids) UDC628.463.2-036.5BS4998:1985 This British Standard, having been prepared under the directionof the Building ServicesStandards Committee,was published underthe authorityof the BoardofBSI andcomes intoeffec
2、t on 31December1985 BSI10-1999 First published January1974 First revision December1985 The following BSI references relate to the work on this standard; Committee reference SEB/20 Draft for comment83/12185 DC ISBN 0 580 14612 X Committees responsible for this British Standard The preparation of this
3、 British Standard was entrusted by the Building Services Standards Committee (SEB/-) to Technical Committee SEB/20 upon which the following bodies were represented: Association of Metropolitan Authorities Container Handling Equipment Manufacturers Engineering Industries Association Institute of Hous
4、ing Institute of Wastes Management Institution of Civil Engineers Institution of Environmental Health Officers Institution of Public Health Engineers Packaging and Industrial Films Association Amendments issued since publication Amd. No. Date of issue CommentsBS4998:1985 BSI 10-1999 i Contents Page
5、Committees responsible Inside front cover Foreword ii 1 Scope 1 2 Definitions 1 3 Materials 1 4 General dimensions 1 5 Mass 1 6 Design 1 7 Impact strength 2 8 Deformation resistance 2 9 Marking 2 Appendix A Test rig 3 Appendix B Test for strength of handles 3 Appendix C Test for impact strength of t
6、he base 3 Appendix D Test for impact strength of the sidewall 3 Appendix E Deformation resistance of the dustbin 3 Figure 1 Test block for handle 2 Figure 2 General layout of dustbin test rig 4 Figure 3 Striker base 5 Figure 4 Yoke made of low carbon steel 5 Figure 5 Release hook 6 Figure 6 Arrangem
7、ent for handle test 7 Figure 7 Loop for handle made from low carbon steel 8 Figure 8 Setting position for base impact 8 Table 1 General dimensions 1 Publication referred to Inside back coverBS4998:1985 ii BSI 10-1999 Foreword This revision of this British Standard has been prepared under the directi
8、on of the Building Services Standards Committee. It was originally proposed by the British Plastics Federation to provide performance requirements for dustbins manufactured from plastics materials. Such dustbins are being used increasingly and are suitable for use with all normal household waste exc
9、ept hot ashes. It supersedes BS4998:1974 which is withdrawn. This revision differs from the earlier edition in only specifying requirements for dustbin bodies made of thermoplastics materials. In particular, the requirements for the amount of rework material permitted, the dimensions of the dustbins
10、 and the appropriate test loads have been changed. The standard now specifies a maximum mass for the dustbin body. Requirements for dustbin lids will be specified in a forthcoming British Standard. Certification. Attention is drawn to the certification facilities described on the inside back cover o
11、f this standard. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This do
12、cument comprises a front cover, an inside front cover, pagesi and ii, pages1to8, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover.BS4998:1985 BS
13、I 10-1999 1 1 Scope This British Standard specifies requirements for the dimensions, materials, design and performance of moulded dustbins (excluding lids) manufactured from thermoplastics materials suitable for use with normal household refuse except hot ashes, and having capacities from0.05m 3to0.
14、12m 3 . This standard does not take account of: a) whether the dustbin is to be used in conjunction with a bin liner; b) the special design requirements necessary if the dustbin is to be subjected to regular dragging or rolling as part of a collection system. NOTEThe title of the publication referre
15、d to in this standard is given on the inside back cover. 2 Definitions For the purposes of this British Standard the following definitions apply. 2.1 thermoplastics a plastics material capable of being repeatably softened by heat and hardened by cooling 2.2 capacity the volume of liquid the dustbin
16、contains when it is filled to the brim 3 Materials 3.1 The dustbin shall be produced from a formulated and compounded thermoplastics material. If rework material is used, it shall not constitute more than30% of the total material and shall be the manufacturers material, of the same type, in accordan
17、ce with this standard. No other rework material shall be used. 3.2 The body handles shall be made either from metal or from a thermoplastics material complying with3.1. Metal handles and any associated fastenings shall be protected from corrosion, and shall show no pitting when tested in accordance
18、with BS5466-1 for a period of96 1h. Staining shall not constitute a failure. 4 General dimensions 4.1 The internal height and the internal diameter of the dustbin shall comply with Table 1, as appropriate. 4.2 The sidewalls of the dustbin shall taper from top to bottom. The taper and the position of
19、 the handles shall be such that, when one dustbin is stored inside another, the degree of nesting shall be not less than half the height of a dustbin. 5 Mass The maximum mass of the dustbin shall be5kg. Table 1 General dimensions 6 Design 6.1 Body The internal form and surface of the dustbin shall b
20、e such that it will not trap the contents when the dustbin is being emptied. The body shall be smooth and free from flashes and shall have no sharp edges. 6.2 Base The base shall have a projection or indentation of depth15mm minimum and length100mm minimum, positioned vertically below each body hand
21、le, and not more than50mm inward from the intersection of the side wall of the body and the base, which shall provide a finger grip. NOTEA suitable finger grip may be provided by means of raised cross hatching or radial ribs. 6.3 Body handles 6.3.1 Each dustbin shall be fitted with two diametrically
22、 opposite body handles, situated above the centre of gravity of the empty dustbin. 6.3.2 Each body handle shall be shaped so as to give a hand hold. A rigid test block of the dimensions shown in Figure 1 shall pass freely through each handle along a minimum length of105min. 6.3.3 The gripping part o
23、f the handles shall have no sharp corners or edges. 6.3.4 When tested in accordance with the method described in Appendix B and using the test rig layout given in Appendix A, there shall be no visible weakening of the attachments and no permanent distortion or splitting to the main body of the dustb
24、in. After a minimum period of30min from the end of the test, a rigid test block of the dimensions shown in Figure 1 shall pass freely through each handle along a minimum length of105mm. Capacity Internal height (max.) Internal diameter (max.) m 3 L mm mm 0.060 to0.070 0.071 to0.080 0.081 to0.090 0.0
25、91 to0.120 60 to70 71 to80 81 to90 91 to120 575 625 675 775 480 480 480 500BS4998:1985 2 BSI 10-1999 7 Impact strength 7.1 Impact strength of the base 7.1.1 At normal temperature (23 C). When tested in accordance with the method described inC.1, the dustbin shall show no splitting, puncture or perma
26、nent distortion. 7.1.2 At low temperature (10 C). When tested in accordance with the method described inC.2, the dustbin shall show no splitting, puncture or permanent distortion. 7.2 Impact strength of the sidewall When tested in accordance with the method described in Appendix D, the dustbin shall
27、 show no splitting, puncture or permanent distortion. 8 Deformation resistance When tested in accordance with the method described in Appendix E, the distortion of the dustbin mouth shall not exceed9%. 9 Marking Each dustbin shall be clearly and permanently marked with the following. a) The manufact
28、urers name or identification. b) The number and date of this British Standard, i.e.BS4998:1985 1) . c) The capacity of the dustbin. d) The year and month of manufacture. 1) Marking BS4998:1985 on or in relation to a product is a claim by the manufacturer that the product has been manufactured to the
29、 requirements of the standard. The accuracy of such a claim is therefore solely the manufacturers responsibility. Enquiries as to the availability of third party certification to support such claims should be addressed to the Director, Quality Assurance Division, BSI, PO Box375, Milton Keynes MK146L
30、O for certification marks administered by BSI or to the appropriate authority for other certification marks. Figure 1 Test block for handleBS4998:1985 BSI 10-1999 3 Appendix A Test rig The general layout of the test rig shall be as shown in Figure 2, Figure 3, Figure 4 and Figure 5. Prepare test loa
31、ds consisting of free flowing solid material of bulk density between400kg/m 3and480kg/m 3according to the equation test load (in kg)=brimful capacity (in m 3 ) 335 NOTEThe test load can conveniently consist of plastics granules contained in a polyethylene bag to prevent spillage from the dustbin. Ap
32、pendix B Test for strength of handles Set up the test rig as described in Appendix A and as shown in Figure 6 and Figure 7. Fill the dustbin with the appropriate test load. Put the loop (see Figure 7) through one handle and on to the crossbar; attach the yoke to the dustbin. Raise the dustbin so tha
33、t there is300 5mm of slack on the loop (see Figure 6). Release the dustbin using the release hook. Examine the handle and body of the dustbin for damage. Repeat the test with the other handle. Appendix C Test for impact strength of the base C.1 Test at normal temperature(23 C) C.1.1 Set up the test
34、rig described in Appendix A and as shown in Figure 8. C.1.2 Condition the dustbin at23 2 C for at least2h prior to testing. C.1.3 Attach the yoke to the dustbin containing the appropriate test load distributed throughout a minimum of50% of the dustbin capacity. Lower the dustbin until the base rim r
35、ests on the25 2mm thick spacer (see Figure 8). Adjust the position of the striker so that it touches the base not more than25mm beyond the centre of the base, opposite to the point at which the foot is in contact with the25mm packing. Raise the dustbin450 5mm above the striker. Remove the spacer and
36、 release the dustbin. Examine the dustbin for damage. C.2 Test at low temperature(10 C) C.2.1 Set up the test rig as described in Appendix A. C.2.2 Condition the dustbin at10 2 C for at least2h prior to testing in a chamber of convenient size, e.g.a commercial deep-freeze for foodstuffs. C.2.3 Withi
37、n1min of removing the dustbin from its cooling environment, place the appropriate test load in the dustbin and test as described inC.1.3. Examine the dustbin for damage. Appendix D Test for impact strength of the sidewall Condition the dustbin as described inC.2.2. Remove the dustbin from its coolin
38、g environment. Place the dustbin on its side, and, within1min of its removal from the cooling environment, strike the uppermost face of the sidewall of the dustbin at a point1005mm measured from the lip/rim of the dustbin mouth, using a striker having a mass of2.7 0.2kg with a hemispherical striking
39、 surface of252mm radius, dropped from a height of3.00 0.05m above the target point. Appendix E Test for deformation resistance of the dustbin Condition the dustbin as described inC.1.2. Suspend the dustbin by one of its body handles from a hook or by other suitable means. Record the distance across
40、the mouth of the dustbin along an axis running through the dustbin handles. Suspend a4.0 0.2kg weight from the other handle of the dustbin. After60 5s record the distance across the mouth of the dustbin along an axis running through the dustbin handles. Calculate the percentage distortion of the dus
41、tbin mouth. BS4998:1985 4 BSI 10-1999 Figure 2 General layout of dustbin test rigBS4998:1985 BSI 10-1999 5 Figure 3 Striker base Figure 4 Yoke made of low carbon steelBS4998:1985 6 BSI 10-1999 Figure 5 Release hookBS4998:1985 BSI 10-1999 7 Figure 6 Arrangement for handle testBS4998:1985 8 BSI 10-199
42、9 Figure 7 Loop for handle made from low carbon steel Figure 8 Setting position for base impactBS4998:1985 BSI 10-1999 Publication referred to BS5466, Method for corrosion testing of metallic coatings. BS5466-1, Neutral salt spray test. BSI certification marks A licence to use the Kitemark or “Safet
43、y Mark” on or in relation to a product will be granted to any manufacturer or producer who demonstrates that he can and will be able consistently to make that product to the requirements specified in the British Standard product specification. His capability of doing so is initially established by a
44、ssessment of his production process, quality control organization and test facilities against the required Part of BS5750 “Quality systems”, and by testing the product against all the criteria of the relevant standard. The licensee is required to document for BSI the Quality Plan setting out his spe
45、cific quality practices, resources and activities relevant to achieving compliance with the product standard. BSI carries out unannounced inspection visits to the manufacturers works and audit testing of the product, and may withdraw the licence for any failure of the manufacturer to comply with the
46、 relevant standard. The presence of the mark on or in relation to a product is an assurance that the goods have been produced under an independently assessed quality system and have been subject to testing and the periodical inspection of the manufacturers works in accordance with the certification
47、trade mark regulations of BSI.BS4998:1985 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitution BSI is the independent national body responsible for preparing BritishStandards. It presents the UK view on standards in Europe and at the international level. It is incorporated by Roya
48、l Charter. Revisions BritishStandards are updated by amendment or revision. Users of BritishStandards should make sure that they possess the latest amendments or editions. It is the constant aim of BSI to improve the quality of our products and services. We would be grateful if anyone finding an ina
49、ccuracy or ambiguity while using this BritishStandard would inform the Secretary of the technical committee responsible, the identity of which can be found on the inside front cover. Tel:02089969000. Fax:02089967400. BSI offers members an individual updating service called PLUS which ensures that subscribers automatically receive the latest editions of standards. Buying standards Orders for all BSI, international and foreign standards publications should be addressed to Customer Services. Tel:02089969001
