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1、BRITISH STANDARD BS 1244-2: 1988 Metal sinks for domestic purposes Part 2: Specification for sit-on and inset sinks UDC 696.142:644.652:669.14.018.8 Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 24 08:30:57 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 1244-2:1988 This British Standard, having
2、 been prepared under the direction of the Building Services Standards Committee, was published under the authority of the Board of BSI and comes into effect on 30 November 1988 BSI 07-1999 First published August 1945 First revision August 1956 Second revision December 1972 Third revision December 19
3、82 Fourth revision November 1988 The following BSI references relate to the work on this standard: Committee reference SEB/1 Draft for comment 86/13148 DC ISBN 0 580 17001 2 Committees responsible for this British Standard The preparation of this British Standard was entrusted by the Building Servic
4、es Standards Committee (SEB/-) to Technical Committee SEB/1, upon which the following bodies were represented: British Bathroom Council British Plastics Federation Builders Merchants Federation Clay Pipe Development Association Limited Consumer Policy Committee of BSI Department of Health and Social
5、 Security Department of the Environment (Building Research Establishment) Department of the Environment (Construction Industries Directorate) Department of the Environment (Property Services Agency) Institute of Clerks of Works of Great Britain Incorporated Institute of Plumbing Institute of Vitreou
6、s Enamellers Institution of Environmental Health Officers Institution of Water and Environmental Management (IWEM) Metal Sink Manufacturers Association Royal Institute of British Architects Vitreous Enamel Development Council Water Authorities Association Amendments issued since publication Amd. No.
7、Date of issueComments Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 24 08:30:57 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 1244-2:1988 BSI 07-1999i Contents Page Committees responsibleInside front cover Forewordii 1Scope1 2Definitions1 3Designation1 4Marking1 5Defects1 6Materials1 7Construc
8、tion and finish2 8Drainers2 9Waste outlets2 10Overflows2 11Tap holes2 12Earth terminal3 13Dimensions3 14Co-ordinating sizes3 Appendix A Information to be provided by the purchaser6 Appendix B Determination of abrasion resistance6 Appendix C Determination of alkali resistance6 Appendix D Determinatio
9、n of hot water resistance6 Figure 1 Typical examples of sit-on sink types4 Figure 2 Typical examples of inset sink types5 Table 1 Co-ordinating sizes and manufacturing sizes for sit-on sinks3 Table 2 Dimensions for inset sinks4 Publications referred toInside back cover Licensed Copy: sheffieldun she
10、ffieldun, na, Fri Nov 24 08:30:57 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 1244-2:1988 ii BSI 07-1999 Foreword This Part of BS 1244 has been prepared under the direction of the Building Services Standards Committee and specifies a range of metal sit-on and inset sinks suitable for domestic use.
11、 It supersedes BS 1244-2:1982 which is withdrawn. BS 1244-1:1956 has been declared obsolescent. The main change in this revision is the inclusion of inset sinks and enamelled sinks, with performance requirements for enamelled sinks for resistance to staining, abrasion, effect of alkali and hot water
12、. Independent waste outlets for drains to inset sinks will be the subject of an amendment to this standard. The plumbing dimensions of the sinks enable water and waste fittings and other components with co-ordinated connecting dimensions to be used for the plumbing. The overall dimensions of the sin
13、ks allow for alignment with items of kitchen equipment (see note). Vitreous enamel sinks and stainless steel sinks have different characteristics and will exhibit different reactions when, in use, they are exposed to certain abrasives, chemicals, etc., and the recommendations of the manufacturer sho
14、uld be carefully followed. During the preparation of this revision some consideration was given to a proposal to reduce the minimum thickness of the steel from which sinks are formed. Although no action was taken, discussions are continuing and an amendment to this effect may be issued in due course
15、. The question of impact testing was also discussed, and a test will be incorporated into this standard when a suitable test has been agreed. Accessory hole sizes are also the subject of discussion in Technical Committee CEN/TC7 of the European Committee for Standardization (CEN) and these requireme
16、nts will also be incorporated into this standard when a suitable text has been agreed. NOTEAttention is drawn to BS 6222-1 which specifies co-ordinating dimensions for domestic kitchen equipment. A British Standard does not purport to include all the necessary provisions of a contract. Users of Brit
17、ish 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 document comprises a front cover, an inside front cover, pages i and ii, pages 1 to 6, an inside back cover and a back cove
18、r. 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. Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 24 08:30:57 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 1244-2:1988 BSI 07-1
19、9991 1 Scope This Part of BS 1244 specifies general, dimensional, performance and material requirements for sit-on and inset metal sinks for domestic purposes. Options are specified for sinks with or without overflow holes, tap holes or selected waste facilities. The standard does not specify method
20、s of supporting or methods of fixing and sealing sinks. Information to be provided by the purchaser is given in Appendix A. Some test methods for assessing performance requirements of enamelled sinks are described in Appendix B, Appendix C and Appendix D. NOTEThe titles of the publications referred
21、to in this standard are listed on the inside back cover. 2 Definitions For the purposes of this Part of BS 1244 the following definitions apply. 2.1 sit-on sink a sink which when installed fits on top of and lines up with a base unit of suitable dimensions, such that the aprons of the sink form a co
22、ntinuation of the sides of the base unit 2.2 inset sink a sink which is constructed to fit into an aperture in a work top, so that when installed it only projects above the working surface by an amount equal to its edge formed thickness 3 Designation 3.1 Sit-on sinks The sink shall be designated by
23、one of the following type references and by the co-ordinating sizes given in Table 1 (see also Figure 1). Type A/S: single bowl, single drainer. Right or left hand. Type B/S: single bowl, double drainer. Type C/S: double bowl, single drainer. Right or left hand. Type D/S: double bowl, double drainer
24、. NOTEHand of sink refers to position of drainer when viewed from the front. 3.2 Inset sinks The sink shall be designated by one of the following type references and by the dimensions given in Table 2 (see also Figure 2). Type A/I: Bowl without drainer. Type B/I: Single bowl, single drainer. Right o
25、r left hand. Type C/I: Single bowl, double drainer. Type D/I: Double bowl, without drainer. Type E/I: Double bowl, single drainer. Right or left hand. Type F/I: Double bowl, double drainer. NOTEHand of sink refers to position of drainer when viewed from the front. 4 Marking 4.1 Permanent marking Sin
26、ks shall be clearly and indelibly marked with the following information in such a way that it can be easily seen after installation: a) the manufacturers name or identification mark; b) the number and date of this British Standard, i.e. BS 1244-2:19881). 4.2 Other marking A warning label giving care
27、 instructions shall be fixed to the interior of the sink bowl with a water based adhesive. 5 Defects When examined by an unaided eye of an experienced observer, from a distance of 600 100 mm from exposed surfaces, the sink shall be free from visible defects (see also clause 7). Carry out the visual
28、examination with uniform illuminance at the surface of the sink of 300 lx and with the sink positioned so that it is between the light source and the observer. 6 Materials Sinks shall be manufactured from one of the following materials. a) Austenitic stainless steel complying with grades 304S11, 304
29、S15, 304S16 or 304S31 of BS 1449-2. The thickness of the material before forming shall be a minimum of 0.83 mm. 1) Marking BS 1244-2:1988 on or in relation to a product represents a manufacturers declaration of conformity, i.e. a claim by or on behalf of the manufacturer that the product meets the r
30、equirements of the standard. The accuracy of the claim is therefore solely the responsibility of the person making the claim. Such a declaration is not to be confused with third party certification of conformity, which may also be desirable. Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 24 08:
31、30:57 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 1244-2:1988 2 BSI 07-1999 b) First commercial quality enamelling steel complying with BS 1449-1 of minimum thickness 1.2 mm, which shall be free from laminations, surface cracks and drawing fractures. 7 Construction and finish 7.1 Finish NOTEThe fi
32、nish of sinks complying with clause 6 a), i.e. stainless steel, is not specified in this standard. However, sinks should be supplied with a bright finish to the upper surface and a matt finish to the inside surface of the bowl, unless otherwise specified by the purchaser at the time of enquiry or or
33、der (see Appendix A). 7.1.1 General. For sinks complying with clause 6 b), i.e. enamelling steel, the interior of the sink bowl, the upper surfaces of the drainer, the tap platform and the upper edges of the sink shall be evenly coated with vitreous enamel of a quality complying with 7.1.2 to 7.1.5.
34、 7.1.2 Surface finish. The gloss and opacity of the enamel shall be visually good. 7.1.3 Abrasion resistance. When tested as described in Appendix B, no scratching shall be visible when the test area is viewed through the microscope. 7.1.4 Alkali resistance. When tested as described in Appendix C, t
35、here shall be no discoloration or change of surface texture of the enamel. 7.1.5 Acid resistance. When tested as described in BS 1344-2, the enamel shall be in accordance with class A of that standard. 7.1.6 Hot water resistance. When tested as described in Appendix D there shall be no visible signs
36、 of attack or change of surface texture. 7.2 Edges After installation the sink shall be free from sharp edges. Sink bowls shall have rounded corners to facilitate cleaning. Folded corners shall be welded. 7.3 Hole edges The edges of any holes in the sink shall not show evidence of chips, cracks, or
37、any other defects which would impair its appearance or performance. 7.4 Joints When sinks are fabricated in two or more separate sections, they shall be produced in a manner to achieve a smooth surface joint. 7.5 Damping The underside of sinks shall be treated to minimize vibration and noise transmi
38、ssion. The materials used shall be rot and vermin proof. 8 Drainers Drainers shall be fluted or grooved and shall be inclined towards the sink bowl. 9 Waste outlets Sink bowls shall be designed with a fall to the waste outlet. The outlet shall be double recessed to allow piercing to accommodate eith
39、er a waste fitting complying with BS 3380, a basket strainer waste or a waste disposal unit. NOTEUnless otherwise specified by the purchaser at the time of enquiry or order (see Appendix A) the sink should be supplied with a waste fitting complying with BS 3380. 10 Overflows Sinks shall be provided
40、in either of the following conditions: a) without an overflow hole; b) with an overflow hole having a horizontal dimension not greater than 64 mm, and a vertical height not less than 15 mm giving an area of not less than 640 mm2, and located completely below the spillover level of the sink. NOTEUnle
41、ss otherwise specified by the purchaser at the time of enquiry or order (see Appendix A) the sink should be supplied with an overflow hole. 11 Tap holes Sinks shall be provided in one of the following conditions: a) without tap holes; b) with tap holes of 30 2 mm diameter with a distance of 180 2 mm
42、 between centres, or 300 2 mm between centres for round bowled sinks only, for nominal size high outlet pillar or high level combination taps; c) with a single tap hole of 35 2 mm diameter for high outlet mixer tap. The centres of tap holes shall be not more than 60 mm from the nearest back edge of
43、the bowl and not less than 50 mm to the front face of the upstand. NOTEUnless otherwise specified by the purchaser at the time of enquiry or order (see Appendix A) the sink should be supplied as described in item b). Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 24 08:30:57 GMT+00:00 2006, Unc
44、ontrolled Copy, (c) BSI BS 1244-2:1988 BSI 07-19993 12 Earth terminal Sinks shall be provided with an effective means of attaching a bonding conductor which shall be accessible to the electrician after the sink has been installed. This conductor shall be either a tag with a bolt size designation of
45、M6, in accordance with BS 4190, (8.3 mm minimum) clearance hole or an M6 bolt or threaded stud. The tag, bolt or stud shall be protected during any enamelling process to ensure that a good electrical contact can be made. 13 Dimensions 13.1 Bowls The depth of the sink bowl shall be 180 mm minimum, me
46、asuring from the top edge of the bowl to the deepest part, including the double recess for the waste outlet (see clause 9). The minimum internal dimensions, when measured on the bowl centre lines across the top of the bowl, shall be 380 mm 340 mm for rectangular bowls and 360 mm for round bowls. NOT
47、EThere is no restriction on bowl shape provided the minimum dimensions given in this clause are complied with. 13.2 Bowl locating limits The distance between the edge of the sink bowl and the end of the sink shall be 30 mm minimum. For sinks designed for use with a 600 mm wide worktop the distance b
48、etween the edge of the sink bowl and the front of the sink shall be 50 mm minimum and in the case of sinks designed for use with a 500 mm wide worktop the distance shall be 45 mm minimum. Both single and double bowl sinks shall be set a minimum of 10 mm from the gridline as shown in Figure 1 and Fig
49、ure 2. 13.3 Aprons and upstands for sit-on sinks 13.3.1 Aprons. Sit-on sinks shall be provided with an apron having a vertical dimension of 30 mm minimum, with a 90 return edge of 10 + 3, 0 mm. The vertical dimensions shall be measured from the spillover level. 13.3.2 Upstands. Sit-on sinks shall be provided in either of the following conditions: a) without an upstand; b) with an upstand having the dimensions given in 13.3.1. NOTEUnless otherwise specified by the purchaser at the time of enquiry or order (see Appendix A) sit-on sinks should be supplie