BS-3619-1976.pdf

BRITISH STANDARD BS 3619:1976 Incorporating Amendment No. 1 Specification Mobile infusion stands UDC 615.473:615.38 Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 29 03:27:10 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 3619:1976 This British Standard, having been prepared under the direction of the Committee for Tubular Framed Equipment for Hospitals, was published under the authority of the Executive Board on 30 April 1976 © BSI 08-1999 First published May 1963 First revision April 1976 The following BSI references relate to the work on this standard: Committee reference SGC/33 Draft for comment 73/61784 DC ISBN 0 580 09002 7 Co-operating organizations The Committee for Tubular Framed Equipment for Hospitals, under whose supervision this British Standard was prepared, consists of representatives from the following Government departments and professional, scientific and industrial organizations: British Rubber Manufacturers Association British Surgical Trades Association (Inc.) Department of Health and Social Security Department of the Environment Institute of Purchasing and Supply King Edwards Hospital Fund for London National Association of Hospital Supplies Officers Royal College of Midwives Royal College of Nursing and National Council of Nurses of the United Kingdom Royal College of Physicians of London Teaching Hospitals Association Amendments issued since publication Amd. No.Date of issueComments 4321August 1983Indicated by a sideline in the margin Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 29 03:27:10 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 3619:1976 © BSI 08-1999i Contents Page Co-operating organizationsInside front cover Forewordii 1Scope1 2References1 3Construction1 4Materials and dimensions1 5Range of heights1 6Pole for infusion containers1 7Tubular column1 8Base2 9Castors2 10Stability2 11Finish2 12Marking2 Appendix A Stability test3 Figure 1 Apparatus for stability test3 Figure 2 Dimensions of hook bar and range of heights to the effective suspension point3 Figure 3 Dimensions of hook bars for four containers3 Publications referred toInside back cover Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 29 03:27:10 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 3619:1976 ii © BSI 08-1999 Foreword This British Standard is one of a series relating to tubular framed equipment for hospitals. It is a revision of BS 3619 “Light mobile transfusion stands and transfusion poles for attachment to hospital beds”, and the principal changes concern dimensional and stability requirements. 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 document comprises a front cover, an inside front cover, pages i and ii, pages 1 to 4, 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. Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 29 03:27:10 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 3619:1976 © BSI 08-19991 1 Scope This British Standard specifies the basic requirements relating to materials, dimensions, construction and electrical safety precautions of mobile infusion stands for use in hospitals and infusion poles for attachment to hospital beds and other equipment. NOTEAttention is drawn to BS 4886-1 and BS 4886-2. 2 References The titles of the British Standards referred to in this standard are listed on the inside back cover. 3 Construction 3.1 General. Each mobile infusion stand (see Figure 1) shall comprise: a) a stainless steel pole with either two or four hooks for carrying the infusion containers as illustrated in Figure 2 or Figure 3; b) a tubular column (which may be of steel or stainless steel) to support the pole; c) a base. 3.2 Welding 3.2.1 Welding shall comply with the requirements of BS 5135 or BS 3019-2, as appropriate. 3.2.2 Stainless steel tube shall be either inert-gas arc welded or resistance welded. For inert-gas arc welding the filler rod shall comply with type 347596 specified in Table 1 of BS 2901-2:1970. 3.2.3 There shall be complete fusion of metal for all welded joints. Sufficient welding metal shall be applied to allow for subsequent dressing smooth all over, without weakening the joint. There shall be no sharp edges and no crevices which may harbour dirt or foreign matter. 4 Materials and dimensions 4.1 The pole for carrying infusion containers shall be of bright drawn stainless steel rod, steel 302S25 or steel 304S15, complying with the requirements of BS 970-4:1970 (cold drawn conditions) of diameter 12 mm + 1 mm 0 mm. 4.2 The hooks shall be of bright drawn stainless steel rod, steel 302S25 or steel 304S15, complying with the requirements of BS 970-4 (cold drawn conditions) not less than 8 mm in diameter, as shown in Figure 2. 4.3 The tubular column which supports the pole shall be either steel or stainless steel having a minimum outside diameter of 30 mm and a minimum thickness of 1.6 mm. 4.4 If steel tubing is used it shall comply with the requirements for any of the types and grades described in BS 1775 ERW and stainless steel shall comply with the requirements of BS 3014:1958 (grade 1). 4.5 The base for mobile infusion stands shall be of a material suitable for the service for which the equipment is intended and shall have a durability at least equal to that of the materials specified in 4.3. The material used shall comply with the requirements of any relevant British Standards. If iron castings are used they shall comply with the requirements of BS 309 or of BS 310. 5 Range of heights The range of heights, measured from the floor to the effective suspension points of the hook bars shall be 1.75 m minimum to 2.75 m maximum. 6 Pole for infusion containers 6.1 Each stand shall be provided with a detachable pole as shown in Figure 2 for carrying two infusion containers, but at the option of the purchaser provision may be made for four containers, as shown in Figure 3. 6.2 The overall length of the pole for mobile infusion stands will depend upon the design of base employed. Any pole shall however be long enough to ensure that, if the pole were accidentally released, the fingers could not be trapped between the hook bar and the top of the column. The lower 100 mm of the pole shall be permanently marked to illustrate the maximum height of adjustment. 6.3 The top shall be in the form of a horizontally mounted bar or bars formed to a hook at each end and welded at the mid-point to the top of the pole. The effective suspension points of the hooks shall be as shown in Figure 2 and Figure 3. 7 Tubular column 7.1 The column shall be bossed at its upper end so as to maintain the pole vertical at all heights. The clearance between the pole and the boss shall not exceed 0.5 mm. 7.2 Internally the column shall be provided at its lower end with a silencing device of a depth not less than 50 mm forming a cushion between the base of the column and the lower end of the infusion pole. Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 29 03:27:10 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 3619:1976 2 © BSI 08-1999 7.3 The column shall be equipped with means of retaining the infusion pole at any desired height within its range and providing both easy adjustment and positive locking. The grip shall be transmitted without scoring or otherwise damaging the surface of the pole. If a screw type locking device is used the thread shall be 8 mm × 1.25 mm pitch, complying with the requirements of BS 3643. 8 Base 8.1 The dimension from the vertical centre line of the infusion pole to the centre line of the castor vertical pivot shall be between 205 mm and 255 mm. 8.2 The overall width of the base, measured through its vertical centre line, shall not exceed 660 mm. 8.3 The base shall maintain the column in a vertical position. 8.4 Mobile infusion stands may be made suitable for dismantling (knockdown) for ease of transport, but if the tubular column is detachable from the base, it shall be secure when located in position. NOTEThe design of the base has not been specified but the purchaser might wish to consider the geometry of the base best suited to his requirements. 9 Castors 9.1 Each stand shall be fitted with castors complying with the requirements of BS 2099-1. They shall be not less than 50 mm diameter. 9.2 The castor tyres shall be of antistatic rubber composition, and when tested using the procedure given in A.4.11 of BS 2050:1978, both readings shall fall below 1047. 10 Stability The design and weight of the stand shall be such that it remains stable when tested by the method described in Appendix A. NOTEIt is essential that care be taken to ensure that if ancillary equipment is attached the stability of the stand is not impaired. 11 Finish 11.1 Completed stand. The completed stand shall be free from sharp edges and corners. 11.2 Tubular column and base 11.2.1 If of steel, the base and the tubular column shall be finished with a good quality stoving enamel or an epoxide based enamel or powder. Prior to applying the finish, all rust, grease, scale or surface adhesions of a like nature shall be removed and all welds shall be properly dressed and cleaned up and the surface given a coat of inhibitive primer. 11.2.2 The finishing coat shall be stoved strictly in accordance with the paint manufacturers stoving schedule and shall provide a dry film thickness of not less than 0.025 mm. The finish shall be smooth, free from dust, runs and any other such defects. NOTEIt is important that the stand should be stoved before castors are fitted. Holes to receive screws should be reamed or re-tapped after stoving to remove any enamel or other insulating material from the hole. The importance of this procedure is stressed since the conductive qualities of the castors could be destroyed by an insulating coating. 11.3 Performance tests. The finish shall comply with the requirements of 11.3.1 to 11.3.4. 11.3.1 Resistance to bend effects. The finish on the test panel shall withstand bending over a 12 mm diameter mandrel without cracking or loss of adhesion when tested in accordance with BS 3900-E1 using a steel panel and the type 2 apparatus. 11.3.2 Scratch resistance. The finish on the test panel shall not be penetrated when tested in accordance with BS 3900-E2 using a needle load of 3 000 g. 11.3.3 Impact resistance. The finish on the test panel shall not rupture when tested in accordance with BS 3900-E3 at an indentation depth of 3 mm. 11.3.4 Resistance to cupping effect. The finish of the test panel shall not crack or become detached from the metal substrate when tested in accordance with BS 3900-E4 at an indentation depth of 3 mm. 11.4 Stainless steel finish. Stainless steel finish shall be polished to match finish No 8 of BS 1449-2:1975. 12 Marking Mobile infusion stands complying with the requirements of this British Standard shall be clearly and indelibly marked with the following. a) The name, trade mark or other means of identification of the manufacturer. b) The year of manufacture. c) The number of this British Standard, i.e. BS 3619. Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 29 03:27:10 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 3619:1976 © BSI 08-19993 Appendix A Stability test (See clause 10) The infusion pole shall be adjusted to a height of 2.7 m and so arranged that a hook bar is approximately at right angles to the stop strip as illustrated in Figure 1. A 1 000 ml MRC bottle filled with water shall be suspended from the hook. The stand shall be placed with two adjacent castor wheels resting against a positive stop on a flat base at an angle of 9° to the horizontal. Figure 1 Apparatus for stability test Figure 2 Dimensions of hook bar and range of heights to the effective suspension point Figure 3 Dimensions of hook bars for four containers Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 29 03:27:10 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 4 blank Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 29 03:27:10 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 3619:1976 © BSI 08-1999 Publications referred to This standard makes reference to the following British Standards: BS 309, Whiteheart malleable iron castings. BS 310, Blackheart malleable iron castings. BS 970, Wrought steels in the form of blooms, billets, bar and forgings. BS 970-4, Stainless, heat resisting and valve steels. BS 1449, Steel plate, sheet and strip. BS 1449-2, Stainless and heat resisting steel plate, sheet and strip. BS 1453, Filler materials for gas welding. BS 1775, Steel tubes for mechanical, structural and general engineering purposes. BS 2050, Electrical resistance of conductive and anti-static products made from flexible polymeric material. BS 2099, Castors. BS 2099-1, Castors for hospital equipment for ward and theatre use. BS 2901, Filler rods and wires for gas-shielded arc welding. BS 2901-2, Austenitic stainless steels. BS 3014, “As welded” and cold drawn welded austenitic stainless steel tubes for mechanical, structural and general engineering purposes. BS 3019, General recommendations for manual inert-gas tungsten-arc welding. BS 3019-2, Austenitic stainless and heat-resisting steels. BS 3643, ISO metric screw threads. BS 3900, Methods of test for paints. BS 3900-E1, Bend test (cylindrical mandrel). BS 3900-E2, Scratch test. BS 3900-E3, Impact (falling weight) resistance. BS 3900-E4, Cupping test. BS 4886, Hospital bedsteads. BS 4886-1, Bedsteads of variable height. BS 4886-2, Bedsteads of fixed height. BS 5135, Metal-arc welding of carbon and carbon manganese steels. Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 29 03:27:10 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 3619:1976 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter. Revisions British Standards are updated by amendment or revision. Users of British Standards 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 inaccuracy or ambiguity while using this British Standard would inform the Secretary of the technical committee responsible, the identity of which can be found on the inside front cover. Tel: 020 8996 9000. Fax: 020 8996 7400. 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