30142580 pdf BS AU 223a 2006 Design, construction performance and marking of vehicle support stands for cars and light vans – Specification ICS 43 100; 43 180 NO COPYING WITHOUT BSI PERMISSION EXCEPT[.]
BS AU 223a:2006 BRITISH STANDARD Design, construction performance and marking of vehicle support stands for cars and light vans – Specification ICS 43.100; 43.180 Confirmed December 2011 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BS AU 223a:2006 Publishing and copyright information The BSI copyright notice displayed in this document indicates when the document was last issued © BSI 2006 ISBN 580 49626 The following BSI references relate to the work on this standard: Committee reference AUE/9 Draft for comment 06/30142579 DC Publication history First published February 1988 Second edition July 1995 Third (present) edition November 2006 Amendments issued since publication Amd no Date Text affected BS AU 223a:2006 Contents Foreword ii Scope Normative references Terms and definitions Construction and design Structural integrity and factor of safety Marking Warning notice Annexes Annex A (normative) Classification of vehicles according to the Commission of the European Communities (EEC/Brussels) Annex B (normative) Test method for the determination of stability Annex C (normative) Test method for structural integrity of the engagement head 10 Annex D (normative) Overload test method 11 Annex E (normative) Test method for permanence of marking 13 List of figures Figure – Typical vehicle support stands Figure – Projected plan area of typical engagement head Figure – Examples of pictograms used to give warning Figure B.1 – Loading for stability test Figure C.1 – Location of test rod over point Q on a typical engagement head 11 Figure D.1 – Location of test rod over axis on a typical engagement head 12 Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, pages to 13 and a back cover â BSI 2006 ã i BS AU 223a:2006 Foreword Publishing information This British Standard was published by BSI and came into effect on 30 November 2006 It was prepared by Technical Committee AUE/9, Automobile details and accessories A list of organizations represented on this committee can be obtained on request to its secretary Supersession This British Standard supersedes BS AU 223a:1995, which is withdrawn Information about this document This British Standard establishes a safe standard of performance for vehicle support stands and to ensure that they are sufficiently robust so that under normal use they not fail The standard also aims to ensure that the vehicle support stands are constructed and designed so that they are stable and not damage the vehicle when used in the intended manner It constitutes a technical revision undertaken to specify requirements concerning stability and improve and clarify other areas arising from the application of the first edition, which fails to address certain aspects of some products which are now in circulation It also aims to take account of changes in the common method of use resulting from current vehicle design Product certification/inspection/testing Users of this British Standard are advised to consider the desirability of third-party certification/inspection/testing of product conformity with this British Standard Users seeking assistance in identifying appropriate conformity assessment bodies or schemes may ask BSI to forward their enquiries to the relevant association Presentational conventions The provisions of this standard are presented in roman (i.e upright) type Its requirements are expressed in sentences in which the principal auxiliary verb is “shall” Commentary, explanation and general informative material is presented in smaller italic type, and does not constitute a normative element Contractual and legal considerations This publication does not purport to include all the necessary provisions of a contract Users are responsible for its correct application Compliance with a British Standard cannot confer immunity from legal obligations ii ã â BSI 2006 BS AU 223a:2006 Scope This British Standard specifies requirements for the design, construction, performance and marking of vehicle support stands for cars and light vans Normative references The following referenced documents are indispensable for the application of this document For dated references, only the edition cited applies For undated references, the latest edition of the referenced document (including any amendments) applies BS EN 228:1993, Specification for unleaded petrol (gasoline) for motor vehicles Terms and definitions For the purposes of this British Standard, the following terms and definitions apply 3.1 vehicle support stand device of fixed or adjustable height on which an appropriate part, e.g axle, chassis, of a raised vehicle is supported NOTE Where the device has an adjustable height, the height is not intended to be varied when the device is loaded Some examples of typical vehicle support stands are illustrated in Figure 3.2 vehicle passenger car or passenger car derivative of classification M1 or N1 A towed unit such as a caravan or a trailer of classification O1 or O2 NOTE See Annex A for the definitions of these vehicle categories 3.3 3.4 rated capacity (SWL or Safe Working Load) capacity rated by the manufacturer as the maximum load that is to be supported by a single vehicle support stand at all times tee section tool device used in conjunction with the test rig, to replicate the sill of a vehicle; used to impose a test load upon the support stand being examined NOTE See Figure B.1 Construction and design 4.1 Construction There shall be a minimum area of 000 mm2 in contact with the ground to avoid instability due to sinking 4.2 Clearance There shall be a minimum clearance of 25 mm between the bottom of the upper column at its lowest possible setting and the ground â BSI 2006 ã BS AU 223a:2006 4.3 Capacity The rated capacity of a vehicle support stand shall be not less than 000 kg, and not more than 000 kg 4.4 Engagement head The engagement head of a vehicle support stand shall: a) have a projected plan area of at least 000 mm2 (see Figure 2); and b) be of such a shape as to provide positive retention of the imposed load When raised to the maximum height required by the test procedure given in Annex B, there shall be a total lateral movement of the engagement head of not more than 10 mm 4.5 Height adjustment mechanism Where a vehicle support stand incorporates a means of adjusting its height, the height adjustment mechanism shall conform to a) to c), and d) if applicable a) It shall be permanently attached to the stand NOTE For a stand with a pin type adjustment, the pin is to be attached to the stand by means of a metal linkage, e.g chain or flexible wire b) It shall be capable of easy and positive adjustment when the stand is not loaded c) With the stand on a horizontal base it shall not be possible to operate the height adjustment mechanism with a direct force of less than 100 N or a torque of less than 30 N·m when a vertical force of 000 N is applied through the centre of the engagement head d) If it is possible to use the stand incorrectly assembled, it shall conform to c) when tested incorrectly assembled 4.6 Finish Surfaces shall not have any hazardous projections All sharp edges shall be removed by rounding, bevelling, or other means of deburring to prevent injury to the operator ã â BSI 2006 BS AU 223a:2006 Structural integrity and factor of safety 5.1 Structural integrity of the engagement head When tested in accordance with Annex C, a vehicle support stand engagement head shall sustain a force equal to 110% of the rated capacity for a minimum period of 60 s with no breakage or fracture NOTE Permanent deformation of the engagement head is permitted so long as the engagement head is capable of supporting the load applied 5.2 5.2.1 Stability test Vertically imposed load When tested by the method described in Annex B, the vehicle support stand shall not break, fracture, or become permanently deformed, and shall remain stable for a minimum period of 60 s, after a vertical load (Lv) equivalent to 110% of the rated capacity has been achieved After the stipulated test period, the load (Lv) shall be removed and the vehicle support stand examined for defects or potential failure If the support stand is in good condition, the same sample shall be used for the rotational resistance test (5.2.2) NOTE Minor deformation might occur at the point of contact of the tee section tool and is permissible 5.2.2 Rotational resistance Subsequent to the test described in 5.2.1 a rotational force (Lr) equal to 10% of Lv is to be applied (via the tee tool) to the same test sample, the vehicle support stand shall not break, fracture, or become permanently deformed, and shall remain stable for a minimum period of 60 s 5.3 Overload test When tested in accordance with Annex D, a vehicle support stand shall withstand a load of twice the rated capacity with no sign of breakage or fracture Some deformation is permitted but the overall height of the stand (as measured in D.3.7) shall not reduce by more than 1% â BSI 2006 ã BS AU 223a:2006 Figure Typical vehicle support stands a) Fixed height type b) Pin type c) Screw type d) Ratchet type e) Folding type ã â BSI 2006 BS AU 223a:2006 Marking Each vehicle support stand shall be permanently marked with the following information a) The number of this British Standard, i.e BS AU 223a:19951) b) A manufacturer’s mark as a means of identifying the manufacturer, importer or other supplier of the stand c) The rated capacity stated as “SWL” in kilograms All such markings shall be legible when tested in accordance with Annex E Warning notice A warning notice shall be attached to each vehicle support stand giving at least the following warnings a) Use only as specified by the manufacturer b) Use no more than a single pair of stands c) Use on a hard, level surface, e.g concrete d) Securely chock wheels remaining on the ground e) Make sure that each stand is securely located under a strong point on the vehicle; consult the vehicle manufacturer’s handbook for guidance f) Exercise extra care when using a three wheeled vehicle or a trailer g) Upper and lower columns are to be used only as a pair as supplied NOTE Use of pictograms to support the above warnings is recommended See Figure as an example Figure Projected plan area of typical engagement head 1) Marking BS AU 223a:2006 on or in relation to a product represents a manufacturer’s declaration of conformity, i.e a claim by or on behalf of the manufacturer that the product meets the requirements of the standard The accuracy of the claim is solely the claimant’s responsibility Such a declaration is not to be confused with third-party certification of conformity â BSI 2006 ã BS AU 223a:2006 Figure Examples of pictograms used to give warning CORRECT CORRECT STAGE STAGE 2A INCORRECT CORRECT STAGE 2B INCORRECT CORRECT Always chock wheels that remain on ground ã â BSI 2006 BS AU 223a:2006 Annex A (normative) Classification of vehicles according to the Commission of the European Communities (EEC/Brussels) Category M Motor vehicles with at least four wheels used for the carriage of passengers Category M1 Vehicles used for the carriage of passengers and comprising no more than eight seats in addition to the driver’s seat Category N Motor vehicles with at least four wheels used for the carriage of goods Category N1 Vehicles used for the carriage of goods and having a maximum mass not exceeding 3.5 tonnes Category O Trailers (including semi-trailers) Category O1 Trailers with a maximum mass not exceeding 0.75 tonnes Category O2 Trailers with a maximum mass not exceeding 3.5 tonnes NOTE These definitions of vehicle category are also used, with very slight editorial differences, by the UN Economic Commission for Europe (ECE/Geneva) Annex B (normative) B.1 Test method for the determination of stability Principle The vehicle support stand is loaded with the base at an angle of 10° to the horizontal as a measure of the ability of a vehicle support stand to resist tipping as a result of its geometric design (see Figure B.1) Furthermore, a rotational force is introduced to measure the ability of the support stand to resist the torque induced by subsequently jacking another corner of the vehicle B.2 Apparatus B.2.1 Hydraulic test rig, or other suitable device capable of applying the appropriate force, having a means of indicating the force being applied; fitted with a rotatable mandrel, having a means of indicating the force required to cause rotation and a means of inclining the base at an angle of 10° to the horizontal B.2.2 “Tee” section tool (having dimensions conforming to those shown in Figure B.1) to be fitted to the rotatable mandrel so as to impose the test force onto the head of the support stand B.2.3 A stopwatch or means capable of keeping time for 60 s â BSI 2006 ã BS AU 223a:2006 B.3 Procedure B.3.1 Position the vehicle support stand on the inclined base so that it is in the least stable configuration (see note) whilst having the blade of the “Tee” section tool perpendicular to trough of the engagement head NOTE The least stable condition is normally when the stand has been adjusted to its highest setting B.3.2 Align the axis of the “Tee” section tool vertically so that it passes through the geometric centre of the engagement head (see Figure B.1) B.3.3 Gradually apply a force via the “Tee” section tool to the engagement head B.3.4 Continue to increase the force (Lv) until it is equivalent to 110% of the rated capacity of the vehicle support stand or until some part of the stand breaks, fractures or becomes permanently deformed or becomes unstable B.3.5 Maintain this force for a minimum of 60 s B.3.6 Remove the force and examine the vehicle support stand to observe whether or not any part of the stand has broken, fractured or become permanently deformed If the support stand is in good condition, the same sample is to be used for the rotational resistance test (B.3.7) B.3.7 Utilizing the same sample (if it has passed examination) as in B.3.6, re-apply the vertical force (Lv) and then apply a rotational force (Lr) at a leverage of 1m, for a minimum period of 60 s NOTE For example a support stand rated at 500 kg (or 000 kg per pair): Lv = 110% of 500 Kg = 650 kg Lr = 10% of Lv (@ 1.0m) = 165 kg/m B.3.8 Remove the force and examine the vehicle support stand to observe whether or not any part of the stand has broken, fractured or become permanently deformed ã â BSI 2006 BS AU 223a:2006 Loading for stability test 50 minimum X maximum Figure B.1 50 minimum X A A 10º 10º © BSI 2006 • BS AU 223a:2006 Annex C (normative) C.1 Test method for structural integrity of the engagement head Principle A vehicle support stand is subjected to a specified eccentric force which is applied to the end of the engagement head C.2 Apparatus C.2.1 Hydraulic test rig, or other suitable device capable of applying the appropriate force, having a means of indicating the force being applied C.2.2 A square ended rigid 50 mm diameter rod, through which the force can be transmitted to the engagement head C.2.3 Large, hard, flat surface, on which the vehicle support stand is stood when tested C.2.4 A stopwatch or means capable of keeping time for 60 s C.3 Procedure C.3.1 Position the vehicle support stand on a large, hard, flat surface C.3.2 Align the 50 mm diameter rod vertically so that its axis passes through the point Q on the periphery of the engagement head (see Figure C.1) C.3.3 Gradually apply a force via the rod to the engagement head C.3.4 Continue to increase the force until it is equivalent to 110% of the rated capacity of the vehicle support stand and maintain this force for a minimum of 60 s C.3.5 Remove the force and examine the engagement head of the vehicle support stand to observe whether or not any part of the engagement head has broken or fractured 10 ã â BSI 2006 BS AU 223a:2006 Figure C.1 Annex D (normative) D.1 Location of test rod over point Q on a typical engagement head Overload test method Principle A force is applied to the centre of the engagement head of a vehicle support stand and the amount of permanent deflection of the vehicle support stand is measured D.2 Apparatus D.2.1 Hydraulic test rig, or other suitable device capable of applying the appropriate force, having a means of indicating the force being applied D.2.2 A 50 mm diameter square ended rigid rod, through which the force can be transmitted to the engagement head D.2.3 Large, hard, flat surface, on which the vehicle support stand is stood when tested D.2.4 Means of measuring the overall height of the stand, before and after test D.2.5 A stopwatch or means capable of keeping time for 60 s â BSI 2006 ã 11 BS AU 223a:2006 D.3 Procedure D.3.1 For an adjustable height stand, extend the stand to its maximum possible height NOTE For a pinned column vehicle support stand, if it is possible to use the stand with the upper column resting on top of the pin, rather than having the pin pass through the upper column, then this might represent the maximum possible height for the purpose of this test This is notwithstanding the fact that the stand was not intended to be used in this manner by the manufacturer D.3.2 Align the 50 mm rod vertically so that its axis passes through the centre of the engagement head D.3.3 Measure the height of the stand from the centre of the engagement head to the base plane Figure D.1 Location of test rod over axis on a typical engagement head D.3.4 Gradually apply a force to the centre of the engagement head D.3.5 Continue to increase the force gradually until the vehicle support stand is loaded to twice the rated capacity Maintain the load equivalent to twice the rated capacity for at least 60 s D.3.6 Release the load D.3.7 Measure the height from the centre of the engagement head to the base plane with the load released D.3.8 Examine the vehicle support stand for breaks and fractures 12 ã â BSI 2006 BS AU 223a:2006 Annex E (normative) E.1 Test method for permanence of marking Principle A sample including the marked area of the stand is immersed in petrol and detergent solution and subjected to rubbing E.2 Apparatus and reagents E.2.1 Test sample, a sample stand taken from a batch as specified by the manufacturer’s quality control procedures or customer requirements For ease of handling, a section of the stand containing the marked area can be cut or removed from the sampled stand E.2.2 Immersion tanks, to permit complete immersion of the test sample in both petrol and detergent solution at a temperature of 20 °C ± °C E.2.3 Enough unleaded petrol conforming to BS EN 228 to immerse the test sample E.2.4 A stopwatch or means capable of keeping time for 10 mins E.2.5 Mutton cloth E.2.6 A current of dry air, capable of drying the test sample E.2.7 Detergent 0.5% of the volume of the water within the tank E.3 Procedure E.3.1 Immerse the test sample in commercial unleaded petrol to BS EN 228 for 10 at 20 °C ± °C Remove from the petrol and rub the markings over an area of approximately 10 mm × 50 mm with firm hand pressure for 30 s using mutton cloth dampened in the petrol E.3.2 Dry the sample thoroughly in a current of dry air then immerse in clean water into which 0.5% by volume of detergent has been thoroughly mixed Keep the sample immersed at 20 °C ± °C for 24 h Remove from the water and rub the markings over an area of approximately 10 mm × 50 mm with firm hand pressure for 30 s using mutton cloth dampened in the water/detergent mixture E.3.3 Examine the test area for legibility and permanence of the marking message NOTE Suitable fume extraction and other safety precautions should be employed during this procedure â BSI 2006 ã 13 BS AU 223a:2006 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 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