1、BS AU 223a:2006Design, construction performance and marking of vehicle support stands for cars and light vans SpecificationICS 43.100; 43.180NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDLicensed Copy: Wang Bin, na, Mon Mar 12 05:56:58 GMT+00:00 2007, Uncontro
2、lled Copy, (c) BSIPublishing and copyright informationThe BSI copyright notice displayed in this document indicates when the document was last issued. BSI 2006ISBN 0 580 49626 0The following BSI references relate to the work on this standard:Committee reference AUE/9Draft for comment 06/30142579 DCP
3、ublication historyFirst published February 1988Second edition July 1995Third (present) edition November 2006Amendments issued since publicationAmd. no. Date Text affectedBS AU 223a:2006Licensed Copy: Wang Bin, na, Mon Mar 12 05:56:58 GMT+00:00 2007, Uncontrolled Copy, (c) BSI BSI 2006 iBS AU 223a:20
4、06ContentsForeword ii1 Scope 12 Normative references 13 Terms and definitions 14 Construction and design 15 Structural integrity and factor of safety 36 Marking 57 Warning notice 5AnnexesAnnex A (normative) Classification of vehicles according to the Commission of the European Communities (EEC/Bruss
5、els) 7Annex B (normative) Test method for the determination of stability 7Annex C (normative) Test method for structural integrity of the engagement head 10Annex D (normative) Overload test method 11Annex E (normative) Test method for permanence of marking 13List of figuresFigure 1 Typical vehicle s
6、upport stands 4Figure 2 Projected plan area of typical engagement head 5Figure 3 Examples of pictograms used to give warning 6Figure B.1 Loading for stability test 9Figure C.1 Location of test rod over point Q on a typical engagement head 11Figure D.1 Location of test rod over axis on a typical enga
7、gement head 12Summary of pagesThis document comprises a front cover, an inside front cover, pages i and ii, pages 1 to 13 and a back cover.Licensed Copy: Wang Bin, na, Mon Mar 12 05:56:58 GMT+00:00 2007, Uncontrolled Copy, (c) BSIBS AU 223a:2006ii BSI 2006ForewordPublishing informationThis British S
8、tandard 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.SupersessionThis British Standard supersedes BS A
9、U 223a:1995, which is withdrawn.Information about this documentThis British Standard establishes a safe standard of performance for vehicle support stands and to ensure that they are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 do not fail. The standard also aims to ensure that the vehicle supp
10、ort stands are constructed and designed so that they are stable and do 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 edi
11、tion, 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 d
12、esirability 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 conventionsThe p
13、rovisions 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 elemen
14、t.Contractual and legal considerationsThis 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.Licensed Copy: Wang Bin, na, Mon Mar 12 05
15、:56:58 GMT+00:00 2007, Uncontrolled Copy, (c) BSI BSI 2006 1BS AU 223a:20061 ScopeThis British Standard specifies requirements for the design, construction, performance and marking of vehicle support stands for cars and light vans. 2 Normative referencesThe following referenced documents are indispe
16、nsable 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 vehicles3 Terms and defin
17、itionsFor the purposes of this British Standard, the following terms and definitions apply.3.1 vehicle support standdevice of fixed or adjustable height on which an appropriate part, e.g. axle, chassis, of a raised vehicle is supportedNOTE Where the device has an adjustable height, the height is not
18、 intended to be varied when the device is loaded. Some examples of typical vehicle support stands are illustrated in Figure 1.3.2 vehiclepassenger car or passenger car derivative of classification M1or N1. A towed unit such as a caravan or a trailer of classification O1 or O2NOTE See Annex A for the
19、 definitions of these vehicle categories.3.3 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 times3.4 tee section tooldevice used in conjunction with the test rig, to replicate the sill o
20、f a vehicle; used to impose a test load upon the support stand being examinedNOTE See Figure B.1.4 Construction and design4.1 ConstructionThere shall be a minimum area of 5 000 mm2in contact with the ground to avoid instability due to sinking.4.2 ClearanceThere shall be a minimum clearance of 25 mm
21、between the bottom of the upper column at its lowest possible setting and the ground.Licensed Copy: Wang Bin, na, Mon Mar 12 05:56:58 GMT+00:00 2007, Uncontrolled Copy, (c) BSIBS AU 223a:20062 BSI 20064.3 CapacityThe rated capacity of a vehicle support stand shall be not less than 1 000 kg, and not
22、more than 2 000 kg.4.4 Engagement headThe engagement head of a vehicle support stand shall:a) have a projected plan area of at least 3 000 mm2 (see Figure 2); andb) be of such a shape as to provide positive retention of the imposed load.When raised to the maximum height required by the test procedur
23、e 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 mechanismWhere 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 s
24、hall 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
25、 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 Nm when a vertical force of 1 000 N is applied through the centre of the engagement head.d) If it is possible to use the stand incorrectly assembled, it shall
26、conform to c) when tested incorrectly assembled. 4.6 FinishSurfaces 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.Licensed Copy: Wang Bin, na, Mon Mar 12 05:56:58 GMT+00:00 2007, Uncont
27、rolled Copy, (c) BSI BSI 2006 3BS AU 223a:20065 Structural integrity and factor of safety5.1 Structural integrity of the engagement headWhen 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
28、 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 Stability test5.2.1 Vertically imposed loadWhen tested by the method described in Annex B, the vehicle support stand shall not b
29、reak, 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 defe
30、cts 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 resistanceSubsequent to the test descri
31、bed 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 s5.3 Overload testWhen tested in accordance wit
32、h 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%.Licensed Copy: Wang Bin, na, Mon Mar 12 05:56:58 GMT+00
33、:00 2007, Uncontrolled Copy, (c) BSIBS AU 223a:20064 BSI 2006Figure 1 Typical vehicle support standsa) Fixed height type b) Pin typec) Screw type d) Ratchet typee) Folding typeLicensed Copy: Wang Bin, na, Mon Mar 12 05:56:58 GMT+00:00 2007, Uncontrolled Copy, (c) BSI BSI 2006 5BS AU 223a:20066 Marki
34、ngEach 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 manufacturers mark as a means of identifying the manufacturer, importer or other supplier of the stand.c) The rated capacity stated as “SWL” in
35、kilograms.All such markings shall be legible when tested in accordance with Annex E.7 Warning noticeA 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
36、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 manufacturers handbook for guidance.f) Exercise extra care when using a three wheeled vehicle or a traile
37、r.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 3 as an example.1)Marking BS AU 223a:2006 on or in relation to a product represents a manufacturers declaration of conformity, i.e. a claim by or on
38、behalf of the manufacturer that the product meets the requirements of the standard. The accuracy of the claim is solely the claimants responsibility. Such a declaration is not to be confused with third-party certification of conformity.Figure 2 Projected plan area of typical engagement headLicensed
39、Copy: Wang Bin, na, Mon Mar 12 05:56:58 GMT+00:00 2007, Uncontrolled Copy, (c) BSIBS AU 223a:20066 BSI 2006Figure 3 Examples of pictograms used to give warningCORRECTSTAGE 1CORRECTSTAGE 2AINCORRECT CORRECTSTAGE 2BCORRECTINCORRECTAlways chock wheelsthat remain on groundLicensed Copy: Wang Bin, na, Mo
40、n Mar 12 05:56:58 GMT+00:00 2007, Uncontrolled Copy, (c) BSI BSI 2006 7BS AU 223a:2006Annex 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
41、M1Vehicles used for the carriage of passengers and comprising no more than eight seats in addition to the drivers seat.Category N Motor vehicles with at least four wheels used for the carriage of goods.Category N1Vehicles used for the carriage of goods and having a maximum mass not exceeding 3.5 ton
42、nes.Category O Trailers (including semi-trailers).Category O1Trailers with a maximum mass not exceeding 0.75 tonnes.Category O2Trailers 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 Co
43、mmission for Europe (ECE/Geneva).Annex B (normative) Test method for the determination of stabilityB.1 PrincipleThe 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
44、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 ApparatusB.2.1 Hydraulic test rig, or other suitable device capable of applying the appropriate fo
45、rce, 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 i
46、n 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.Licensed Copy: Wang Bin, na, Mon Mar 12 05:56:58 GMT+00:00 2007, Uncontrolled Copy, (c) BSIBS AU 223a:20068 BSI 2006B.3 Pr
47、ocedureB.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 adjuste
48、d 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 i
49、t 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
