INTERNATIONAL STANDARD (ISO) 2958 INTERNATIONAL ORGANIZATION FOR STANDARDIZATION·MEKAYHAPOAHA OPTAHW3ALIM IO CTAHAAPTW3ALIWИ·ORGANISATION INTERNATIONALE DE NORMALISATION Road vehicles -- Exterior protection for passenger cars First edition- 1973-09-01 2958-1973(E) UDC'629.113 Ref.No.1SO2958-1973(E) Descriptors:automobiles,bumpers,tests,shocktests. FOREWORD IsO (the International Organization for Standardization) is a worldwide federation of national standards institutes (isO Member Bodies). The Work of developing International Standards is carried out through ISo Technical Committees. Every Member Body interested in a subject for which a Technical Committee has been set up has the right to be represented on that Committee. International organizations, governmental and non-governmental, in liaison with iso, also take part in the work. Draft International Standards adopted by the Technical Committees are circulated to the Member Bodies for approval before their acceptance as International Standards by the ISO Council. Internationa! Standard ISO 2958 was drawn up by Technical Committee IS0/TC 22, Road vehicles, and circulated to the Member Bodies in August 1972. It has been approved by the Member Bodies of the following countries : Austria Hungary South Africa, Rep.of Belgium Ireland Sweden Canada italy Switzerland Czechoslovakia Mexico Thailand Egypt, Arab Rep. of Netherlands Turkey France Poland United Kingdom Germany Romania The Member Bodies of the following countries expressed disapproval of the documentontechnical grounds : Australia Japan U.S.A. Internationaf Organization for Standardization, 1973 Printed in Switzerland ISO2958-1973 (E) INTERNATIONALSTANDARD Road vehicles - Exterior protection for passenger cars 1 SCOPE Number of Number of seating Distribution 1.1 This International Standard specifies the character- positions passengers istics as regards exterior protection for passenger cars. 2 and 3 2 2 in the front seats 1.2 The aim is to provide protection at the front and rear 4 and 5 3 2 in the front seats of the vehicle, of certain mechanical elements and, above 1 in the back seats all, for lighting and signalling devices in cases of collision at 6 and 7 low speed during parking manoeuvres. 4 2 in the front seats 2 in the extreme back seats 8 and 9 5 2 in the front seats 1.3 Exterior protection is assured by protective devices, 3 in the extreme back seats. which are essentially eiements locatedatthe front and rear When the rear row of seats has only ends of vehicles and designed in such a way as to allow 2 seating positions, one person shall contacts and small shocks to occur without causing any beonthesecondrowfromtherear serious damage. Themainobjectiveistofixprotectivedevicesata common 3.3 vehicle corner : The part of the vehicle contacted by a reference height, taking into account safety requirements vertical plane that is tangent to the vehicle and at an angle and all aspects of vehicle design. of 60° with the longitudinal median plane of the vehicle. 2 FIELDOFAPPLICATION 3.4 reference height : The height above the ground, at which the vehicle should embody sufficient protective The provisions of this International Standard apply to devices, both at kerb load and design load. passenger cars with up to and including 9 designated seating positions, including that of the driver. This reference height is that of the horizontal plane passing through the reference line of the test device described in 4.2. 3 DEFINITIONS 3.5 reference. line: The intersection of the horizontal 3.1 kerb load : The mass of the vehicle when it is loaded plane of symmetry of the impact contour with the impact under loading conditions indicated in ISO/R 1176, clause contour itself, plane A of the impact device being vertical. 4.6 (plus the spare wheel and any accessory equipment). 4 CONDITIONSOFTEST 3.2 design load : The mass of the vehicle when it is loaded to the conditions prescribed in 3.1, increased by the mass 4.1 General of passenge