4.5.3.  It must be possible to separate the safety belt and anchorage without causing any damage to the latter. 

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5. TESTING 

5.1.  General  

5.1.1.  Subject to application  of he provisions of point  5.2 and at the request of the manufacturer: 

5.1.1.1.  the  tests  may  be   carried  out  on  either  a   vehicle  structure  or  a 

completely  finished vehicle; 

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5.1.1.2.  the tests may be restricted to the anchorages relating to only one seat or one 

group of seats on the  conditions that: 

—    the anchorages concerned have the same structural characteristics as  the  

anchorages  relating  to  the  other  seats  or  groups  of  seats; and 

—  where such anchorages are fitted totally or partially on the seat or group 

ofseats, the structural char acteristics ofthe seat or  group of seats are the same 

as those for the other seats or groups of seats; 

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►M4 5.1.1.3.  ◄ windows and doors may or may not be fitted and/or closed; 

►M4 5.1.1.4.  ◄ any fitting provided in the vehicle type and likely to contribute to  the rigidity of the 

vehicle structure may be fitted. 

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►M4 5.1.1.3.  ◄ 

►M4 5.1.1.4.  ◄ 

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5.1.2. The seats shall be fitted and  shall be placed in the position for driving or use chosen by the technical service conducting approval tests to give the most adverse conditions with respect 

to the strength of the system . The position of the seats shall be stated in the report. The seat back shall, if its inclination is adjustable, be locked as specified by the manufacturer or, in the absence of any such spec ification, in a position corre sponding to an effective seat-back angle as close as possible to 25o for vehicles of categories M1 and N1 and to 15 o for vehicles of all other categories. 

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5.2.  Securing of the vehicle 

5.2.1. The method used to secure the vehicle during the test shall  not be such as to strengthen the belt anchorages or the belt anchorage areas or to lessen the normal deformati on of the structure. 

5.2.2. A securing device shall be regarded as satisfactory if it produces no effect on an area 

extending over the whole width of  the structure and if the vehicle or the structure is blocked 

or fixed in front at a distance of not less  than 500 mm from the belt anchorage to be tested 

and is held or fixed at the rear not less than 300 mm from that anchorage. 

5.2.3. It is recommended that the structure should rest on supports arranged approximately in line with the axis of the wheels or, if  that is not possible, in line wi th the points of attachment of the suspension. 

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5.2.4. If a test method other than  that prescribed in items 5.2.1 to 5.2.3 of this Directive is used, evidence must be furnished that it is equivalent. 

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5.3.  General test specifications 

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5.3.1. All the belt anchorages of the same group of seats shall  be tested simultaneously. However, if there is a risk that non-symmetrical loading of the seats and/or anchorages may lead to failures, an additional test may be carried out with non-symmetrical loading. 

5.3.2. The tractive force shall be applied in a direction corresponding to the seating position at an