Document ID: chunk:federal_register_of_legislation:F2007C00514:front:0:p21
Version: federal_register_of_legislation:F2007C00514
Segment Type: other
Provision Reference: 
Character Range: 58471–61426

(which is deemed to be equivalent to the volume of a pipe 2.5 m long with an internal diameter of 13 mm and under a pressure of 6.5 bar) must be connected to the 'Coupling Head' of the 'Supply Line 35/...'.
8.18.                                Service Brake Compatibility Test
8.18.1.                          Vehicles equipped to tow a trailer which uses air at positive pressure must be laden to the Group 'Axle Load' limits as specified in Table 2 or the manufacturers 'GVM' whichever is the lesser, and braked to a stop from initial speed of 60 km/h. For the first test a 'Control Signal' of 0.2 'E' (130 kPa) measured at the 'Coupling Head' must be used. Subsequent tests must be conducted increasing the 'Control Signal' in increments of not greater than 0.2 'E' (130 kPa) until an 'Established Retardation Co-efficient' of not less than 0.45 is reached.
8.18.2.                          For the purposes of clause 5.1.10.2, where the vehicle has a 'Rated Towing Capacity' of more than 4.5 tonnes and the 'Manufacturer' elects not to provide certification which provides for the operation of trailer brakes using air at a positive pressure, the response of the 'Service Brake System' must be characterised as follows. The vehicle must be laden to the 'Group Axle Load' limits as specified in Table 2 or the manufacturers 'GVM' whichever is the lesser, and a series of tests conducted braking the vehicle to a stop from initial speed of 60 km/h.  The output energy level of the 'Service Brake System' 'Control' and the 'ERC' achieved must be recorded for each test.  For the first test an 'ERC' in the range 0.05 to 0.1 must be achieved.  Subsequent tests must be conducted increasing the 'ERC' in not less than 5 evenly spaced steps until an 'ERC' of not less than 0.45 is reached.
8.18.3.                          The 'Service Brake System' 'ERC' must be determined according to the following as required:

              where:
              V is the initial speed in km/h
              S is the 'Stopping Distance' in metres
              T is the 'Stopping Time' in seconds
              TR  is the response time measured from the time the 'Control' leaves the 'Initial Brake Control Location' until the energy level at the least favoured actuator reaches 65% of 'Average Operating Pressure' and is measured in a separate test in accordance with clause 8.17.2 to 8.17.5.
9.                                          ALTERNATIVE STANDARDS
9.1.                                    Subject to the following clauses, the technical requirements of ECE R 13/01 to 13/06 "Braking" are deemed to be equivalent to the technical requirements of this rule.
9.2.                                    The requirements of clauses 5.1.5, 5.1.7, 5.1.8, 5.1.9, 5.3.5, 5.3.6, 5.5.9, 5.5.10, 5.7, 8.17 and 8.18 must be met.
9.3.                                    In the case of forward-control passenger vehicles (MB) and off-road passenger vehicles (MC), ECE vehicle