Document ID: chunk:federal_register_of_legislation:F2021C00470:body:0:p5
Version: federal_register_of_legislation:F2021C00470
Segment Type: other
Provision Reference: 
Character Range: 14063–17330

in kilograms followed by the word "kilograms" or the abbreviation 'kg' or the 'Maximum Load Rating' for the tyre expressed in pounds followed by the word "pounds" or the abbreviation "lbs" or the 'Load Index' symbol (from Table 2) adjacent to the size designation as part of the 'Service Description'. Tyres shall be labelled unambiguously in respect to 'Maximum Load Rating' or 'Load Index';
23.2.3.3.                    identification of manufacturer by:
23.2.3.3.1.              Name; or
23.2.3.3.2.              Brand Name and an 'Approved' code mark;
23.2.3.4.                    the word "TUBELESS" if applicable;
23.2.3.5.                    the word "RADIAL" if applicable;
23.2.3.6.                    the words 'BIAS-BELTED' if applicable;
23.2.3.7.                    a date code consisting of 3 digit, the first 2 nominating the week of the year and the third digit the year of manufacture on at least one 'Sidewall' of the tyre; and
23.2.3.8.                    in the case of 'Asymmetrical Tyres', a clear indication which side of the tyre is to face outwards when fitted to the vehicle.
23.3.                                TEST PROCEDURES
23.3.1.                          Physical Dimensions Test
23.3.1.1.                    Determine tyre's physical dimensions under uniform ambient conditions as follows.
23.3.1.1.1.              Mount the tyre on a 'Test Rim' and inflate it to the pressure specified for measurement in the 'Nominated Standard'.
23.3.1.1.2.              If no pressure is specified for measurement, mount the tyre on a 'Test Rim' and inflate it to the pressure designated for its 'Maximum Load Rating' in the 'Nominated Standard' reduced by 60 kPa (or 8 psi as appropriate).
23.3.1.2.                    Condition it at ambient room temperature for at least 24 hours.
23.3.1.3.                    Readjust pressure to that specified in Clauses 23.3.1.1.1 or 23.3.1.1.2 as appropriate.
23.3.1.4.                    Caliper the 'Section Width' and 'Overall Tyre Width' at 6 points approximately equally spaced around the tyre circumference.
23.3.1.5.                    Record the average of these measurements as the 'Section Width' and 'Overall Tyre Width', respectively.
23.3.1.6.                    Determine tyre outer diameter by measuring the maximum circumference of the tyre and dividing this dimension by Pi.
23.3.2.                          Resistance to `Bead' Unseating Test (for tubeless tyres only)
23.3.2.1.                    Preparation of tyre 'Test Rim' assembly
23.3.2.1.1.1.       Wash the tyre, dry it at the 'Beads', and mount it without lubrication or adhesive on a clean painted test 'Rim'.
23.3.2.1.1.2.       Adjust the pressure to the applicable pressure specified in Clause 23.3.1.1.2 at ambient room temperature.
23.3.2.1.1.3.       Mount the tyre and 'Test Rim' in the fixture shown in Figure 1, and force: ether of the standard blocks shown in Figure 2 against the tyre 'Sidewalls' as required by the geometry of the fixture, or by any other 'Approved' test procedure.
23.3.2.2.                    Test procedure
23.3.2.2.1.              Apply a load through the block to the tyre's outer 'Sidewall' at a distance no less than that specified in Figure 1 for the applicable 'Rim' at a rate of 50  10