Document ID: chunk:federal_register_of_legislation:F2006L01788:front:0:p4
Version: federal_register_of_legislation:F2006L01788
Segment Type: other
Provision Reference: 
Character Range: 11335–14546

the case of 'Asymmetrical Tyres' with each of the following permanently moulded in letters and figures at least 3.8 mm high and depth at least 0.25 mm if below the background surface or 0.4 mm if above the background surface:
23.2.3.1.                    tyre size designation, which includes the 'Speed Category' symbol as determined from Table 4 either within the size designation or adjacent to the size designation as part of the 'Service Description', and 'Tyre Carcass Construction Symbol' for 'Radial Ply Tyres' or 'Bias-belted Tyres' and optionally, in the case of 'Diagonal Ply Tyres';
23.2.3.2.                    the 'Maximum Load Rating'  for the tyre expressed in kilograms followed by the word "kilograms" (or "KILOGRAMS") or the abbreviation "kg" (or "KG") or the 'Maximum Load Rating' for the tyre expressed in pounds followed by the word "pounds" (or "POUNDS") or the abbreviation "lbs" (or "LBS") or the 'Load Index' symbol (from Table 2) adjacent to the size designation as part of the 'Service Description'.  Tyres must be labelled unambiguously in respect to 'Maximum Load Rating' or 'Load Index';

23.2.3.2.1.              For tyres with a 'Speed Category' "V", "W", "Y" or "Z", the 'Maximum Load Rating' labelled on the tyre 'Sidewall(s)' must be the maximum load which applies at speeds up to the following:
         Speed Category "V" - 210 km/h
         Speed Category "W" and "Z"  - 240 km/h
         Speed Category "Y"  - 270 km/h
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 digits, 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 tyres 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