GRBP/2024/16
UN R124: Proposal for a Supplement

Proposal to clarify the text:

  • Term “construction materials”
  • interpretation of paras. 2.2.4. and 2.2.8.
  • supplement technical description of the wheel with information describing production quality control
  • option for additional consumer-oriented marking
  • clarify Annex 4 and exclude aluminum-alloy and magnesium-alloy wheels under test (b)
  • clarify Annex 6 with regard to possible defects caused by the production process and not affecting the appearance of cracks during testing
  • recommend under Annex 6 to identify cracks occurred as a result of the test by using penetrating paints
  • clarify Annexes 7 and 8 with regard to air leakage.
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