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UN R129: Proposal for Supplement 1 to the 03 series of amendments
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Reference Number: GRSP/2018/22
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Proposal from Spain on behalf of the Technical Services Group (TSG) on UN R129 to allow the head of the dummy to pass the DE plane provided there is a structure (e.g., head pad or backrest) that provides adequate protection for the head. Under UN R129, the combination of a stiffer test bench foam and the design of the test dummy can mean that when testing forward-facing child restraints (including boosters), the dummy’s head often passes the DE plane. The Q-series dummies are not proven to be biofidelic during the rebound phase of the impact test. In such cases, the head pad or backrest provides protection to the child’s head and the energy-absorption properties of this structure will have been tested using the test method described in UN Regulation No. 129.
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Submitted by:
Spain
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Meeting Sessions: 63rd GRSP session (14-18
May 2018)
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Document date: 02 Mar 18
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Document status: Superseded
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Relevant to: UN Regulation No. 129 | Enhanced Child Restraint Systems
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