Proposal clarifies the test procedure of endurance test for pressure regulators.

Proposal clarifies the test procedure of endurance test for pressure regulators.

Proposal to amend Annex 16, para. 9.6. to clarify the endurance test procedure for pressure regulators and vaporizers by specifying that the outlet of the regulator shall be plugged during cycling of the inlet pressure from 100 per cent to 50 per cent of classification pressure at room temperature and at high and low temperatures. The regulator shall withstand 50,000 cycles without failure and remain leak proof after testing at temperatures of −20 °C, room temperature, and +120 °C.

Proposal to amend Annex 4D, para. 2.4., to clarify the endurance test procedure for CNG pressure regulators by specifying that the outlet of the regulator shall be plugged during the cycling of inlet pressure from 100 per cent to 50 per cent of service pressure at room temperature. The regulator shall withstand 50,000 cycles without failure and be leak proof at specified temperatures upon test completion.

Italy opposes GRSP-79-05 proposal to delete paragraphs 15.1.2 and 15.1.3 of transitional provisions, which would permit production and marketing of helmets to the earlier 05 series of amendments to UN R22. Italy argues restoring approval for UN R22.05 helmets would set technical requirements back 26 years, disrupt markets with obsolete products, penalize companies investing in UN R22.06 adaptation, and frustrate safety improvements. No appreciable price difference exists between UN R22.05 and UN R22.06 helmets, negating cost justification.