At the completion of the test , the component shall not leak more than 15 cm3/hour when submitted to a gas pressure equal to the maximum working pressure at ambient temperature and at the maximum operating temperature as indicated in Annex 5O . 7.4.2.2.2 . At the completion of the test , the PRD ( pressure triggered ) burst pressure shall be 34 MPa +- 10 per cent at ambient temperature and at the maximum operating temperature as indicated in Annex 5O . Annex 4B