# Commission Regulation (EU) No 406/2010 of 26 April 2010 implementing Regulation (EC) No 79/2009 of the European Parliament and of the Council on type-approval of hydrogen-powered motor vehicles (Text with EEA relevance), Division 4.2.12.2: Procedure


Special consideration shall be given to safety when conducting this test.
The container shall be tested in the following sequence:
(a)Pressurise with hydrogen gas to nominal working pressure;
(b)Place in an enclosed sealed chamber at 15 °C ± 2 °C and monitor for permeation for 500 hours or until steady state behaviour is kept for a period of at least 48 hours.

---
Source: https://www.legislation.gov.uk/eur/2010/406/annex/IV/part/2/division/4/division/4.2/division/4.2.12/division/4.2.12.2 (the official version)
Page: https://openlegislation.uk/eu-regulation-2010-406/annex-IV/part-2/division-4/division-4.2/division-4.2.12/division-4.2.12.2
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.