{
  "url": "https://openlegislation.uk/eu-regulation-2010-406/annex-IV/part-2/division-4/division-4.2/division-4.2.6/division-4.2.6.2",
  "json_url": "https://openlegislation.uk/eu-regulation-2010-406/annex-IV/part-2/division-4/division-4.2/division-4.2.6/division-4.2.6.2.json",
  "legislation": "eur/2010/406",
  "legislation_title": "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)",
  "legislation_url": "https://openlegislation.uk/eu-regulation-2010-406",
  "path": "annex/IV/part/2/division/4/division/4.2/division/4.2.6/division/4.2.6.2",
  "kind": "division",
  "number": "4.2.6.2",
  "heading": "Procedure",
  "text": "The container, including coating if applicable, shall be tested in the following sequence:\n(a)The upper section of the container shall be divided into five distinct areas and marked for pendulum impact preconditioning and fluid exposure. The five areas shall each be nominally 100 mm in diameter. The five areas do not need to be oriented along a single line, but shall not overlap;\n(b)The approximate centre of each of the five areas shall be preconditioned by the impact of a pendulum body. The steel impact body of the pendulum shall have the shape of a pyramid with equilateral triangle faces and a square base, the summit and the edges being rounded to a radius of 3 mm. The centre of percussion of the pendulum shall coincide with the centre of gravity of the pyramid; its distance from the axis of rotation of the pendulum shall be 1 m and the total mass of the pendulum referred to its centre of percussion shall be 15 kg. The energy of the pendulum at the moment of impact shall not be less than 30 J, and as close to that value as possible. During pendulum impact, the container shall be held in position by the end bosses or by the intended mounting brackets. The container shall be unpressurised during preconditioning;\n(c)Each of the 5 preconditioned areas shall be exposed to one of five solutions. The five solutions are:\n(i)Sulphuric acid — 19 per cent solution by volume in water;\n(ii)Sodium hydroxide — 25 per cent solution by weight in water;\n(iii)Methanol/gasoline — 5/95 per cent concentration;\n(iv)Ammonium nitrate — 28 per cent solution by weight in water;\n(v)Windshield washer fluid (50 per cent by volume solution of methyl alcohol and water).\n(d)During the exposure, orientate the container with the fluid exposure areas uppermost. Place a pad of glass wool approximately 0,5 mm thick and 100 mm in diameter on each of the five preconditioned exposure areas. Apply an amount of the test fluid to the glass wool sufficient to ensure that the pad is wetted evenly across its surface and through its thickness for the duration of the test;\n(e)Pressure cycle between ≤ 2 MPa and ≥ 1,25 times nominal working pressure for the number of filling cycles calculated in accordance with section 2.7.6., at a maximum pressurisation rate of 2,75 MPa/s;\n(f)Pressurise to 1,25 times nominal working pressure and hold at that pressure for a minimum of 24 hours until the elapsed exposure time (pressure cycling and pressure hold) to the environmental fluids equals at least 48 hours;\n(g)Burst test in accordance with section 4.2.1.2.",
  "extent": null,
  "status": null,
  "version": "current",
  "annotations": [],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/eur/2010/406/annex/IV/part/2/division/4/division/4.2/division/4.2.6/division/4.2.6.2",
    "retrieved_at": "2026-11-01T14:50:48.674921+00:00"
  },
  "licence": "Open Government Licence v3.0",
  "licence_url": "https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/",
  "attribution": "Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives."
}