{
  "url": "https://openlegislation.uk/eu-directive-2014-68/annex-I/division-1/division-n6/division-2.2/division-2.2.4",
  "json_url": "https://openlegislation.uk/eu-directive-2014-68/annex-I/division-1/division-n6/division-2.2/division-2.2.4.json",
  "legislation": "eudr/2014/68",
  "legislation_title": "Directive 2014/68/EU of the European Parliament and of the Council of 15 May 2014 on the harmonisation of the laws of the Member States relating to the making available on the market of pressure equipment (recast) (Text with EEA relevance)",
  "legislation_url": "https://openlegislation.uk/eu-directive-2014-68",
  "path": "annex/I/division/1/division/n6/division/2.2/division/2.2.4",
  "kind": "division",
  "number": "2.2.4",
  "heading": "Experimental design method",
  "text": "The design of the equipment may be validated, in all or in part, by an appropriate test programme carried out on a sample representative of the equipment or the category of equipment.\nThe test programme shall be clearly defined prior to testing and accepted by the notified body responsible for the design conformity assessment module, where it exists.\nThis programme shall define test conditions and criteria for acceptance or refusal. The actual values of the essential dimensions and characteristics of the materials which constitute the equipment tested shall be measured before the test.\nWhere appropriate, during tests, it shall be possible to observe the critical zones of the pressure equipment with adequate instrumentation capable of registering strains and stresses with sufficient precision.\nThe test programme shall include:\n(a) A pressure strength test, the purpose of which is to check that, at a pressure with a defined safety margin in relation to the maximum allowable pressure, the equipment does not exhibit significant leaks or deformation exceeding a determined threshold.\nThe test pressure shall be determined on the basis of the differences between the values of the geometrical and material characteristics measures under test conditions and the values used for design purposes; it shall take into account the differences between the test and design temperatures;\n(b) where the risk of creep or fatigue exists, appropriate tests determined on the basis of the service conditions laid down for the equipment, for instance hold time at specified temperatures, number of cycles at specified stress-levels;\n(c) where necessary, additional tests concerning other factors referred to in point 2.2.1 such as corrosion, external damage.",
  "extent": "E+W+S+N.I.",
  "status": null,
  "version": "current",
  "annotations": [],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/eudr/2014/68/annex/I/division/1/division/n6/division/2.2/division/2.2.4",
    "retrieved_at": "2026-11-01T15:21:42.605150+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."
}