{
  "url": "https://openlegislation.uk/iran-sanctions-nuclear-eu-exit-regulations-2019/schedule-1a/paragraph-37",
  "json_url": "https://openlegislation.uk/iran-sanctions-nuclear-eu-exit-regulations-2019/schedule-1a/paragraph-37.json",
  "legislation": "uksi/2019/461",
  "legislation_title": "The Iran (Sanctions) (Nuclear) (EU Exit) Regulations 2019",
  "legislation_url": "https://openlegislation.uk/iran-sanctions-nuclear-eu-exit-regulations-2019",
  "path": "schedule/1a/paragraph/37",
  "kind": "paragraph",
  "number": "37",
  "heading": "Section 2A: Equipment",
  "text": "(1) Tubes with an outer diameter of 0.2 m or more and made from any of the following materials—\n(a) stainless steels with 23% chromium or more by weight;\n(b) stainless steels and nickel bases alloys with a pitting resistance equivalent number higher than 33.\n(2) In sub-paragraph (1)—\n(a) the “pitting resistance equivalent” (“PRE”) number characterises the corrosion resistance of stainless steels and nickel alloys to pitting or crevice corrosion;\n(b) the pitting resistance of stainless steels and nickel alloys is primarily determined by their compositions, primarily: chromium, molybdenum, and nitrogen;\n(3) The formula to calculate the PRE number is—\nPRE =% Cr + 3.3*% Mo + 30*% N",
  "extent": null,
  "status": null,
  "version": "current",
  "annotations": [
    {
      "type": "F",
      "label": "F1",
      "text": "Schs. 1A-1I inserted (29.9.2026) by The Iran (Sanctions) (Amendment) Regulations 2026 (S.I. 2026/983), regs. 1(2), 13"
    }
  ],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/uksi/2019/461/schedule/1a/paragraph/37",
    "retrieved_at": "2026-10-28T22:45:44.769063+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."
}