{
  "alternatives": [
    {
      "hardware": "removed/turned spool",
      "state": "connector out of joining position; process-side blind flange installed",
      "separation": "actual gap and closure must be verified"
    },
    {
      "hardware": "spectacle blank",
      "state": "solid plate occupies selected flange joint",
      "service_eligibility": "included in separate LPG basis; excluded in anhydrous ammonia basis"
    }
  ],
  "service_rules": {
    "ammonia": "spectacle excluded; removed/turned connector with blind retained",
    "LPG": "turn-spool and spectacle alternatives retained under actual service basis"
  },
  "source_number_conflict": "H2S body5=spool/6=spectacle versus graphic5=spectacle/6=spool; identify physical hardware, no numbering correction",
  "excluded": [
    "injection circuit",
    "pressure/control/backflow sequence",
    "isolation performance certification"
  ]
}