{
  "code": "13.030.20",
  "fieldcode": "13",
  "description": "Liquid wastes. Sludge",
  "groupcode": "030",
  "subgroupcode": "20",
  "@context": "https://isoics.org/ics/ns/subgroup.jsonld",
  "descriptionFull": "Environment. Health protection. Safety. Wastes. Liquid wastes. Sludge.",
  "notes": [
    {
      "text": "Sewage water, see {ics-code}",
      "ics-code": "13.060.30"
    }
  ]
}