Pitch-impregnated refractory product

{
  "id": "MLC-T-ENV-021089",
  "term": "Pitch-impregnated refractory product",
  "field": "Environment",
  "term_source": "Pitch-Impregnated Refractory Product",
  "definition": "Refractory shape that has been fired in a kiln, then impregnated with heated coal tar or petroleum pitch under pressure. After impregnation, pitch-impregnated refractory shapes may undergo the coking process in a coking oven. The total carbon content of a pitch-impregnated refractory product is less than 50 percent.",
  "subject": "Chemical substances",
  "references": [
    "40 CFR 63.9824 (CFR 2013)"
  ],
  "url": "https://mlchart.com/terminology/environment/pitch-impregnated-refractory-product/"
}