{
  "id": "UN133",
  "name": "mil (0.001 in)",
  "ml_name": "ip_mil",
  "symbol": "mil",
  "reference": "https://www.nist.gov/pml/special-publication-811/nist-guide-si-appendix-b-conversion-factors/nist-guide-si-appendix-b8#M"
}