{
  "id": "UN1132",
  "name": "pennyweight",
  "ml_name": "ip_dwt",
  "symbol": "dwt",
  "reference": "https://www.nist.gov/pml/special-publication-811/nist-guide-si-appendix-b-conversion-factors/nist-guide-si-appendix-b8#D"
}