mass

{
  "id": "NISTq2",
  "unitsml_id": "q:mass",
  "name": "mass",
  "names": [
    {
      "value": "mass",
      "lang": "en"
    },
    {
      "value": "masse",
      "lang": "fr"
    }
  ],
  "short": "mass",
  "type": "base",
  "dimension": {
    "id": "NISTd2",
    "name": "mass",
    "expression": "M",
    "components": [
      {
        "key": "mass",
        "symbol": "M",
        "power": 1
      }
    ],
    "dimensionless": false
  },
  "units": [
    {
      "id": "NISTu125",
      "name": "kilogram-force second squared per meter",
      "symbol": "kgf·s²m⁻¹"
    },
    {
      "id": "NISTu2",
      "name": "kilogram",
      "symbol": "kg"
    },
    {
      "id": "NISTu201",
      "name": "pound (avoirdupois)",
      "symbol": "lb"
    },
    {
      "id": "NISTu202",
      "name": "ounce (avoirdupois)",
      "symbol": "oz"
    },
    {
      "id": "NISTu203",
      "name": "hundredweight (long, 112 lb)",
      "symbol": "cwt (UK)"
    },
    {
      "id": "NISTu212",
      "name": "carat",
      "symbol": "ct"
    },
    {
      "id": "NISTu226",
      "name": "slug",
      "symbol": "slug"
    },
    {
      "id": "NISTu228",
      "name": "short ton",
      "symbol": "t"
    },
    {
      "id": "NISTu229",
      "name": "long ton",
      "symbol": "t"
    },
    {
      "id": "NISTu230",
      "name": "hundredweight (short, 100 lb)",
      "symbol": "cwt (US)"
    },
    {
      "id": "NISTu231",
      "name": "ounce (troy or apothecary)",
      "symbol": "oz"
    },
    {
      "id": "NISTu232",
      "name": "pound (troy or apothecary)",
      "symbol": "lb"
    },
    {
      "id": "NISTu233",
      "name": "pennyweight",
      "symbol": "dwt (troy)"
    },
    {
      "id": "NISTu234",
      "name": "dram (apothecary)",
      "symbol": "dr"
    },
    {
      "id": "NISTu235",
      "name": "scruple",
      "symbol": "scr (ap.)"
    },
    {
      "id": "NISTu237",
      "name": "kip",
      "symbol": "kip"
    },
    {
      "id": "NISTu241",
      "name": "unified atomic mass unit",
      "symbol": "u"
    },
    {
      "id": "NISTu244",
      "name": "natural unit of mass",
      "symbol": "𝑚ₑ"
    },
    {
      "id": "NISTu247",
      "name": "atomic unit of mass",
      "symbol": "𝑚ₑ"
    },
    {
      "id": "NISTu27",
      "name": "gram",
      "symbol": "g"
    },
    {
      "id": "NISTu275",
      "name": "dram (avoirdupois)",
      "symbol": "dr (avdp)"
    },
    {
      "id": "NISTu289",
      "name": "dalton",
      "symbol": "Da"
    },
    {
      "id": "NISTu309",
      "name": "ounce (FDA)",
      "symbol": "oz (US label)"
    },
    {
      "id": "NISTu86",
      "name": "grain (troy or apothecary)",
      "symbol": "gr"
    },
    {
      "id": "NISTu88",
      "name": "tonne",
      "symbol": "t"
    }
  ],
  "unit_count": 25,
  "identifiers": [
    {
      "type": "nist",
      "id": "NISTq2"
    },
    {
      "type": "unitsml",
      "id": "q:mass"
    }
  ],
  "references": [
    {
      "type": "normative",
      "authority": "si-digital-framework",
      "uri": "http://si-digital-framework.org/quantities/MASS"
    },
    {
      "type": "informative",
      "authority": "qudt",
      "uri": "http://qudt.org/vocab/quantitykind/Mass"
    }
  ]
}