siemens

{
  "id": "NISTu19",
  "unitsml_id": "u:siemens",
  "name": "siemens",
  "names": [
    {
      "value": "siemens",
      "lang": "en"
    },
    {
      "value": "siemens",
      "lang": "fr"
    }
  ],
  "symbols": {
    "unicode": "S",
    "ascii": "S",
    "html": "S",
    "latex": "\\ensuremath{\\mathrm{S}}",
    "id": "S",
    "mathml": "<mi mathvariant='normal'>S</mi>"
  },
  "identifiers": [
    {
      "type": "nist",
      "id": "NISTu19"
    },
    {
      "type": "unitsml",
      "id": "u:siemens"
    }
  ],
  "references": [
    {
      "type": "normative",
      "authority": "si-digital-framework",
      "uri": "http://si-digital-framework.org/SI/units/siemens"
    },
    {
      "type": "informative",
      "authority": "ucum",
      "uri": "ucum:unit:si:code:S"
    },
    {
      "type": "informative",
      "authority": "qudt",
      "uri": "http://qudt.org/vocab/unit/S"
    }
  ],
  "short": "siemens",
  "root": true,
  "composite": true,
  "quantities": [
    {
      "id": "NISTq29",
      "name": "electric conductance",
      "type": "derived"
    }
  ],
  "dimension": {
    "id": "NISTd21",
    "name": "electric conductance",
    "expression": "L-2·M-1·T3·I2",
    "components": [
      {
        "key": "length",
        "symbol": "L",
        "power": -2
      },
      {
        "key": "mass",
        "symbol": "M",
        "power": -1
      },
      {
        "key": "time",
        "symbol": "T",
        "power": 3
      },
      {
        "key": "electric_current",
        "symbol": "I",
        "power": 2
      }
    ],
    "dimensionless": false
  },
  "scale": {
    "id": "continuous_ratio",
    "name": "continuous ratio scale"
  },
  "systems": [
    {
      "id": "SI_derived_special",
      "name": "SI-derived units special",
      "short": "si-derived-special",
      "acceptable": true
    },
    {
      "id": "SI_compatible",
      "name": "Units compatible with SI",
      "short": "si-compatible",
      "acceptable": true
    }
  ],
  "root_units": [
    {
      "power": -2,
      "unit": {
        "id": "NISTu1",
        "name": "metre",
        "symbol": "m"
      },
      "prefix": null
    },
    {
      "power": -1,
      "unit": {
        "id": "NISTu27",
        "name": "gram",
        "symbol": "g"
      },
      "prefix": {
        "id": "NISTp10_3",
        "name": "kilo",
        "symbol": "k"
      }
    },
    {
      "power": 3,
      "unit": {
        "id": "NISTu3",
        "name": "second",
        "symbol": "″"
      },
      "prefix": null
    },
    {
      "power": 2,
      "unit": {
        "id": "NISTu4",
        "name": "ampere",
        "symbol": "A"
      },
      "prefix": null
    }
  ]
}