A group of units that can be converted into each other.
~
Properties:
| defaultFlowProperty | Ref[FlowProperty] | Some LCA data formats do not have the concept of flow properties or quantities. This field provides a default link to a flow property for units that are contained in this group. |
| units | List[Unit] | The units of the unit group. |
~
Properties from CategorizedEntity:
| category | Ref[Category] | The category of the entity. |
| tags | List[string] | A list of optional tags. A tag is just a string which should not contain commas (and other special characters). |
| library | string | If this entity is part of a library, this field contains the identifier of that library. The identifier is typically just the combination of the library name and version. |
~
Properties from RootEntity:
| name | string | The name of the entity. |
| description | string | The description of the entity. |
| version | string | A version number in MAJOR.MINOR.PATCH format where the MINOR and PATCH fields are optional and the fields may have leading zeros (so 01.00.00 is the same as 1.0.0 or 1). |
| lastChange | dateTime | The timestamp when the entity was changed the last time. |
~
JSON-LD Example
{
"@context": "http://greendelta.github.io/olca-schema/context.jsonld",
"@type": "UnitGroup",
"@id": "93a60a57-a3c8-11da-a746-0800200c9a66",
"name": "Units of energy",
"category": {
"@type": "Category",
"@id": "e38f841d-bc83-49a3-ab86-2783de8cebfb",
"name": "Technical unit groups"
},
"defaultFlowProperty": {
"@type": "FlowProperty",
"@id": "f6811440-ee37-11de-8a39-0800200c9a66",
"name": "Energy"
},
"units": [
{
"@type": "Unit",
"@id": "010f811e-3cc2-4b14-a901-337da9b3e49c",
"name": "kcal",
"description": "Kilocalorie (International table)",
"conversionFactor": 0.0041867
},
{
"@type": "Unit",
"@id": "01e58eb9-0aba-4c76-ba0c-03f6f3be1353",
"name": "GJ",
"description": "Gigajoule",
"conversionFactor": 1000.0
},
{
"@type": "Unit",
"@id": "425aff51-b7e5-4561-aa5a-562ec103a79e",
"name": "TOE",
"description": "Ton oil equivalent",
"conversionFactor": 41868.0
},
{
"@type": "Unit",
"@id": "469d61f1-3bc4-4841-8adf-873825c1bc11",
"name": "J",
"description": "Joule",
"conversionFactor": 1.0E-6
},
{
"@type": "Unit",
"@id": "52765a6c-3896-43c2-b2f4-c679acf13efe",
"name": "MJ",
"description": "Megajoule",
"referenceUnit": true,
"conversionFactor": 1.0
},
{
"@type": "Unit",
"@id": "55244053-94ba-404e-9172-cb279d905e00",
"name": "btu",
"description": "British thermal unit (International table)",
"conversionFactor": 0.001055056
},
{
"@type": "Unit",
"@id": "57c492e7-d94b-4fcc-98df-cdc4163b754c",
"name": "TJ",
"description": "Terajoule",
"conversionFactor": 1000000.0
},
{
"@type": "Unit",
"@id": "787f2ac9-7bcd-4a91-9fab-55bfe414138f",
"name": "TCE",
"description": "Ton coal equivalent",
"conversionFactor": 29307.6
},
{
"@type": "Unit",
"@id": "86ad2244-1f0e-4912-af53-7865283103e4",
"name": "kWh",
"description": "Kilowatt times hour",
"conversionFactor": 3.6
},
{
"@type": "Unit",
"@id": "92e3bd49-8ed5-4885-9db6-fc88c7afcfcb",
"name": "MWh",
"description": "Megawatt times hour",
"conversionFactor": 3600.0
},
{
"@type": "Unit",
"@id": "f4119718-2d50-47fe-9154-cab6fd2d30eb",
"name": "kJ",
"description": "Kilojoule",
"conversionFactor": 0.001
},
{
"@type": "Unit",
"@id": "fc3604f7-aa93-4aa3-8ae9-8f822874da5f",
"name": "Wh",
"description": "Watt times hour",
"conversionFactor": 0.0036
}
]
}