{"aspect_id":"AS135","aspect_name":"mass-ratio","aspect_reference":null,"aspect_symbol":null,"name":"mass-ratio kilogram per kilogram","scale_id":"SC1739","scale_name":null,"scale_symbol":null,"scale_type":"ratio","symbol":"None kg.kg-1","unit_id":"UN1652","unit_name":"kilogram per kilogram","unit_reference":null,"unit_symbol":"kg.kg-1"}