{"aspect_id":"AS12","aspect_name":"frequency","aspect_reference":"https://si-digital-framework.org/quantities/FREQ","aspect_symbol":null,"name":"frequency hertz","scale_id":"SC11","scale_name":null,"scale_symbol":null,"scale_type":"ratio","symbol":null,"unit_id":"UN11","unit_name":"hertz","unit_reference":"https://si-digital-framework.org/SI/units/hertz","unit_symbol":"Hz"}