{"aspect_id":"AS3","aspect_name":"length","aspect_reference":"https://si-digital-framework.org/quantities/LENG","aspect_symbol":null,"name":"length femtometre","scale_id":"SC117","scale_name":null,"scale_symbol":null,"scale_type":"ratio","symbol":null,"unit_id":"UN287","unit_name":"femtometre","unit_reference":"https://si-digital-framework.org/SI/units/femtometre","unit_symbol":"fm"}