{"aspect_id":"AS229","aspect_name":"radiant-flux-density-per-unit-frequency","aspect_reference":null,"aspect_symbol":null,"name":"radiant-flux-density-per-unit-frequency watt per metre squared (per hertz)","scale_id":"SC1551","scale_name":null,"scale_symbol":null,"scale_type":"ratio","symbol":"None W.m-2.(Hz-1)","unit_id":"UN1464","unit_name":"watt per metre squared (per hertz)","unit_reference":null,"unit_symbol":"W.m-2.(Hz-1)"}