{"aspect_id":"AS99","aspect_name":"reflectance","aspect_reference":null,"aspect_symbol":"\\rho","name":"reflectance parts per trillion","scale_id":"SC1594","scale_name":null,"scale_symbol":null,"scale_type":"ratio","symbol":"\\rho ppt","unit_id":"UN1510","unit_name":"parts per trillion","unit_reference":null,"unit_symbol":"ppt"}