{"aspect_id":"AS94","aspect_name":"emissivity","aspect_reference":null,"aspect_symbol":"\\epsilon","name":"emissivity parts per million","scale_id":"SC1358","scale_name":null,"scale_symbol":null,"scale_type":"ratio","symbol":"\\epsilon ppm","unit_id":"UN1270","unit_name":"parts per million","unit_reference":null,"unit_symbol":"ppm"}