{"aspect_id":"AS14","aspect_name":"pressure","aspect_reference":null,"aspect_symbol":null,"name":"pressure foot of mercury, conventional","scale_id":"SC1020","scale_name":null,"scale_symbol":null,"scale_type":"ratio","symbol":"None ftHg","unit_id":"UN1061","unit_name":"foot of mercury, conventional","unit_reference":null,"unit_symbol":"ftHg"}