{"aspect_id":"AS41","aspect_name":"volumetric-mass-density","aspect_reference":null,"aspect_symbol":"\\rho","name":"volumetric-mass-density grain per gallon (U.S.)","scale_id":"SC1036","scale_name":null,"scale_symbol":null,"scale_type":"ratio","symbol":"\\rho gr.gal-1","unit_id":"UN1077","unit_name":"grain per gallon (U.S.)","unit_reference":null,"unit_symbol":"gr.gal-1"}