{"aspect_id":"AS41","aspect_name":"volumetric-mass-density","aspect_reference":null,"aspect_symbol":"\\rho","name":"volumetric-mass-density pound per cubic yard","scale_id":"SC1112","scale_name":null,"scale_symbol":null,"scale_type":"ratio","symbol":"\\rho lb.yd-3","unit_id":"UN1153","unit_name":"pound per cubic yard","unit_reference":null,"unit_symbol":"lb.yd-3"}