{"aspect_id":"AS41","aspect_name":"volumetric-mass-density","aspect_reference":"https://si-digital-framework.org/quantities/DENS","aspect_symbol":null,"name":"volumetric-mass-density slug per cubic foot","scale_id":"SC1134","scale_name":null,"scale_symbol":null,"scale_type":"ratio","symbol":null,"unit_id":"UN1175","unit_name":"slug per cubic foot","unit_reference":"https://www.nist.gov/pml/special-publication-811/nist-guide-si-appendix-b-conversion-factors/nist-guide-si-appendix-b8#S","unit_symbol":"slug.ft-3"}