{"aspect_id":"AS42","aspect_name":"surface-mass-density","aspect_reference":"https://si-digital-framework.org/quantities/SUDE","aspect_symbol":null,"name":"surface-mass-density ounce (avoirdupois) per square foot","scale_id":"SC1086","scale_name":null,"scale_symbol":null,"scale_type":"ratio","symbol":null,"unit_id":"UN1127","unit_name":"ounce (avoirdupois) per square foot","unit_reference":"https://www.nist.gov/pml/special-publication-811/nist-guide-si-appendix-b-conversion-factors/nist-guide-si-appendix-b8#O","unit_symbol":"oz.ft-2"}