{"aspect_id":"AS38","aspect_name":"speed","aspect_reference":"https://si-digital-framework.org/quantities/VELO","aspect_symbol":null,"name":"speed kilometer per hour","scale_id":"SC1064","scale_name":null,"scale_symbol":null,"scale_type":"ratio","symbol":null,"unit_id":"UN1105","unit_name":"kilometer per hour","unit_reference":"https://www.nist.gov/pml/special-publication-811/nist-guide-si-appendix-b-conversion-factors/nist-guide-si-appendix-b8#K","unit_symbol":"km.h-1"}