{"aspect_id":"AS18","aspect_name":"amount-of-heat","aspect_reference":null,"aspect_symbol":null,"name":"amount-of-heat British thermal unit (thermochemical)","scale_id":"SC932","scale_name":null,"scale_symbol":null,"scale_type":"ratio","symbol":"None Btu_{th}","unit_id":"UN973","unit_name":"British thermal unit (thermochemical)","unit_reference":null,"unit_symbol":"Btu_{th}"}