BS ISO/IEC 13249-3:2016:defines concepts specific to this part of ISO/IEC 13249,defines spatial user-defined types and their associated routines.Cross References:ISO/IEC 9075-1ISO/IEC 9075-2ISO/IEC 13249-1ISO 19107ISO 19111ISO 19136ISO 19136-2ISO 19148IEC 559:1989ISO IS 19109:2005All current amendments available at time of purchase are included with the purchase of this document.