The most of the ISO standards are copyrighted and ISO charges for the most copies. It is possible to purchase it direclty by ISO or even the related national standardization body, like DIN (German Standardization Institute). The charge depends mostly on the pages or even size of the standard. It is approx. 100 Swiss Francs per copy. Anyway, in accordance with ISO/IEC JTC 1 and the ISO and IEC Councils are a number of standards freely available, which can be used for standardization purposes. You'll find these freely available standards either at
The Business Process Expert (BPX) has the opportunity to get freely available ISO standards, in where some of the playing a key part in reference models and open distributed processing. Some of these ISO standards are:
ISO/IEC 7498 - Open Systems Interconnection -- Basic Reference Model
ISO/IEC 8613 - Open Document Architecture (ODA) and Interchange Format