ISO develops the
ISO Standards, ISO/PAS Publicly Available Specifications, ISO/TS Technical Specifications, ISO/TR Technical Reports, IWA International Workshop Agreements and ISO Guides
ISO/TR Technical Report
An informative document containing information of a different kind from that normally published in a normative document.
When a committee has collected information in support of an approved work item or work items, it may decide, by simple majority vote of the P-members, to request that the information be published in the form of a technical report. The ISO Secretary-General, if necessary in consultation with the Technical Management Board, shall decide whether to publish the document as a technical report.
An IWA is an ISO document produced through workshop meeting(s) and not through the technical committee process.