An International Standard is the result of an agreement between the member bodies of ISO. It may be used as such, or may be implemented through incorporation in national standards of different countries.

International Standards are developed by ISO technical committees (TC) and subcommittees (SC) by a six-step process:

• Stage 1: Proposal stage
• Stage 2: Preparatory stage
• Stage 3: Committee stage
• Stage 4: Enquiry stage
• Stage 5: Approval stage
• Stage 6: Publication stage