The International Organization for Standardization (ISO) is a worldwide federation of national standards bodies from more than 145 countries, one from each country. ISO is a non-governmental organization established in 1947 and based in Geneva, Switzerland. Its mission is to promote the development of standardization and related activities in the world with a view to facilitating the international exchange of goods and services, and to developing cooperation in the spheres of intellectual, scientific, technological and economic activity. ISO's work results in international agreements which are published as International Standards and other types of ISO documents. The American National Standards Institute (ANSI) is a member of the worldwide federation of National Standards Bodies. ANSI is the sole member for the USA.
ISO standards are developed through technical committees comprising of experts from the industrial, technical and business sectors. These experts may be joined by others with relevant knowledge, such as representatives of government agencies, testing laboratories, consumer associations, environmentalists, academic circles and so on. The experts participate as national delegations, chosen by the ISO national member institute for the country concerned. These delegations are required to represent not just the views of the organizations in which their participating experts work, but of other stakeholders too. For NDT ISO standards, the technical committee responsible is the ISO TC135 group.
Each country will provide representation for the TC135 Group. For the US, ASNT under the authority of ANSI represents the US voice as it relates to the ISO NDT Standards and ISO TC135. Within the US, we are known as the ANSI/ISO TC135 TAG (Technical Advisory Group). The key functions and responsibilities for any TAG is as follows:
Further information may be found on https://www.ansi.org/standards_activities/iso_programs/tag_iso
Contact with questions: