International Standardisation Organization (ISO)
ISO has the broadest scope. It covers technologies, materials, test methods and processes for all industry-sectors (with the exception of electrotechnology and telecommunications) along with horizontal standards, such as management systems standards or standards addressing societal issues (e.g. health and safety or social responsibility).
International Electrotechnical Commission (IEC)
IEC covers the electrotechnology sector
International Telecommunication Union (ITU)
ITU covers the telecommunications sector
International standards organization whose membership is open to the relevant national body from every country.
These organizations ensure a double level of consensus:
- Amongst stakeholders
- Across countries
ISO and IEC are private, non governmental organizations
ITU is an intergovernmental organization (a special UN agency)