International Organization for Standardization (ISO)
The International Organization for Standardization (ISO) is a non-governmental organization that forms a bridge between the public and private sectors. ISO is a large developer and publisher of international standards. All branches other than electrical engineering standards are within the scope of ISO. The site provides "standards" which are documents that provide requirements, specifications, guidelines, and characteristics that may be used to ensure that materials, products, processes, and services are fit for their purpose. These standards may be purchased from the ISO store for varying fees.