What is a standard?
A standard is a document that provides requirements, specifications, guidelines or characteristics that can be used consistently to ensure that materials, products, processes and services are fit for their purpose. We published over 19 500 International Standards that can be purchased from the ISO store or from our members.

What are the benefits of ISO International Standards?
ISO International Standards ensure that products and services are safe, reliable and of good quality. For business, they are strategic tools that reduce costs by minimizing waste and errors, and increasing productivity. They help companies to access new markets, level the playing field for developing countries and facilitate free and fair global trade.
Learn more about the benefits of ISO standards


Language codes - ISO 639
ISO 639 is the International Standard for language codes. The purpose of ISO 639 is to establish internationally recognised codes (either 2, 3, or 4 letters long) for the representation of languages or language families.
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ISO 3166 : Country Codes
The existence of various country codes developed by different organizations can be confusing if you exchange goods or information in our ever more integrated world. To make sure that communication works you need an accepted, up-to-date country code standard.
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What is ISO 4217?
ISO 4217 is the International Standard for currency codes. The purpose of ISO 4217:2008 is to establish internationally recognised codes for the representation of currencies. Currencies can be represented in the code in two ways: a three-letter alphabetic code and a three-digit numeric code.
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ISO 639
Language codes
ISO 3166
Country codes
ISO 4217
Currency codes
ISO 8124
ISO 8317
ISO 8601
Time and date format
ISO 9000
Quality management
ISO 9001
ISO 9809 - 7866
ISO 10012
ISO 10779
ISO 14000
Environment Management
ISO 14001
ISO 14064-14065
ISO 15270
ISO 15743
ISO 16104
ISO 16850
ISO 18192
ISO 21930
ISO 22000
ISO 22411
ISO 23600
ISO 26000
Social responsibility
ISO 27001
ISO 31000
Risk management
ISO 50001
ISO IEC 17025-2005
ISO others
ISO TS 16949

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