Standards

To be as open as possible Tango.info follows international standards:

• ISO 639-3 - language codes
• ISO 3166-1 - country codes
• UN/LOCODE - UN location codes
• ISO 8601 - date and time representation
• GTIN-14 - trade item numbers (barcodes)
• XHTML 1.1 - html standard
• ISO/IEC 10646 / utf-8 - character encoding
• ISO/IEC 15948 - PNG image standard
• ISO/IEC 26300 ODF OpenDocument Format