However, the defining recommendation indicates a change to a system similar to ISO 8601 and astronomical year numbering is likely in the future.

* ISO 8601

* year and ordinal date within the year, e. g. the ISO 8601 ordinal date system

* ISO 8601

* 2003-11-09: the ISO 8601 international standard orders the components of a date like this, and additionally uses leading zeros, for example, 0813-03-01, to be easily read and sorted by computers.

It is also extended through the universal big-endian format clock time: 9 November 2003, 18h 14m 12s, or 2003 / 11 / 9 / 18: 14: 12 or ( ISO 8601 ) 2003-11-09T18: 14: 12.

The ISO 8601 date order with four-digit years: YYYY-MM-DD ( introduced in ISO 2014 ), is specifically chosen to be unambiguous.

The ISO 8601 standard also has the advantage of being language independent and is therefore useful when there may be no language context and a universal application is desired ( expiration dating on export products, for example ).

In addition, the ISO considers its ISO 8601 standard to make sense from a logical perspective.

Some U. S. government agencies now use ISO 8601 with 4-digit years.

One of the advantages of using the ISO 8601 standard date format is that the lexicographical order ( ASCIIbetical ) of the representations is equivalent to the chronological order of the dates.

ISO 8601 is used widely where concise, human readable yet easily computable and unambiguous dates are required, although many applications store dates internally as UNIX time and only convert to ISO 8601 for display.

See e. g. ISO 8601.

ISO 8601 Data elements and interchange formats – Information interchange – Representation of dates and times is an international standard covering the exchange of date and time-related data.

ISO 8601 includes a specification for a 52-week year.

The World Calendar, unlike some other proposals, is not compatible with the international standard ISO 8601, which is based upon, but differs from, the Gregorian calendar.

They differ regarding the first weekday of the week ( Sunday vs. Monday ) and ISO 8601 does not support intercalary dates ( e. g. in notation ).

See also Calendar date, ISO 8601 in Internet standards.

But according to international standard ISO 8601 it is the first day of the work week.

The international ISO 8601 standard places Monday as the first day of the week, and this is widely used on calendars in Europe and in international business.

ISO 13616-1: 2007 " specifies the elements of an international bank account number ( IBAN ) used to facilitate the processing of data internationally in data interchange, in financial environments as well as within and between other industries " but " does not specify internal procedures, file organization techniques, storage media, languages, etc.

ISO 3864 specifies international standards for safety symbols.

Part 7 ( ISO / IEC 13818-7 ) of the MPEG-2 standard specifies a rather different, non-backwards-compatible audio format ( also known as MPEG-2 NBC ).

International standard ISO 11146-1: 2005 specifies methods for measuring beam widths ( diameters ), divergence angles and beam propagation ratios of laser beams ( if the beam is stigmatic ) and for general astigmatic beams ISO 11146-2 is applicable.

For example, ANS X9. 52 specifies that for cipher block chaining, the initialization vector shall be different each time, whereas ISO / IEC 10116 does not.

ISO / IEC 7816-12: 2005 specifies:

* ISO 19011 which specifies one audit protocol for both 14000 and 9000 series standards together.

ISO 9283 specifies that accuracy and repeatability should be measured at maximum speed and at maximum payload.

Part 1 of the standard specifies that the card shall be compliant with ISO / IEC 7810 or ISO / IEC 15457-1, or " an object of any other dimension ".

ISO 7174 specifies stability of rocking and tilting chairs.

ISO 17025 is an international standard that specifies the general requirements for the competence to carry out tests and or calibrations.

ISO / IEC TR 18037 specifies fixed-point data types for the C programming language ; vendors are expected to implement the language extensions for fixed point arithmetic in coming years.

ISO / IEC 2022 coding specifies a two-layer mapping between character codes and displayed characters.

ISO 10126 ( withdrawn, 2007 ) specifies that the padding should be done at the end of that last block with random bytes, and the padding boundary should be specified by the last byte.

Tea tree oil is defined by international standard ISO 4730 ( 2004 ) (" Oil of Melaleuca, Terpinen-4-ol type "), which specifies levels of 15 components which are needed to define the oil as " tea tree oil.

In addition, the way that the ISO 9806 standard specifies the way in which the efficiency of solar thermal collectors should be measured is ambiguous, since these could be measured either in terms of gross area or in terms of absorber area.

ISO 8859-1 specifies that it is always visible.

ISO / IEC 2022 standard specifies their generalized usage.

ISO 10383 is an ISO standard which " specifies a universal method of identifying exchanges, trading platforms and regulated or non-regulated markets as sources of prices and related information in order to facilitate automated processing.

ISO / IEC 6523 Information technology – Structure for the identification of organizations and organization parts is an international standard that defines a structure for uniquely identifying organizations and parts thereof in computer data interchange and specifies the registration procedure to obtain a so called International Code Designator ( ICD ) value for an identification scheme.

ISO 113 specifies internationally accepted dimensions for plummer blocks.