Identifies the official languages used in this standard.
Usage. This element appears once for each official language used in the document. Its value is the two-letter ISO 639 code for the language. For ISO documents, the value will always be one of “en”, “fr”, “ru”, “es”, or “ar” (unless and until the set of official languages changes).
This element is part of the ISOSTS customization of the JATS journal publishing vocabulary; it is not part of the base vocabulary.
Text, numbers, or special characters, zero or more
<standard>
<front>
<iso-meta>
<title-wrap xml:lang="en">...</title-wrap>
<doc-ident>
<sdo>ISO</sdo>
<proj-id>?????</proj-id>
<language>en</language>
<release-version>IS</release-version>
<urn>urn:iso:std:iso:2560:ed-3:v1:en</urn>
</doc-ident>
<std-ident>
<originator>ISO</originator>
<doc-type>is</doc-type>
<doc-number>2560</doc-number>
<edition>3</edition>
<version>1</version>
</std-ident>
<content-language>en</content-language>
<std-ref type="dated">ISO 2560</std-ref>
<std-ref type="undated">ISO 2560:2009</std-ref>
<doc-ref>ISO 2560:2009(en)</doc-ref>
<pub-date>2009-05-30</pub-date>
<release-date>2009-05-30</release-date>
<comm-ref>ISO/TC 44/SC 3</comm-ref>
<secretariat>ANSI</secretariat>
<ics>25.160.20</ics>
<page-count count="29"/>
...
</iso-meta>
</front>
<body>...</body>
</standard>
ISOSTS-iso-metadata.ent