The identification information (typically the standard number, organization name, and title of the standard) for a cited standard, where “standard” is defined as a document produced by a recognized standards body such as ISO, IEEE, OASIS, ANSI, etc.
<!ELEMENT std (#PCDATA %std-elements;)* >
(#PCDATA | email | ext-link | uri | inline-supplementary-material | related-article | related-object | hr | bold | italic | monospace | overline | overline-start | overline-end | roman | sans-serif | sc | strike | underline | underline-start | underline-end | alternatives | inline-graphic | private-char | chem-struct | inline-formula | tex-math | mml:math | abbrev | milestone-end | milestone-start | named-content | styled-content | fn | target | xref | sub | sup | x)*
Any combination of:
<element-citation>, <mixed-citation>, <product>, <related-article>, <related-object>
In an element-style citation (punctuation and spacing removed):
...
<ref>
<element-citation publisher-type="stds-body">
<std>International standard ISO 10993-10:2002(E): Biological
evaluation of medical devices-Part 10: Tests for irritation and
delayed-type hypersensitivity</std>
<edition>Second</edition>
<year>2002</year>
<month>09</month>
<day>01</day>
</element-citation>
</ref>
...
In a mixed-style citation (punctuation and spacing preserved):
...
<ref>
<mixed-citation publisher-type="stds-body">
<std>International standard ISO 10993-10:2002(E): Biological
evaluation of medical devices-Part 10: Tests for irritation and
delayed-type hypersensitivity</std>.
<edition>Second</edition>.
<year>2002</year>–<month>09</month>–<day>01</day>.
</mixed-citation>
</ref>
...
references3.ent