<sub-part-number> Document Sub-part Number

The <part-number> gives the part number of the document, for individual parts of multipart documents. For some standards organizations, the part- number granularity is insufficient, and the <part-number> can be used to hold sub-part numbers, for sections and similar components of parts.
Attributes

Base Attributes

Models and Context
May be contained in
Description
Text, numbers, or special characters, zero or more
Expanded Content Model

(#PCDATA)*

Tagged Sample

A part divided into numbered sections

...
<std-ident>
  <originator>IEC</originator>
  <doc-type>is</doc-type>
  <doc-number>60034</doc-number>
  <part-number>18</part-number>
  <sub-part-number content-type="section">41</sub-part-number>
...
</std-ident>...