[#mp_units-parts_per_million-0f]
= xref:mp_units.adoc[mp&lowbar;units]::parts&lowbar;per&lowbar;million
:relfileprefix: ../
:mrdocs:

== Synopsis

Declared in `&lt;mp&hyphen;units&sol;framework&sol;unit&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
struct parts&lowbar;per&lowbar;million final
    : xref:mp_units/named_unit-0ec.adoc[named&lowbar;unit&lt;&quot;ppm&quot;, mag&lowbar;ratio&lt;1, 1000000&gt; &ast; one&gt;]
----

== Base Classes

[cols="1,4"]
|===
|Name|Description

| `xref:mp_units/named_unit-0ec.adoc[named&lowbar;unit&lt;&quot;ppm&quot;, mag&lowbar;ratio&lt;1, 1000000&gt; &ast; one&gt;]`
| A named unit
|===


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