compulsory, single

—

Defines the oxygen fraction of a breathing gas, given as a real number less or equal 1.0 in percent (of volume).

While the other components of a breathing gas need not to be given (also if they are not contained in that breathing gas), the oxygen fraction must be given.

<mix>

—

<ar> <equivalentairdepth> <h2> <he> <maximumoperationdepth> <maximumpo2> <mix>, <name>, <n2>, <priceperlitre>

(see also <mix>)

<mix id="alfreds_nitrox">
    <name>my_favorite_nitrox_mix</name>
    <!-- 37,5 % oxygen -->
    <o2>0.375</o2>
    <!-- 62,5 % nitrogen -->
    <n2>0.625</n2>
    <!-- no other components in breathing gas -->
    <he>0.0</he>
    <ar>0.0</ar>
    <h2>0.0</h2>
</mix>