<?xml version="1.0"?>
<tree>
    <field name="range_type"/>
    <field name="analysis"/>
    <field name="product_type"/>
    <field name="matrix"/>
    <field name="uom"/>
    <field name="concentration"/>
    <field name="min"/>
    <field name="min95"/>
    <field name="max95"/>
    <field name="max"/>
    <field name="reference"/>
    <field name="low_level"/>
    <field name="middle_level"/>
    <field name="high_level"/>
    <field name="low_level_value"/>
    <field name="middle_level_value"/>
    <field name="high_level_value"/>
    <field name="low_level_coefficient_variation"/>
    <field name="middle_level_coefficient_variation"/>
    <field name="high_level_coefficient_variation"/>
    <field name="factor"/>
</tree>
