<?xml version="1.0" encoding="UTF-8"?>

<xs:schema 
    targetNamespace="http://psa.esa.int/psa/em16/frd/v1"
    xmlns="http://psa.esa.int/psa/em16/frd/v1" elementFormDefault="qualified" version="0.1"
    xmlns:pds="http://pds.nasa.gov/pds4/pds/v1" xmlns:xs="http://www.w3.org/2001/XMLSchema">

    <xs:import 
        namespace="http://pds.nasa.gov/pds4/pds/v1"
        schemaLocation="http://pds.nasa.gov/pds4/pds/v1/PDS4_PDS_1B00.xsd"/>

    <!-- Mission / Discipline Area -->
    <xs:element name="pel_parameters" type="pel_parameters"/>
    <xs:complexType name="pel_parameters">
        <xs:sequence>
            <xs:element maxOccurs="1" minOccurs="1" name="specimen_particle_size_units"
                type="pds:ASCII_String" fixed="microns"/>
            <xs:element maxOccurs="1" name="specimen_min_particle_size" type="pds:ASCII_Real"/>
            <xs:element maxOccurs="1" name="specimen_max_particle_size" type="pds:ASCII_Real"/>
            <xs:element maxOccurs="1" name="heater_set_point_temp_units" type="pds:ASCII_String"
                fixed="degC"/>
            <xs:element maxOccurs="1" name="heater_set_point_temp" type="pds:ASCII_Real"/>
        </xs:sequence>
    </xs:complexType>
    

</xs:schema>
