<xsd:complexType name="GasProduct">
<xsd:annotation>
<xsd:documentation xml:lang="en">A type defining the characteristics of the gas being traded in a physically settled gas transaction.</xsd:documentation>
</xsd:annotation>
<xsd:sequence>
<xsd:element name="type" type="GasProductTypeEnum" minOccurs="0">
<xsd:annotation>
<xsd:documentation xml:lang="en">The type of gas to be delivered.</xsd:documentation>
</xsd:annotation>
</xsd:element>
<xsd:choice minOccurs="0">
<xsd:element name="calorificValue" type="NonNegativeDecimal">
<xsd:annotation>
<xsd:documentation xml:lang="en">The calorific value of the gas to be delivered, specified in megajoules per cubic meter (MJ/m3).</xsd:documentation>
</xsd:annotation>
</xsd:element>
<xsd:element name="quality" type="GasQuality">
<xsd:annotation>
<xsd:documentation xml:lang="en">The quality of the gas to be delivered.</xsd:documentation>
</xsd:annotation>
</xsd:element>
</xsd:choice>
</xsd:sequence>
</xsd:complexType>
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