<xsd:group name="CommodityCoalProperties.model">
<xsd:annotation>
<xsd:documentation xml:lang="en">Items defining the physical attributes of the coal product.</xsd:documentation>
</xsd:annotation>
<xsd:sequence>
<xsd:element name="BTUperLB" type="CoalAttributeDecimal" minOccurs="0">
<xsd:annotation>
<xsd:documentation xml:lang="en">The number of British Thermal Units per Pound of the coal product.</xsd:documentation>
</xsd:annotation>
</xsd:element>
<xsd:element name="topSize" type="CoalAttributeDecimal" minOccurs="0">
<xsd:annotation>
<xsd:documentation xml:lang="en">The smallest sieve opening that will result in less than 5% of a sample of the coal product remaining.</xsd:documentation>
</xsd:annotation>
</xsd:element>
<xsd:element name="finesPassingScreen" type="CoalAttributeDecimal" minOccurs="0" />
<xsd:element name="grindability" type="CoalAttributeDecimal" minOccurs="0">
<xsd:annotation>
<xsd:documentation xml:lang="en">The Hardgrove Grindability Index value of the coal to be delivered.</xsd:documentation>
</xsd:annotation>
</xsd:element>
<xsd:element name="ashFusionTemperature" type="CoalAttributeDecimal" minOccurs="0">
<xsd:annotation>
<xsd:documentation xml:lang="en">The temperature at which the ash form of the coal product fuses completely in accordance with the ASTM International D1857 Standard Test Methodology.</xsd:documentation>
</xsd:annotation>
</xsd:element>
</xsd:sequence>
</xsd:group>
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