Data source: OGP
Information source: Defence Geographic Centre
Revision date: 2015-11-25
Target unit: metre
Remarks: Uses Sear's 1922 British yard-metre ratio (UoM code 9040) truncated to 6 significant figures; this truncated ratio (0.914398, UoM code 9099) then converted to other imperial units. 1 chSe(T) = 22 ydSe(T). Used in metrication of Malaya RSO grid.
Definition: OGP XML
<?xml version="1.0" encoding="UTF-8"?> <gml:ConventionalUnit xmlns:epsg="urn:x-ogp:spec:schema-xsd:EPSG:1.0:dataset" xmlns:gml="http://www.opengis.net/gml/3.2" xmlns:xlink="http://www.w3.org/1999/xlink" gml:id="iogp-uom-9301"> <gml:metaDataProperty> <epsg:CommonMetaData> <epsg:alias alias="chain" code="3348" codeSpace="urn:ogc:def:naming-system:EPSG::7301" /> <epsg:alias alias="chSe(T)" code="3349" codeSpace="urn:ogc:def:naming-system:EPSG::7302" /> <epsg:alias alias="chain[SeT]" code="7086" codeSpace="urn:ogc:def:naming-system:EPSG::7306" /> <epsg:informationSource>Defence Geographic Centre</epsg:informationSource> <epsg:revisionDate>2015-11-25</epsg:revisionDate> <epsg:changes> <epsg:changeID xlink:href="urn:ogc:def:change-request:EPSG::2006.901" /> <epsg:changeID xlink:href="urn:ogc:def:change-request:EPSG::2015.062" /> </epsg:changes> <epsg:show>true</epsg:show> <epsg:isDeprecated>false</epsg:isDeprecated> </epsg:CommonMetaData> </gml:metaDataProperty> <gml:identifier codeSpace="IOGP">urn:ogc:def:uom:EPSG::9301</gml:identifier> <gml:name>British chain (Sears 1922 truncated)</gml:name> <gml:remarks>Uses Sear's 1922 British yard-metre ratio (UoM code 9040) truncated to 6 significant figures; this truncated ratio (0.914398, UoM code 9099) then converted to other imperial units. 1 chSe(T) = 22 ydSe(T). Used in metrication of Malaya RSO grid.</gml:remarks> <gml:quantityType>length</gml:quantityType> <gml:conversionToPreferredUnit uom="urn:ogc:def:uom:EPSG::9001"> <gml:formula> <gml:b>20.116756</gml:b> <gml:c>1</gml:c> </gml:formula> </gml:conversionToPreferredUnit> </gml:ConventionalUnit>
<?xml version="1.0" encoding="UTF-8"?> <gml:ConventionalUnit xmlns:epsg="urn:x-ogp:spec:schema-xsd:EPSG:1.0:dataset" xmlns:gml="http://www.opengis.net/gml/3.2" xmlns:xlink="http://www.w3.org/1999/xlink" gml:id="iogp-uom-9301"> <gml:metaDataProperty> <epsg:CommonMetaData> <epsg:alias alias="chain" code="3348" codeSpace="urn:ogc:def:naming-system:EPSG::7301" /> <epsg:alias alias="chSe(T)" code="3349" codeSpace="urn:ogc:def:naming-system:EPSG::7302" /> <epsg:alias alias="chain[SeT]" code="7086" codeSpace="urn:ogc:def:naming-system:EPSG::7306" /> <epsg:informationSource>Defence Geographic Centre</epsg:informationSource> <epsg:revisionDate>2015-11-25</epsg:revisionDate> <epsg:changes> <epsg:changeID xlink:href="urn:ogc:def:change-request:EPSG::2006.901" /> <epsg:changeID xlink:href="urn:ogc:def:change-request:EPSG::2015.062" /> </epsg:changes> <epsg:show>true</epsg:show> <epsg:isDeprecated>false</epsg:isDeprecated> </epsg:CommonMetaData> </gml:metaDataProperty> <gml:identifier codeSpace="IOGP">urn:ogc:def:uom:EPSG::9301</gml:identifier> <gml:name>British chain (Sears 1922 truncated)</gml:name> <gml:remarks>Uses Sear's 1922 British yard-metre ratio (UoM code 9040) truncated to 6 significant figures; this truncated ratio (0.914398, UoM code 9099) then converted to other imperial units. 1 chSe(T) = 22 ydSe(T). Used in metrication of Malaya RSO grid.</gml:remarks> <gml:quantityType>length</gml:quantityType> <gml:conversionToPreferredUnit uom="urn:ogc:def:uom:EPSG::9001"> <gml:formula> <gml:b>20.116756</gml:b> <gml:c>1</gml:c> </gml:formula> </gml:conversionToPreferredUnit> </gml:ConventionalUnit>