"UOM_CODE","UNIT_OF_MEAS_NAME","UNIT_OF_MEAS_TYPE","TARGET_UOM_CODE","FACTOR_B","FACTOR_C","REMARKS","INFORMATION_SOURCE","DATA_SOURCE","REVISION_DATE","CHANGE_ID","DEPRECATED"
9001,metre,length,9001,1.0,1.0,Also known as International metre. SI standard unit.,ISO 1000.,EPSG,1995-06-02 00:00:00,,0
9002,foot,length,9001,0.3048,1.0,,ISO 1000; 1958,EPSG,1995-06-02 00:00:00,,0
9003,US survey foot,length,9001,12.0,39.37,Used in USA.,EPSG,EPSG,2000-05-07 00:00:00,99.99,0
9005,Clarke's foot,length,9001,0.304797265,1.0,"Assumes Clarke's 1865 ratio of 1 British foot = 0.304797265 French legal metres applies to the international metre.   Used in older Australian, southern African & British West Indian mapping.",Australian Land Information Group  www.auslig.gov.au/geodesy/histry.htm,EPSG,2001-01-21 00:00:00,97.234 99.99  2000.05,0
9014,fathom,length,9001,1.8288,1.0,= 6 feet.,,EPSG,1995-06-02 00:00:00,,0
9030,nautical mile,length,9001,1852.0,1.0,,,EPSG,1996-10-18 00:00:00,96.24,0
9031,German legal metre,length,9001,1.0000135965,1.0,Used in Namibia.,Chief Directorate Surveys and Land Information; Mowbray; South Africa,EPSG,1997-06-16 00:00:00,,0
9033,US survey chain,length,9001,792.0,39.37,Used in USA primarily for public lands cadastral work.,Bureau of Land Management technical bulletin 6 (1973) and Standard Field Tables 8th edition (1956).,EPSG,2000-05-07 00:00:00,99.99,0
9034,US survey link,length,9001,7.92,39.37,Used in USA primarily for public lands cadastral work.,Bureau of Land Management technical bulletin 6 (1973) and Standard Field Tables 8th edition (1956).,EPSG,2000-05-07 00:00:00,99.99,0
9035,US survey mile,length,9001,63360.0,39.37,Used in USA primarily for public lands cadastral work.,Bureau of Land Management technical bulletin 6 (1973) and Standard Field Tables 8th edition (1956).,EPSG,2000-05-07 00:00:00,99.99,0
9036,kilometre,length,9001,1000.0,1.0,,ISO 1000.,EPSG,1998-11-11 00:00:00,,0
9037,Clarke's yard,length,9001,0.914391795,1.0,"=3 Clarke's feet.  Assumes Clarke's 1865 ratio of 1 British foot = 0.304797265 French legal metres applies to the international metre.   Used in older Australian, southern African & British West Indian mapping.",Australian Land Information Group  www.auslig.gov.au/geodesy/histry.htm,EPSG,2000-05-07 00:00:00,97.233  99.99,0
9038,Clarke's chain,length,9001,20.11661949,1.0,"=22 Clarke's yards.  Assumes Clarke's 1865 ratio of 1 British foot = 0.304797265 French legal metres applies to the international metre.   Used in older Australian, southern African & British West Indian mapping.",Australian Land Information Group  www.auslig.gov.au/geodesy/histry.htm,EPSG,2000-05-07 00:00:00,97.233  99.99,0
9039,Clarke's link,length,9001,0.2011661949,1.0,"=1/100 Clarke's chain. Assumes Clarke's 1865 ratio of 1 British foot = 0.304797265 French legal metres applies to the international metre.   Used in older Australian, southern African & British West Indian mapping.",Australian Land Information Group  www.auslig.gov.au/geodesy/histry.htm,EPSG,2000-05-07 00:00:00,97.233  99.99,0
9040,British yard (Sears 1922),length,9001,36.0,39.370147,Uses Sear's 1922 British yard-metre ratio as given by Bomford as 39.370147 inches per metre.  Used in East Malaysian and older New Zealand mapping.,"G. Bomford ""Geodesy"" 2nd edition 1962; after J.S.Clark ""Remeasurement of the Old Length Standards""; Empire Survey Review no. 90; 1953.",EPSG,2000-05-07 00:00:00,97.233  99.99,0
9041,British foot (Sears 1922),length,9001,12.0,39.370147,Uses Sear's 1922 British yard-metre ratio as given by Bomford as 39.370147 inches per metre.  Used in East Malaysian and older New Zealand mapping.,"G. Bomford ""Geodesy"" 2nd edition 1962; after J.S.Clark ""Remeasurement of the Old Length Standards""; Empire Survey Review no. 90; 1953.",EPSG,2000-05-07 00:00:00,97.233  99.99,0
9042,British chain (Sears 1922),length,9001,792.0,39.370147,Uses Sear's 1922 British yard-metre ratio as given by Bomford as 39.370147 inches per metre.  Used in East Malaysian and older New Zealand mapping.,"G. Bomford ""Geodesy"" 2nd edition 1962; after J.S.Clark ""Remeasurement of the Old Length Standards""; Empire Survey Review no. 90; 1953.",EPSG,2000-05-07 00:00:00,97.233  99.99,0
9043,British link (Sears 1922),length,9001,7.92,39.370147,Uses Sear's 1922 British yard-metre ratio as given by Bomford as 39.370147 inches per metre.  Used in East Malaysian and older New Zealand mapping.,"G. Bomford ""Geodesy"" 2nd edition 1962; after J.S.Clark ""Remeasurement of the Old Length Standards""; Empire Survey Review no. 90; 1953.",EPSG,2000-05-07 00:00:00,97.233  99.99,0
9050,British yard (Benoit 1895 A),length,9001,0.9143992,1.0,Uses Benoit's 1895 British yard-metre ratio as given by Clark as 0.9144992 metres per yard.  Used for deriving metric size of ellipsoid in Palestine.,"J.S.Clark; ""Remeasurement of the Old Length Standards""; Empire Survey Review no. 90; 1953.",EPSG,2000-05-07 00:00:00,97.233  99.99,0
9051,British foot (Benoit 1895 A),length,9001,0.9143992,3.0,Uses Benoit's 1895 British yard-metre ratio as given by Clark as 0.9144992 metres per yard.  Used for deriving metric size of ellipsoid in Palestine.,"J.S.Clark; ""Remeasurement of the Old Length Standards""; Empire Survey Review no. 90; 1953.",EPSG,2000-05-07 00:00:00,97.233  99.99,0
9052,British chain (Benoit 1895 A),length,9001,20.1167824,1.0,Uses Benoit's 1895 British yard-metre ratio as given by Clark as 0.9144992 metres per yard.  Used for deriving metric size of ellipsoid in Palestine.,"J.S.Clark; ""Remeasurement of the Old Length Standards""; Empire Survey Review no. 90; 1953.",EPSG,2000-05-07 00:00:00,97.233  99.99,0
9053,British link (Benoit 1895 A),length,9001,0.201167824,1.0,Uses Benoit's 1895 British yard-metre ratio as given by Clark as 0.9144992 metres per yard.  Used for deriving metric size of ellipsoid in Palestine.,"J.S.Clark; ""Remeasurement of the Old Length Standards""; Empire Survey Review no. 90; 1953.",EPSG,2000-05-07 00:00:00,97.233  99.99,0
9060,British yard (Benoit 1895 B),length,9001,36.0,39.370113,"G. Bomford ""Geodesy"" 2nd edition 1962; after J.S.Clark ""Remeasurement of the Old Length Standards""; Empire Survey Review no. 90; 1953.","G. Bomford ""Geodesy"" 2nd edition 1962; after J.S.Clark ""Remeasurement of the Old Length Standards""; Empire Survey Review no. 90; 1953.",EPSG,2000-05-07 00:00:00,97.233  99.99,0
9061,British foot (Benoit 1895 B),length,9001,12.0,39.370113,Uses Benoit's 1895 British yard-metre ratio as given by Bomford as 39.370113 inches per metre.  Used in West Malaysian mapping.,"G. Bomford ""Geodesy"" 2nd edition 1962; after J.S.Clark ""Remeasurement of the Old Length Standards""; Empire Survey Review no. 90; 1953.",EPSG,2000-05-07 00:00:00,97.233  99.99,0
9062,British chain (Benoit 1895 B),length,9001,792.0,39.370113,Uses Benoit's 1895 British yard-metre ratio as given by Bomford as 39.370113 inches per metre.  Used in West Malaysian mapping.,"G. Bomford ""Geodesy"" 2nd edition 1962; after J.S.Clark ""Remeasurement of the Old Length Standards""; Empire Survey Review no. 90; 1953.",EPSG,2000-05-07 00:00:00,97.233  99.99,0
9063,British link (Benoit 1895 B),length,9001,7.92,39.370113,Uses Benoit's 1895 British yard-metre ratio as given by Bomford as 39.370113 inches per metre.  Used in West Malaysian mapping.,"G. Bomford; ""Geodesy""; 3rd edition 1975",EPSG,2000-05-07 00:00:00,97.233  99.99,0
9070,British foot (1865),length,9001,0.9144025,3.0,Uses Clark's estimate of 1853-1865 British foot-metre ratio of 0.9144025 metres per yard.  Used in 1962 and 1975 estimates of Indian foot.,"J.S.Clark; ""Remeasurement of the Old Length Standards""; Empire Survey Review no. 90; 1953.",EPSG,2000-05-07 00:00:00,97.233  99.99,0
9080,Indian foot,length,9001,12.0,39.370142,Indian Foot = 0.99999566 British feet (A.R.Clarke 1865).  British yard (= 3 British feet) taken to be J.S.Clark's 1865 value of 0.9144025 metres.,"G. Bomford; ""The Re-adjustment of the Indian Triangulation""; Survey of India Professional Paper 28; 1939.",EPSG,2000-05-07 00:00:00,97.231  99.99,0
9081,Indian foot (1937),length,9001,0.30479841,1.0,Indian Foot = 0.99999566 British feet (A.R.Clarke 1865).  British foot taken to be 1895 Benoit value of 12/39.370113m.  Rounded to 8 decimal places as 0.30479841. Used from Bangladesh to Vietnam.  Previously used in India and Pakistan but superseded.,"G. Bomford; ""The Re-adjustment of the Indian Triangulation""; Survey of India Professional Paper 28; 1939.",EPSG,2000-05-07 00:00:00,97.231  99.99,0
9082,Indian foot (1962),length,9001,0.3047996,1.0,Indian Foot = 0.99999566 British feet (A.R.Clarke 1865).  British yard (3 feet) taken to be J.S. Clark's 1865 value of 0.9144025m. Rounded to 8 significant figures with a small error as 1 Ind ft=0.3048996m.  Used in Pakistan since metrication.,"G. Bomford; ""Geodesy""; 2nd edition 1962",EPSG,2000-05-07 00:00:00,97.231  99.99,0
9083,Indian foot (1975),length,9001,0.3047995,1.0,Indian Foot = 0.99999566 British feet (A.R.Clarke 1865).  British yard (3 feet) taken to be J.S. Clark's 1865 value of 0.9144025m. Rounded to 8 significant figures as 1 Ind ft=0.3048995m.  Used in India since metrication.,"G. Bomford; ""Geodesy""; 3rd edition 1975",EPSG,2000-05-07 00:00:00,97.231  99.99,0
9084,Indian yard,length,9001,36.0,39.370142,Indian Foot = 0.99999566 British feet (A.R.Clarke 1865).  British yard (= 3 British feet) taken to be J.S.Clark's 1865 value of 0.9144025 metres.,"G. Bomford; ""The Re-adjustment of the Indian Triangulation""; Survey of India Professional Paper 28; 1939.",EPSG,2000-05-07 00:00:00,97.231  99.99,0
9085,Indian yard (1937),length,9001,0.91439523,1.0,Indian Foot = 0.99999566 British feet (A.R.Clarke 1865).  British foot taken to be 1895 Benoit value of 12/39.370113m.  Rounded to 8 decimal places as 0.30479841. Used from Bangladesh to Vietnam.  Previously used in India and Pakistan but superseded.,"G. Bomford; ""The Re-adjustment of the Indian Triangulation""; Survey of India Professional Paper 28; 1939.",EPSG,2000-05-07 00:00:00,97.231  99.99,0
9086,Indian yard (1962),length,9001,0.9143988,1.0,Indian Foot = 0.99999566 British feet (A.R.Clarke 1865).  British yard (3 feet) taken to be J.S. Clark's 1865 value of 0.9144025m. Rounded to 8 significant figures with a small error as 1 Ind ft=0.3048996m.  Used in Pakistan since metrication.,"G. Bomford; ""Geodesy""; 2nd edition 1962",EPSG,2000-05-07 00:00:00,97.231  99.99,0
9087,Indian yard (1975),length,9001,0.9143985,1.0,Indian Foot = 0.99999566 British feet (A.R.Clarke 1865).  British yard (3 feet) taken to be J.S. Clark's 1865 value of 0.9144025m. Rounded to 8 significant figures as 1 Ind ft=0.3048995m.  Used in India since metrication.,"G. Bomford; ""Geodesy""; 3rd edition 1975",EPSG,2000-05-07 00:00:00,97.231  99.99,0
9093,Statute mile,length,9001,1609.344,1.0,=5280 feet,EPSG,EPSG,2000-03-07 00:00:00,,0
9094,Gold Coast foot,length,9001,6378300.0,20926201.0,"Used in Ghana and some adjacent parts of British west Africa prior to metrication, except for the metrication of projection defining parameters when British foot (Sears 1922) used.",Ordnance Survey International,EPSG,2001-01-21 00:00:00,2000.86,0
9095,British foot (1936),length,9001,0.3048007491,1.0,For the 1936 retriangulation OSGB defines the relationship of feet of 1796 to the International metre through log(1.48401603) exactly [=0.3048007491...]. Also used for metric conversions in Ireland.,"1. ""The Retriangulation of Great Britain"", Ordnance Survey of Great Britain.
2. ""The Irish Grid - A Description of the Co-ordinate Reference System"" published by Ordnance Survey of Ireland, Dublin and Ordnance Survey of Northern Ireland, Belfast.",EPSG,2003-06-27 00:00:00,2002.621,0
9101,radian,angle,9101,1.0,1.0,SI standard unit.,ISO 1000:1992,EPSG,1995-06-02 00:00:00,,0
9102,degree,angle,9101,3.14159265358979,180.0,= pi/180 radians,,EPSG,2002-11-18 00:00:00,96.22 2002.86,0
9103,arc-minute,angle,9101,3.14159265358979,10800.0,1/60th degree = ((pi/180) / 60) radians,,EPSG,2002-11-18 00:00:00,96.22 2002.86,0
9104,arc-second,angle,9101,3.14159265358979,648000.0,1/60th arc-minute = ((pi/180) / 3600) radians,,EPSG,2002-11-18 00:00:00,96.22 2002.86,0
9105,grad,angle,9101,3.14159265358979,200.0,=pi/200 radians.,,EPSG,2002-11-18 00:00:00,96.22  99.05 2002.86,0
9106,gon,angle,9101,3.14159265358979,200.0,=pi/200 radians,,EPSG,2002-11-18 00:00:00,96.22 2002.86,0
9107,degree minute second,angle,9102,,,"Degree representation. Format: signed degrees (integer) - arc-minutes (integer) - arc-seconds (real, any precision). Different symbol sets are in use as field separators, for example º ' "". Convert to degrees using algorithm.",EPSG,EPSG,2002-11-22 00:00:00,96.19 2002.07 2002.78,0
9108,degree minute second hemisphere,angle,9102,,,"Degree representation. Format: degrees (integer) - arc-minutes (integer) - arc-seconds (real) - hemisphere abbreviation (single character N S E or W). Different symbol sets are in use as field separators for example º ' "". Convert to deg using algorithm.",EPSG,EPSG,2002-11-22 00:00:00,96.19 2002.07 2002.78,0
9109,microradian,angle,9101,1.0,1000000.0,rad * 10E-6,ISO 1000.,EPSG,1996-10-18 00:00:00,99.05,0
9110,sexagesimal DMS,angle,9102,,,Pseudo unit format: signed degrees - period - minutes (two digits) - integer seconds (two digits) - fraction of seconds (any precision). Must include leading zero in minutes and seconds and exclude decimal point for seconds. Convert to deg using formula.,EPSG,EPSG,2002-11-22 00:00:00,2002.27 2002.78,0
9111,sexagesimal DM,angle,9102,,,Pseudo unit. Format: sign - degrees - decimal point - integer minutes (two digits) - fraction of minutes (any precision).  Must include leading zero in integer minutes.  Must exclude decimal point for minutes.  Convert to deg using algorithm.,EPSG,EPSG,2002-11-22 00:00:00,2002.07 2002.78,0
9112,centesimal minute,angle,9101,3.14159265358979,20000.0,1/100 of a grad and gon = ((pi/200) / 100) radians,http://www.geodesy.matav.hu/xgonmil.htm,EPSG,2002-11-18 00:00:00,98.48  99.51 2002.86,0
9113,centesimal second,angle,9101,3.14159265358979,2000000.0,"1/100 of a centesimal minute or 1/10,000th of a grad and gon = ((pi/200) / 10000) radians",http://www.geodesy.matav.hu/xgonmil.htm,EPSG,2002-11-18 00:00:00,99.51 2002.86,0
9114,mil_6400,angle,9101,3.14159265358979,3200.0,Angle subtended by 1/6400 part of a circle.  Approximates to 1/1000th radian.  Note that other approximations (notably 1/6300 circle and 1/6000 circle) also exist.,http://www.geodesy.matav.hu/xgonmil.htm,EPSG,1999-10-20 00:00:00,99.51,0
9115,degree minute,angle,9102,,,"Degree representation. Format: signed degrees (integer)  - arc-minutes (real, any precision). Different symbol sets are in use as field separators, for example º '. Convert to degrees using algorithm.",EPSG,EPSG,2002-11-22 00:00:00,2002.78,0
9116,degree hemisphere,angle,9102,,,"Degree representation. Format: degrees (real, any precision) - hemisphere abbreviation (single character N S E or W). Convert to degrees using algorithm.",EPSG,EPSG,2002-11-22 00:00:00,,0
9117,hemisphere degree,angle,9102,,,"Degree representation. Format: hemisphere abbreviation (single character N S E or W) - degrees (real, any precision). Convert to degrees using algorithm.",EPSG,EPSG,2002-11-22 00:00:00,,0
9118,degree minute hemisphere,angle,9102,,,"Degree representation. Format: degrees (integer) - arc-minutes (real, any precision) - hemisphere abbreviation (single character N S E or W). Different symbol sets are in use as field separators, for example º '. Convert to degrees using algorithm.",EPSG,EPSG,2002-11-22 00:00:00,,0
9119,hemisphere degree minute,angle,9102,,,"Degree representation. Format:  hemisphere abbreviation (single character N S E or W) - degrees (integer) - arc-minutes (real, any precision). Different symbol sets are in use as field separators, for example º '. Convert to degrees using algorithm.",EPSG,EPSG,2002-11-22 00:00:00,,0
9120,hemisphere degree minute second,angle,9102,,,"Degree representation. Format: hemisphere abbreviation (single character N S E or W) - degrees (integer) - arc-minutes (integer) - arc-seconds (real). Different symbol sets are in use as field separators for example º ' "". Convert to deg using algorithm.",EPSG,EPSG,2002-11-22 00:00:00,,0
9121,sexagesimal DMS.s,angle,9102,,,"Pseudo unit. Format: signed degrees - minutes (two digits) - seconds (real, any precision). Must include leading zero in minutes and seconds where value is under 10 and include decimal separator for seconds. Convert to degree using algorithm.",ISO 6709:1983.,EPSG,2002-11-22 00:00:00,,0
9122,degree (supplier to define representation),angle,9101,3.14159265358979,180.0,"= pi/180 radians. The degree representation (e.g. decimal, DMSH, etc.) must be clarified by suppliers of data associated with this code.",EPSG,EPSG,2004-01-05 00:00:00,,0
9201,unity,scale,9201,1.0,1.0,,,EPSG,1996-09-12 00:00:00,,0
9202,parts per million,scale,9201,1.0,1000000.0,,,EPSG,1996-09-12 00:00:00,,0
9203,coefficient,scale,9201,,,Used when parameters are coefficients.  They inherently take the units which depend upon the term to which the coefficient applies.,EPSG,EPSG,2000-03-07 00:00:00,,0
9204,Bin width 330 US survey feet,length,9001,3960.0,39.37,,EPSG,EPSG,2000-10-19 00:00:00,2000.59,0
9205,Bin width 165 US survey feet,length,9001,1980.0,39.37,,EPSG,EPSG,2000-10-19 00:00:00,2000.59,0
9206,Bin width 82.5 US survey feet,length,9001,990.0,39.37,,EPSG,EPSG,2000-10-19 00:00:00,2000.59,0
9207,Bin width 37.5 metres,length,9001,37.5,1.0,,EPSG,EPSG,2000-10-19 00:00:00,2000.59,0
9208,Bin width 25 metres,length,9001,25.0,1.0,,EPSG,EPSG,2000-10-19 00:00:00,2000.59,0
9209,Bin width 12.5 metres,length,9001,12.5,1.0,,EPSG,EPSG,2000-10-19 00:00:00,2000.59,0
9210,Bin width 6.25 metres,length,9001,6.25,1.0,,EPSG,EPSG,2000-10-19 00:00:00,2000.59,0
9211,Bin width 3.125 metres,length,9001,3.125,1.0,,EPSG,EPSG,2000-10-19 00:00:00,2000.59,0
