0120-100X 0120-100X S0120-100X2012000100004 Colombia 00 06 2012 00 06 2012 25 1 25 34

1 1998 87 1-2 1-2 123-35 2 2005 39 2-3 2-3 289-96 3 Environmental Protection Agency US 2003 4 Official Journal of the European Communities 1986 5 2011 83 4 4 502- 9 6 Finagro de Agricultura y Desarrollo Rural 7 Ministerio de Ambiente, Vivienda y Desarrollo Territorial Ministerio de Agricultura y Desarrollo Rural Departamento Nacional de Planeación 2006 8 sept ie mb Armenia 9 2009 22 1 1 21-25 10 Office of water 2000 11 2011 141 3-4 3-4 461- 5 12 2008 12 1 1 116-40 13 2000 34 3 3 725-34 14 2000 41 3 3 297-302 15 2003 7 3 3 701-6 16 2008 89 4 4 485-9 17 2009 100 17 17 3882-90 18 2011 172 1 1 430-43 19 2003 86 2 2 131-7 20 Environmental Protection Agency US 1992 21 1998 64 1 1 55-61 22 1997 59 1 1 57-62 23 1995 24 153-64 24 2001 73 5 5 607-11 25 2009 443- 77 26 2008 99 10 10 4269-74 27 International Organization for standardization 2000 28 APHA-AWWA-WPCF 2001 20 29 FDA 1995 8 30 Norma Oficial Mexicana 1996 31 2011 4 2 2 182-90 32 2004 1 1 1 34-8 33 2011 37 9 9 1350-9 34 2009 169 1-3 1-3 882-9 35 2003 8 1 1 93-102 36 2008 99 5 5 1057-65 37 2000 73 3 3 213-9 38 2010 101 14 14 5645-51 39 2010 74 1 1 87-92 40 2003 41 2003 25 4 4 389-98 42 2006 97 18 18 2447-52 43 2010 68 1 1 75-82