2007-0705 2007-0705 S2007-07052018000100244 10.21640/ns.v10i20.1316 Mexico Spain Mexico Mexico 00 00 2018 00 00 2018 10 20 244 262

2012 2012 16 3 3 135-43 ASTM 2004 ASTM 2004 ASTM 2004 ASTM 2004 2012 35 5 5 441-50 CWA 2008 2012 6 6 1003-10 1998 39 12-28 1998 75 9 9 699-706 2015 50 50 88-99 2014 582 582 708-17 2011 241 5 5 1407-13 2012 2008 31 10 10 841-9 2009 65 65 69-78 2013 34 34 189-203 1981 104 104 1545-50 1987 15 1 1 30-7 1987 150 1 1 42-52 1991 25 11 11 2487-90 1989 169 169 225-32 2014 Nantes, France 2009 88 9 9 188-92 2002 307 307 236-9 2014 81 81 309-17 2012 32 3 3 19-26 1994 116 116 457-64 2008 238 12 12 3186-93 2000 67 6 6 481-514