2007-6835 2007-6835 S2007-68352016000100041 Mexico Spain 00 04 2016 00 04 2016 6 1 41 51

1989 ASTM C 109 1999 ASTM C 348 1997 ASTM C 876 2009 ASTM G 1 2003 ASTM G 59 2014 1990 427-50 1997 11 5 5 283-90 1997 11 5 5 267-73 2015 48 4 4 1207-14 2010 25 3 3 371-82 1989 3 1993 15 15 40 2009 1619-24 1987 1 2 2 11-3 2010 162-6 2005 35 4 4 748-57 1992 25 6 6 358-65 1987