The American Road & Transportation Builders Association
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AASHTO T 71-2008
AASHTO T 71-2008 history
2008AASHTO T 71-2008 Standard Method of Test for Effect of Organic Impurities in Fine Aggregate on Strength of Mortar
2007AASHTO T 71-2007 Standard Method of Test for Effect of Organic Impurities in Fine Aggregate on Strength of Mortar
1993AASHTO T 71-1993 Standard Method of Test for Effect of Organic Impurities in Fine Aggregate on Strength of Mortar HM-22; Part IIA; ASTM Designation C 87-83(1995) R(2001)