2021AASHTO T 277-2021 Standard Method of Test for Electrical Indication of Concrete’s Ability to Resist Chloride Ion Penetration
2015AASHTO T 277-2015 Standard Method of Test for Electrical Indication of Concrete’s Ability to Resist Chloride Ion Penetration
2007AASHTO T 277-2007 Standard Method of Test for Electrical Indication of Concrete抯 Ability to Resist Chloride Ion Penetration
0000 AASHTO T 277-2005
1996AASHTO T 277-1996 Standard Method of Test for Electrical Indication of Concrete's Ability to Resist Chloride Ion Penetration HM-22; Part IIA; ASTM Designation C 1202-94 R(2000)