1.1. This test method covers determination of the fineness of portland cement as represented by
a calculated measure of specific surface, expressed as square centimeters of total surface area
per gram, or square meters of total surface area per kilogram
AASHTO T 98-1999 history
2012AASHTO T 98-2012 Standard Method of Test for Fineness of Portland Cement by the Turbidimeter
1999AASHTO T 98-1999 Standard Method of Test for Fineness of Portland Cement by the Turbidimeter