Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Median Knoop Hardness values recorded for MaxCem Elite Cement based on the Material / Time / Root Thirds combination. Time was measured in months: 0 (no expiration date); 6 (6 months after expiration date), 12 (12 months – 1 year after expiration date).
