The 4" Lottman Breaking Head supports the following standards: ASTM D6931, AASHTO T283 Breaking heads for testing tensile strength. H-1349 has 1/2" wide upper and lower segments for use on 4" samples. Meet ASTM D6931, AASHTO T283. Shipping wt. 10 lbs.
Breaking heads for testing tensile strength. H-1349 has 1/2" wide
upper and lower segments for use on 4" samples. Meet ASTM D6931, AASHTO
T283. Shipping wt. 10 lbs.