7、EXTENT OF TESTING One tensile and corrosion test , one set of impact tests , and one micrographic test including ferrite measurement shall be carried out for each test lot. where a test lot is as specified in ASTM A962 for non-heat treated , stain hardened bolting including the same lot for the bar material.One tensile and corrosion test , one set of impact tests , and one micrographic test including ferrite measurement shall be carried out for each test lot. where a test lot is as specified in ASTM A962 for non-heat treated , strain hardened bolting including the same lot for the bar material.