Specimen Molds—Molds for making test specimens
shall be 2-in. (50.8 mm) split cube molds made of noncorrodible
material and shall be sufficiently rigid to prevent spreading
during molding. The molds shall have not more than three cube
compartments and shall be separable into not more than two
parts. When assembled, the parts of the molds shall be held
firmly together, and dimensions shall conform to the following