ASTM C266, AASHTO T154, ASTM C141, ASTM C91 Applications Used to determine initial and final set times of Portland cement, masonry cement, hydraulic hydrated lime and certain mortars. Details The vertical support shaft has a device to maintain the horizontal arms in alignment. The support assembly is adjustable. The two steel needle weights are calibrated to meet specifications. The needle points are manufactured from stainless steel. The initial setting needle is 2.12mm in diameter and weighs 113 grams. The final setting needle is 1.06mm in diameter and weighs 453.6 grams.