Proctor Penetrometer

Product Code: EKE 164 Standrad: ASTM D 1558 EKE 16401     Needle Point Set, comprising one each of 0.25, 0.5, 1, 1.5, 2, 3.5cross sectional area and 6 cm², and a Tommy Pin Complete as above in a carrying case.   The instrument consists of a needle attached to a spring loaded plunger, the stem of which is calibrated to read 0 to 40 kg division. Long stem is graduated at every 12.5mm to read depth of penetration and for use with needles of larger areas . The small penetration stem is also graduation in 12.5mm