Gillmore Needle Apparatus ASTM-C191
This instrument is used for determining the time setting of hydraulic cement.
A base with a vertical shaft and two horizontal arms. The lower arm is adjustable for height. 1 No. Initial Needle 1/12 inch dia 1 /4 lb. Wt. 1 No. Final Needle 1/12 inch dia. 1lb.wt 1No. Glass base plate.