IS : 269, 712, 5514, 1727, 2645,4031, 6932(PART-IX) BS : 890, 915, 1370, 4027,4226 & 4248.
It is used for teh determination of soundness by expansion
meatheod of ordinary and rapid hardneing portland cement, low heat
portland cement and class A lines.
It consists of a small split cylinder forming a mould. On either
side of the split cylinder, two parallel indicating arms with pointed
ends are attached. Supplied complete with two glass plates and a lead