As Per IS : 4031 & BS: 1881, ASTM: C 490

The Instrument is used for determining the volume change of cement concrete.

Specifications:

The apparatus comprises of onemould 100mm x 100mm x 250mm, effective gauge length complete with base plate, Four reference pins, One length comparator frame, One stainless steel reference bar with insulated grip, and one dial gauge, 0.02mm x 10mm.