(As per IP 31 and 132 and ASTM D-566 specifications)

As per IP 31, the apparatus consists of brass sleeve and case with metal cup and a glass boiling tube with cork fitted to a bath. A 600 ml beaker is provided. The assembly is kept on heater with energy regulator control and stand with F.H.P. electric stirrer.

As per IP 132, the unit comprises a glass beaker with fibre cover together with glass test tube with three indentations to receive chromium plated brass cup, cork for tube, and a 1.5 mm diameter brass rod. The assembly is kept on heater with energy regulator and stand with F.H.P. motor stirrer.