The unit consists of a pressure vessel with clamp for sealing cap, capacity is 20 gms. Rubber sealing gasket, pressure gauge calibrated in percentage moisture content 0-25% x 0.25% on the wet weight basis, an electronic balance for weighing sample, a scoop for measuring carbide reagent, a bottle of reagent, one cleaning brush and a set of 4 steel balls for thorough mixing. Complete in highly polished wooden carrying case with handle.