the Dead Head Oedometer Apparatus meeting specification ASTM D2435 ASTM D3877 ASTM D4546 BS 1377 . each item can be order separately , these items including Consolidation Cell 50mm Dia , SUS Cut Ring , Porous Stone, Top Cap, Digital Gauge 12.7mm *0.01mm, complete set of 50kg , Data Acquistion Unit , English software Sytem , working table