Used for quantitative determination of bitumen in hot-mixed paving mixtures and pavement samples. Unit is a stainless steel 3000g capacity combination vacuum/storage tank with a 12" (305mm) dia. Filtering surface. Unit includes connecting hose, (100) H-1497.613 Filter papers, test procedure, see-through extraction gauge, sight tube and vacuum gauge. For replacement filter paper, use H-1497 series. Meets ASTM D2172 (Meth. E); AASHTO T164 (Method E). Shipping wt. 84 lbs. (38kg)