The vacuum pycnometer used for rice testing. Determines the maximum specific gravity of bituminous paving mixtures with maximum aggregate size up to 3/4”. Featuring a 2000g capacity aluminum canister 7.5” dia. x 6” deep. In addition an extra-thick acrylic lid for viewing the sample during testing. The acrylic lid has two 1/4” hose connection ports. One for the vacuum source and the other offset through the lid for the vacuum measuring device. The HM-402 comes complete with canister, acrylic lid, metal calibration lid & vacuum tubing. The HM-402-1 pycnometer comes with the canister, vacuum tubing and acrylic lid only.