AS-602 Apparent Density Tester is designed according to international standard ASTM D 1895 Standard Test Method for Apparent Density, Bulk Factor, and Pourability of Plastic Materials - Test Method B. AS-602 Apparent Density Tester is used to measure the apparent density of coarse, granular materials, including dice and pellets, that either cannot be poured or that pour with difficulty through the funnel described in ASTM D1895 Test Method A.