The Melt Indexer Model MI-4. This unique melt indexer with automatic weight selection can carry out a single weight test according to ISO 1133 and ASTM D1238, procedures B, as well as ISO 1133 and ASTM D1238 Procedure C for the "Half Height / Half Diameter" standard. Tests can be made either with one test load (single load mode) or with several test loads per barrel filling (multiple test load mode).