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Following ASTM D1238, Instron's CEAST MF50 tester with a piston holding device can be used to test high fluidity of molten thermoplastics.
Melt Flow Testers with load cells increase repeatability of testing Melt Flow Rate and Melt Volume Flow Rate in accordance with ISO 1133-2 and ASTM D1238.
Testing with CEAST Capillary Rheometers and Visual RHEO Software allows manufacturers to understand the change in polymer viscosity related to time.
With a CEAST SR50 Capillary Rheometer, Instron was able to test silicone materials to determine which can undergo extrusion at room temperature, observing ISO 11443.