The ZWICK/ROELL 4106 Flow Index Meter is manufactured to measure the Melt Mass Flow Rate of plastic resins (MFR) and Melt Volume Flow Rate (MVR), according to ISO / ASTM standards.

What is flow index (MFI)? Testing principles of the method
Melt flow index (MFI) is a method of measuring the melt flow of plastic polymers. It is defined as the mass of polymer, expressed in grams, flowing in ten minutes through a capillary tube of a specified diameter and length by a pressure applied through prescribed substitution weights for a specified temperature. intend to replace.
Polymer processors often correlate the value of MFI with the type of polymer they have to choose for different processes, and often this value does not come with units, as it is considered g/10 min.
Similarly, the test conditions of MFI measurements are usually expressed in kilograms rather than any other unit. The method is described in similar standards ASTM D1238 and ISO 1133.

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