What factors affect the accuracy of a melt flow index tester? Professional

These include the temperature control within the testing chamber, ensuring it remains constant throughout the test to prevent variations in material flow. The cleanliness of the extrusion orifice is crucial to avoid any blockages that could affect the flow rate. Additionally, the applied load and measurement of the extruded material's weight need to be precise to calculate the melt flow index accurately. The choice of material and its properties, such as viscosity and molecular weight, can also impact the results. Regular calibration and maintenance of the melt flow indexer are essential to ensure its accuracy over time.

Read More : https://www.prestogroup.com/products/melt-flow-index-deluxe/#:~:text=Presto%20melt%20flow%20index%20tester%20is%20a%20microprocessor%2Dbased%20PID,accurate%20and%20precise%20testing%20results.