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ASTM WK32760

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Work Item: ASTM WK32760 - Revision of D1238 - 10 Standard Test Method for Melt Flow Rates of Thermoplastics by Extrusion Plastometer


Active Standard: D1238 - 10

Developed by Subcommittee: D20.30 | Committee D20 Home | Contact Staff Manager



1. Rationale

The proposed new procedure E focuses on the melt index measurement of polymer materials with a melt index lower than 1 gr/10min. Main issue in this procedure is to fulfill the need to establish a steady state flow for a single melt index measurement, in conformity with rheological principles in rheometry, to increase accuracy, precision and capability, not only consistency.


Keywords

melt flow rate; melt index; volume flow rate; Acrylonitrile-butadiene-styrene (ABS); Extrusion plastometer; Flow and flow rate--thermoplastics; Fluoropolymers; Polycarbonate (PC); Polymers; Thermoplastics;

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Work Item Status:
Date Initiated:03-30-2011
Technical Contact: Paul Oconnell

Status: Draft Under Development

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