ASTM D 1238 - 04 Standard Test Method for Melt Flow Rates of Thermoplastics by Extrusion Plastometer

American Society for Testing and Materials (ASTM). Current edition approved March 1, 2004. Published April 2004. 13 p. This test method covers measurement of the rate of extrusion of molten resins through a die of a specified length and diameter under prescribed conditions of temperature, load, and piston position in the barrel as the timed measurement is being made.