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Certification of Standard Reference Material 1474a, A Polyethylene Resin



J R. Maurey, Kathleen M. Flynn, Charles M. Guttman


The melt flow rate of Standard Reference Material (SRM) 1474a, a linear polyethylene (narrow MWD ethylene-hexene copolymer) resin, was determined to be 5.10 g/10 min at 190 OC under a load of 2.16 kg using the ASTM Method D 1238-00. The average results from 45 determinations on samples with a standard deviation of 0.056 g/10 min. The overall expanded uncertainty, including type A and type B uncertainties, is estimated as 0.42 g/10 min.
Special Publication (NIST SP) - 260-148
Report Number


melt flow standard, melt index standard, polyethylene, SRM, Standard Reference Material


Maurey, J. , Flynn, K. and Guttman, C. (2003), Certification of Standard Reference Material 1474a, A Polyethylene Resin, Special Publication (NIST SP), National Institute of Standards and Technology, Gaithersburg, MD, [online], (Accessed June 17, 2024)


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Created November 14, 2003, Updated November 10, 2018