Research Report RR:D20-1213

    An interlaboratory study that was conducted for the test methods in the standard specifications D5857 and D4101. This study was conducted to evaluate the effec of sample preparation on the precision of the data determined by the various testing procedures specified for the Polypropylene callouts in D4101. The study conducted for D5857 was performed to provide possible data for correlation studies and to determine if there were any significant differences in data reproducibility between the two systems.

    Published: August 2007

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    Related Standards

    D5857-14 Standard Specification for Polypropylene Injection and Extrusion Materials Using ISO Protocol and Methodology

    D4101-14 Standard Specification for Polypropylene Injection and Extrusion Materials


    Committee D20 on Plastics


    Subcommittee D20.15 on Thermoplastic Materials