Research Report Approved: May 01, 2023
RR:D20-2007

D4878-Test Method for Polyurethane Raw Materials: Determination of Viscosity of Polyols

The precision of this test method is based on an interlaboratory study of ASTM D4878, Test Methods for Polyurethane Raw Materials: Determination of Viscosity of Polyols - Method B, conducted in 2022. Five volunteer laboratories were asked to test four different materials. Every “test result” represents an individual determination, and all participants were instructed to report two replicate test results for each material. Practice E691 was followed for the design of study and analysis of the data; the details are given in ASTM Research Report No. D20-2007.
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Details
Developed by Subcommittee: D20.22
Stock # : RR-D20-2007
Standard: D4878