Work Item
ASTM WK98045

Revision of D8059-19(2022) Standard Test Method for Rubber Compounds—Measurement of Unvulcanized Dynamic Strain Softening (Payne Effect) Using Sealed Cavity Rotorless Shear Rheometers

Rationale

Only RPA Instruments were included in the calculation of this precision statement that were equipped with special software with advanced, but straight ward data treatment of the force transducer output in the time domain using moving averages in real-time. Ref: RCT, L. Hilliou, D. van Dusschoten,N, M. Wilhelm (Max-Planck Institute), H. Burhin, E. R. Rodger (Alpha Technologies), March 1, 2004. Also referencing ASTM D6600 has more information about statistical test sensitivity which might be useful to the reader.
D8059 P&B Evaluation Parameters
Carbon black only; no silica
Only Labs with EDR = 5 labs = Alpha instruments
Three properties: G’, G”, and tan delta
Use just the first 4 replicates
Sweeps: use 1st, last, and 3 between about equally spaced. (Note to not use 1st data points?)

Details

Developed by Subcommittee: D11.12

Committee: D11

Staff Manager: Melissa Marcinowski

Work Item Status

Date Initiated: 02-06-2026

Technical Contact: John Dick

Item: 001

Ballot: D11.12 (26-02)

Status: In Balloting