Volume 20, Issue 6 (November 1992)
Temperature Calibration of Thermomechanical Analyzers: Part II—An Interlaboratory Test of the Calibration Procedure
An interlaboratory “round robin” test study was conducted for the calibration method developed by ASTM Task Group E37.01.12, which was described in Part I of this paper. The interlaboratory test protocol was consistent with the requirements outlined in ASTM E 691, Practice for Conducting an Interlaboratory Test Program to Determine the Precision of Test Methods. The results obtained by 10 participating laboratories were used to prepare a precision and bias statement for ASTM E 1363, Test Method for Temperature Calibration of Thermomechanical Analysers. Statistical treatment of the data yielded at the 95% confidence level a repeatability limit r = 1.43904°C, a reproducibility limit R = 4.11475°C, and a bias of 0.0137°C.