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IEC TR 60216-7-2:2024 is intended to validate the procedures of IEC TS 60216­7­1 in providing a similar temperature index to conventional methods used in other parts of the IEC 60216 series. The round robin test results do not provide statistical analysis for precision. The round robin test focuses on preliminary studies to understand the evaluation and calculation procedures, influence on apparatus, and data variance among laboratories before determination of precision. This second edition cancels and replaces the first edition published in 2016. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) Annex A (informative) has been added to provide a round robin test with a different polymer type - polybuthylene terephthalate (PBY) - as an additional use case of the method in accordance with IEC TS 60216-7-1;
b) Tables 3 to 11 have been corrected by adding units, and texts have been refined for more technical clarifications of the procedures and observations.