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Standards Development
This document describes the methods of test using strips of fabric in straight strip form or as loops, which can be used to measure elasticity and related properties of fabrics, excluding narrow fabrics.
This scope of ISO 20932-1:2018 is unchanged.
A feedback information regarding the application of ISO 20932-1:2018, especially for the calculation of the elastic recovery was given in WG2 meeting in Treviso, Italy, on 14th October 2019. Some laboratories calculating this characteristic questioned the formula which appeared to be wrong. WG2 convenor added that the series of formula leading to the calculation of the elastic recovery should be clarified between distances, deformations, extensions, expressed in mm and their relative ration expressed in percentage. An amendment has been proposed at this meeting to solve this situation.
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