DIN EN ISO 9073-18:2024-11

This document specifies a test method for the determination of the breaking force of nonwovens using a grab method in conditioned or wet state. This test method is not applicable to materials which have a high percentage of stretch. Comparing test results from tensile testing machines operating on different principles is not applicable. This document specifies methods using constant rate of specimen extension (CRE) tensile testers. Constant-rate-of-loading (CRL) instruments is covered, for information, in ISO 2062:2009, Annex A, in recognition of the fact that these instruments are still in use and can be used by agreement. The main changes to the previous document include the inclusion of further terms in Clause 3, the revision of the document content, the inclusion of new clauses on sampling; pre-treatment; the production of test samples; the preparation, calibration and verification of test equipment; the reporting of results and on precision and systematic deviation. The responsible national standardization committee is Working Committee NA 106-02-10 AA "Spulerei, Spinnereimaschinen und Nonwoven; SpA zu ISO/TC 72/SC 1, ISO/TC 72/SC 3 und ISO/TC 38/WG 9" ("Spinning and winding machinery and nonwoven; German mirror Committee of ISO/TC 72/SC 1, ISO/TC 72/SC 3 and ISO/TC 38/WG 9)") at DIN Standards Committee Textiles and Textile Machinery (Textilnorm).