GB/T 26749-2022《碳纤维 浸胶纱拉伸性能的测定》标准解读及精密度研究

Explanation on GB/T 26749-2022“Carbon fibre-Determination of Tensile Properties of Resin-impregnated Yarn”and Test Precision Research

对GB/T 26749-2022《碳纤维浸胶纱拉伸性能的测定》修订背景进行了说明,并对修订的主要内容包括范围、原理、试样制备和要求、试验以及数据处理进行了详细的解读,以便于标准的推广和应用。同时介绍了12k碳纤维循环比对试验情况,给出了测试方法的重复性和再现性,丰富了拉伸性能试验方法的精密度。

The background of the revision of GB/T 26749-2022“Carbon fibre-Determination of tensile properties of resin-impregnated yarn”is described.The main contents of the revision,including Scope,Principle,Sample preparation and requirements,Procedure for tensile test and expression of results,are explained in detail for the convenience of the promotion and application of the standard.At the same time,the 12K carbon fiber recirculated comparative testing is introduced,presenting the repeatability and reproducibility of the test method,and enhancing the precision of the test methods for tensile properties.