T/CNGA 45-2022 Flexible Testing Method and Evaluation of Anti-Stab Materials

Scope

Scope: This document specifies the terms and definitions, classification, flexible testing methods, and evaluation systems for the flexibility of stab-proof materials. This document applies to various materials with stab-proof functionality. The flexibility evaluation of other stab-resistant materials and bulletproof materials can refer to this document for implementation. Note: This document only specifies the testing methods and evaluation grades for the flexibility of stab-proof materials. The evaluation scores merely reflect comfort and wearability, and are not directly proportional to protective performance. From the perspective of human safety protection, stab-proof materials also require a certain degree of hardness to resist and buffer impact forces. The flexibility grade indicators in this document are only comparable when comparing stab-proof materials that meet the same standard and protection level. Main Technical Content: 3 Terms and Definitions The following terms and definitions apply to this document. 3.1 Stab-proof materials Materials that can effectively resist stab attacks from sharp objects, such as knives and daggers, from different angles. 3.2 Flexible index score An indicator value that characterizes the flexibility grade of stab-proof materials. The higher the score, the better the flexibility, but the flexibility index score does not directly correspond to protective performance. 4 Classification According to material type, they can be divided into metal materials and non-metal materials; according to structural type, they can be divided into homogeneous structure type and non-homogeneous structure type; according to flexibility type, they can be divided into hard type, semi-hard type, and flexible type. 5 Test Principles 6 Test Methods 7 Test Report

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