T/CNGA 58-2024 The detection and evaluation of anti-odor bacteria performance of textiles

Scope

Scope: This document specifies the method for determining the anti-odor bacterial resistance performance of textiles using the direct contact method, and provides an evaluation of the anti-odor bacterial resistance performance. This document is applicable to all types of textiles. Main technical content: 3. Terms and definitions The following terms and definitions are applicable to this document. 3.1 Odor Unpleasant odor related to people's living environment, such as toilet odor, sweat odor, body odor (2-nonenal mixture odor), and excrement odor, etc. [Source: GB/T 33610.1-2016, 3.1.1] 3.2 Odor-causing microbe A type of microbe that grows and reproduces during the wearing of textiles and can produce odor-causing volatile compounds. Note: Volatilization includes the diffusion of gases and fine particles. 3.3 Resistance to odor-causing microbe The ability of textiles to inhibit the growth and reproduction of odor-causing bacteria on the fabric. [Source: GB/T 20944.3-2008, 3.1, with modifications] 3.4 Control sample A 100% cotton fabric that is not treated and used to verify the growth conditions of experimental microbes. Note: It has been proven that the cotton standard lining fabric used in colorfastness tests is suitable as a control sample after high-temperature steaming and washing with distilled water. [Source: GB/T 20944.3-2008, 3.2] 4 Technical requirements 4.1 Safety standards 4.2 Test principle 4.3 Instruments and equipment 4.4 Culture medium and reagents 4.5 Test bacteria and bacteria storage 5 Test method 6 Sensory test evaluation method 7 Comprehensive evaluation of anti-odor bacterial resistance performance 8 Test report Appendix A (Normative Appendix) Information on test bacteria Appendix B (Normative Appendix) Requirements for sensory evaluation personnel and environmental facilities

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