T/GDTEX 11-2020 Nosepiece elastic band
T/GDTEX 11-2020 Nosepiece elastic band
Basic Information
Scope
Scope: This standard specifies the technical requirements, test methods, inspection rules, marking, packaging, transportation, and storage for elastic straps of masks. This standard applies to elastic straps made by weaving, knitting, and braiding processes, which contain elastic fibers and other components and are used to connect and fix the main body of masks to the human ear and head. This standard does not apply to elastic straps for masks made from rubber materials. Main technical content: 1. Scope: This standard specifies the technical requirements, test methods, inspection rules, marking, packaging, transportation, and storage for elastic ear straps of masks. This standard applies to elastic webbing made by weaving, knitting, and braiding processes, which contain spandex and natural or chemical fibers and are used to connect and fix the main body of masks to the human ear and head. This standard does not apply to elastic ear straps made from rubber materials. 2. Normative references 3. Terms and definitions Ratio of elongation: The ratio of the length of 10cm under no tension to the length after being stretched to its limit. 4. Product specifications 5. Technical requirements 5.1 Basic requirements, 5.2 Grading provisions, 5.3 Internal quality, 5.4 Appearance quality. 6. Test methods 6.1 Internal quality inspection, 6.2 Appearance quality inspection. 7. Inspection rules 8. Packaging and transportation 8.1 Packaging, 8.2 Storage and transportation