T/XTFZZ 004-2021 The elastic earloop for a mask
T/XTFZZ 004-2021 The elastic earloop for a mask
Basic Information
Scope
Scope: This standard specifies the terms and definitions, product classification, technical requirements, grading provisions, test methods, inspection rules, packaging, marking, transportation, and storage of elastic earbands for masks (hereinafter referred to as mask straps). This standard applies to elastic earbands for masks made primarily from chemical fibers such as polyester, nylon, and spandex, which are manufactured by weaving machines and can be connected to the mask body by welding or other processes to secure the mask on the head and face. Main technical content: This standard specifies the terms and definitions, product classification, technical requirements, grading provisions, test methods, inspection rules, packaging, marking, transportation, and storage of elastic earbands for masks.