T/SXJP 060-2023 Big Eye Window Anti-Virus Mask

Scope

Main technical content: 3. Terms and definitions The terms and definitions defined in GB/T 12903 and the following terms and definitions apply to this document. 3.1 Large-eye window anti-gas masks These are protective gear with a clear-air design that allow the wearer to breathe independently, overcome component resistance, and protect against toxic and harmful gases or vapors, as well as particulate matter (such as toxic smoke and mist) that may harm their respiratory system or facial area. [Source: GB 2890-2022, with modifications at 3.1] 4. Requirements 4.1 Mask performance 4.3 Other technical elements 4.3.1 Field of vision of the mask a) Total field of vision: ≥70% b) Binocular field of vision: ≥56% c) Lower field of vision: ≥35° 4.3.2 Lens transmittance not less than 89% 4.4 Assembly air tightness The mask should not show continuous bubbles underwater within 30 seconds at a pressure of (1900-2300) Pa. 4.5 Other requirements

Development Information

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