ISO 21805:2023/Amd 1:2025 ENT_ACTIVE

关于气体灭火系统保护的围护结构完整性保障的通风口设计、选择和安装的指导与建议 修正案1

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英文名称Guidance and recommendations on design, selection and installation of vents to safeguard the structural integrity of enclosures protected by gaseous fire-extinguishing systems — Amendment 1

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