This part of ISO 21927 specifies the product performance requirements, classifications and test methods for smoke barriers, which comprise the barrier itself, with or without associated activation and drive devices, designed for use in smoke and heat co
18-08-2024
42
هندسية
نظم الأمان
إرشادات
730 ج.م.
ISO 21927-1: 2008 (Confirmed in 2024)
متبناه
غير الزامى
13.220.20