This part of ISO 21927 specifies requirements and gives test methods for primary and secondary electrical and pneumatic power output devices, designed for use in smoke and heat control systems in buildings. NOTE A summary of functions is given in Annex
18-08-2024
40
هندسية
نظم الأمان
أجهزة
700 ج.م.
ISO: 21927-10:2011 (Confirmed in 2024)
متبناه
غير الزامى
13.220.20