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Fire resistance tests. Fire dampers for air distribution systems. Mechanical dampers.

Fire resistance tests — Fire dampers for air distribution systems — Part 2: Intumescent dampers

Overview - ISO 21925-2:2021 (Intumescent dampers) ISO 21925-2:2021 specifies a standardized fire resistance test method for intumescent fire dampers used in ducted air distribution systems. The stand…

Fire resistance tests — Fire dampers for air distribution systems — Part 1: Mechanical dampers

Overview ISO 21925-1:2018 - Fire resistance tests - Fire dampers for air distribution systems - Part 1: Mechanical dampers - defines a standardized test method to determine how mechanical fire damper…