BOS ISO 21925-1:2018 Fire resistance tests — Fire dampers for air distribution systems

BOS ISO 21925-1:2018 Fire resistance tests — Fire dampers for air distribution systems — Part 1: Mechanical dampers

来源：epingalert 发布时间：2022-04-21 浏览量：*

通告成员：

Botswana

通告类型：

TBT

通告发布时间：

2022-04-21

评议截止时间：

2022-06-19

通告描述：

This document specifies a test method for the determination of the resistance of fire dampers to heat, and for the evaluation of their ability to prevent fire and smoke spreading from one fire compartment to another through an air distribution system.

It is applicable to mechanical fire dampers. It is not intended to be used for dampers used only in smoke control systems, for testing fire protection devices which only deal with air transfer applications, or for dampers used in suspended ceilings, as the installation of the damper and duct can have an adverse effect on the performance of the suspended ceiling, requiring other methods of evaluation.

NOTE "Air transfer" is a low-pressure application through a fire separation door (or wall, floor) without any connection to an air duct.

文档编号：

G/TBT/N/BWA/134

查看文档：

原文文档翻译文档

ICS Code：

13.220.50 - Fire-resistance of building materials and elements

通告目的：

National security requirements (TBT)
Prevention of deceptive practices and consumer protection (TBT)
Protection of human health or safety (TBT)
Protection of animal or plant life or health (TBT)
Protection of the environment (TBT)

BOS ISO 21925-1:2018 Fire resistance tests — Fire dampers for air distribution systems — Part 1: Mechanical dampers

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