BS ISO 21927-7:2017适用于市场上销售的、拟作为压差系统或排烟和排热系统的一部分运行的防烟风管段。本文件规定了拟安装在建筑物内此类系统中的防烟风管段及其相关部件（例如，测试时证明的吊架和其他项目）的要求，并参考了定义的测试方法。此外，本文件还提供了有关这些产品的安装和维护的标记和信息。 注:为避免重复，参考了各种其他标准。为此，可结合EN 1366-8、EN 1366-9和ISO 6944-1阅读本文件，了解耐火试验的详细信息，并结合EN 13501-4了解相应的分类。本文件未详细考虑大气中存在的工艺化学品可能造成的有害和/或腐蚀影响，这些化学品是有意或无意地通过系统吸入的。本文件还规定了与烟气控制管道部分一起使用的相关部件，如旋转叶片和消音器，但自然和动力排烟通风机和烟气控制挡板除外，它们由单独的标准涵盖。 本文件不包括除排烟和排热/控制系统外使用的管道。交叉引用:EN 13501-4:2016EN 1366-9:2008EN 1366-8:2004ISO 13943:2008 Ed 2 ISO 9002ISO 8015:2011 Ed 2ISO 21927-8:2017EN 15882-1:2011ISO 834-1:1999（R09）EN 1366-10:2011ISO 6944-1:2008 Ed 1ISO 1101:2017ISO 21927-2:2006 Ed 1EN 13501-3:2005+A1:2009ISO 9001:2015购买本文件时可提供的所有当前修订版均包括在购买时。

BS ISO 21927-7:2017 applies to smoke control duct sections placed on the market and intended to operate as part of a pressure differential system or smoke and heat exhaust system. This document specifies requirements and gives reference to the test methods defined for smoke control duct sections and their associated components (for example, hangers and other items proven at the time of testing), which are intended to be installed in such systems in buildings. Furthermore, marking and information on installation and maintenance of these products are also given in this document.NOTE To avoid duplication, reference is made to a variety of other standards. To this end, this document can be read in conjunction with EN 1366-8, EN 1366-9 and ISO 6944-1, for details of the fire resistance testing and EN 13501-4 for corresponding classification.This document has not considered in detail the detrimental and/or corrosive effects that may be caused by process chemicals present in the atmosphere, which are drawn through the system intentionally or inadvertently.This document also governs associated components used together with smoke control duct sections such as turning vanes and silencers, with the exception of natural and powered smoke ventilators and smoke control dampers, which are covered by separate standards.Ducts for use other than in smoke and heat exhaust/control systems are not covered by this document.Cross References:EN 13501-4:2016EN 1366-9:2008EN 1366-8:2004ISO 13943:2008 Ed 2 ISO 9002ISO 8015:2011 Ed 2ISO 21927-8:2017EN 15882-1:2011ISO 834-1:1999 (R09)EN 1366-10:2011ISO 6944-1:2008 Ed 1ISO 1101:2017ISO 21927-2:2006 Ed 1EN 13501-3:2005+A1:2009ISO 9001:2015All current amendments available at time of purchase are included with the purchase of this document.