本文件定义了适用于以下各项的要求和测试: –标称压力为16巴（1.6兆帕）PN 16的集水头，用于火灾和火灾 救援服务将两个或多个入口合并成一个或多个出口；——标称压力为16巴（1.6兆帕）PN 16的分隔式烟道，用于火灾和火灾 救援服务将一个或多个入口分成两个或多个出口。购买本文件时可获得的所有当前修订均包含在购买本文件中。

This document defines requirements and tests which apply to: – collecting heads with a nominal pressure of 16 bar (1,6 MPa) PN 16 which are used by fire and rescue services to combine two or more inlets into one or more outlets;– dividing breechings with a nominal pressure of 16 bar (1,6 MPa) PN 16 which are used by fire and rescue services to divide one or more inlets into two or more outlets.All current amendments available at time of purchase are included with the purchase of this document.