Automatic sprinkler system - part 2 : wet system alarm valves retard chamber water motor alarm 自动喷水灭火系统第2部分:湿式报警阀延迟器水力警铃
4.
Fixed firefighting systems - components for sprinkler and water spray systems - water motor alarms 固定灭火系统.喷洒器和喷水系统用元部件.水动机警报器
5.
Fixed firefighting systems - components for sprinkler and water spray systems - part 4 : water motor alarms 固定式灭火系统.洒水器和喷水系统用元件.第4部分:水动报警器
6.
Fixed firefighting systems - components for sprinkler and water spray systems - part 4 : water motor alarms includes amendment a1 : 2001 ; german version en 12259 - 4 : 2000 a1 : 2001 固定灭火系统.喷头和喷水系统元部件.第4部分:水车报