Automatic sprinkler system - part 2 : wet system alarm valves retard chamber water motor alarm 自動噴水滅火系統(tǒng)第2部分:濕式報警閥延遲器水力警鈴
Fixed firefighting systems - components for sprinkler and water spray systems - water motor alarms 固定滅火系統(tǒng).噴灑器和噴水系統(tǒng)用元部件.水動機(jī)警報器
Fixed firefighting systems - components for sprinkler and water spray systems - part 4 : water motor alarms 固定式滅火系統(tǒng).灑水器和噴水系統(tǒng)用元件.第4部分:水動報警器
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 固定滅火系統(tǒng).噴頭和噴水系統(tǒng)元部件.第4部分:水車報