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一、概况为防止居住房间内漏入煤气,人们正在谋求多种安全设施。城市煤气警报器就是防止煤气设备爆炸的仪表,当煤气发生泄漏时它能进行检测并在达到危险浓度之前发出警报。从全世界而言,家庭用煤气警报器大约在10年前已开始出售,但只限于液化石油气,当时产品性能尚不稳定。然而从1975年按新规程施行检查制度以来,产品有了改进,目前正在普及中。1980年3月前,液化石油气用户警报器的普及率约为26%(日本 LPG 联合会调查资
1. Overview In order to prevent leakage of gas into a residential room, people are seeking various safety facilities. Urban gas alarms are instruments that prevent the explosion of gas equipment. When gas leaks, it can be detected and alarmed before reaching dangerous concentrations. From around the world, home gas alarms were sold about 10 years ago, but they were limited to liquefied petroleum gas (LPG), when product performance was not yet stable. However, since the implementation of the inspection system in accordance with the new procedures in 1975, the products have been improved and are currently being popularized. Before March 1980, the penetration rate of liquefied petroleum gas (LPG) user alarms was approximately 26% (Japan LPG Federation investigator