When disconnecting cylinders with diaphragm valves, it is most important to double close the valve and to properly install the outlet seal. Failure to use this procedure can result in release of the product into the environment.

• 当切断钢瓶和隔膜阀的连接时，两次关闭阀门和正确安装排气口密封是最重要的。不采用这个程序会导致产品泄漏入环境。