Filling a typical fuel tank of 75 litres-about 20 American gallons-with hydrogen at room temperature and pressure will take a hydrogen-powered car only about a kilometre or so.
If the loading platform is feeding material stop feeding immediately. shut off nitrogen valve and release pressure of tankcar.
若装车平台正在压料，应马上停止压料，关闭氮气阀门，对槽车进行泄压。
3
Unloading method of injecting nitrogen to tankcar to raise pressure and liquid extraction with centrifugal pump simultaneously is often used to unload butadiene tankcar.