GAS CYLINDER SAFETY 1. INTRODUCTION（气瓶安全1。）.pdfVIP

GAS CYLINDER SAFETY ______________________________________________________________ Contents 1. INTRODUCTION 2. GRADES OF GASES 3. PRESSURES 4. TYPES OF REGULATORS 5. CYLINDER TRANSPORT 6. STORAGE 7. KEEPING THE SYSTEM SAFE 8. PROBLEM REGULATORS OR ATTACHMENTS 9. FURTHER INFORMATION 10. FIRE __________________________________________________________________________ _________ 1. INTRODUCTION In general using gas cylinders is safe. There is however the potential for a serious accident if the gas cylinder or the attachments are not treated properly. In the near future the pressure in many non-medical gas cylinders supplied by BOC is scheduled to increase. This has already happened for industrial grade O2 and for some other gases. 2. GRADES OF GASES BOC have divided the gases that they supply into 3 grades. Medical A pure grade of gas to be used for medical purposes. These gases are normally stored at 137 bar. Industrial This grade of gas is normally used in laboratories and workshops. Most gas cylinders at present charged at 175 bar. The pressure is scheduled to increase to 230 bar in the next few years. This has already occurred for oxygen. Special Gases These cylinders contain mixtures of gases or innert gases. Pressure range between 175 bar and 230 bar. 3. PRESSURES CONVERSION BAR KPa PSI 1 100 14.5 137 13700 1972 200 20000 2900 230 23000 333