关于国内外大容积钢质无缝气瓶标准的对比分析

Comparative Analysis on the Chinese and Foreign Standards of Large Capacity Seamless Steel Gas Cylinders

美国的DOT规范(3AAX、3T和特殊许可SP8009)、国际标准ISO 11120,以及新颁布的中国国家标准GB/T 33145是三个重要的大容积钢质无缝气瓶的标准,分别代表了美国、欧洲、中国大容积钢质无缝气瓶的设计理念以及对气瓶制造、检验的要求。对三个标准在适用范围、材料、设计、检验和试验、安全泄放装置等方面做了对比分析,阐述了它们之间的相互联系和异同点,介绍了大容积气瓶标准的最新进展。对国标GB/T 33145中值得商榷的两个问题进行了讨论。

The three well known standards of large capacity seamless steel gas cylinders are DOT Code(3 AAX,3 T and Special Permission 8009),ISO 11120 and the recently published national standard GB/T 33145,which represent the design theory and requirements of manufacture and inspection of USA,Europe and China.Comparative analysis is made among these standards on the aspects of scope,authorized steel,design,inspection and test,safety relief device,so as to illustrate the correlations and differences between them as well as the latest development.Discussion is also made on two points of the national standard GB/T 33145.