前言中国即将加入世界贸易组织 ,国际贸易、技术合作、技术交流活动必将日益增多。在有关的业务技术活动中 ,涉及无损检测的内容也将日趋频繁。无损检测人员的资格鉴定与认证以及与国际上工业发达国家的证书互认是急需建立的工作项目之一。近 2 0年来 ,中国机械工程学会无损检 Foreword China is about to join the World Trade Organization. International trade, technical cooperation and technology exchange activities are bound to increase. Content related to non-destructive testing will also become more frequent in the relevant business technical activities. Non-destructive testing of personnel qualification and certification as well as the international industrialized countries and the mutual recognition of certificates is an urgent need to establish one of the work items. In the past 20 years, China Mechanical Engineering Society nondestructive inspection