前言 ISO(国际标准化组织)是各国标准化机构(ISO成员组织)的国际性联合组织。国际标准的发展工作由ISO技术委员会进行。各成员组织对技术委员会提出的课题感兴趣的话,有权在该委员会上陈述意见。国际组织,政府的或非政府的,经与ISO组织联系,也参与这项工作。国际标准草案经技术委员会通过后,在 Preface ISO (International Organization for Standardization) is an international joint organization of national standards bodies (ISO member organizations). The development of international standards is carried out by ISO technical committees. All member organizations are entitled to state their opinions on this committee if they are interested in the topics raised by the technical committee. International organizations, government or non-government, are also involved in this work through contact with ISO organizations. After the draft international standard was approved by the technical committee,