1996年底，国家技术监督局印发了《关于我国国家标准、行业标准和地方标准采用“国际标准分类法”进行分类的通知》，规定自1997年1月1日起，我国的国家标准、行业标准和地方标准均采用ICS分类法（国际标准分类法），不再使用UDC分类法及中国标准分类法，以实现我国标准文献分 At the end of 1996, the State Bureau of Technical Supervision issued the Circular on the Classification of China’s National Standards, Industry Standards and Local Standards adopting the International Standard Classification, stipulating that since January 1, 1997, China’s national standards, industry standards And local standards are using ICS classification (International Standard Classification), no longer use the UDC classification and Chinese standard classification, in order to achieve our standard document