标准信封是推行邮政编码制度不可缺少的组成部分,是信函规格标准化和实现信函分拣机械化的重要前提。为了配合邮政编码制度的推行和为信函分拣机械化创造条件,国家标准局于1987年4月13日颁布了信封国家标准(GB1416-87),并从同年11月1日起执行。1988年陕西省技术监督局、省轻工业厅、省商业厅、省邮电管理局等 Standard envelope is an integral part of the implementation of the zip code system is an important prerequisite for the standardization of letter format and the mechanization of letter sorting. In line with the implementation of the postal code system and create conditions for the mechanization of letter sorting, the National Bureau of Standards promulgated the envelope national standard (GB1416-87) on April 13, 1987 and implemented it on November 1 of the same year. 1988 Shaanxi Provincial Bureau of Technical Supervision, Provincial Light Industry Department, the Provincial Department of Commerce, the provincial post office and so on