一、本目录编制了截至1983年12月底以前发布的全部化学试剂国家标准和部标准目录。二、今后准备每年八月份公布一次当年发布的全部化学试剂国家标准和部标准目录。三、截止至1983年12月底,化学试剂国家标准和部标准数量及分布情况见下表: First, the catalog compiled as of December 1983 before the release of all chemical reagents national standards and ministerial standards directory. Second, the future is scheduled to be announced in August each year released a full list of chemical reagents and national standards and ministerial standards. Third, as of the end of December 1983, the number and distribution of national standards and ministerial standards of chemical reagents are shown in the following table: