重要国家标准的制订与宣贯（４９）──审查通过的二十二项新国家标准介绍本专栏刊栽的是经国家技术监督局国家标准技术审查部审查通过，但尚未正式发布的国家标准的信息。国家标准（报批稿）从技术审查通过至正式发布、出版发行，约需半年时间。急于参考有关标准资料的读... Formulation and Implementation of Important National Standards (49) ─────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── Introduction of twenty-two new national standards examined and approved This column is a national standard Information. National standards (draft for approval) from the technical review through to the official release, publishing, about six months. Eager to refer to the reading of the standard information ...