1 前言 GB3199—82国家标准颁布、实施已达十余年了,十多年来随着改革开放、社会主义市场经济成分比重的增加,铝加工材在国内生产使用、销售储存、包装运输等环节发生了很大的变化;许多情况已不适应当前的形势,为此,中国有色金属工业总公司标准计量研究所以中色企字(94)0132号文件,给东北轻合金加工厂下达了修订GB3199—82的任务。 1 Foreword GB3199-82 national standards promulgated and implemented for more than ten years, more than a decade with the reform and opening up, the proportion of the socialist market economy increased, aluminum processing materials in the domestic production and use, sales and storage, packaging and transportation links Great changes have taken place; many situations have not adapted to the current situation, therefore, China Nonferrous Metals Industry Corporation Standard Metrology Institute in the color enterprises word (94) 0132 document, Northeast Light Alloy Factory issued a revised GB3199 -82 task.