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由航空航天工业部北京航空材料研究所主编、二三二厂参加制订的钢和高温合金化学分析用试样、钢和高温合金光谱分析用试样、有色金属材料化学分析用试样、有色金属材料光谱分析用试样及金属材料气体分析用试样的取样规范的5份航标审定会,于1991年3月4～8日在北京召开。来自航空系统的22个单位37名代表参加了会议。会上,与会代表逐章逐条认真、仔细地进行了审查,并提
The Aeronautic and Astronautics Ministry of Aeronautics and Astronautics Beijing Institute of Aeronautical Materials editor, two hundred twenty-two plants to participate in the formulation of the chemical analysis of steel and high temperature samples, steel and high temperature alloy spectrometry samples, non-ferrous materials, chemical analysis of samples, non-ferrous metals Materials spectral analysis of samples and metal materials sample gas sampling specifications of the five beacon review, March 4, 1991 March 8 held in Beijing. Thirty-seven representatives from 22 units of the aviation system attended the meeting. At the meeting, representatives of delegates chapter by chapter carefully, carefully conducted a review, and mention