金属及合金化学成份标准试样是冶金、机械等有关部门保证产品质量,校验测试仪器,验证分析方法以及进行仲裁分析等方面不可缺少的物质。我所研制各种钢铁及有色金属合金标样有30多年历史,为国内研制和供应金属标样最早单位之一。近年来在制备工艺及标定方法方面又 Metals and alloys Chemical composition of the standard sample is the metallurgical, mechanical and other relevant departments to ensure product quality, calibration test equipment, verification analysis methods and analysis of arbitration indispensable material. I have developed a variety of steel and non-ferrous metal alloy standard samples of more than 30 years of history for the domestic development and supply of metal standard one of the earliest units. In recent years in the preparation process and calibration methods in turn