中国实验室国家认可委员会金属专业能力验证工作组 ,是在中国实验室国家认可委员会能力验证部的直接管理和监督下 ,负责开展有关金属分析测试领域中能力验证计划的具体执行机构。工作组自 1999年 3月成立以来 ,已成功地开展了 9项能力验证计划 ,它们涉及了金属专业的钢铁、有色 The China National Laboratory Accreditation Committee for Metallic Professional Proficiency Testing is responsible for conducting the concrete implementation of the proficiency testing program in the field of metal analysis and testing under the direct management and supervision of the proficiency testing department of the National Accreditation Board of China National Laboratory. Since its establishment in March 1999, the Working Group has successfully conducted 9 proficiency testing programs covering the metal-specialized steel, tinted