现行 JJF 1287-1990
直流电流(1A)基准操作技术规范 直流电流(1A)基准操作技术规范 Operating Technical Norm For Primary Standard of Direct Current(IA)
发布日期:
实施日期:
分类信息
发布单位或类别: 中国 国家计量技术规范
CCS分类: A55综合 - 计量 - 电磁计量
ICS分类:
标准简介

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最后更新时间 2025-08-28