低频电压计量保证方案（MAP）按照ISO／10012—2推荐的过程控制方法，应用统计控制方法以达到量值溯源的目的。利用“传递标准”结合统计学原理，实现主持实验室对参加实验室的闭环量传，全面考核了参加实验室包括标准器、环境、程序、操作者技能在内的综合指标。引入“核查标 Low-frequency voltage measurement assurance program (MAP) in accordance with ISO / 10012-2 recommended process control methods, the application of statistical control methods to achieve the purpose of traceability. Using the “transfer standard” combined with statistical principles, the host laboratory can achieve closed-loop quantitative analysis of participation in laboratories and comprehensively evaluate the comprehensive indexes of laboratories including standard instruments, environment, procedures, and operator skills. The introduction of "verification standard