BIPM Key Comparison Database

国际计量局关键比对数据库（KCDB）是由国际计量局（BIPM）维护的官方数据库。它依据国际计量委员会互认协议（CIPM MRA）建立，主要收录全球计量关键比对、补充比对以及各经济体发布的校准与测量能力（CMC）数据，涵盖长度、质量、时间、温度等多个计量领域。The Key Comparison Data Base (KCDB) is an official database maintained by the International Bureau of Weights and Measures (BIPM). Developed based on the Mutual Recognition Arrangement of the International Committee for Weights and Measures (CIPM MRA), it mainly collects data from global key comparisons, supplementary comparisons, and Calibration and Measurement Capabilities (CMC) published by various economic entities, covering multiple metrological fields such as length, mass, time, temperature and more.

搜集汇总

背景与挑战

背景概述

国际计量局关键比对数据库（KCDB）是依据国际计量委员会互认协议（CIPM MRA）建立的官方数据库，主要收录全球计量关键比对、补充比对以及校准与测量能力（CMC）数据。它涵盖长度、质量、时间等多个计量领域，所有数据均经过CIPM MRA审核批准。