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砝码质量稳定性是砝码的一项重要技术指标,对质量量值传递具有决定性意义。根据各省市计量部门提供的历年砝码检定数据和调查可知,在检定周期内,正常使用的一、二、三等砝码的质量稳定性不存在问题,而户外使用的四等大砝码却确实有质量超差的现象。分析其原因大致有以下几点:①旧砝码调整腔(在上表面)不密封,受雨淋后,砝码
Weight quality stability is an important weight of the technical indicators, the transfer of quality is of decisive significance. According to provincial and municipal measurement departments to provide the calendar year weight verification data and survey shows that in the test cycle, the normal use of one, two, three weight quality stability does not exist, while the outdoor use of four large weight but There are indeed phenomena of poor quality. Analysis of the reasons for the following general points: ① old weight adjustment chamber (on the surface) is not sealed by the rain, the weight