电子天平选择问题的探讨

本文主要针对选择电子天平准确度等级，采用“衡量仪器合成标准不确定度不得超过被检砝码质量最大允许误差绝对值的九分之一”来确定，容易产生问题，存在一定的风险，浅析其成因并提出了简单实用的解决方法，介绍给同行们参考。

Study on the problem of electronic balance selection

It is easy to produce and there is a certain risk that the choice of electronic balance degree of accuracy should use measuring instrument combined standard uncertainty may not exceed the maximum permissible error detected in mass of the absolute value of nine to one to determine. This paper mainly analysis of its causes and puts forward the simple and practical solving method, and introduced to the reference.