方法一:秤盘上不同部位的最大显示值减去最小值(出自中国药典分析检测技术指南)
方法二:秤盘上偏心读数和中心读数之间偏差的最大值。Eccentricity usually is expressed as the largest magnitude of any of the deviations between an offcenter reading and the center reading for a given test load.(出自USP)
方法三:秤盘上不同区域的显示值和砝码真值之间偏差的最大值(出自JJG)