一、标准砝码的选择JJF1326-2011《质量比较仪校准规范》中,砝码准确度等级与比较仪实际分读数直接相关,实际分读数的表达式为Max i/d i,其中:i=1,2,3,……,n。表达式的意义为:每个局部衡量范围的最大载荷与相应的实际分度值的比。具体如表1所示。表1砝码准确度等级与比较仪实际分读数关系表 First, the choice of standard weights JJF1326-2011 “quality comparator calibration specification”, the weight accuracy level and the comparator is directly related to the actual readings, the actual sub-reading expression Max i / di, where: i = 1 , 2,3, ......, n. The meaning of the expression is: The ratio of the maximum load of each local measurement range to the corresponding actual division value. Specific as shown in Table 1. Table 1 weight accuracy grade and comparator actual sub-reading relationship table