标准摘要
[中文适用范围]： 描述使用最小二乘准则将二次、三次或更高次多项式表达式拟合到一组非线性校准数据的过程，以及评估与所得校准曲线相关的不确定度的过程。 ISO 7066-1 中规定了将直线拟合到流量测量校准数据的方法。 [外文原描述]： Describes the procedures for fitting a quadratic, cubic or higher degree polynomial expression to a non-linear set of calibration data, using the least-squares criterion, and of assessing the uncertainty associated with the resulting calibration curve. The method of fitting a straight line to flow measurement calibration data is dealt with in ISO 7066-1.
英文名称Assessment of uncertainty in the calibration and use of flow measurement devices — Part 2: Non-linear calibration relationships