ISO 17994:2014规定了一种评估程序，用于根据ISO/TR 13843对两种具有既定性能特征的方法进行比较，并对相同的目标群体或微生物种类进行量化。 它为根据所选比较标准评估两种定量方法的平均相对性能提供了数学基础。它没有提供评估所比较方法精确度的数据。将方法的精度作为其性能表征的一部分进行评估是合适的。 ISO 17994:2014未提供在单个实验室中验证方法性能特征的方法。

ISO 17994:2014 specifies an evaluation procedure for comparing two methods with established performance characteristics according to ISO/TR 13843 and intended for the quantification of the same target group or species of microorganisms. It provides the mathematical basis for the evaluation of the average relative performance of two quantitative methods against chosen criteria for the comparison. It does not provide data for assessment of the precision of the methods being compared. It is appropriate that the precision of methods is assessed as part of their performance characterization. ISO 17994:2014 does not provide methods for the verification of method performance characterization in a single laboratory.