本文件规定了对来自强制选择感官辨别测试（如三角形、duo-trio、3-AFC、2-AFC）的数据进行统计分析的程序，其中在辨别测试的每次试验后，可以决定停止测试并宣布差异，停止测试并宣布无差异，或继续测试。 顺序方法通常允许在比使用预定数量的评估的常规方法所要求的更少的辨别测试试验之后做出决定。 该方法有效用于: a)确定: 结果是明显的差异；或 例如，当成分、加工、包装、处理或储存发生变化时，不会产生明显的差异； b)选择、培训和监测评估员。 N

This document specifies a procedure for statistically analysing data from forced-choice sensory discrimination tests, such as the triangle, duo-trio, 3-AFC, 2-AFC, in which after every trial of the discrimination test the decision can be made to stop testing and declare a difference, to stop testing and declare no difference, or to continue testing. The sequential method often allows for a decision to be made after fewer trials of the discrimination test than would be required by conventional approaches that use predetermined numbers of assessments. The method is effective for: a) determining that either:

1. a perceptible difference results; or
2. a perceptible difference does not result when, for example, a change is made in ingredients, processing, packaging, handling or storage;

b) selecting, training and monitoring assessors. N