ISO 16820-2004 感官分析.方法学.顺序分析

标准号：ISO 16820-2004
中文标准名称：感官分析.方法学.顺序分析
英文标准名称：Sensory analysis - Methodology - Sequential analysis
标准类型：X04
发布日期：1999/12/31 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：X04
国际标准分类号：67.240
适用范围：This International Standard describes 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 a perceptible difference results, or — a perceptible difference does not result when, for example, a change is made in ingredients, processing, packaging, handling or storage; b) or for selecting, training and monitoring assessors.