DIN ISO 16820-2009 感官分析方法学.方法体系.序列分析(ISO 16820-2004)

标准号：DIN ISO 16820-2009
中文标准名称：感官分析方法学.方法体系.序列分析(ISO 16820-2004)
英文标准名称：Sensory analysis - Methodology - Sequential analysis (ISO 16820:2004)
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
引用标准：ISO 5492
适用范围：This International Standard describes a procedure for statistically analysing data from forced-choice sensorydiscrimination tests, such as the Triangle, Duo-Trio, 3-AFC, 2-AFC. in which after every trial of thediscrimination test the decision can be made to stop testing and declare a difference, to stop testing anddeclare no difference, or to continue testing.The sequential method often allows for a decision to be made after fewer trials of the discrimination test thanwould be required by conventional approaches that use predetermined numbers of assessments.The method is effective fora) 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