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GB/T 12310-2012 sensory analysis method—paired comparison test

Standard Number:  GB/T 12310-2012
Title:  sensory analysis method—paired comparison test
Language:  Simplified Chinese
Replacing Standard:  GB/T 12310-1990

Publication Date:  2012/6/29
Execute Date:  2012/11/1
Adopted International Standard:  ISO 5495-2005/CD Amd 1 ,
Status:  Current
International Classification for Standards (ICS)FOOD TECHNOLOGY>>Sensory analysis
Publisher:  Chinese Standards(GB)
Number of Pages:24  

Description:This standard stimulates the determine the intensity of sensory characteristics between two sample of the product whether there is can feel the difference of sensory or similar programs.
note: this inspection sometimes referred to as the directional difference or AFC inspection of 2 - (choose a forced choice test). Paired comparison test in essence is a choice forced choice test. Because involves only two products, paired comparison test is the most simple classification of existing test.
this standard applies to a single or a few sensory characteristics Feature exist difference, refers to a known characteristics it can determine whether there is a sense difference and appraisal scope of difference, but it cannot give instructions on different degree. No characteristic difference on the evaluation of the said there is no difference between two products.
this standard applies only to relatively uniform homogeneous products.
this standard applies to the following situation: sure

A) --, whether there is any difference (paired difference test);
- if there is no feeling difference (similar test in pairs), for example, when the ingredients, improve process, packing, handling or storage.
B) selection, training and testing evaluation member
implementation should know before inspection, inspection is a unilateral (inspection supervisor in advance know difference range, and within the scope of the alternative hypothesis is equivalent to the expected difference exist) or bilateral inspection (inspection supervisor in advance don't know the difference in scope, and alternative false Set equal to the difference within the scope of one or another.
pairs inspection applies to compare two products according to the preference. Paired test different case as shown in figure B. 1.  
Catalog: Ⅰ
1 1
2 1
3 1
4 2
5 3
6 3
7 4
8 4
9 5
10 5
A 6
B 13
File Format:  PDF(Acrobat Reader) or Word version doc Document
File Size:  849KB
Tile in English:  sensory analysis method—paired comparison test

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