ASTM-E2610:2008 Edition

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E2610-08 Standard Test Method for Sensory Analysis—Duo-Trio Test

Published By	Publication Date	Number of Pages
ASTM	2008	8

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Category: ASTM

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Description

ASTM E2610-08

Historical Standard: Standard Test Method for Sensory Analysis—Duo-Trio Test

ASTM E2610

Scope

1.1 This test method covers a procedure for determining whether a perceptible sensory difference exists between samples of two products.

1.2 This test method applies whether a difference may exist in a single sensory attribute or in several.

1.3 This test method is applicable when the nature of the difference between the samples is unknown. It does not determine the size or the direction of the difference. The attribute(s) responsible for the difference are not identified.

1.4 Compared to the triangle test, the duo-trio test is statistically less efficient, but easier to perform by the assessors. For details on how the duo-trio test compares to other three-sample tests, see Refs (1-4).

1.5 This test method is applicable only if the products are homogeneous. If two samples of the same product can often be distinguished, then another method, for example, descriptive analysis, may be more appropriate.

1.6 This test method is applicable only when the products do not cause excessive sensory fatigue, carryover or adaptation.

1.7 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Keywords

difference testing; discrimination test; duo-trio test; sensory analysis; similarity testing

ICS Code

ICS Number Code 67.240 (Sensory analysis)

DOI: 10.1520/E2610-08

PDF Catalog

PDF Pages	PDF Title
1	Scope Referenced Documents Terminology Summary of Test Method
2	Significance and Use Apparatus Assessors Number of Assessors
3	Procedure Analysis and Interpretation of Results Report
4	Precision and Bias Keywords A1. NUMBER OF ASSESSORS AND CORRECT RESPONSES NEEDED FOR A DUO-TRIO TEST TABLE A1.1
5	X1. DUO-TRIO TEST TO CONFIRM THAT A DIFFERENCE EXISTS: FRAGRANCE FOR FACIAL TISSUE BOXES X1.1 Background X1.2 Test Objective X1.3 Number of Assessors X1.4 Conducting the Test TABLE A1.2
6	X1.5 Analysis and Interpretation of Results X1.6 Report and Conclusions FIG. X1.1
7	X2. DUO-TRIO TEST WITH BALANCED RISKS: NEW CAN LINER X2.1 Background X2.2 Test Objective X2.3 Number of Assessors X2.4 Conducting the Test X2.5 Analysis and Interpretation of Results X3. CONFIDENCE INTERVALS FOR DUO-TRIO TESTS X3.1 Background X3.2 Analysis and Interpretation of Results
8	REFERENCES