ASTM-E1885:2004 Edition
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E1885-04 Standard Test Method for Sensory Analysis—Triangle Test
Published By | Publication Date | Number of Pages |
ASTM | 2004 | 8 |
ASTM E1885-04
Historical Standard: Standard Test Method for Sensory Analysis—Triangle Test
ASTM E1885
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 duo-trio test, the triangle test can achieve an equivalent level of statistical significance with fewer assessors. For details on how the triangle test compares to other three-sample tests, see Refs (1), (2), (3) and (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
sensory; sensory analysis; triangle test
ICS Code
ICS Number Code 67.240 (Sensory analysis)
DOI: 10.1520/E1885-04
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 Precision and Bias Keywords |
4 | A1. NUMBER OF ASSESSORS AND CORRECT RESPONSES NEEDED FOR A TRIANGLE TEST TABLE A1.1 |
5 | X1. TRIANGLE TEST TO CONFIRM THAT A DIFFERENCE EXISTS: IMPROVED NON-ALCOHOLIC BEER X1.1 Background X1.2 Test Objective X1.3 Number of Assessors X1.4 Conducting the Test X1.5 Analysis and Interpretation of Results TABLE A1.2 |
6 | X1.6 Report and Conclusions X2. TRIANGLE TEST TO CONFIRM THAT TWO SAMPLES ARE SIMILAR CHOICE OF FOIL AND PAPER WRAPPING FOR CANDY BAR X2.1 Background X2.2 Test Objective X2.3 Number of Assessors X2.4 Conducting the Test X2.5 Analysis and Interpretation of Results FIG. X1.1 FIG. X2.1 |
7 | X3. TRIANGLE TEST THAT BALANCES THE RISKS OF DIFFERENCE AND SIMILARITY PROCESS COST REDUCTION VERSUS QUALITY CONTROL X3.1 Background X3.2 Test Objective X3.3 Number of Assessors X3.4 Analysis and Interpretation of Results X3.5 Conclusion FIG. X2.2 |
8 | X4. CONFIDENCE INTERVALS FOR TRIANGLE TESTS X4.1 Background X4.2 Analysis and Interpretation of Results REFERENCES |