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Standard Test Method for Sensory Analysis—Tetrad Test
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NORM herausgegeben am 1.4.2023
Bezeichnung normen: ASTM E3009-23
Anmerkung: UNGÜLTIG
Ausgabedatum normen: 1.4.2023
SKU: NS-1143494
Zahl der Seiten: 14
Gewicht ca.: 42 g (0.09 Pfund)
Land: Amerikanische technische Norm
Kategorie: Technische Normen ASTM
Keywords:
difference testing, discrimination test, sensory analysis, similarity testing, tetrad test,, ICS Number Code 67.240 (Sensory analysis)
Significance and Use | ||||||||||||||||
5.1?The test method is effective for the following test objectives: 5.1.1?To determine whether a perceptible difference results or a perceptible difference does not result, for example, when a change is made in ingredients, processing, packaging, handling, or storage; or 5.1.2?To select, train, and monitor assessors. 5.2?The test method itself does not change whether the purpose of the test is to determine that the products are perceptibly different versus that the products are sufficiently similar to be used interchangeably. Only the selected values of ?, ?, and ? or 5.3?The tetrad method involves the evaluation of four samples. When the products being tested cause excessive sensory fatigue, carryover, or adaptation, methods that involve the evaluation of fewer samples (same-different, triangle test, etc.) may be preferred. |
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1. Scope | ||||||||||||||||
1.1?This test method covers a procedure for determining whether a perceptible sensory difference exists between samples of two products or to estimate the magnitude of the perceptible difference. 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. The attribute(s) responsible for the difference are not identified. 1.4?The tetrad test is more efficient statistically than the triangle test (Test Method E1885) or the duo-trio test (Test Method E2610). 1.5?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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.6?This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. |
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2. Referenced Documents | ||||||||||||||||
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