ASTM E1885-18
Standard Test Method for Sensory Analysis—Triangle Test

Standard No.

ASTM E1885-18

Release Date

2018

Published By

American Society for Testing and Materials (ASTM)

Latest

ASTM E1885-18

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).2 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.8 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.

ASTM E1885-18 Referenced Document

• ASTM E1871 Standard Practice for Serving Protocol for Sensory Evaluation of Foods and Beverages
• ASTM E2262 Standard Practice for Estimating Thurstonian Discriminal Distances*， 2020-08-01 Update
• ASTM E253 Standard Terminology Relating to Sensory Evaluation of Materials and Products*， 2023-07-15 Update
• ASTM E456 Standard Terminology for Relating to Quality and Statistics
• ISO 4120 Sensory analysis - Methodology - Triangle test*， 2021-02-28 Update

ASTM E1885-18 history

• 2018 ASTM E1885-18 Standard Test Method for Sensory Analysis—Triangle Test
• 2004 ASTM E1885-04(2011) Standard Test Method for Sensory AnalysisTriangle Test
• 2004 ASTM E1885-04 Standard Test Method for Sensory Analysis8212;Triangle Test
• 1997 ASTM E1885-97(2003) Standard Test Method for Sensory Analysis8212;Triangle Test
• 1997 ASTM E1885-97 Standard Test Method for Sensory Analysis-Triangle Test