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Description of ASTM-E1885 2011ASTM E1885 - 04(2011)Standard Test Method for Sensory Analysis - Triangle TestActive Standard ASTM E1885 | Developed by Subcommittee: E18.04 Book of Standards Volume: 15.08 ASTM E1885Significance and Use This test method is effective for the following test objectives: To determine whether a perceivable difference results or a perceivable difference does not result, for example, when a change is made in ingredients, processing, packaging, handling or storage; or To select, train and monitor assessors. This test method itself does not change whether the purpose of the triangle test is to determine that two products are perceivably different versus that the products are not perceivably different. Only the selected values of p d , ? , and ? change. If the objective of the test is to determine if there is a perceivable difference between two products, then the value selected for ? is typically smaller than the value selected for ? . If the objective is to determine if the two products are sufficiently similar to be used interchangeably, then the value selected for ? is typically smaller than the value selected for ? and the value of p d is selected to define sufficiently similar. 1. 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.
ISO Standard ISO 4120 Sensory Analysis - Methodology - Triangular Test Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.ASTM Standards E253 Terminology Relating to Sensory Evaluation of Materials and Products E456 Terminology Relating to Quality and Statistics E1871 Guide for Serving Protocol for Sensory Evaluation of Foods and Beverages Keywords sensory; sensory analysis; triangle test; ICS Code ICS Number Code 67.240 (Sensory analysis) DOI: 10.1520/E1885-04R11 ASTM International is a member of CrossRef. ASTM E1885This book also exists in the following packages...Subscription InformationMADCAD.com ASTM Standards subscriptions are annual and access is unlimited concurrency based (number of people that can access the subscription at any given time) from single office location. For pricing on multiple office location ASTM Standards Subscriptions, please contact us at info@madcad.com or +1 800.798.9296.
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About ASTMASTM International, formerly known as the American Society for Testing and Materials (ASTM), is a globally recognized leader in the development and delivery of international voluntary consensus standards. Today, some 12,000 ASTM standards are used around the world to improve product quality, enhance safety, facilitate market access and trade, and build consumer confidence. ASTM’s leadership in international standards development is driven by the contributions of its members: more than 30,000 of the world’s top technical experts and business professionals representing 150 countries. Working in an open and transparent process and using ASTM’s advanced electronic infrastructure, ASTM members deliver the test methods, specifications, guides, and practices that support industries and governments worldwide. |
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