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Description of ASTM-E1909 2024ASTM E1909-24Active Standard: Standard Guide for Time-Intensity Evaluation of Sensory AttributesASTM E1909Scope 1.1 This guide covers procedures for conducting and analyzing time-intensity (TI) evaluations of products or other sensory stimuli. Time-intensity is the measurement of the intensity of a single sensory sensation over time in response to a single exposure to a product or other sensory stimulus. Simultaneous evaluations of multiple sensory attributes are possible, although are outside of the scope of this document. See Reference List for more information. 1.2 This guide utilizes a specially trained panel to measure the intensity of a single continuous sensation during the time from initial exposure: 1.2.1 To its extinction, 1.2.2 To a specified intensity, or 1.2.3 To a predetermined limit of time. 1.3 Applications not covered in this guide include measuring: 1.3.1 Multiple sensations, 1.3.2 Multiple exposures within a single measurement, and 1.3.3 Qualitative or hedonic changes in the perceived sensation. 1.4 This guide includes protocols for the selection and training of judges, descriptions and use of physical data collection devices, and methods of data handling, summarization, and statistical analysis. An example, with data handling and analysis approaches, is included in the appendix. 1.5 This guide is not applicable to measure product shelf life or stability. 1.6 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. 1.7 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. Keywords ICS Code ICS Number Code 67.240 (Sensory analysis) DOI: 10.1520/E1909-24 The following editions for this book are also available...This 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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