ASTM E 3337 : 2025

1.1This practice covers procedures for measurement of time-related (temporal) sensory perceptions of multiple attributes and events or exposures of products or other sensory stimuli.

1.2The selection of an appropriate method will depend on the determination of the temporal parameters being studied. Requirements, strengths, and limitations for each method are explained, and the rationale for selection of a specific method is provided. Specific methods discussed in this practice include:

1.3Training and orientation of assessors are required to ensure meaningful results will be obtained. Data collection shall accommodate a wide range of conditions and temporal rates.

1.4Statistical analysis and treatment of the data obtained from using these methods are provided and, where appropriate, alternative analyses and treatments are clearly discussed.

1.5Strategies for communicating temporal information about products to stakeholders are provided.

1.6This practice does not cover the time-intensity evaluation of sensory attributes addressed in Guide E1909 for assessing a single sensory sensation over time. This practice is not applicable to measure product shelf life or stability that require evaluations over extended time.

1.7Units—The values stated in SI units are to be regarded as the standard. No other units of measurement are included in this standard.

1.8This 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.

1.9This 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.