Standard Historical Last Updated: Dec 31, 2010
ASTM E1958-07

Standard Guide for Sensory Claim Substantiation


1.1 This guide covers reasonable practices for designing and implementing sensory tests that validate claims pertaining only to the sensory or perceptual attributes, or both, of a product. This guide was developed for use in the United States and must be adapted to the laws and regulations for advertisement claim substantiation for any other country. A claim is a statement about a product that highlights its advantages, sensory or perceptual attributes, or product changes or differences compared to other products in order to enhance its marketability. Attribute, performance, and hedonic claims, both comparative and non-comparative, are covered. This guide includes broad principles covering selecting and recruiting representative consumer samples, selecting and preparing products, constructing product rating forms, test execution, and statistical handling of data. The objective of this guide is to disseminate good sensory and consumer testing practices. Validation of claims should be made more defendable if the essence of this guide is followed.

Table of Contents
Referenced Documents2
Basis of Claim Classification4
Consumer Based Affective Testing5
Sampling Techniques5.2
Selection of Products5.3
Sampling of Products When Both Products Are Currently on the Market5.4
Handling of Products When Both Products Are Currently on the Market5.5
Sampling of Products Not Yet on the Market5.6
Sample Preparation/Test Protocol5.7
Test Design-Consumer Testing6
Data Collection Strategies6.6
Interviewing Techniques6.7
Type of Questions6.8
Questionnaire Design6.9
Instruction to Respondents6.10
Instructions to Interviewers6.11
General/Overall Questions6.12
Positioning of the Key Product Rating Questions6.13
Total Test Context and Presentation Matters6.14
Specific Attribute Questions6.15
Classification or Demographic Questions6.16
Preference Questions6.17
Test Location7
Test Execution by Way of Test Agencies-Food and Non-Food Testing8
Laboratory Testing Methods9
Types of Tests9.2
Advantages and Limitations of the Use of Trained Descriptive Panels in Claims Support Research9.3
Test Design-Laboratory Testing10
Product Procurement10.6
Experimental Design10.7
Data Collection10.8
Data Analysis10.9
Questionnaire Construction11
Test Facility12
Statistical Analysis13
Paired-Preference Studies13.1
Superiority Claims13.2
Parity Claims13.3
Paired Comparison/Difference Studies13.4
Analysis of Data from Scales13.5
Commonly Asked Questions About ASTM and Claim SubstantiationAppendix X1
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Book of Standards Volume: 14.03
Developed by Subcommittee: E18.05
Pages: 26
DOI: 10.1520/E1958-07
ICS Code: 67.240