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GB/T 41408-2022Sensory analysis - Methodology - General guidance for conducting hedonic tests with consumers in a controlled area (English PDF)

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Issued by

State Administration for Market Regulation, China National Standardization Administration

Level / Type

National · Recommended

Issue date

April 15, 2022

Implementation date

April 15, 2022

Scope

GB/T 41408-2022 (Sensory analysis - Methodology - General guidance for conducting hedonic tests with consumers in a controlled area) is available as an English-translated PDF.

GB/T 41408-2022 is the Chinese standard "Sensory analysis - Methodology - General guidance for conducting hedonic tests with consumers in a controlled area". Its scope clause reads: This document presents methods for measuring consumer preference or relative preference for a product within a controlled area.

The method is based on asking Consumer data collection and analysis methods for questionnaires (including paper and electronic questionnaires). This document does not apply to tests related to consumption behavior, such as recording the quantity of products freely consumed by consumers.

The liking testing methods (including acceptability testing and preference testing) in this document can be applied to. ---Comparing product preferences with competing products; ---Optimize products in order to obtain higher preference levels or more consumer favorites; --- Determine the product series suitable for a specific target consumer group; --- Determine the best consumption period of the product; --- assess the impact of formulation changes on product preferences; --- Study the influence of sensory characteristics of products (non-external characteristics, such as brand, price, advertisement, etc.) on the degree of product preference; --- Study the influence of commercial behavior or display form (such as packaging) on the degree of product preference; --- Determine whether there is a perceptible difference in preference between different products (test of difference in preference degree) or there is no perceptible difference in preference (increase check for similarity). Its clauses include terms and definitions.

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Document preview — GB/T 41408-2022

National Standard of the People's Republic of China

Classification: X 04

Issued by: State Administration for Market Regulation, China National Standardization Administration

Preface
1 Scope
2 Normative references
3 Terms and Definitions
4 Preparations before the test
4.1 Experimental scheme
4.2 Basis for target group determination
4.3 Other
5 Consumer Sample
5.1 General
5.2 Consumer recruitment
5.3 Consumer Sample Construction
5.4 Consumer Sample Segmentation
6 Consumer sample size
6.1 Measurement accuracy
6.2 Determination of sample size
6.3 Consumer Subgroup Usage
6.4 Number of products to be tested and experimental design
6.5 Safety Limits on Recruitment
7 Test area
8 products
8.1 Product Blind Evaluation
8.2 Product Preparation and Delivery
9 Program
9.1 Preference test classification
9.2 Rating method
9.3 Pairwise preference method
9.4 Sorting method
9.5 Other
9.6 Tips for consumers
10 Test
10.1 General
10.2 Experimental Design
10.3 Number of products tested in a single round
10.4 Properties of products in the same round of testing
10.5 Time to test
10.6 Number of Product Retests
10.7 Pre-experiments
11 Results Analysis
11.1 General
11.2 Inferential Analysis
11.3 Rating method (see 9.2)
11.4 Pairwise preference method (see 9.3)
11.5 Sorting (see 9.4)
12 Test report
12.1 General
12.2 Products
12.3 Test procedure
12.4 Consumers
12.5 Test Results
12.6 Annex
Appendix A (Informative) Example Recruitment Questionnaire
Appendix B (Informative) Consumer Subgroup Segmentation Data Evaluation Method
Appendix C (Informative) Impact of Sample Size on Results Precision
Appendix D (Informative) Minimum Sample Size for Rating Method
Appendix E (Informative) Product Offering Plan
Appendix F (Informative) Examples of Rating Method Data Analysis
Appendix G (Informative) Chinese Semantic Likelihood Scale

1 Scope

This document presents methods for measuring consumer preference or relative preference for a product within a controlled area. The method is based on asking

Consumer data collection and analysis methods for questionnaires (including paper and electronic questionnaires).

This document does not apply to tests related to consumption behavior, such as recording the quantity of products freely consumed by consumers.

The liking testing methods (including acceptability testing and preference testing) in this document can be applied to.

---Comparing product preferences with competing products;

---Optimize products in order to obtain higher preference levels or more consumer favorites;

--- Determine the product series suitable for a specific target consumer group;

--- Determine the best consumption period of the product;

--- assess the impact of formulation changes on product preferences;

--- Study the influence of sensory characteristics of products (non-external characteristics, such as brand, price, advertisement, etc.) on the degree of product preference;

--- Study the influence of commercial behavior or display form (such as packaging) on the degree of product preference;

--- Determine whether there is a perceptible difference in preference between different products (test of difference in preference degree) or there is no perceptible difference in preference (increase check for similarity).

2 Normative references

The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, dated citations documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to this document.

GB/T 10221-2021 Sensory Analysis Terminology (ISO 5492.2008, IDT)

GB/T 12315-2008 Sensory Analysis Methodology Ranking Method (ISO 8587.2006, IDT)

GB/T 13868-2009 Sensory Analysis General Guidelines for Establishing Sensory Analysis Laboratories (ISO 8589.2007, IDT)

GB/T 39501-2020 Guidelines for the use of quantitative response scales for sensory analysis (ISO 4121.2003, IDT)

GB/T 39992-2021 Sensory Analysis Methodological Balance Incomplete Block Design (ISO 29842.2011, IDT)

3 Terms and Definitions

The terms and definitions defined in GB/T 10221-2021 and the following apply to this document.

3.1 controlled area

An area that provides the following functions.

--- controllable areas for preparing and delivering products;

--- a comfortable environment for consumers to test products and receive questions;

---Avoid verbal and non-verbal communication between consumers and ensure that each consumer has an independent feedback area.

[Source. GB/T 10221-2021, 6.56, with modifications]

GB/T 46804 | GB 31650.1 | GB/T 37517 | GB/T 15091.1 | GB/T 12766 | […]

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 66 pages — is available in the English PDF.

Referenced standards

Normative references

ISO 5492.2008 · ISO 8587.2006 · ISO 8589.2007 · ISO 4121.2003 · ISO 29842.2011

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