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GB/T 21172-2022Sensory analysis - Guidelines for sensory assessment of the colour of products (English PDF)

感官分析产品颜色感官评价导则

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Issued by

State Administration for Market Regulation, China National Standardization Administration

Level / Type

National · Recommended

Issue date

October 12, 2022

Implementation date

May 1, 2023

Scope

GB/T 21172-2022 is the English-translated version of 感官分析产品颜色感官评价导则.

GB/T 21172-2022 is the Chinese standard "Sensory analysis - Guidelines for sensory assessment of the colour of products". Its scope clause reads: This document provides guidelines for the sensory evaluation of product color.

This document applies to solid, semi-solid, powder and liquid products that are opaque, cloudy, translucent, transparent, matte and glossy. This document presents sensory analyzes (e.g. differentials conducted by a panel of preferred assessors or in specific cases by independent experts).

Requirements for evaluation and lighting conditions in various situations in individual inspection, profile analysis and grading method. This document is not intended for consumer testing, nor for the evaluation of metamerism in the color of food products.

Note 1.See Appendix A for metamerism matching. Note 2.The sensory evaluation of the color of a specific product is in accordance with the provisions of the corresponding international documents, such as GB/T 40003-2021 [1] stipulates the evaluation requirements for wine tasting glasses. Its clauses include terms and definitions.

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Document preview — GB/T 21172-2022

National Standard of the People's Republic of China

ICS: 67.240
Classification: X 04
Replacing: GB/T 21172-2007

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

Preface
Introduction
1 Scope
2 Normative references
3 Terms and Definitions
4 Inspection conditions
4.1 General
4.2 Inspection room
4.3 Workspace
4.4 Lighting
4.5 Illumination
4.6 Illumination and viewing angles
4.7 Evaluator
5 Inspection method
5.1 Basic principles
5.2 Reference sample (standard color)
5.3 Appliances
5.4 Tested samples
5.5 Inspection step
6 Expression of results
7 Inspection Report
Appendix A (Informative) Metamerism Matching
Appendix B (informative) Evaluator observation position
Appendix C (Informative) Supplementary Information

1 Scope

This document provides guidelines for the sensory evaluation of product color.

This document applies to solid, semi-solid, powder and liquid products that are opaque, cloudy, translucent, transparent, matte and glossy.

This document presents sensory analyzes (e.g. differentials conducted by a panel of preferred assessors or in specific cases by independent experts).

Requirements for evaluation and lighting conditions in various situations in individual inspection, profile analysis and grading method.

This document is not intended for consumer testing, nor for the evaluation of metamerism in the color of food products.

Note 1.See Appendix A for metamerism matching.

Note 2.The sensory evaluation of the color of a specific product is in accordance with the provisions of the corresponding international documents, such as GB/T 40003-2021 [1] stipulates the evaluation requirements for wine tasting glasses.

2 Normative references

The contents of the following documents constitute the essential provisions of this document through normative references in the text. Among them, dated references

For documents, only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to this document.

ISO 5492 Sensory Analysis-Vocabulary

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

ISO 6658 Sensory analysis-Methodology-Generalguidance

Note. GB/T 10220-2012 General Introduction to Sensory Analysis Methodology (ISO 6658.2005, IDT)

ISO 8586 General guidelines for the selection, training and supervision of preferred and expert assessors for sensory analysis (Sensoryanal- sory assessors)

ISO 8589 Sensory analysis General guidelines for the establishment of sensory analysis laboratories (Sensoryanalysis-Generalguidancefor

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

Note. GB/T 2900.65-2004 Electrotechnical term lighting (IEC 60050-845|CIE17.1987,MOD)

3 Terms and Definitions

ISO 5492 and IEC 60050-845 | CIE17 defined and the following terms and definitions apply to this document.

3.1

Personnel involved in sensory evaluation of product color.

[Source. GB/T 10221-2021, 3.5, with modifications]

3.2 hue

The surface exhibits visual properties similar to one or a combination of the perceived colors red, yellow, green, and blue. […]

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 32 pages — is available in the English PDF.

Referenced standards

Normative references

ISO 5492 · ISO 5492.2008 · ISO 6658 · ISO 6658.2005 · ISO 8586 · ISO 8589 · ISO 8589.2007 · IEC 60050

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