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GB/T 46321-2025Assessment of fungal growth resistance of adhesive (English PDF)

胶粘剂耐真菌生长性的评估

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

October 5, 2025

Implementation date

May 1, 2026

Scope

GB/T 46321-2025 is the English-translated version of 胶粘剂耐真菌生长性的评估.

GB/T 46321-2025 is the Chinese standard "Assessment of fungal growth resistance of adhesive". Its scope clause reads: This document describes the assessment method for the resistance of adhesives to fungal growth, including the test principle, standard test conditions, test equipment and materials, and culture.

Culture medium and reagents, experimental procedures, result evaluation, and experimental reports. This document is applicable to the assessment of the resistance of adhesives to fungal growth in ordinary environments or the persistence of resistance to fungal growth after exposure to severe environmental conditions.

The assessment. Its clauses include terms and definitions; experimental principle.

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Document preview — GB/T 46321-2025

National Standard of the People's Republic of China

ICS: 83.180
Classification: G 38

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

Preface
1.Scope
2 Normative References
3.Terms and Definitions
4.Experimental Principle
5 Standard Test Conditions
6.Test apparatus and materials
7.Culture media and reagents
8.Experimental Procedure
9.Results Evaluation 7.
10 Test Reports
Appendix A (Normative) Image Recognition Methods
Appendix B (Informative) Culture Medium Preparation
References

1 Scope

This document describes the assessment method for the resistance of adhesives to fungal growth, including the test principle, standard test conditions, test equipment and materials, and culture.

Culture medium and reagents, experimental procedures, result evaluation, and experimental reports.

This document is applicable to the assessment of the resistance of adhesives to fungal growth in ordinary environments or the persistence of resistance to fungal growth after exposure to severe environmental conditions.

The assessment.

2 Normative references

The contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are not included.

For references to documents, only the version corresponding to that date applies to this document; for undated references, the latest version (including all amendments) applies.

This document.

GB/T 2943 Adhesive Terminology

GB/T 6682 Specifications and test methods for water used in analytical laboratories

GB/T 19258.1 Ultraviolet radiation sources for sterilization - Part 1.Low-pressure mercury vapor discharge lamps

YY0569 Class II Biosafety Cabinet

3 Terms and Definitions

The terms and definitions defined in GB/T 2943, as well as the following terms and definitions, apply to this document.

3.1 fungus

One type lives a heterotrophic life, does not perform photosynthesis, has eukaryotic cells, and its vegetative body is a single cell or filamentous hyphae. Its cell wall contains chitin.

Or cellulose, an organism with asexual and sexual reproduction characteristics.

[Source. GB/T 12728-2006, 2.1.1]

3.2

The ability to tolerate or even inhibit the growth and reproduction of fungi on materials.

3.3

Even after being subjected to harsh environmental conditions, the material still retains its resistance to fungal growth.

4 Experimental Principle

A method simulating a fungal growth environment was used to culture adhesive specimens pre-inoculated with fungi. The growth of fungi on the specimen surface was then analyzed.

The condition and the percentage of fungal area are assessed to determine the fungal resistance level of the adhesive.

GB/T 41657 | GB 30982 | GB/T 31125 | GB/T 47087 | GB/T 22396 | […]

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 16 pages — is available in the English PDF.

Referenced standards

Normative references

YY0569

Editions of GB/T 46321

Edition	Title	Revision	Status
GB/T 46321-2025	Assessment of fungal growth resistance of adhesive	current edition	Current

This page sells the current edition, GB/T 46321-2025. Earlier editions are listed for reference only.

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