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GB/T 44690-2024Classification of volatile organic compounds emission from wood-based panels and their products (English PDF)

人造板及其制品挥发性有机化合物释放量分级

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

September 29, 2024

Implementation date

April 1, 2025

Scope

GB/T 44690-2024 is the English-translated version of 人造板及其制品挥发性有机化合物释放量分级.

GB/T 44690-2024 is the Chinese national standard covering the grades that rank a panel or a finished wooden product by what it releases into a room — the twelve target volatile organic compounds, the total VOC measured between n-hexane and n-hexadecane, the total volatile carbonyl compounds from formaldehyde to the tolualdehydes, the compounds exempted from the count, the release chamber test, and the judgment rules that turn those figures into a class a buyer can compare. First edition, alongside the odour grading standard GB/T 44689-2024, under the National Forestry and Grassland Administration. In force from 1 April 2025. Issued on 29 September 2024, it has been in force since 1 April 2025.

Document preview — GB/T 44690-2024

National Standard of the People's Republic of China

ICS: 79.060.01
Classification: B 70

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

Foreword3
1 Scope5
2 Normative references5
3 Terms and definitions5
4 Classification requirements7
5 Test methods7
6 Judgment rules8
Appendix A (Normative) Types of exempted compounds9

Foreword

This document was drafted in accordance with the provisions of GB/T 1.1-2020 Directives for standardization - Part 1: Rules for the structure and drafting of standardizing documents.

Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.

This document was proposed by the National Forestry and Grassland Administration.

This document is under the jurisdiction of the National Technical Committee on Wood- based Panels of Standardization Administration of China (SAC/TC198).

Drafting organizations of this document: Northeast Forestry University, Bapps (Tianjin) New Materials Technology Co., Ltd., Shandong Xingang Enterprise Group Co., Ltd., Tianjin Shengshide New Material Technology Co., Ltd., Zhejiang Shenghua Yunfeng Greeneo Co., Ltd., Liaoning Academy of Forest Science, Research Institute of Wood Industry of Chinese Academy of Forestry, Industrial Products Testing Center of Nanjing Customs District P. R. China, Baroque Timber Industries (Zhongshan) Co., Ltd., Shenzhen Hongnai Wood Industry Co., Ltd., Dare Wood-Based Panels Group Co., Ltd., OPPEIN Home Group Co., Ltd., Kunming Feilin Wood-Based Panel Group Co., Ltd., Tsinghua University, Shanghai Wood Industry Research Institute Co., Ltd., Arte Mundi Group Co., Ltd., Powerdekor Group Co., Ltd., Millennium Boat New Materials Technology Group Co., Ltd., Dongguan Huafuli Decoration Building Materials Co., Ltd., Dehua Tubao New Decoration Material Co., Ltd., Guangzhou Holike Creative Home Co., Ltd., Zhejiang Shiyou Timber Co., Ltd., Sofia Household Hubei Co., Ltd., Jiusheng Wood Co., Ltd., Mengtian Home Group Co., Ltd., Hangzhou Dawangye Supply Chain Technology Co., Ltd., Beijing Tata Door Industry Co., Ltd., Suzhou Dawei Wooden Co., Ltd., ZBOM Home Collection Co., Ltd., Shandong Qianshan Wood Industry Group Co., Ltd., Shandong Shengchang New Materials Co., Ltd., Jiangsu Fuqing Home Furnishings Co., Ltd., Shouguang Luli Wood Industry Co., Ltd., Beixin International Wood Industry Co., Ltd., Dongguan City Simplewell Technology Co., Ltd., Huanggang Saintdecor Co., Ltd., Ruitong Polymer Technology (Zhejiang) Co., Ltd., Nanjing Institute of Product Quality Inspection (Nanjing Institute of Quality Development and Advanced Technology Application), Linyi Inspection and Testing Center, Guangdong Dongguan Quality Supervision and Inspection Center, Puxu Environmental Protection Technology Equipment (Taicang) Co., Ltd., Shanghai Qinpei Environmental Protection Technology Co., Ltd., Guangzhou GRG Metrology and Test Co., Ltd., Shandong Weifeng Biotechnology Co., Ltd., Northwest Agriculture and Forestry University, Fujian Agriculture and Forestry University, Heilongjiang Institute of Wood Science.

Classification of volatile organic compounds emission from wood-based panels and their products

1 Scope

This document defines the terms and definitions for the classification of volatile organic compound emissions from wood-based panels and their finishing products, stipulates the classification requirements and judgment rules, and describes the corresponding test methods.

This document applies to the classification of volatile organic compound emissions during the production, inspection and trade of wood-based panels and finishing products for interior decoration and finishing.

2 Normative references

GB/T 18259-2018

GB/T 29899-2024

3 Terms and definitions

The terms and definitions defined in GB/T 18259-2018, GB/T 29899-2024 and the following apply to this document.

3.1 Wood-based panels

Boards or shaped products that are made of various material units processed from wood or non-wood plant fiber materials as the main raw materials, and with adhesives and other additives are applied (or not applied).

NOTE: It mainly includes plywood, particle board, fiberboard, etc.

[Source: GB/T 18259-2018, 2.1]

3.2 Wood-based panel finishing products

Products or components made by further processing of artificial boards as the main material.

NOTE: It mainly includes veneer artificial boards, wooden wall panels, wooden floors, wooden doors, wooden lines, wooden stairs and wooden home furnishing parts, etc.

3.3 Volatile organic compounds; VOCs

All organic compounds that are released from the test specimen and detected in the air at the outlet of the release chamber.

NOTE: The VOCs selected and analyzed in the product are called "target volatile organic compounds" (referred to as target VOCs). In this document, the target volatile organic compounds are 12 types, including benzene, toluene, xylene (o-, m-, p-), biphenyl, terphenyl (o-, m-, p-), 4-phenylcyclohexene, naphthalene and phenol.

[Source: GB/T 29899-2024, 3.5, modified]

3.4 Total volatile organic compounds; TVOC

The sum of organic compounds separated by a non-polar or weakly polar capillary column (polarity index less than 10) with a retention time between n-hexane and n- hexadecane.

NOTE 1: Based on the peak area quantification, compounds other than the target VOCs are calculated using the response factor of toluene.

NOTE 2: The calculation process of TVOC is similar to the summation process of VOCs concentration in the outlet air.

[Source: GB/T 29899-2024, 3.6]

3.5 Total volatile carbonyl compounds

The sum of 15 compounds, including formaldehyde, acetaldehyde, acrolein, acetone, benzaldehyde, butyraldehyde, valeraldehyde, 2,5-dimethylbenzaldehyde, crotonaldehyde, isovaleraldehyde, propionaldehyde, hexanal, o-tolualdehyde, p- tolualdehyde and m-tolualdehyde.

[Source: GB/T 29899-2024, 3.8]

3.6 Exempted compounds

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

Referenced standards

Normative references

Cited by

Editions of GB/T 44690

Edition	Title	Revision	Status
GB/T 44690-2024	Classification of volatile organic compounds emission from wood-based panels and their products	current edition	Current

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