GB/T 44690-2024 PDF English
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GB/T 44690-2024: Classification of volatile organic compounds emission from wood-based panels and their products
---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT44690-2024
GB
NATIONAL STANDARD OF THE
PEOPLE'S REPUBLIC OF CHINA
ICS 79.060.01
CCS B 70
Classification of volatile organic compounds emission from
wood-based panels and their products
ISSUED ON: SEPTEMBER 29, 2024
IMPLEMENTED ON: APRIL 1, 2025
Issued by: State Administration for Market Regulation;
Standardization Administration of PRC.
Table of Contents
Foreword ... 3
1 Scope ... 5
2 Normative references ... 5
3 Terms and definitions ... 5
4 Classification requirements ... 7
5 Test methods ... 7
6 Judgment rules ... 8
Appendix A (Normative) Types of exempted compounds ... 9
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
The provisions of the following documents constitute the essential clauses of this
document through normative references in this text. Among them, for referenced
documents with dates, only the versions corresponding to the dates are applicable to
this document; for referenced documents without dates, the latest versions (including
all amendments) are applicable to this document.
GB/T 18259-2018 Terminology for wood-based panels and their surface decoration
GB/T 29899-2024 Determination of the emission of volatile organic compounds
from wood-based panels and furnishing products - Small chamber method
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
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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