LY/T 3230-2020Classification of volatile organic compounds emission contents from wood-based panels and their finishing products (English PDF)

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1: Structure and Drafting Rules of Standardization Documents" Drafting.

Please note that some contents of this document may involve patents, the publication of this document the agency is not responsible for identifying these patents.

This document was proposed and managed by the National Wood-based Panel Standardization Technical Committee (SAC/TC 198).

Drafting organizations of this document. Northeast Forestry University, Liaoning Academy of Forestry, Research Institute of Wood Industry, Chinese Academy of Forestry, Nanjing Customs Industrial Product Testing Center, Xiamen Junxiang Wood Industry Co., Ltd., Sophia Home Furnishing Co., Ltd., Wanhua Chemical Group Co., Ltd., Zhaoqing Modern Zhumei Home Furnishing Co., Ltd., Dongguan Quality Supervision and Testing Center of Guangdong Province, Espec Environmental Instruments (Shanghai) Co., Ltd., Baroque Wood (Zhongshan) Co., Ltd., Daya Wood-based Panel Group Co., Ltd., Shengxiang Industry (Jiangsu) Co., Ltd., Zhejiang Jiangshenghua Yunfeng New Materials Co., Ltd., Yunnan Xinzexing Wood-based Panel Co., Ltd., Zhejiang Shiyou Wood Industry Co., Ltd., Guangxi Sunway Forest Industry Co., Ltd.

Industry Co., Ltd., Guangxi Guoxu Forestry Development Group Co., Ltd., Dehua Bunny Decoration New Material Co., Ltd., Hubei Fangyuan Environmental Protection Technology Co., Ltd., Nanjing Product Quality Supervision and Inspection Institute, Shenzhen Songboyu Technology Co., Ltd., Guangxi Fenglin Wood Industry Group Co., Ltd.

Co., Ltd., Shuxiangmendi (Shanghai) Aesthetic Home Furnishing Co., Ltd., Zhejiang Liangyou Wood Industry Co., Ltd., Dongguan Shengwei Electromechanical Equipment Division Technology Co., Ltd., Jiangsu Senmao Bamboo and Wood Industry Co., Ltd.

1 Scope

This document specifies the terms and definitions, emission classification, inspection methods, Inspection rules and inspection reports.

This document is applicable to the grading of volatile organic compound emissions of wood-based panels and their products for interior decoration.

2 Normative references

The contents of the following documents constitute indispensable clauses of this document through normative references in the text. Among them, dated reference documents, Only the dated version is applicable to this document; for undated references, the latest version (including all amendments) is applicable to this document file.

Note. For undated references, if the latest version contains the quoted content, then the last version containing the quoted content applies.

GB/T 18259-2018 Artificial board and its surface decoration terms GB/T 29899-2013 Test method for the emission of volatile organic compounds in wood-based panels and its products. Small release chamber method

3 Terms and definitions

The following terms and definitions defined in GB/T 18259-2018 and GB/T 29899-2013 apply to this document. For ease of use, to Some terms and definitions in GB/T 18259-2018 and GB/T 29899-2013 are repeatedly listed below.

Wood-based panel

Using wood or non-wood plant fiber materials as the main raw materials, processing into various material units, applying (or not applying) adhesives and other Additives, made of sheets or shaped products.

Note. Mainly includes plywood, particle board, fiberboard, etc.

[GB/T 18259-2018, definition 2.1] 3.2 Volatile organic compounds; VOCs all organic compounds released by 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" (denoted as target VOCs). The target volatile organic compounds in this standard for benzene, toluene, xylene (ortho, m, and p), biphenyl, terphenyl (o, m, and p), 4-phenylcyclohexene and naphthalene.

[Rewrite GB/T 29899-2013, definition 3.10] 3.3 Total volatile organic compounds; TVOC the retention time of non-polar column separation and gas chromatography detection is between n-hexane and n-hexadecane (including n-hexane and n-hexadecane) the sum of organic compounds. According to the peak area quantification, except for the target volatile organic compound, the mass of other compounds is measured by the response factor of toluene Calculation.

Note 1.The calculation of TVOC is similar to the process of summing the VOCs concentration in the outlet air.

Note 2.When using GC/MS, use total ion current (TIC) to analyze TVOC.

[GB/T 29899-2013, definition 3.11] 3.4 Carbonyl compounds Aldehydes and Ketones all aldehydes and ketone compounds that are released from the test specimen and detected in the air at the outlet of the release chamber.

Note. The selection and analysis of aldehydes and ketones in the product is called "target aldehydes and ketones". In this standard, the target aldehydes and ketones are formaldehyde (CAS No.

50-00-0), acetaldehyde (CAS No.75-07-0), acrolein (CAS No.107-02-8), acetone (CAS No.97-64-1), benzaldehyde (CAS No. 100-52-7), butyraldehyde (CAS No. 123-72-8), valeraldehyde (CAS No. 110-6203), 2,5-dimethylbenzaldehyde (CAS No.

5779-94-2), crotonaldehyde (CAS No. 4170-30-3), isovaleraldehyde (CAS No. 590-86-3), propionaldehyde (CAS No. 123-38-6), Hexanaldehyde (CAS No.66-25-1), o-tolualdehyde (CAS No.529-20-4), p-tolualdehyde (CAS No.104-87-0) and meta-formaldehyde Benzaldehyde (CAS No. 620-23-5).

[Rewrite GB/T 29899-2013, definition 3.12] 3.5 Total carbonyl compounds Formaldehyde, acetaldehyde, acrolein, acetone, benzaldehyde, butyraldehyde, valeraldehyde, 2,5-dimethylbenzaldehyde, crotonaldehyde, isovaleraldehyde, propionaldehyde, the total mass concentration of 15 compounds of hexanal, o-tolualdehyde, p-tolualdehyde and m-tolualdehyde.

Background concentration Use clean air as the carrier gas to release the outlet concentration of the target compound in the chamber when it is empty.

[GB/T 29899-2013, definition 3.15] 3.7 Loading factor Product load rate the ratio of the exposed surface area of the test piece to the volume of the release chamber.

[GB/T 29899-2013, definition 3.17] 3.8 Equilibrium concentration After the test piece is placed in the release chamber, the total volatile organic compounds and total aldehydes and ketones measured at the outlet of the release chamber when they reach a stable release state the mass concentration of the compound.

Classification of emission contents According to the balance concentration of total volatile organic compounds and total aldehydes and ketones of wood-based panels and their products, the release of products is classified.

4 Release classification

The emission levels of volatile organic compounds from wood-based panels and their products are divided into level I and level II, as shown in Table 1.

5 Inspection method

6 Inspection rules

7 Inspection report

7.1 The content of the inspection report should include the product name, specification, category, release classification, production date, inspection execution standards and test methods Wait.

7.2 Test results and conclusions.

7.3 Abnormal situations and other problems that need to be explained during the inspection.