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www.ChineseStandard.net Database: 189760 (11 Oct 2025)

GB/T 34723-2017 English PDF

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GB/T 34723-2017: Residual styrene monomer content determination in unsaturated polyester decorative wood-based panels by gas chromatography
Status: Valid

Standard ID	Contents [version]	USD	STEP2	[PDF] delivered in	Standard Title (Description)	Status	PDF
GB/T 34723-2017	English	199	Add to Cart	3 days [Need to translate]	Residual styrene monomer content determination in unsaturated polyester decorative wood-based panels by gas chromatography	Valid	GB/T 34723-2017

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Basic data

Standard ID	GB/T 34723-2017 (GB/T34723-2017)
Description (Translated English)	Residual styrene monomer content determination in unsaturated polyester decorative wood-based panels by gas chromatography
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	B70
Classification of International Standard	79.060.01
Word Count Estimation	10,152
Date of Issue	2017-11-01
Date of Implementation	2018-05-01
Issuing agency(ies)	General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China

GB/T 34723-2017: Residual styrene monomer content determination in unsaturated polyester decorative wood-based panels by gas chromatography

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Residual styrene monomer content determination in unsaturated polyester decorative wood-based panels by gas chromatography ICS 79.060.01 B70 National Standards of People's Republic of China Unsaturated polyester resin decorative panel residue Styrene monomer content - Gas chromatography Residual styrenemonomercontentdeterminationinunsaturatedpolyester (ISO 4901.2011, Reinforced plastics based on unsaturated staples- Determinationoftheresidualstyrenemonomercontent, aswelasthe contentofothervolatilearomatichydrocarbons, bygaschromatography, NEQ) Posted.2017-11-01 2018-05-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China China National Standardization Administration released

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard reference ISO 4901-2011 "Unsaturated polyester resin reinforced plastics by gas chromatography analysis of residual styrene monomer Content and other volatile aromatic content "preparation. Consistency with ISO 4901-2011 is not equivalent. This standard proposed by the State Forestry Administration. This standard by the National Panel Standardization Technical Committee (SAC/TC198) centralized. This standard was drafted unit. South China Agricultural University, Dongguan City, Tin Fook Board Co., Ltd., Guangzhou City, Bailei Wen Yi Industrial Co., Ltd., Guangdong Yao Donghua Furniture Plates Co., Ltd., Zhejiang Shenghua Yunfeng new material Co., Ltd., Henan Yongwei Security Co., Ltd.. The main drafters of this standard.Gao Zhenzhong, Lai Yuntian, Liangna new, Zeng Minhua, Sun Jin, Wang Xiaobo, Fan Qi, Xu Enguang, He Zesen, Hu Wensong, He Jia, Gu Shui-xiang, Ren Taiping. Unsaturated polyester resin decorative panel residue Styrene monomer content - Gas chromatography

1 Scope

This standard specifies the content of residual styrene monomer in unsaturated polyester resin decorative man-made board finishes by gas chromatography. This standard applies to interior decoration, furniture, doors and musical instruments such as the use of unsaturated polyester resin decorative plywood residue in benzene Determination of vinyl monomer content.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version applies to this article Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 4946 gas chromatography terminology LY/T 1070-2013 Unsaturated polyester resin decorative panel

3 Terms and definitions

GB/T 4946 defined and the following terms and definitions apply to this document. 3.1 Unsaturated polyester resin decorative plywood unsaturated polyesterresindecorativewood-basedpanel To plywood (plywood, fiberboard, particleboard, blockboard, etc.) as the substrate, the substrate coated with decorative paper or single or double-sided After the board (veneer), and then coated with unsaturated polyester resin, the cured (ie, coating) made of sheet. [LY/T 1070-2013, Definition 3.1] 3.2 Residual styrene monomer content residualstyrenemonomer Unsaturated polyester resin decorative wood-based panels unreacted during processing completely styrene monomer content.

4 principle

The residual styrene monomer is extracted from the unsaturated polyester resin polymer with methylene chloride, and the content of the styrene monomer in the extract The gas chromatography internal standard method and the standard curve method were used for the determination.

5 reagent

Dichloromethane is toxic and can cause damage to the central nervous system, liver, cardiovascular system and blood if it is swallowed, inhaled or absorbed through the skin Liquid, irritating to the skin, eyes and respiratory tract as well as carcinogenic risk depending on the level and duration of exposure. 5.1 The reagents used in this standard need to undergo a blank test prior to use, to confirm that the target retention time interval without interference peaks appear. 5.2 Carrier gas. Nitrogen or helium, purity ≥99.995%. 5.3 Gas. Hydrogen, purity ≥99.995%.

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