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GB/T 45245-2025: Determination method of total organic carbon in wood-based panels and finishing products
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GB/T 45245-2025: Determination method of total organic carbon in wood-based panels and finishing products

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GB/T 45245-2025 English version. Determination method of total organic carbon in wood-based panels and finishing products ICS 79.060 CCSB70 National Standard of the People's Republic of China Determination of total organic carbon in wood-based panels and their products Released on 2025-02-28 2025-06-01 Implementation State Administration for Market Regulation The National Standardization Administration issued

Table of Contents

Preface III 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Method Description 2 5 Reagents 2 6 Instruments and equipment 2 7 Sample preparation 2 8 Measurement Step 3 9 Data processing and result presentation 4 10 Report 5 Appendix A (Informative) Reference values of total inorganic carbon in typical wood-based panels and their products 6

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 for standardization documents" Drafting. 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 State Forestry and Grassland Administration. This document is under the jurisdiction of the National Technical Committee for Standardization of Wood-Based Panels (SAC/TC198). This document was drafted by. Wood Industry Research Institute of Chinese Academy of Forestry, Zhejiang Shenghua Yunfeng New Materials Co., Ltd., Shandong New Hong Kong Enterprise Group Co., Ltd., Qiannianzhou New Materials Technology Group Co., Ltd., Jiangshan Oupai Door Industry Co., Ltd., Dehua Bunny Baby Clothing Decorative New Materials Co., Ltd., Institute of Forest Ecology, Environment and Nature Conservation, Chinese Academy of Forestry, and Master Han Integrated Home Furnishing Co., Ltd. Company, Jiusheng Flooring Co., Ltd., Zhejiang Shiyou Wood Industry Co., Ltd., Ningfeng Group Co., Ltd., Guangxi Yijiamei Wood-Based Panel Co., Ltd., Daya (Jiangsu) Flooring Co., Ltd., Jiangxi Luli Wood Industry Co., Ltd., Jiangsu Jiashijia New Materials Group Co., Ltd., Beijing Industrial Vocational Institute of Forestry and Technology, North American Maple Home Furnishing (Jiangsu) Co., Ltd., Guangxi Zhuang Autonomous Region Forestry Science Research Institute, State Forestry and Grassland Administration East Survey and Planning Institute, Institute of Botany, Chinese Academy of Sciences, Shangqiu Dingfeng Wood Industry Co., Ltd., Shandong Yimu Decoration Materials Co., Ltd., Hongwei Wood Industry (Renhua) Co., Ltd., Xuzhou Feiya Wood Industry Co., Ltd., Linyi Inspection and Testing Center, National Forestry and Grassland Administration Service Center, Southwest Forestry University, National Forestry and Grassland Administration Industrial Development Planning Institute, National Forestry and Grassland Administration Management Cadre College, Nanjing Forestry University Institute of Forestry, Chinese Academy of Forestry, Institute of Forestry, Chinese Academy of Forestry. The main drafters of this document are. Lao Wanli, Li Xiaoling, Duan Xinfang, Gao Qian, Zhao Yujuan, Wang Junfeng, Zhu Anming, Yin Yafang, Chang Liang, Zhou Xiaojian, Wang Chen, Zhang Hong, Zhu Xiaoqin, Shen Yunfang, Wei Ming, Lu Tonghua, Fang Xiaolong, Zhan Xianxu, Han Zongli, Sun Longxiang, Li Yadong, Ni Yuezhong, Wang Xiaoming, Chen Yaoli, Xingfeng, Ge Lijun, Liu Jianwen, Feng Di, Zhao Xueshu, Ma Zhaoxing, Xiang Jianping, Wu Jianguo, Yu Huaqiang, Zhang Ran, An Xin, Zhao Youke, Zhang Zhongtao, Zhang Jinning, Li Ming, Yu Lei, Zhao Zijian, Ding Tao, Yu Tianfei, Yang Guang, Li Honglei, Min Dexiu, and Yu Yanfen. Determination of total organic carbon in wood-based panels and their products

1 Scope

This document describes the non-dispersive infrared absorption spectroscopic method for the determination of total organic carbon in wood-based panels and their products, including reagents, instruments and equipment. Preparation, sample preparation, measurement steps, data processing and result presentation and reporting. This document is applicable to the determination of total organic carbon in wood-based panels and their products. This document is not applicable to the determination of total organic carbon in wood-based panels and their products that use carbonate minerals as the main additive.

2 Normative references

The contents of the following documents constitute essential clauses of this document through normative references in this document. For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to This document. GB/T 603 Preparation of preparations and products used in chemical reagent test methods GB/T 6682 Specifications and test methods for water used in analytical laboratories GB/T 18259-2018 Terminology of wood-based panels and their surface decoration GB/T 36055-2018 Analysis methods for forestry biomass raw materials - Determination of moisture content

3 Terms and definitions

The terms and definitions defined in GB/T 18259-2018 and the following apply to this document. 3.1 Wood-based panel Wood or non-wood plant fiber materials are used as the main raw materials, processed into various material units, and applied (or not applied) adhesives and other additives. Additives, made into plates or shaped products. Note. Mainly includes plywood, particle board, fiberboard, etc. [Source. GB/T 18259-2018, 2.1] 3.2 Total carbon The total amount of carbon in wood-based panels and their products. Note. Includes organic carbon and inorganic carbon. 3.3 Total organic carbon The total amount of carbon in organic form in wood-based panels and their products. 3.4 Total inorganic carbon The total amount of carbon in inorganic form in artificial boards and their products. Note. This includes carbon in the form of carbonates or bicarbonates. ...