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GB/T 44290-2024 English PDF

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GB/T 44290-2024: Calculation method of biogenic carbon content in wood and wood-based products
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GB/T 44290-2024English199 Add to Cart 3 days [Need to translate] Calculation method of biogenic carbon content in wood and wood-based products Valid GB/T 44290-2024

PDF similar to GB/T 44290-2024


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Basic data

Standard ID GB/T 44290-2024 (GB/T44290-2024)
Description (Translated English) Calculation method of biogenic carbon content in wood and wood-based products
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard B68
Classification of International Standard 79.010
Word Count Estimation 10,139
Date of Issue 2024-09-29
Date of Implementation 2025-04-01
Issuing agency(ies) State Administration for Market Regulation, China National Standardization Administration

GB/T 44290-2024: Calculation method of biogenic carbon content in wood and wood-based products

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Calculation method of biogenic carbon content in wood and wood-based products Calculation method of biogenic carbon content of wood and wood products ICS 79.010 CCS B 68 National Standard of the People's Republic of China Released on 2024-09-29 2025-04-01 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 Determination of Carbon Content ... 2 4.1 Carbon content of wood 2 4.2 Carbon content of wood products 2 5 Determination of the absolute dry quality of wood and wood products 2 5.1 Determination of moisture content 2 5.2 Quality determination 2 5.3 Determination of the absolute dry quality of wood and wood products 2 6 Calculation of biogenic carbon content and its conversion to biogenic carbon dioxide ... 3 6.1 Calculation of biogenic carbon content 3 6.2 Calculation of biogenic carbon dioxide ... 3 7 Report ... 3 Appendix A (Informative) Calculation Examples ... 4 References ... 5

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 is required. Please note that some of the contents of this document may involve patents, and 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 on Timber Standardization (SAC/TC 41). This document was drafted by. Wood Industry Research Institute of Chinese Academy of Forestry, Shandong Xingang Enterprise Group Co., Ltd., Qiannianzhou New Materials Technology Group Co., Ltd., Zhejiang Shenghua Yunfeng New Materials Co., Ltd., Hanshifu Integrated Home Furnishing Co., Ltd., Zhonglin Times Holdings Co., Ltd. Ltd., Zhejiang Shiyou Wood Industry Co., Ltd., Jiusheng Flooring Co., Ltd., North American Maple Home Furnishing (Jiangsu) Co., Ltd., National Forestry and Grassland Bureau East China Survey and Planning Institute, Zhongchuang Green Building (Jiangsu) Security Technology Co., Ltd., Forestry Science and Technology Information Research, Chinese Academy of Forestry Institute, Nanjing Forestry University, and State Forestry and Grassland Administration Management Cadre College. The main drafters of this document are. Yu Huaqiang, Li Xiaoling, Duan Xinfang, An Xin, Wei Ming, Zhang Xunya, Zhao Youke, Yin Yafang, Xiao Shaoliang, Lao Wanli, Zhang Ran, Lu Tonghua, Zhao Jianzhong, Han Zongli, Jiang Shengbo, Dou Qingqing, Wang Yanwei, Min Dexiu, Li Xin, Hong Yifeng, Zhu Anming, Yang Shuming, Mei Changtong, Yang Zhong, Chen Yong, Yu Tianfei. Calculation method of biogenic carbon content of wood and wood products

1 Scope

This document describes the calculation method for the biogenic carbon content of wood and wood products and its conversion to biogenic carbon dioxide. This document applies to the calculation of the biogenic carbon content of wood and wood products and its conversion to biogenic carbon dioxide. Note. The biochar content in wood and wood products does not include the biochar contained in additives such as adhesives and modifiers in wood products.

2 Normative references

The contents of the following documents constitute the 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. in this document. GB/T 1927.4 Test methods for physical and mechanical properties of small defect-free wood specimens Part 4.Determination of moisture content GB/T 1927.5 Test methods for physical and mechanical properties of small defect-free wood specimens Part 5.Determination of density GB/T 17657-2022 Test methods for physical and chemical properties of wood-based panels and veneered wood-based panels LY/T 1788 Terminology of Wood Properties

3 Terms and definitions

The terms and definitions defined in LY/T 1788 and the following apply to this document. 3.1 Wood-based products Products derived wholly or partly from wood or wood units. Note. It is a product that has been processed by mechanical, chemical, biological and/or thermal treatment. [Source. ISO 38200.2018, 3.3] 3.2 Biochar Carbon from biomass. [Source. ISO 14067.2018, 3.1.7.2] 3.3 biogenic CO2; biogenic carbon dioxide Carbon dioxide obtained after oxidation of biochar. Example. Carbon dioxide released into the atmosphere from the oxidation of wood and wood products when they are burned for energy at the end of their life. [Source. ISO 19694-1.2021, 3.4, modified] 3.4 Carbon content carbon fraction of wood or wood-based products cf The ratio of the mass of biochar contained in wood and wood products to their absolute dry mass.

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