GB/T 33040-2016 English PDF

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GB/T 33040-2016: Identification method of heat-treated wood
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 33040-2016	199	Add to Cart	3 days	Identification method of heat-treated wood	Valid

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Basic data

Standard ID: GB/T 33040-2016 (GB/T33040-2016)
Description (Translated English): Identification method of heat-treated wood
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: B60
Classification of International Standard: 79.040
Word Count Estimation: 10,146
Date of Issue: 2016-10-13
Date of Implementation: 2017-05-01
Regulation (derived from): National Standard Notice No.1716 of 2016
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 33040-2016: Identification method of heat-treated wood

---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.
Identification method of heat-treated wood ICS 79.040 B60 National Standards of People's Republic of China Method for identification of heat treated wood 2016-10-13 released 2017-05-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China China National Standardization Management Committee released

Foreword

This standard is drafted in accordance with the rules given in GB/T 1.1-2009. This standard is proposed by the State Forestry Administration. This standard is under the jurisdiction of China Wood Standardization Technical Committee (SAC/TC41). The drafting of this standard. China Institute of Forestry, Institute of Wood Industry, South China Agricultural University, Zhejiang Shiyou Wood Co., Ltd., four Kawasaki Forestry Industry Co., Ltd., Sichuan Agricultural University, Fujian Qin Dynasty Wood Technology Co., Ltd., Guizhou Golden Bird Wood limited liability company Division, Kaiyuan Shengda Wood Drying Equipment Co., Ltd. The main drafters of this standard. Huang Rongfeng, LvjianXiong, Tu Dengyun, Gu Zisheng, Ni Yuezhong, Yu Xueli, Liu Yimin, Yu Gang, Qi Jinqiu, Zhou Yongdong, Zhao Youke, Li Xiaoling, Jiang Jiali, Guo Fei, Zhan Tianyi, Zhang Yuqing, Pan Chengfeng, Chen Jinbai, Cong Debao. Method for identification of heat treated wood

1 Scope

This standard specifies the terminology and definition of heat treated wood, inspection methods, identification indicators, determination and identification of the report. This standard applies to indoor and outdoor use of heat treatment of wood and its products identification, does not contain veneer.

2 normative reference documents

The following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this article Pieces. For undated references, the latest edition (including all modifications) applies to this document. General rules for experimental methods of wood physical mechanics GB/T Method for determination of moisture content of wood GB/T General rules for identification of wood GB/T 29894 LY/T 1788 Wood property terms

3 terms and definitions

LY/T 1788 and the following terms and definitions apply to this document. 3.1 Heat-treated wood heat-treatedwood Carbonized wood heat-treatedwood In 160 ℃ ~ 230 ℃ under low oxygen environment, for a certain time to deal with the wood. 3.2 Wood color woodcolor The color of the wood under the natural light. The color of the wood is characterized by the CIEL * a * b * color system of the International Commission on Illumination. 3.3 Color colordifference The color difference between the two samples, according to the International Commission on Illumination of the CIEL * a * b * color system calibration color and calculated the two Color difference between sample samples. 3.4 Moisture absorption equilibrium moisture content Wood in a certain temperature and relative humidity in the environment after the suction of water, the final stable water content.

4 detection method

4.1 sampling and specimen production 4.1.1 sampling The size of the sample shall be not less than 350mm in length, not less than 80mm in width, and not less than 10mm in thickness. From the same piece of sample ......

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