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GB/T 29894-2013: General method of wood identification
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GB/T 29894-2013	English	279	Add to Cart	3 days [Need to translate]	General method of wood identification

GB/T 29894-2013: General method of wood identification

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General method of wood identification ICS 79.080 B69 National Standards of People's Republic of China Identification of timber General Issued on. 2013-11-12 2014-04-11 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules. This standard was proposed by the State Forestry Administration. This standard by the National Standardization Technical Committee timber (SAC/TC41) centralized. This standard is drafted by. Guangxi University. Participated in the drafting of this Standard. China Forestry Science Institute of Wood Industry, Zhangjiagang Exit Inspection and Quarantine, Guangdong Products Quality Supervision and Inspection Institute, Shanghai Huihao doors Manufacturing Co., Ltd., Zhejiang Nanxun Wood Products Quality Inspection Center of the quality inspection. The main drafters of this standard. Xu Feng, Jiang Xiaomei, Chen Xudong, Hailing ultra runners-up, Cuiqi Peng, Fu Lin Yun, Zhou Shaoying, Muji Ping, Zhu Jun, Shen Shifa, Chengui Dan, Tan cited Luan, Liao Xiaomei, Li Minhua Zhang shellfish. Identification of timber General

1 Scope

This standard specifies the terms and definitions timber identification, sampling methods, production methods, constructors photo shoot, timber identification features, dense wood Determination, wood species determination and identification report. This standard applies to wood and wood products Identification of timber species (wood species).

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. GB/T 1933 Wood Density Determination LY/T 1788-2008 term nature of timber

3 Terms and Definitions

LY/T 1788-2008 and as defined in the following terms and definitions apply to this document. 3.1 Cross section crosssection And tree trunks spindle or wood grain perpendicular to the section. Also known as end or cross-section. [LY/T 1788-2008, the definition 3.2.6] 3.2 Radial section radialsection Axially along the trunk, cut through wood and pith rays parallel or perpendicular to the ring. [LY/T 1788-2008, the definition 3.2.7] 3.3 String section tangentialsection No pith through the trunk longitudinal section. [LY/T 1788-2008, the definition 3.2.8] 3.4 Sapwood sapwood Located close to the outer bark of the trunk portion of the timber, typically contain living cells and storage material (such as starch, etc.). Sapwood species refers to the heart No significant difference in the color of sapwood, wood color uniform by the whole body. [LY/T 1788-2008, the definition 3.2.9] 3.5 Heartwood heartwood Wood (raw material) transverse plane, by pith part of the general wood color darker, less water timber, from the evolution of the sapwood. Heartwood species Is the difference between heartwood and sapwood distinct species. [LY/T 1788-2008, the definition 3.2.10] ...