GB/T 18107-2017 English PDF (GBT18107-2017)

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GB/T 18107-2017: Hongmu
GB/T 18107-2017
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 79.040
B 69
Replacing GB/T 18107-2000
Hongmu
红木
ISSUED ON: DECEMBER 29, 2017
IMPLEMENTED ON: JULY 1, 2018
Issued by: General Administration of Quality Supervision, Inspection and
Quarantine;
Standardization Administration of the People’s Republic of
China.
Table of Contents
Foreword ... 3 
Introduction ... 7 
1 Scope ... 8 
2 Normative References ... 8 
3 Terms and Definitions ... 8 
4 Classification ... 10 
5 Requirements ... 10 
6 Test Methods ... 10 
7 Determination ... 11 
8 Others ... 11 
Appendix A (normative) Main Characteristics of Various Categories of Hongmu
... 1 
Appendix B (informative) A Table of Hongmu Categories ... 1 
Appendix C (informative) Red Sandalwood Species and Wood Characteristics
... 5 
Appendix D (informative) Rosewood Species and Wood Characteristics ... 9 
Appendix E (informative) Scented Rosewood Species and Wood
Characteristics ... 27 
Appendix F (informative) Black Rosewood Species and Wood Characteristics
... 31 
Appendix G (informative) Violet Rosewood Species and Wood Characteristics
... 56 
Appendix H (informative) Ebony Species and Wood Characteristics ... 81 
Appendix I (informative) Striped Ebony Species and Wood Characteristics .. 89 
Appendix J (informative) Wenge Species and Wood Characteristics ... 100 
Foreword
This Standard was drafted in accordance with the rules in GB/T 1.1-2009.
This Standard serves as a replacement of GB/T 18107-2000 Hongmu. Except from
editorial modifications, the main technical changes are as follows:
---Scope is modified (see Chapter 1; Chapter 1 in Version 2000);
---“Reference Standard” is modified into “Normative References”; the guide
language is modified; LY/T 1788-2008 Standard Terminology Relating to Wood
Properties is added (see Chapter 2; Chapter 2 in Version 2000);
---“Definition” is modified into “Terms and Definitions”; the guide language is
modified (see Chapter 3; Chapter 3 in Version 2000);
---Terms “radial section”, “tangential section” and “sapwood”, and their definitions
are added (see 3.3, 3.4 and 3.13);
---The definitions of “Hongmu”, “cross section”, “growth ring”, “diffuse-porous
wood”, “axial parenchyma”, “heartwood” and “air-dry density” are modified (see
3.1, 3.2, 3.5, 3.7, 3.8, 3.12, 3.14; 3.1, 3.2, 3.3, 3.5, 3.7, 3.11, 3.12 in Version
2000);
---Terms “semi-ring porous wood”, “wood structure” and their definitions are
deleted (see 3.6 and 3.13 in Version 2000);
---“Classification” is added (see Chapter 4);
---“Category” is modified into “Requirements” (see Chapter 5; Chapter 4 in Version
2000);
---The title “Prerequisites” in “Category” is deleted (see 4.1.1, 4.2.1, 4.3.1, 4.4.1,
4.5.1, 4.6.1, 4.7.1, 4.8.1 in Version 2000);
---The requirements for “average chord diameter of pore” in “Category” are deleted
(see 4.1.1.2, 4.2.1.2, 4.3.1.2, 4.4.1.2, 4.5.1.2, 4.6.1.2, 4.7.1.2, 4.8.1.2 in
Version 2000);
---“heartwood has the wood color of red purple, as time goes by, it turns black
purple” of “red sandalwood” is modified into “heartwood has the wood color of
red purple to black purple” (see Appendix A; 4.1.1.4 in Version 2000);
---“heartwood has the wood color of reddish brown to fuchsia, and often with dark
stripes” of “rosewood” is modified into “heartwood has the wood color of light
reddish brown, reddish brown to purple reddish brown, often with dark stripes”
(see Appendix A; 4.2.1.4 in Version 2000);
---The test method “air-dry density” when sample requirements in GB/T 1933 are
not satisfied is added (see 6.4.2);
---“macro and microstructure of hongmu”, and appendixes “table of hongmu
species sources”, “macroscopic color photos of hongmu”, “microstructure
photos of hongmu” are deleted (see Chapter 6, Appendix I, Appendix J,
Appendix K in Version 2000);
---“Determination” is added (see Chapter 7);
---“Others” is modified (see Chapter 8; Chapter 7 in Version 2000);
---Informative appendix “a table of hongmu categories” is added, which includes
names, trade names, main places of origin, and regulatory or protection
information of various tree species. Specifically speaking, Vietnam padauk (a
different name of Burma padauk) and maidu (a different name of Burma padauk)
of rosewood, blackwood (a different name of Burma blackwood) of black
rosewood, ponce’s kamagong of ebony are deleted; bolong-eta of ebony is
adjusted to striped ebony; Cassia spp. of wenge is modified into Senna spp.
(see Appendix B);
---Informative appendixes “red sandalwood, rosewood, scented rosewood, black
rosewood, violet rosewood, ebony, striped ebony and wenge species, and their
wood characteristics ” are added, which includes the families, genera, foreign
trade names of the various types of trees, trees and distributions,
macrostructural characteristics and photos, microstructural characteristics and
photos, air-dry density and specimen materials (see Appendix C ~ Appendix J).
This Standard was proposed by The State Forestry Administration of the People’s
Republic of China.
This Standard shall be under the jurisdiction of National Technical Committee 41 on
Timber of Standardization Administration of China (SAC/TC 41).
The drafting organizations of this Standard: Research Institute of Wood Industry,
Chinese Academy of Forestry; Guangxi University; Nanjing Forestry University;
National Center for Quality Supervision and Inspection of Furniture and Indoor
Environment; Shanghai Wood Industry Research Institute; Zhejiang Redwood Carved
Furniture Product Quality Inspection Center; Fujian Classical Redwood Carved
Furniture Product Quality Inspection Center; National Key Laboratory of Timber
Species Identification and Wood Quarantine; National Furniture Quality Supervision
and Inspection Center (Hebei); Guangxi Zhuang Autonomous Region Forestry
Research Institute; Yunnan Product Quality Supervision and Inspection Institute; China
National Forest Products Industry Corporation; Hongmu Branch of China National
Forest Products Industry Association; Experimental Center of Subtropical Forestry,
Chinese Academy of Forestry; Beijing Hongwen Boya Traditional Hardwood Furniture
Hongmu
1 Scope
This Standard stipulates the terms and definitions, classification, requirements, test
methods, determination and others of Hongmu.
This Standard is applicable to the production, operation, trade, inspection and
identification of Hongmu and its products.
2 Normative References
The following documents are indispensable to the application of this document. In
terms of dated references, only the dated version applies to this document. In terms of
undated references, the latest version (including all the amendments) applies to this
document.
GB/T 1933 Method for Determination of the Density of Wood
LY/T 1788-2008 Standard Terminology Relating to Wood Properties
3 Terms and Definitions
What is defined in LY/T 1788-2008, and the following terms and definitions are
applicable to this document.
3.1 Hongmu
Hongmu refers to heartwood of Pterocarpus, Dalbergia, Diospyros, Cliffords and
Cassia species, and its structural characteristics, density and wood color (wood color
darkened in the atmosphere) meet the requirements of this Standard.
3.2 Cross Section
Cross section refers to a section perpendicular to the main axis of trunk.
3.3 Radial Section
Radial section refers to a section along the axis of tr...