GB/T 19367-2022 PDF English
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| GB/T 19367-2022 | English | 155 |
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Determination of dimensions of wood-based panels
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| GB/T 19367-2009 | English | 105 |
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Wood-based panels -- Determination of dimensions of panels
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| GB/T 19367.1-2003 | English | 319 |
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Wood-based panels -- Determination of thickness, width and length of boards
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GB/T 19367-2022: Determination of dimensions of wood-based panels---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT19367-2022
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 79.060.01
CCS B 70
Replacing GB/T 19367-2009
Determination of dimensions of wood-based panels
(ISO 9426.2003, Wood-based panels - Determination of dimensions of panels, MOD)
Issued on. DECEMBER 30, 2022
Implemented on. JULY 01, 2023
Issued by. State Administration for Market Regulation;
National Standardization Administration.
Table of Contents
Foreword... 3
1 Scope... 5
2 Normative references... 5
3 Terms and definitions... 5
4 Determination methods... 6
5 Result expression... 9
6 Test report... 10
Appendix A (Informative) Comparisons of structure numbers between this document
and ISO 9426.2003... 11
Appendix B (Informative) List of technical differences between this document and ISO
9426.2003 and their reasons... 12
Foreword
This document is drafted in accordance with the provisions of GB/T 1.1-2020
"Directives for standardization - Part 1.Rules for the structure and drafting of
standardizing documents".
This document replaces GB/T 19367-2009 "Determination of dimensions of wood-
based panels". Compared with GB/T 19367-2009, in addition to structural adjustments
and editorial changes, the main technical changes are as follows.
a) ADD terms and definitions (see Chapter 3);
b) DELETE the principles, sampling, moisture content and balance processing of the
plate during measurement (see Chapters 3, 4, 5, 6 of the 2009 edition);
c) ADD the diagonal method for squareness determination (see 4.4.2);
d) CHANGE the length measurement position (see 4.2; 8.2 of the 2009 edition);
e) CHANGE the flatness determination (see 4.6; 8.5 of the 2009 edition);
f) CHANGE the thickness accuracy requirements (see 5.2; 9.1 of the 2009 edition).
This document modifies and adopts ISO 9426.2003 "Wood-based panels -
Determination of dimensions of panels".
Compared with ISO 9426.2003, this document has many structural adjustments. See
Appendix A for a list of structure number comparisons between the two documents.
Compared with ISO 9426.2003, this document has many technical differences. The
involved clauses are marked with a vertical single line (│) in the outer margin of the
page. A list of these technical differences and their causes is provided in Appendix B.
The following editorial changes have been made to this document.
a) In order to coordinate with the existing standards, CHANGE the name of the
standard into "Determination of dimensions of wood-based panels";
b) ADD note to Figure 3;
c) ADD informative appendix A and appendix B.
Please note that some content in this document may be subject to patents. The publisher
of this document assumes no responsibility for identifying patents.
This document was proposed by the State Forestry and Grassland Administration.
This document shall be under the jurisdiction of the National Standardization Technical
Committee for Wood-based panels (SAC/TC 198).
Drafting organizations of this document. Wood Industry Research Institute of the
Chinese Academy of Forestry Sciences, Huzhou Inspection and Testing Center, Suzhou
Product Quality Supervision and Inspection Institute, Hongmu Fang Home Technology
(Huzhou) Co., Ltd., Shengxiang Group Co., Ltd., Dehua Bunny Decoration New
Materials Co., Ltd., Zhaoqing Yaodonghua Decoration Materials Technology Co., Ltd.,
Zhejiang Academy of Forestry Sciences, Zhejiang Shenghua Yunfeng New Materials
Co., Ltd., Jiangxi General Institute of Inspection, Testing and Certification Industrial
Product Inspection and Testing Institute, Nanjing Forestry University, Shanghai Wood
Industry Research Institute Co., Ltd., Shanghai Quality Supervision and Inspection
Technology Research Institute, Changzhou Inspection and Testing Standards
Certification Research Institute, Quzhou Fangyuan Forest Products Inspection and
Testing Co., Ltd., Zhaoqing Modern Zhumei Home Furnishing Co., Ltd., Shouguang
Lulimu Industry Co., Ltd., Sophia Home Furnishing Hubei Co., Ltd., Guangxi
Zhuangxiang Wood Industry Co., Ltd., Jiangsu Jiashijia New Materials Group Co., Ltd.,
Langfang Xingshan Wood Industry Co., Ltd., Jiangshan Opai Door Industry Co., Ltd.,
Jiangshan Hua Carpenter Home Co., Ltd., Zhejiang Xinxia Decoration Materials Co.,
Ltd., Jiangshan Jintu Wood Industry Co., Ltd., Jiangshan Haifan Wood Industry Co.,
Ltd.
The main drafters of this document. Peng Limin, Lu Jun, Jia Dongyu, Wen Liang, Cao
Liuna, Zhang Chao, Jiang Zhihua, Zhan Xianxu, Zeng Minhua, Tang Yuanming, Peng
Fei, Zhu Qin, Jin Juwan, Tian Qikui, Li Wenzhong, Deng Chao, Hu Gouying, Zhong
Yaocan, Zhong Duzhang, Wang Junxiang, Rong Bo, Zhu Zhihua, Wang Lanchun, Wang
Zhiming, Huang Jun, Wang Zhihua, Mao Wenzuo, Yu Jianhua, Chen Yu, Ding
Chenghua, Feng Yun, He Jinrong, Wang Huishan, Wang Ying.
This standard replaces the standard previously issued as follows.
- It was first released in 2003 as GB/T 19367.1-2003 and GB/T 19367.2-2003;
- In the first revision in 2009, GB/T 19367.1-2003 and GB/T 19367.2-2003 were
merged into GB/T 19367-2009;
- This is the second revision.
Determination of dimensions of wood-based panels
1 Scope
This document describes methods for the determination of length, width, thickness,
squareness, edge straightness, flatness of wood-based panels.
This document is applicable to the dimensional determination of wood-based panels.
2 Normative references
The contents of the following documents constitute essential provisions of this
document through normative references in the text. Among them, for dated reference
documents, only the version corresponding to the date applies to this document; for
undated reference documents, the latest version (including all amendments) applies to
this document.
JB/T 12202-2015 Wedge feeler gauge
3 Terms and definitions
The following terms and definitions apply to this document.
The degree of lateral bending deformation in the direction perpendicular to the edge
of the plate (including the length side and width side).
4 Determination methods
Measure the thickness of the panel, at a distance of 24 mm ~ 50 mm from the edge of
the panel.
Place the mechanical square (4.1.4) on the panel corner, with one arm close to one side
of the panel corner. Select steel square (4.1.5), feeler gauge (4.1.7), wedge feeler gauge
(4.1.8), or vernier caliper (4.1.3) according to the measurement range, to measure the
distance δ1 between the 1000 mm point of the mechanical square arm and the edge of
the panel (see Figure 1).
5 Result expression
The result is the maximum spacing divided by the length of that side, expressed in
millimeters per meter (mm/m). The width and length of the panel are expressed
separately.
The results are expressed as the ratio of the maximum deformation value to the diagonal
of the panel, expressed in millimeters per meter (mm/m).
6 Test report
The test report shall contain the following information.
Appendix A
(Informative)
Comparisons of structure numbers between this document and ISO 9426.2003
Appendix B
(Informative)
List of technical differences between this document and ISO 9426.2003 and their
reasons
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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